(a) State the main food nutrient obtainable from specimen Q (BONE MEAL) and two main food nutrients obtainable from Specimen S(CATFISH) (b) State three func...

(a) Main food nutrients

• Specimen Q (bone meal): the main nutrient is minerals (mainly calcium and phosphorus).
• Specimen S (catfish): the two main nutrients are protein and fat (oil).

(b) Three functions of each of the two nutrients from Specimen S

Protein

1. For growth and building of body tissues.
2. For repair of worn-out tissues.
3. For forming enzymes, hormones and antibodies, and for production (milk, eggs, meat).

Fat (oil)

1. It is a concentrated source of energy and heat.
2. It stores energy in the body and provides essential fatty acids.
3. It carries the fat-soluble vitamins and insulates and protects body organs.

(c) Three farm animals from which bone meal (Q) could be obtained

1. Cattle
2. Goat
3. Sheep

(d) Three disadvantages of using blood meal (P) in compounding livestock feed

1. It is unpalatable, so animals may reject feed containing much of it.
2. It has a poor amino-acid balance (deficient in some essential amino acids).
3. It spoils easily and may harbour or transmit disease-causing organisms.