QUALITY AND SAFETY OF FEED USED IN FEEDING CATTLE

This article addresses issues related to the quality and safety of feed and additives used in the feeding ofcattle. The indicators characterizing the quality of feed – dry matter, energy, crude protein, digestible protein inthe intestine, balance of protein in the rumen, calcium, phosphorus and raw fiber are described. Questionsrelated to the requirements of dairy cows on their need for nutrients and levels of certain undesirable substancesin feed (chemical, microbiological and physical) are reported. Legal norms and regulations concerning thequality and safety of food are considered and the influence of some genetically modified plants used as foodfor cattle are viewed.