AN_SCI 1001 Lecture Notes - Lecture 2: Mammary Gland, Omasum, Victorian Football League
Document Summary
Digestion: includes: mechanical action (chewing/contractions of intestinal tract, chemical action (secretion of hci in stomach/bile in small intestine, action of enzymes (produced by various parts of digestive tract/microorganisms) Act on proteins: role: reduce feed particles to molecules so they can be absorbed into the blood and eventually support body functions. Carnivorous, omnivorous, herbivorous animals: carnivores: consume animal tissues as their source of nutrients. Dogs and cats: herbivores: primarily consume plant tissues. Cattle, horses, sheep, goats: omnivores: eat both plant and animal products. Pigs are typically fed ad libitum (free choice) Large fermentation vat where bacteria and protozoa thrive and break down roughages to obtain nutrients for their use. Microorganisms digest cellulose and can synthesize amino acids from nonprotein nitrogen. Microorganisms are digested in the small intestine to provide nutrients for the animals use. Interacts with the rumen in initiating the mixing activity of the rumen and provides an additional area for fermentation. May not have a major digestive function.
