WAEC Agricultural Science 1997 Theory question 107

Theory question 107

Animal Anatomy and Physiology

Differentiate between the digestive systems of the sheep and poultry. Illustrate your answers with clearly labelled diagrams.

Show the model answer
Model answer

Sheep (ruminant): has teeth (no upper incisors, dental pad); four-chambered stomach – rumen, reticulum, omasum, abomasum; chews the cud; microbial digestion of cellulose in rumen; long small intestine; one caecum; rectum and anus
Poultry: no teeth, has a beak; crop for storing food; proventriculus (glandular stomach); gizzard for grinding with grit; two caeca; short intestine; cloaca and vent; no rumination
Labelled diagrams of each tract

Explanation

Set the differences side by side in a table with both diagrams.