Answer:
Because of the difference in digestive system.
Explanation:
RUMINANT ANIMALS : they are animals that chew their cud. They are characterized by the fact that they have four different compartments in their stomach. Common examples are goats, cows/cattles, sheep, etc
SWINE AND POULTRY ANIMALS: while swine mainly refer to pig(animal), poultry animals are different types of birds.
Ruminant animals, swines and poultry animals have different formulations for their diet.
The formulation of ruminant diets and rations is somewhat different in procedures from the formulation of swine and poultry diets because of the reason below;
=> The main thing here is because of their digestive system. Ruminant animals have well built digestive system which enables them to be able to eat fibrous plants and ferment roughages which are used for energy which is no so in swines and poultry animals.