WAEC SSCE - Animal Husbandry - 2019
Pergunta 1 Relatório
Failure of the testes to descend into the scrotal sac in livestock is referred to as___________
Detalhes da Resposta
The failure of the testes to descend into the scrotal sac in livestock is referred to as "cryptorchidism". Cryptorchidism is a condition where one or both testes fail to descend from the abdomen into the scrotal sac, where they normally reside. This condition is relatively common in many species of livestock, including bulls, rams, and boars. Cryptorchidism can have negative effects on fertility and is a heritable trait, meaning that it can be passed on to offspring. Therefore, it is important for livestock producers to identify and cull cryptorchid animals from their breeding programs to maintain herd health and productivity.
Pergunta 2 Relatório
Which of the following grass species is used for roofing farmstead?
Detalhes da Resposta
Pergunta 3 Relatório
The parasite illustrated in the diagram above is_______
Detalhes da Resposta
The organism illustrated in the diagram appears to be Trypanosoma sp. Trypanosomes are a group of unicellular parasitic protozoa that can cause diseases in humans and animals. They are characterized by their elongated and slender shape, with a single flagellum that allows them to move through the bloodstream of their host. Trypanosomes can cause diseases such as African trypanosomiasis, also known as sleeping sickness, and Chagas disease in humans, as well as nagana and surra in animals. Therefore, the answer to the question is Trypanosoma sp.
Pergunta 4 Relatório
The egg yolk in the diluents used in artificial insemination_________
Detalhes da Resposta
Pergunta 6 Relatório
Staggered gait and rough coat are signs which indicate that the animal is_________
Detalhes da Resposta
Staggered gait and rough coat are signs that indicate that the animal is sick. A staggered gait refers to an unsteady or uneven walking pattern, which can be a sign that the animal is in pain or discomfort. A rough coat can indicate that the animal is not feeling well, as a healthy animal will usually have a smooth, shiny coat. These signs can be caused by a variety of illnesses or diseases, and it is important to seek veterinary care if you notice these symptoms in your animal. Early diagnosis and treatment can help to prevent the illness from becoming more severe and improve the chances of a full recovery.
Pergunta 7 Relatório
Which of the following parasites could be controlled through the management practice illustrated?
Detalhes da Resposta
Pergunta 9 Relatório
Which of the following activities are involved in the process of rumination?
I. Re-chewing
II Regurgitation
III, Vomiting
Detalhes da Resposta
Rumination is a process of digestion that occurs in ruminant animals like cattle, sheep, and goats. During rumination, the animal regurgitates and re-chews partially digested food, which is also called cud. This process helps to break down the plant matter more thoroughly and extract more nutrients. Vomiting is not part of the process of rumination because it involves the expulsion of undigested food from the stomach, rather than the re-chewing of partially digested food. Therefore, the correct answer is (a) I and II only.
Pergunta 10 Relatório
A partially fermented preserved forage is referred to as___________
Detalhes da Resposta
The correct answer is "Silage." Silage is a type of preserved forage that is made by partially fermenting grass, corn, or other crops. The process of making silage involves chopping the crops into small pieces, packing them tightly into a container such as a silo, and allowing them to ferment for several weeks. During fermentation, the natural sugars in the crops are converted to lactic acid by bacteria, which helps to preserve the forage. Silage is an important source of winter feed for livestock, as it provides a nutritious and palatable source of roughage. It is also a convenient way to store excess crops for later use, and can help farmers to make the most of their land and resources. Compost, soilage, and straw are all related to agriculture, but are not the same as silage. Compost is a type of organic matter that is decomposed and recycled to improve soil quality, while soilage refers to fresh forage that is fed to livestock directly from the field. Straw is a byproduct of cereal crops that is used for animal bedding or as a source of roughage, but is not fermented like silage.
Pergunta 11 Relatório
An area of land on which forage grass and legumes naturally grow is called________
Detalhes da Resposta
Pergunta 12 Relatório
The process of obtaining wool from a live sheep is known as_______
Detalhes da Resposta
The correct answer is "Shearing." Shearing is the process of removing the wool fleece from a sheep's body. It is typically done once a year, usually in the spring or early summer, when the sheep's wool is at its longest and heaviest. Shearing is an important part of sheep husbandry for several reasons. First, removing the wool helps to keep the sheep clean and healthy by reducing the risk of parasitic infestations and skin infections. Second, the wool is a valuable commodity that can be used to make a variety of products, including clothing, blankets, and carpets. During shearing, the sheep is typically restrained on a special shearing stand or table. The fleece is then removed using electric or manual shears, which cut the wool close to the skin without injuring the sheep. The wool is then sorted by quality and sent to a processing facility, where it is cleaned, carded, and spun into yarn. Overall, shearing is an important part of the wool production process and helps to ensure the health and well-being of sheep while providing a valuable resource for the textile industry.
Pergunta 13 Relatório
Which of the following animals is kept mainly for animal traction?
Detalhes da Resposta
The animal that is mainly kept for animal traction is the "bullock". A bullock is a castrated male cow that is trained to pull heavy loads, such as carts or plows, as a form of animal power. Bullocks are preferred for animal traction due to their strength and docile nature, which makes them easier to train than other animals such as horses or donkeys. In many parts of the world, bullocks are still used for agriculture and transportation, especially in rural areas where machinery is not readily available or affordable. Therefore, the correct option is "bullock".
Pergunta 14 Relatório
The diagram above illustrates the management practice called________
Detalhes da Resposta
Pergunta 15 Relatório
During incubation of chicken eggs, the first candling is usually carried out after_____________
Detalhes da Resposta
The correct answer is "six days." Candling is a process of shining a bright light through an egg to observe the growth and development of the embryo inside. During incubation of chicken eggs, candling is usually done at several points to monitor the growth and development of the embryo and check for any problems or defects. The first candling is typically carried out after six days of incubation. At this stage, the embryo should have developed to a point where it is visible when a bright light is shone through the eggshell. The candling process at this stage allows the farmer to check for any signs of embryo development, such as the presence of veins or blood vessels, and to identify any clear or unfertilized eggs that can be removed from the incubator. Subsequent candlings are typically done at around ten and eighteen days of incubation, to monitor the continued growth and development of the embryo and check for any potential problems. The final candling is usually done on the 21st day, which is the day that the chicks are expected to hatch. At this point, the farmer can identify any eggs that have not developed properly and remove them from the incubator.
Pergunta 16 Relatório
In the marketing of animal products, middlemen create artificial scarcity in order to_______
Detalhes da Resposta
The correct answer is "make abnormal profit." Middlemen are individuals or companies who act as intermediaries between producers and consumers of goods or services. In the marketing of animal products, middlemen may create artificial scarcity by limiting the supply of animal products available on the market. By doing so, they can create a situation where demand for the products outstrips supply, which in turn allows them to charge higher prices and make abnormal profits. Artificial scarcity can be created in a number of ways, such as by hoarding products, restricting access to markets, or manipulating prices. In some cases, middlemen may even resort to unethical or illegal practices in order to create scarcity and drive up prices. Ultimately, the practice of creating artificial scarcity can be harmful to both producers and consumers of animal products. Producers may be forced to sell their products at lower prices or may be unable to sell them at all, while consumers may be forced to pay higher prices for essential products.
Pergunta 17 Relatório
Which of the following forage crops best controls soil erosion in a pasture?
Detalhes da Resposta
Centrosema pubescens is the forage crop that best controls soil erosion in a pasture. Centrosema pubescens is a leguminous forage crop that has a deep-rooted system that helps to stabilize soil and prevent erosion. It also has a spreading growth habit that helps to form a dense ground cover, which reduces runoff and protects the soil from erosion. In addition, Centrosema pubescens is known for its ability to fix nitrogen, which helps to improve soil fertility and reduce the need for chemical fertilizers. Therefore, Centrosema pubescens is an excellent choice for farmers looking to control soil erosion in their pastures.
Pergunta 18 Relatório
The secondary host of the organism is_______
Detalhes da Resposta
The secondary host of an organism refers to the host in which a parasite undergoes a necessary developmental stage before it can infect its final host. For example, some parasites may require a secondary host such as a water snail, in addition to their primary host, such as a human, in order to complete their life cycle. The parasite may enter the secondary host as a larva or immature form, and then develop into a form that can infect the final host once it is ingested. In this case, the answer would be Water Snail as it serves as the secondary host for certain parasites.
Pergunta 19 Relatório
The keeping of honey bees is known as_________
Detalhes da Resposta
The correct answer is "Apiculture." Apiculture is the practice of keeping honey bees in hives for their honey, beeswax, and other products. Honey bees are important pollinators and play a crucial role in agriculture by helping to fertilize crops and ensure their growth and productivity. The practice of apiculture dates back thousands of years, and has been an important part of human history and culture. Today, beekeeping is practiced around the world, and is an important source of income and livelihood for many people. An apiary is a location where beehives are kept and managed for the purpose of apiculture. Aviculture is the practice of keeping and breeding birds, while silviculture is the management of forests and forested lands. These practices are related to agriculture, but are not the same as apiculture.
Pergunta 21 Relatório
Which of the following plants is a source of coagulant in local cheese making?
Detalhes da Resposta
Calotropis procera is a plant that is commonly used as a source of coagulant in local cheese making. The plant produces a latex that contains enzymes that can coagulate milk, which is an important step in the cheese making process. The enzymes in the latex of Calotropis procera are similar to those found in animal rennet, which is traditionally used for cheese making. However, the use of Calotropis procera as a coagulant is preferred by many cheese makers because it is cheaper and more readily available than animal rennet. Therefore, the answer to the question is Calotropis procera.
Pergunta 22 Relatório
The absence of pests and diseases in a pasture ensures_______
Detalhes da Resposta
The absence of pests and diseases in a pasture ensures increased productivity. Pests and diseases can have a significant impact on the health and productivity of pasture lands. Pests can damage or destroy crops and forage plants, while diseases can spread rapidly among plants and animals, reducing the overall health and productivity of the pasture. By maintaining a pasture free of pests and diseases, farmers can help to ensure that their crops and forage plants are healthy and able to grow and produce at their maximum potential. This, in turn, can result in increased productivity and higher yields, which can be important for the livelihoods and economic well-being of farmers and their communities. Overall, maintaining a pest and disease-free pasture is an important aspect of sustainable and productive agriculture, and is key to ensuring the health and productivity of the land and the animals that rely on it.
Pergunta 23 Relatório
A horse used for racing is an example of farm animal raise for__________
Detalhes da Resposta
A horse used for racing is an example of a farm animal raised for recreational activities. Horses are often raised specifically for the sport of horse racing, which is a popular form of entertainment and recreation in many parts of the world. These horses are trained to run at high speeds and compete against other horses in races. In order to become a successful racehorse, a horse must be physically fit, fast, and have the ability to perform well under pressure. This requires a combination of proper nutrition, training, and management, as well as a certain amount of natural talent and ability. Overall, horses used for racing are raised for the purpose of providing entertainment and recreation for people, rather than for food or other practical uses.
Pergunta 24 Relatório
The secretion stored in the part labelled II is used for_______
Detalhes da Resposta
The secretion stored in the part labelled II is used for emulsification of fat. The part labelled II refers to the gallbladder, which stores and releases bile into the small intestine. Bile is a greenish-yellow fluid that is produced by the liver and stored in the gallbladder. It contains bile salts that act as emulsifiers, breaking down fat molecules into smaller droplets that can be more easily digested and absorbed by the body. This emulsification process is an essential step in the digestion of fats, as it increases the surface area of the fat droplets, allowing digestive enzymes to work more efficiently. Therefore, the secretion stored in the part labelled II (gallbladder) is mainly used for the emulsification of fat during digestion.
Pergunta 25 Relatório
Mad cow disease can easily spread on a farm through___________
Detalhes da Resposta
Mad cow disease, also known as bovine spongiform encephalopathy (BSE), can easily spread on a farm through "overcrowding". Overcrowding occurs when too many animals are kept in a confined space, which can lead to increased stress, aggression, and the spread of infectious diseases. In the case of BSE, the disease is caused by an abnormal protein, called a prion, that can be transmitted through the consumption of contaminated feed or contact with infected nervous tissue. Overcrowding can increase the likelihood of contact between animals and the spread of BSE through contaminated feed or by direct contact with infected animals. Therefore, it is important for farmers to maintain appropriate stocking densities and to implement biosecurity measures to prevent the spread of BSE and other infectious diseases.
Pergunta 26 Relatório
In order to prevent overgrazing of pasture, a farmer should adopt___________
Detalhes da Resposta
To prevent overgrazing of pasture, a farmer should adopt controlled stocking. Controlled stocking is a management strategy where the number of animals grazing on a particular pasture is regulated to prevent excessive grazing that can lead to degradation of the pasture. This is important because overgrazing can result in the loss of plant cover, which can lead to soil erosion and the degradation of soil quality. By limiting the number of animals grazing on a particular pasture, the farmer can allow the vegetation to recover and regrow, ensuring the sustainability of the pasture for future use. Therefore, the answer to the question is controlled stocking.
Pergunta 28 Relatório
The hormone responsible for broodiness in hen is______
Detalhes da Resposta
The hormone responsible for broodiness in hens is prolactin. Prolactin is a hormone produced by the pituitary gland that stimulates the development of the mammary gland and milk production in mammals. In hens, prolactin stimulates the instinct to sit on eggs and incubate them, which is known as broodiness. When a hen is broody, she will stop laying eggs and become very protective of her nest, making it difficult for farmers to collect eggs.
Pergunta 29 Relatório
Which of the following diets has the highest crude protein content?
Detalhes da Resposta
Pergunta 33 Relatório
Which of the following organisms is an ectoparasite?
Detalhes da Resposta
An ectoparasite is a type of parasite that lives on the outside of the host's body, feeding on blood or other bodily fluids. Among the options provided, the flea is the only organism that fits this description and is an ectoparasite. Fleas are tiny insects that live on the skin of animals, such as dogs and cats, and feed on their blood. They can cause itching, irritation, and even transmit diseases to their hosts. In contrast, the liver fluke and roundworm are internal parasites that live inside the body of their host, while the cattle egret is a bird that does not feed on the bodily fluids of other animals and is not a parasite. Therefore, the answer to the question is Flea.
Pergunta 34 Relatório
A farmer who has a supply order from a pharmaceutical company is keeping farm animals mainly for_________
Detalhes da Resposta
The correct answer is "raw materials." When a farmer receives a supply order from a pharmaceutical company, it is likely that they are keeping farm animals for the purpose of providing raw materials for the pharmaceutical industry. Many pharmaceuticals are derived from animal products, such as insulin from pigs or cows, and antibodies from rabbits or goats. By keeping farm animals, the farmer is able to provide a reliable and sustainable source of these raw materials. Farm animals can also provide a variety of other raw materials, including meat, milk, eggs, and leather. These materials are used in a wide range of industries, from food production to fashion. While farm animals may provide some degree of security by providing a source of food and income, and may also have social or recreational value for some people, the primary purpose of keeping them in this context is to provide raw materials for the pharmaceutical industry.
Pergunta 35 Relatório
Which of the following characteristics are associated with protein concentrates?
I. High in energy
II Low in fibre
III. Highly digestible
Detalhes da Resposta
Pergunta 36 Relatório
In West Africa, farm animals are mostly kept for___________
Detalhes da Resposta
In West Africa, farm animals are mostly kept for food and as a source of income. Livestock such as cows, sheep, goats, and chickens are important sources of protein and other nutrients for many people in West Africa. They are also a source of income, as they can be sold for meat or dairy products, or used for plowing fields and transportation. In addition to their practical uses, farm animals also have cultural and social significance in many West African communities, and may be kept for reasons such as prestige or as a symbol of wealth. Overall, farm animals play a vital role in the daily lives and economies of many people in West Africa, and are kept for a combination of practical, cultural, and economic reasons.
Pergunta 37 Relatório
In poultry management, which of the following equipment is recommended for use in place of the equipment illustrated?
Detalhes da Resposta
In poultry management, an electric bulb is recommended for use in place of the equipment illustrated. The equipment illustrated appears to be a torch or fire-based light source, which can be dangerous in a poultry environment due to the potential for fire or injury. An electric bulb, on the other hand, provides a safe and reliable source of light that can be used to illuminate the poultry house. In addition to being safer, electric lighting can also be more energy-efficient and cost-effective than traditional fire-based lighting methods. It is also easier to control and adjust the brightness and duration of electric lighting, which can be important in creating the right environment for the poultry. For these reasons, it is recommended to use an electric bulb in place of a torch or other fire-based light source in poultry management.
Pergunta 38 Relatório
One disadvantage of selection is that_________
Detalhes da Resposta
One disadvantage of selection is that some good traits may be eliminated. Selection is the process of choosing individuals with desirable traits for breeding purposes. While this process can result in improvement of the population over time, it can also have the unintended consequence of eliminating some good traits that were not the focus of the selection process. For example, if a farmer is only selecting for larger size in their livestock, they may unintentionally eliminate traits such as hardiness or disease resistance that are also important for the health and survival of the animals. This is why it is important to consider multiple traits when selecting individuals for breeding, and to be mindful of the potential trade-offs between different traits. By considering a variety of factors, farmers can help to ensure that their populations continue to be healthy and productive over time.
Pergunta 39 Relatório
If a group of animals is picked from a herd based on their fertility rate, growth rate and size, the selection is said_______
Detalhes da Resposta
Pergunta 41 Relatório
a) List three equipment used on a dairy farm.
b) Outline the steps involved in the pasteurization of milk.
c) State four roles of each of the following agents in the marketing of animal products:
(i) wholesaler;
(ii) retailer.
d) State three advantages of each of the following agents involved in the marketing of animal products:
(i) marketing boards;
(ii) co-operative societies.
a)
Three equipment used on a dairy farm are milking machines, bulk milk tanks, and pasteurizers.
b) The steps involved in pasteurization of milk are:
- Raw milk is heated to a temperature of 63°C for 30 minutes, or 72°C for 15 seconds.
- The milk is then rapidly cooled to below 10°C.
- The pasteurized milk is stored in a sterilized container and is ready for distribution.
c) Four roles of each of the following agents in the marketing of animal products are:
(i) Wholesaler: A wholesaler buys animal products in large quantities from producers and sells them in smaller quantities to retailers. Their roles include buying in bulk, warehousing and storing products, and providing logistics and transportation services.
(ii) Retailer: A retailer buys animal products from wholesalers and sells them to consumers. Their roles include marketing and promoting products, providing customer service, and setting prices.
d) Three advantages of each of the following agents involved in the marketing of animal products are:
(i) Marketing boards:
- They provide a stable market for animal products by controlling supply and demand.
- They regulate prices to ensure fair returns for producers and stable prices for consumers.
- They promote and advertise animal products, increasing demand and sales.
(ii) Co-operative societies:
- They provide a platform for small-scale producers to pool their resources and market their products together, increasing their bargaining power.
- They provide access to shared resources, such as equipment and storage facilities, reducing production costs.
- They provide training and support to members, improving their skills and knowledge in animal husbandry and marketing.
Detalhes da Resposta
a)
Three equipment used on a dairy farm are milking machines, bulk milk tanks, and pasteurizers.
b) The steps involved in pasteurization of milk are:
- Raw milk is heated to a temperature of 63°C for 30 minutes, or 72°C for 15 seconds.
- The milk is then rapidly cooled to below 10°C.
- The pasteurized milk is stored in a sterilized container and is ready for distribution.
c) Four roles of each of the following agents in the marketing of animal products are:
(i) Wholesaler: A wholesaler buys animal products in large quantities from producers and sells them in smaller quantities to retailers. Their roles include buying in bulk, warehousing and storing products, and providing logistics and transportation services.
(ii) Retailer: A retailer buys animal products from wholesalers and sells them to consumers. Their roles include marketing and promoting products, providing customer service, and setting prices.
d) Three advantages of each of the following agents involved in the marketing of animal products are:
(i) Marketing boards:
- They provide a stable market for animal products by controlling supply and demand.
- They regulate prices to ensure fair returns for producers and stable prices for consumers.
- They promote and advertise animal products, increasing demand and sales.
(ii) Co-operative societies:
- They provide a platform for small-scale producers to pool their resources and market their products together, increasing their bargaining power.
- They provide access to shared resources, such as equipment and storage facilities, reducing production costs.
- They provide training and support to members, improving their skills and knowledge in animal husbandry and marketing.
Pergunta 42 Relatório
(a) Mention FIVE advantages and THREE Disadvantages of castration in Livestock production
(b) (i) Draw and label FIVE parts of the digestive system of a domestic fowl
(ii) State ONE function of each of the parts labelled in (b) (i)
a) Advantages of castration in livestock production include: 1. Improved meat quality: Castration can lead to meat with better taste, texture, and tenderness, which can increase the market value of the animal. 2. Reduced aggression: Castrated animals are often less aggressive and easier to handle, which can improve worker safety and animal welfare. 3. Better feed efficiency: Castrated animals may require less feed to maintain their weight, which can result in lower feed costs for the farmer. 4. Reduced risk of reproductive diseases: Castration can prevent the development of reproductive diseases in male animals, which can reduce the need for veterinary care and increase the lifespan of the animal. 5. Improved herd management: Castration can help farmers better manage their herds by controlling breeding and preventing unwanted pregnancies. Disadvantages of castration in livestock production include: 1. Risk of surgical complications: Castration is a surgical procedure that carries a risk of complications, including infection, bleeding, and even death. 2. Reduced growth rate: Castration can lead to slower growth rates in some animals, which can delay the time to market and reduce profitability. 3. Behavioral changes: Castration can lead to changes in behavior, such as reduced aggressiveness and territoriality, which may affect the animal's ability to defend itself or interact with its environment. b) (i) Parts of the digestive system of a domestic fowl: 1. Beak: The beak is a hard, keratinized structure at the front of the bird's head that is used for pecking, preening, and grasping food. 2. Crop: The crop is an expandable pouch in the bird's esophagus that stores and moistens food before it enters the stomach. 3. Proventriculus: The proventriculus is the glandular part of the bird's stomach that secretes digestive enzymes to break down food. 4. Gizzard: The gizzard is a muscular organ in the bird's digestive system that grinds food into smaller particles with the help of small stones or grit. 5. Cloaca: The cloaca is a common opening at the end of the bird's digestive, urinary, and reproductive systems that is used for excretion and mating. (ii) Functions of the parts labelled in (i): 1. Beak: The beak is used to grasp and manipulate food, as well as for preening and other behaviors. 2. Crop: The crop stores and moistens food before it enters the stomach, which allows the bird to eat quickly and digest food more efficiently. 3. Proventriculus: The proventriculus secretes digestive enzymes that break down food into smaller particles and prepare it for further digestion in the gizzard. 4. Gizzard: The gizzard grinds food into smaller particles with the help of small stones or grit, which allows the bird to extract more nutrients from its food. 5. Cloaca: The cloaca is a common opening for excretion and mating, which allows the bird to efficiently eliminate waste and reproduce.
Detalhes da Resposta
a) Advantages of castration in livestock production include: 1. Improved meat quality: Castration can lead to meat with better taste, texture, and tenderness, which can increase the market value of the animal. 2. Reduced aggression: Castrated animals are often less aggressive and easier to handle, which can improve worker safety and animal welfare. 3. Better feed efficiency: Castrated animals may require less feed to maintain their weight, which can result in lower feed costs for the farmer. 4. Reduced risk of reproductive diseases: Castration can prevent the development of reproductive diseases in male animals, which can reduce the need for veterinary care and increase the lifespan of the animal. 5. Improved herd management: Castration can help farmers better manage their herds by controlling breeding and preventing unwanted pregnancies. Disadvantages of castration in livestock production include: 1. Risk of surgical complications: Castration is a surgical procedure that carries a risk of complications, including infection, bleeding, and even death. 2. Reduced growth rate: Castration can lead to slower growth rates in some animals, which can delay the time to market and reduce profitability. 3. Behavioral changes: Castration can lead to changes in behavior, such as reduced aggressiveness and territoriality, which may affect the animal's ability to defend itself or interact with its environment. b) (i) Parts of the digestive system of a domestic fowl: 1. Beak: The beak is a hard, keratinized structure at the front of the bird's head that is used for pecking, preening, and grasping food. 2. Crop: The crop is an expandable pouch in the bird's esophagus that stores and moistens food before it enters the stomach. 3. Proventriculus: The proventriculus is the glandular part of the bird's stomach that secretes digestive enzymes to break down food. 4. Gizzard: The gizzard is a muscular organ in the bird's digestive system that grinds food into smaller particles with the help of small stones or grit. 5. Cloaca: The cloaca is a common opening at the end of the bird's digestive, urinary, and reproductive systems that is used for excretion and mating. (ii) Functions of the parts labelled in (i): 1. Beak: The beak is used to grasp and manipulate food, as well as for preening and other behaviors. 2. Crop: The crop stores and moistens food before it enters the stomach, which allows the bird to eat quickly and digest food more efficiently. 3. Proventriculus: The proventriculus secretes digestive enzymes that break down food into smaller particles and prepare it for further digestion in the gizzard. 4. Gizzard: The gizzard grinds food into smaller particles with the help of small stones or grit, which allows the bird to extract more nutrients from its food. 5. Cloaca: The cloaca is a common opening for excretion and mating, which allows the bird to efficiently eliminate waste and reproduce.
Pergunta 43 Relatório
a) Define the term artificial pasture as used in animal production.
b) State six advantages of grass-legume mixtures in a pasture.
c) (i) Mention three management systems used in keeping small ruminants.
(ii) State three characteristics of each of the management systems mentioned in (c)(i).
a) Artificial pasture: Artificial pasture refers to an area of land that has been specifically prepared for the production of forage crops for grazing animals. It is a managed system that involves the cultivation of specific grasses and legumes that are well-suited for the nutritional needs of the animals being raised.
b) Advantages of grass-legume mixtures in a pasture:
- Improved forage quality: Legumes are high in protein and help to improve the nutritional value of the forage for grazing animals.
- Nitrogen fixation: Legumes are able to fix nitrogen from the atmosphere and make it available for the surrounding plants, which can help to reduce fertilizer costs.
- Increased yield: Grass-legume mixtures can produce higher yields of forage than pure grass stands.
- Improved soil health: Legumes can help to improve soil fertility and structure, which can lead to better crop growth and yields over time.
- Longer grazing season: The mix of grasses and legumes in a pasture can provide a longer grazing season, as some species will continue to grow and produce forage even as others start to decline.
- Reduced risk of bloat: The inclusion of grasses in the mixture can help to reduce the risk of bloat in ruminant animals that are grazing on legumes.
c) Management systems used in keeping small ruminants:
(i) Three management systems used in keeping small ruminants:
- Intensive management: This system involves keeping the animals in a confined space and providing them with a controlled diet and environment.
- Semi-intensive management: This system involves allowing the animals to graze on pasture during the day and providing them with supplementary feed and shelter at night.
- Extensive management: This system involves allowing the animals to graze on open pasture for most of the day and night, with minimal human intervention.
(ii) Three characteristics of each of these management systems:
- Intensive management: In this system, the animals are kept in a small area and have limited access to pasture. They are usually fed a controlled diet of hay, silage, or other feed, and may be housed in a barn or other enclosed structure. This system requires a high level of management and can be expensive to set up and maintain.
- Semi-intensive management: In this system, the animals are allowed to graze on pasture during the day, but are provided with supplementary feed and shelter at night. This system can be less expensive than intensive management, but still requires regular monitoring and management.
- Extensive management: In this system, the animals are allowed to graze on open pasture for most of the day and night, with minimal human intervention. This system requires the least amount of management, but can be challenging in areas with limited pasture resources or harsh weather conditions.
Overall, the choice of management system will depend on factors such as the size of the operation, available resources, and the goals of the producer. Each system has its own advantages and disadvantages, and it is important to choose the one that is most appropriate for the specific situation.
Detalhes da Resposta
a) Artificial pasture: Artificial pasture refers to an area of land that has been specifically prepared for the production of forage crops for grazing animals. It is a managed system that involves the cultivation of specific grasses and legumes that are well-suited for the nutritional needs of the animals being raised.
b) Advantages of grass-legume mixtures in a pasture:
- Improved forage quality: Legumes are high in protein and help to improve the nutritional value of the forage for grazing animals.
- Nitrogen fixation: Legumes are able to fix nitrogen from the atmosphere and make it available for the surrounding plants, which can help to reduce fertilizer costs.
- Increased yield: Grass-legume mixtures can produce higher yields of forage than pure grass stands.
- Improved soil health: Legumes can help to improve soil fertility and structure, which can lead to better crop growth and yields over time.
- Longer grazing season: The mix of grasses and legumes in a pasture can provide a longer grazing season, as some species will continue to grow and produce forage even as others start to decline.
- Reduced risk of bloat: The inclusion of grasses in the mixture can help to reduce the risk of bloat in ruminant animals that are grazing on legumes.
c) Management systems used in keeping small ruminants:
(i) Three management systems used in keeping small ruminants:
- Intensive management: This system involves keeping the animals in a confined space and providing them with a controlled diet and environment.
- Semi-intensive management: This system involves allowing the animals to graze on pasture during the day and providing them with supplementary feed and shelter at night.
- Extensive management: This system involves allowing the animals to graze on open pasture for most of the day and night, with minimal human intervention.
(ii) Three characteristics of each of these management systems:
- Intensive management: In this system, the animals are kept in a small area and have limited access to pasture. They are usually fed a controlled diet of hay, silage, or other feed, and may be housed in a barn or other enclosed structure. This system requires a high level of management and can be expensive to set up and maintain.
- Semi-intensive management: In this system, the animals are allowed to graze on pasture during the day, but are provided with supplementary feed and shelter at night. This system can be less expensive than intensive management, but still requires regular monitoring and management.
- Extensive management: In this system, the animals are allowed to graze on open pasture for most of the day and night, with minimal human intervention. This system requires the least amount of management, but can be challenging in areas with limited pasture resources or harsh weather conditions.
Overall, the choice of management system will depend on factors such as the size of the operation, available resources, and the goals of the producer. Each system has its own advantages and disadvantages, and it is important to choose the one that is most appropriate for the specific situation.
Pergunta 44 Relatório
TEST OF PRACTICAL KNOWLEDGE QUESTION
(a) List three stages in the life cycle of specimen G (Liver Fluke)
(b) State four effects of specimen G on the farm animals.
(c) Mention three ways of controlling specimen G on farm animals
(d) Draw and label specimen H (Tape worm)
a) The three stages in the life cycle of Liver Fluke (specimen G) are:
- Egg stage: The adult Liver Fluke lays eggs which are then passed out with the animal's feces.
- Miracidium stage: The eggs hatch into a free-swimming larval form called the miracidium, which then infects a snail.
- Cercaria stage: The miracidium develops into a cercaria, which is then released from the snail and can infect a farm animal by penetrating its skin.
b) Four effects of Liver Fluke (specimen G) on farm animals are:
- Reduced productivity: Liver Fluke infections can cause weight loss, reduced milk yield, and reduced fertility in farm animals.
- Liver damage: As the name suggests, Liver Fluke infections can cause significant damage to the liver, including cirrhosis, fibrosis, and inflammation.
- Anemia: In severe cases, Liver Fluke infections can cause anemia, which is characterized by pale mucous membranes and lethargy.
- Death: In extreme cases, Liver Fluke infections can be fatal to farm animals.
c) Three ways of controlling Liver Fluke (specimen G) on farm animals are:
- Pasture management: Keeping pastures well-drained and avoiding over-grazing can help reduce the snail populations that serve as intermediate hosts for Liver Fluke.
- Chemical treatment: Various anthelmintic drugs can be used to treat and prevent Liver Fluke infections in farm animals.
- Vaccination: There are also vaccines available that can help protect farm animals against Liver Fluke infections.
d) S
Detalhes da Resposta
a) The three stages in the life cycle of Liver Fluke (specimen G) are:
- Egg stage: The adult Liver Fluke lays eggs which are then passed out with the animal's feces.
- Miracidium stage: The eggs hatch into a free-swimming larval form called the miracidium, which then infects a snail.
- Cercaria stage: The miracidium develops into a cercaria, which is then released from the snail and can infect a farm animal by penetrating its skin.
b) Four effects of Liver Fluke (specimen G) on farm animals are:
- Reduced productivity: Liver Fluke infections can cause weight loss, reduced milk yield, and reduced fertility in farm animals.
- Liver damage: As the name suggests, Liver Fluke infections can cause significant damage to the liver, including cirrhosis, fibrosis, and inflammation.
- Anemia: In severe cases, Liver Fluke infections can cause anemia, which is characterized by pale mucous membranes and lethargy.
- Death: In extreme cases, Liver Fluke infections can be fatal to farm animals.
c) Three ways of controlling Liver Fluke (specimen G) on farm animals are:
- Pasture management: Keeping pastures well-drained and avoiding over-grazing can help reduce the snail populations that serve as intermediate hosts for Liver Fluke.
- Chemical treatment: Various anthelmintic drugs can be used to treat and prevent Liver Fluke infections in farm animals.
- Vaccination: There are also vaccines available that can help protect farm animals against Liver Fluke infections.
d) S
Pergunta 45 Relatório
a) Mention five characteristics considered during selection of livestock for breeding.
b) State five characteristics of a Zebu cattle.
c) State five functions of water in farm animals.
d) List five nutritional disorders in farm animals
a) During selection of livestock for breeding, five characteristics that are typically considered include: - Productivity: This refers to the animal's ability to produce offspring, milk, meat, eggs, or other products that are desirable for human consumption or use. - Conformation: This refers to the animal's physical shape and structure, including traits such as size, shape, and musculature. - Health: This refers to the animal's overall health and resistance to diseases and other health problems. - Temperament: This refers to the animal's behavior and disposition, including traits such as docility, aggression, or skittishness. - Adaptability: This refers to the animal's ability to adapt to different environments and management practices, such as changes in feed, climate, or housing. b) Five characteristics of Zebu cattle include: - Humped back: Zebu cattle have a distinctive hump of fat and muscle on their shoulders. - Heat tolerance: Zebu cattle are well-adapted to hot and humid climates, thanks to their sweat glands and ability to regulate body temperature. - Disease resistance: Zebu cattle are generally more resistant to diseases and parasites than other breeds of cattle. - Drought tolerance: Zebu cattle are able to survive in areas with limited water and forage resources. - Longevity: Zebu cattle have a longer lifespan than many other breeds of cattle, often living well into their teens or twenties. c) Five functions of water in farm animals include: - Temperature regulation: Water helps animals to regulate their body temperature, especially in hot or humid conditions. - Digestion: Water is essential for the digestion and absorption of nutrients from feed. - Waste elimination: Water helps to flush waste products out of the animal's body through urine and feces. - Milk production: Water is needed for the production of milk in lactating animals. - Hydration: Water is essential for maintaining proper hydration levels in the animal's body. d) Five nutritional disorders in farm animals include: - Vitamin deficiencies: Lack of sufficient vitamins in the animal's diet can lead to a range of health problems, including poor growth, weakened immune system, and reproductive issues. - Mineral deficiencies: Similar to vitamin deficiencies, lack of minerals such as calcium, phosphorus, or magnesium can lead to health problems such as weakened bones or poor fertility. - Protein deficiencies: Inadequate protein intake can lead to poor growth, reduced milk production, and other health problems. - Energy deficiencies: Lack of sufficient energy in the animal's diet can lead to weight loss, poor growth, and reduced milk production. - Acidosis: Acidosis is a condition where the pH of the animal's rumen becomes too low, leading to digestive problems and other health issues. This can be caused by a diet that is too high in fermentable carbohydrates such as grain.
Detalhes da Resposta
a) During selection of livestock for breeding, five characteristics that are typically considered include: - Productivity: This refers to the animal's ability to produce offspring, milk, meat, eggs, or other products that are desirable for human consumption or use. - Conformation: This refers to the animal's physical shape and structure, including traits such as size, shape, and musculature. - Health: This refers to the animal's overall health and resistance to diseases and other health problems. - Temperament: This refers to the animal's behavior and disposition, including traits such as docility, aggression, or skittishness. - Adaptability: This refers to the animal's ability to adapt to different environments and management practices, such as changes in feed, climate, or housing. b) Five characteristics of Zebu cattle include: - Humped back: Zebu cattle have a distinctive hump of fat and muscle on their shoulders. - Heat tolerance: Zebu cattle are well-adapted to hot and humid climates, thanks to their sweat glands and ability to regulate body temperature. - Disease resistance: Zebu cattle are generally more resistant to diseases and parasites than other breeds of cattle. - Drought tolerance: Zebu cattle are able to survive in areas with limited water and forage resources. - Longevity: Zebu cattle have a longer lifespan than many other breeds of cattle, often living well into their teens or twenties. c) Five functions of water in farm animals include: - Temperature regulation: Water helps animals to regulate their body temperature, especially in hot or humid conditions. - Digestion: Water is essential for the digestion and absorption of nutrients from feed. - Waste elimination: Water helps to flush waste products out of the animal's body through urine and feces. - Milk production: Water is needed for the production of milk in lactating animals. - Hydration: Water is essential for maintaining proper hydration levels in the animal's body. d) Five nutritional disorders in farm animals include: - Vitamin deficiencies: Lack of sufficient vitamins in the animal's diet can lead to a range of health problems, including poor growth, weakened immune system, and reproductive issues. - Mineral deficiencies: Similar to vitamin deficiencies, lack of minerals such as calcium, phosphorus, or magnesium can lead to health problems such as weakened bones or poor fertility. - Protein deficiencies: Inadequate protein intake can lead to poor growth, reduced milk production, and other health problems. - Energy deficiencies: Lack of sufficient energy in the animal's diet can lead to weight loss, poor growth, and reduced milk production. - Acidosis: Acidosis is a condition where the pH of the animal's rumen becomes too low, leading to digestive problems and other health issues. This can be caused by a diet that is too high in fermentable carbohydrates such as grain.
Pergunta 46 Relatório
a) (i) Describe the life cycle of louse.
(ii) State three effects of louse on its host.
(iii) State three ways in which louse could be controlled.
(iv) Name three farm animals that could be infested by louse.
b) Discuss coccidiosis in farm animals under the following headings:
(i) two animals mostly affected;
(ii) causal agent;
(iii) two symptoms;
(iv) two control measures
None
Detalhes da Resposta
None
