(a) Functions of water in livestock management are as follows: (i) Water is used for drinking purpose. (ii) It is used for washing or cleaning animals. (iii) It is used for milk and meat processing. (iv) Water is essential for maintenance of body temperature. (v) It is important for metabolism or digestion. (vi) It is used in dipping or against ectoparasites and endoparasites. (vii) It is used for cleaning the floors or pens of drenching animals for or animals. (viii) It is also used for irrigation of pasture.
(b) Eight essential mineral elements required in animal nutrition are: (i) calcium (ii) iodine (iii) Phosphorus (iv) Chlorine (v) iron (vi) magnesium (vii) nitrogen (viii) potassium

(c) Four function. s of the mineral elements in the body of animals are: (i) It is for the formation and development of bones and teeth. (ii) Some minerals helps to form haemoglobin. (iii) Some are useful in the formation of hormones. (iv) Some are useful in the regulation of blood clotting.