(a) Explain the following terms as used in animal production: Malnutrition Weaning Heat period Candling (b)Distinguish between maintenance ration and produc...

Answer Details

(a)
1. Malnutrition - Malnutrition in animal production refers to the inadequate or imbalanced intake of essential nutrients required for proper growth, development, and overall health of an animal.
2. Weaning - Weaning is the process of gradually separating young animals (such as pigs, calves, or lambs) from their mothers and transitioning them to solid food. This usually occurs when the animal is around 4-8 weeks old.
3. Heat period - Heat period, also known as estrus, is the time when a female animal is receptive to mating and is able to get pregnant. In most mammals, this occurs regularly and is characterized by behavioral, physiological, and hormonal changes.
4. Candling - Candling is a method used in poultry production to assess the quality and development of eggs. A bright light is shone through the egg, and the contents can be observed to determine if the egg is fertilized, infertile, or if the embryo has died.

(b)
Maintenance ration - Maintenance ration is the minimum amount of feed an animal requires to maintain its body weight, health, and functions, but not necessarily to support growth or production.
Production ration - Production ration, on the other hand, is a balanced diet that provides adequate amounts of essential nutrients to support growth, reproduction, lactation, and other productive functions in animals.

(c)
Three effects of malnutrition on farm animals include:
1. Reduced growth and development
2. Decreased immunity and increased susceptibility to diseases
3. Reduced reproductive performance and fertility

(d)
Five effects of deforestation include:
1. Loss of habitat and biodiversity - Deforestation results in the destruction of natural habitats for countless species, leading to declines in biodiversity and increased extinction risk.
2. Climate change - Trees absorb carbon dioxide from the atmosphere, and deforestation releases this carbon back into the air, contributing to global warming and climate change.
3. Soil erosion and degradation - Trees help to stabilize the soil, protect against erosion, and retain moisture. When forests are cleared, this protective cover is lost, leading to increased soil erosion and degradation.
4. Decreased water quality and availability - Forests play an important role in regulating water cycles, and deforestation can disrupt these cycles, leading to decreased water quality and availability.
5. Displacement of indigenous communities - Many indigenous communities rely on forests for their livelihoods, and deforestation can lead to their displacement and loss of traditional ways of life.