日粮能氮比对燕山绒山羊生长性能及 营养物质表观消化率的影响

张继伟,高昆,张英杰,刘月琴,段春辉

Effects of Diets with Energy-to-Nitrogen Rations on Growth Performance and Nutrients Apparent Digestibility in Growing Yanshan Cashmere Goat

ZHANG JiWei,GAO Kun,ZHANG YingJie,LIU YueQin,DUAN ChunHui

表6 不同能氮比对25—35 kg燕山绒山羊其他营养物质表观消化率的影响

Table 6 Effects of different energy-to-nitrogen rations on other nutrient apparent digestibility from 25 kg to 35 kg BW of Yanshan cashmere goats (%)

项目 Items 干物质 DM 有机物 OM 中性洗涤纤维 NDF 酸性洗涤纤维 ADF 粗脂肪 EE 钙 Ca 磷 P 组别 Groups Ⅰ组 61.67±2.88c 63.61±2.70c 41.45±4.99 38.23±5.67 79.43±5.80bc 40.10±4.55f 28.90±4.53 Ⅱ组 61.59±1.79c 63.08±1.71c 41.45±2.90 36.82±3.11 77.37±5.29c 48.35±6.08de 26.68±5.61 Ⅲ组 63.12±3.05c 64.43±2.97c 43.57±4.18 37.71±3.65 81.06±7.29bc 46.13±1.71ef 37.17±2.67 Ⅳ组 69.56±0.38b 71.01±0.19b 47.33±0.31 43.87±1.63 82.54±2.08abc 45.43±1.75ef 34.70±9.64 Ⅴ组 68.13±1.57b 69.37±1.66b 43.13±2.37 38.23±2.99 85.84±4.07ab 53.19±4.18cde 30.74±13.11 Ⅵ组 68.18±3.38b 69.54±3.26b 44.76±8.62 39.29±9.29 83.35±5.28abc 55.03±5.12bcd 29.18±9.46 Ⅶ组 75.03±2.06a 76.49±2.31a 42.61±4.98 37.24±3.99 88.84±2.88a 58.63±7.39abc 33.14±3.69 Ⅷ组 74.30±1.90a 75.57±1.89a 42.79±3.70 37.76±4.64 86.82±3.74ab 61.23±5.09ab 28.02±3.85 Ⅸ组 75.08±2.35a 76.26±2.41a 45.33±7.24 38.16±7.46 85.81±2.42ab 63.57±5.97a 30.94±6.13 P值 P value 能量Energy <0.001 <0.001 0.369 0.330 0.001 <0.001 0.958 蛋白Protein 0.650 0.531 0.583 0.593 0.990 0.004 0.341 能量×蛋白 Energy×protein 0.825 0.906 0.808 0.775 0.526 0.672 0.359 主效应 Main effects 能量 Energy 低Low 62.13±2.49c 63.70±2.35c 42.16±3.86 37.59±3.93 79.29±5.81b 44.86±5.46c 30.91±6.19 中Medium 68.62±2.08b 69.97±2.06b 45.07±5.01 40.46±5.76 83.91±3.93a 51.21±5.62b 31.54±10.13 高High 74.80±1.94a 76.11±2.04a 43.58±5.14 37.72±5.05 87.15±3.07a 61.14±6.01a 30.70±4.77 蛋白 Protein 低Low 68.75±6.02 70.37±5.82 43.80±4.54 39.78±4.81 83.60±5.41 48.05±9.36b 32.25±6.42 中Medium 68.01±5.65 69.34±5.60 42.45±2.85 37.60±3.37 83.34±5.96 54.25±7.26a 28.48±7.91 高High 68.79±5.78 70.08±5.70 44.55±6.32 38.39±6.54 83.41±5.27 54.91±8.54a 32.43±7.03