SS1 First Term Animal Husbandry Lesson Note – Classification of Animals

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 WEEK 3                     CLASSIFICATION OF ANIMALS

TOPIC:  CLASSIFICATION OF ANIMALS

Animals are classified according to diverse purposes like habitat, relationship with man, mode of feeding, to mention but a few.

Animal classified based on habitat e.g., terrestrial animal and aquatic animal etc. those classified according to relationship with man are wild animals and domestic animals.

With regard to domestic animals, which is going to be our focus in these studies?

A domestic animal is animal that man has been able to tamed, control and has been freely reproducing under his supervision. Examples of domestic animals include Goat, Sheep, Camel, Donkey rabbit, pig, Cattle, Poultry, bee, grass cutter, snail, fishes.

The domesticated animal can further be classified based on their mode of nutrition.

1. Non – ruminant animals
2. Ruminant animals.

DEFINITION OF MONOGASTRIC OR NON –RUMINANT ANIMALS

These are animals which possess only one stomach and do not ruminate. They have simple stomach and cannot digest cellulose and fibre properly.eg pig rabbit poultry birds.

DEFINITION OF POLY-GASTRIC OR RUMINANT ANIMAL.

These are farm animals that possess four stomach chambers hence can ruminate. The stomach compartments are rumen, reticulum omasum and abomasum’s.

Differences between mono-gastric and poly-gastric animal.

Mono-gastric animal	poly-gastric animal
Have simple stomach	have complex stomach
Do not chew cud	chew cud –regurgitate
Do not produce enzyme cellulose	produce enzyme cellulase
No rumen, no bacteria	rumen contains bacteria
Feed on non-fibres – concentrate	feed on fibre- roughage
Secrete enzyme amylase	do not secrete enzyme amylase

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