Determination and prediction of the digestible and metabolisable energy content of barley for growing pigs based on chemical composition

摘要: ABSTRACTThis experiment was conducted to define the sources of variation determining energy content barley and develop a practical method predict digestible (DE) metabolisable (ME) individual samples. The 19 samples used in this study were diverse varieties grown different regions. feeding 57 barrows (initial body weight 31.5 ± 3.2 kg) over two consecutive periods (n = 6 per treatment) using completely randomised design. During each period, pigs placed metabolic crates for 5-d total collection faeces urine following 10-d adaptation diets. Among samples, on dry matter (DM) basis levels neutral detergent fibre, acid fibre (ADF), crude protein starch ranged from 16.1% 38.9%, 3.9% 9.6%, 10.1% 16.8% 43.5% 57.9%, respectively. mean determined DE ME contents amounted 14.7 14.4 MJ/kg DM varied among by 1....