Theory question 105
Animal Anatomy and Physiology(a) Mention two functions each of the following parts of the digestive system of poultry: (i) crop; (ii) gizzard; (iii) small intestine; (iv) large intestine.
(b)(i) Define the term ration as used in animal nutrition. (ii) Give four characteristics of roughages consumed by ruminants.
(c) An eco-friendly company is considering using fibre crops to replace plastics as packaging materials. Give four other uses of fibre crops.
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(a)(i) Crop: stores food temporarily; softens/moistens food.
(ii) Gizzard: grinds food with grit; mixes food with enzymes from the proventriculus.
(iii) Small intestine: completes digestion of food; absorbs digested nutrients.
(iv) Large intestine: absorbs water; carries undigested waste to the cloaca.
(b)(i) A ration is the measured amount of feed given to an animal in 24 hours to meet its needs.
(ii) Any four: high crude fibre (over 18%); bulky; low in digestible nutrients and energy; low protein (except legumes); cheap and readily available; slowly digested; e.g. hay, straw, silage, pasture.
(c) Any four: textiles and clothing; ropes and twines; sacks and bags; mats and carpets; paper; fishing nets; medical cotton wool; mattress stuffing; seed oil and cake (cotton).
Two functions per part in (a).