The Nutrient Requirements of Ruminant Livestock: Technical Review, Tema 2

adequate amino acid animals apparently digested Appendix Table Blaxter body weight breeds calcium calculated calf calves carotene cattle chlorine cholecalciferol coefficient of absorption concentration copper crude protein DAPA deficiency degradability dietary content dietary requirements dry matter intake edition effects efficiency of utilization empty-body weight endogenous faecal loss endogenous loss endogenous urinary energy requirements energy retention equation excretion feed Friesian g/kg given goitrogens grass growth heifers increase iodine iron kg live weight lactating lactating cows lambs live weight Live weight gain Live weight kg liver magnesium maintenance maize meal metabolizable energy mg Fe/kg mg Zn/kg mg/kg DM mg/kg live weight milk yield MJ/kg molybdenum nitrogen Nutr Ørskov phosphorus potassium pregnancy protein requirements ration regression requirements g/day retinol rumen ruminants selenium sheep silage sodium supplementation tissue undegraded unpublished urea values vitamin B12 vitamin D weight per day zinc µg/kg