肉羊精料可代谢蛋白质预测模型的建立

富丽霞,马涛,刁其玉,成述儒,宋雅喆,孙卓琳

Establishment of a Prediction Model of Metabolizable Protein of Concentrate for Mutton Sheep

FU LiXia,MA Tao,DIAO QiYu,CHENG ShuRu,SONG YaZhe,SUN ZhuoLin

Table 1 Composition and nutrient levels of the diet for nylon bag test and three-step modified in vitro test (Dry matter basis, %)

项目 Items 含量 Content 原料 Ingredients 羊草 Chinese wildrye hay 55.00 玉米 Corn 29.40 豆粕 Soybean meal 14.00 磷酸氢钙 CaHPO4 0.86 食盐 NaCl 0.50 预混料Premix1) 0.24 合计 Total 100 营养水平 Nutrient levels2) 干物质 Dry matter, DM 95.55 有机物 Organic matter, OM 93.68 总能 Gross energy, GE（MJ·kg-1） 16.34 粗蛋白质 Crude protein, CP 11.90 中性洗涤纤维 Neutral detergent fiber, NDF 59.12 酸性洗涤纤维 Acid detergent fibre, ADF 25.22 粗脂肪 Ether digestible organic matter extract, EE 2.21 钙 Ca 0.93 磷 P 0.41