GRAND MASTER feeds doesn’t require any extra supplements to be added while feeding. Generally adding supplements like wheat bran, rice bran cotton seed, coconut cakes, ground nut cakes, maize powder etc may be available or unavailable in seasons or the price may be varying in seasons unpredictably. some times farmers use calcium and other minerals for their cattle and all these extra feeding will lead to high expense when you keep calculate for one year. grand master feeds doesn’t use any chemical like urea or ammonia or hormones or antibiotics for extra milk production all these practices may get you abnormal milk production but eventually your farm will gets list of expenses of medicines, doctor expense, infertility issue loss etc.