(a) State eight functions of water in livestock management (b) List eight essential mineral elements required in animal nutrition (c) State four functions o...

Assessment: WAEC SSCE - Agricultural Science - 1993 (Essay) Subject: Agricultural Science

Question 1 Report

(a) State eight functions of water in livestock management (b) List eight essential mineral elements required in animal nutrition (c) State four functions of the mineral elements in the body of animals. 

Answer Details

a) Eight functions of water in livestock management include:


  1. Regulating body temperature: Water helps regulate body temperature by enabling sweating and panting, which dissipates heat from the body.
  2. Transporting nutrients: Water is a key component of blood and other bodily fluids, which transport nutrients and oxygen to cells throughout the body.
  3. Aiding digestion: Water is essential for digestion and helps move food through the digestive tract.
  4. Lubricating joints: Water is a component of synovial fluid, which lubricates joints and reduces friction.
  5. Flushing waste products: Water helps remove waste products, such as urine and feces, from the body.
  6. Maintaining hydration: Water is essential for maintaining proper hydration levels in animals, which is necessary for overall health and wellbeing.
  7. Supporting milk production: Lactating animals require more water to support milk production.
  8. Supporting growth: Water is necessary for cellular growth and repair, which is especially important for young animals.

b) Eight essential mineral elements required in animal nutrition are:


  1. Calcium
  2. Phosphorus
  3. Magnesium
  4. Sodium
  5. Chloride
  6. Potassium
  7. Iron
  8. Zinc

c) Four functions of mineral elements in the body of animals are:


  1. Structural support: Minerals such as calcium and phosphorus are important for bone formation and maintenance.
  2. Enzyme function: Many minerals, such as iron and zinc, are essential components of enzymes, which catalyze biochemical reactions in the body.
  3. Nerve and muscle function: Minerals such as sodium and potassium are important for nerve and muscle function, including transmitting nerve signals and contracting muscles.
  4. Fluid balance: Minerals such as sodium and chloride help maintain proper fluid balance in the body, which is necessary for cellular function and overall health.

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