Partial Replacement of Protein By Non-Protein Nitrogenous sources in the Rations of Milking Cows

livestock industry in Egrpt will expected to face a shortage in feed. stuffs, because of the ever increasing numbers of livestock and. the limitation of feed sources. Besides, grains and legume seeds, which may contribute a big share in animal nutrition, are rather expensive and. used. mainly for human consumption. The Present work aimes to Becausr most dairymen recommeng that rice bran must be maintained ay low levels in the rations because of its adverse effect on the production performances of the dairy cows, so, two levels of rice bran were incorporated in the rations in order to study their effect on the production performances of the lactating cows.