ANFS251 Lecture Notes - Lecture 13: Rumen, B Vitamins, Dietary Reference Intake

• School: University of Delaware
• Department: Animal and Food Sciences
• Course: ANFS251
• Professor: Lesa Griffiths

Document Summary

Organic substances required by animal tissues in very small amounts. All are essential for animal tissues, but some species are able to synthesise certain vitamins in tissues or can utilize vitamins sytneezised by microorganisms in git. Many water soluble vitamins function as cofactors of enzymes. Fat soluble vitamins do not act as cofactors but are involved in other processes that are essential to bodily functions. Major storage site for most vitamins is the liver. Can also be stored in kidney, spleen and tissues. Most stored vitamins re bound to specific proteins. Sorted vitamins are released at rates necessary to maintain a relatively constant level in blood. Presence in milk in importance because it often provides the sole food source for newborn animals. Colostru is especially high in vitamin content. Ensures an adequate intake for the animal early in its life. Vitamins are absorbed primarily in small intestine.