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

表5 单一精饲料原料的瘤胃非降解蛋白质、微生物合成蛋白质和可代谢蛋白质

Table 5 Undegraded dietary protein, microbial synthetic protein and metabolizable protein of concentrates

项目 Items 高粱 Sorghum 玉米 Corn 大麦 Barley 小麦 Wheat 燕麦 Oat 菜籽粕 Rapeseed meal 花生粕 Peanut meal 棉籽粕 Cottonseed meal 豆粕Soybean meal 玉米 酒糟DDGS 瘤胃降解蛋白质 RDP (g·kg-1 DM) 15.59 12.82 15.15 22.16 30.35 68.84 115.23 79.43 85.76 51.16 瘤胃非降解蛋白质 UDP (g·kg-1 DM) 18.98 16.52 18.74 22.31 19.30 63.44 85.85 64.22 67.34 48.89 微生物合成蛋白质 MCP (g·kg-1 DM) 54.50 46.92 50.97 50.64 59.83 73.80 84.74 66.27 81.11 60.87 可代谢蛋白质 MP (g·kg-1 DM) 48.04 41.81 45.46 48.28 50.30 99.47 129.08 96.89 106.18 78.23 可代谢蛋白质占可消化蛋白的比例 The percentage of MP to DP (%) 61.66 55.63 50.96 55.08 53.73 53.33 54.86 62.33 55.14 56.78