
Keywords: چربی و پروتئین اصلاح شیر; ARmilk; allocation ratio milk; BMR; beef milk ratio; C; carbon; CH4; methane; CM; clinical mastitis; CO2; carbon dioxide; CW; carcass weight; DM; dry matter; DMI; dry matter intake; DP; dynamic programming; ENPV; expected net present value; FPCM; fat and