ANN 111: Principles of Animal Nutrition and Feed Technology (2+1)

FUNCTIONS

• The coenzymic forms of vitamin B₁₂ function in several important enzyme systems.
• These include isomerases, dehydrases and enzymes involved in the biosynthesis of methionine from homocysteine.
• Of special interest in ruminant nutrition is the role of vitamin B12 in the metabolism of propionic acid into succinic acid.
• In this pathway, the vitamin is necessary for the conversion of methylmalonyl coenzyme A into succinyl coenzyme A