The Influence Of Nutrition On Cattle Performance

Nutritional needs are greatly increase at the onest of lactation, particularly for breeds of dairy cattles, they are capable of producing much mor milk than their offspring require. The greatest challenge is to meet the energy requirements of the animal, While maintaining sufficient fiber in the diet for normal rumen function. The protein requirement also,adequate intake of other minerals may be related to other repoductive problems. The aim of this work was planned to follow up the following : increases dramatically and is best satisfied by Effect of plane of nutrition on performance of friesian crossbred heifers during growth, pregnancy and lactation. Improving of fertility of friesian crossbred heifers and milk production by modifying of nutritional requirements and retention for animals.