Wpływ sprzężonych dienów kwasu linolowego na krowy mleczne

Nutrition is one of the most important factors influencing animal health status, welfare and productivity. High-yielding dairy cows exhibit negative energy balance during early lactation, because amount of energy secreted in milk exceeds the energy content of ingested feed. Conjugated linoleic acids (CLAs), inhibit fatty acid synthesis in the bovine mammary gland. Dietary CLA supplementation may decrease fat content in cow milk and reduce milk fat output. Dairy cows ingesting feed with added CLAs may exhibit better energy balance during early lactation. CLA supplementation increases concentrations of these substances in milk. Furthermore, CLAs may modulate the immune functions in dairy cows. The aim of this paper was to present the aspects connected with the influence of conjugated linoleic acids on dairy cows.