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| 蛋白水平对舍饲辽宁绒山羊产绒性能及消化代谢的影响 | |
| 引用本文： | 刘海斌,胡锐,蔡凤坤,史延平,戚磊,杨靖,卫功庆.蛋白水平对舍饲辽宁绒山羊产绒性能及消化代谢的影响[J].吉林农业大学学报,2010,32(1):89-94. |
| 作者姓名： | 刘海斌 胡锐 蔡凤坤 史延平 戚磊 杨靖 卫功庆 |
| 作者单位： | 1. 河北北方学院动物科技学院,张家口,075000 2. 辽东学院,丹东,118000 3. 吉林农业大学中药材学院,长春,130118 |
| 基金项目： | 辽宁省自然科学基金项目(20041087) |
| 摘 要： | 为探索舍饲辽宁绒山羊对蛋白质的营养需要,采用单因子试验方法,选取辽宁绒山羊2周岁母羊15只,随机分为3组,每组5只,研究日粮不同蛋白水平(9.26%、10.06%、11.02%)对辽宁绒山羊产绒性能及消化代谢的影响。结果表明:日粮蛋白水平对辽宁绒山羊产绒性能无显著影响(P0.05),日粮蛋白水平达到9.26%时,就能满足辽宁绒山羊山羊绒生长需要,日粮蛋白水平为10.06%,产绒量最高,为453.2 g,羊绒长度和绒层厚度也最高,羊绒细度最细,分别为5.72,5.31 cm和15.26μm,但各组间差异不显著(P0.05),可能是由于绒山羊个体间差异所致;日粮蛋白水平11.02%组,尿氮、可消化氮、沉积氮、氮表观沉积率均最大,分别为3.13,8.07,4.94 g/d和43.94%,均显著高于蛋白水平9.26%组和10.06%组(P0.05),粪氮最小,为3.17 g/d,显著低于其余2组。从氮平衡来看,3组均为正平衡,能够不同程度地促进山羊绒的生长;日粮蛋白水平对粗纤维消化率无显著影响(P0.05);日粮蛋白水平对能量消化代谢无显著影响(P0.05)。配制辽宁绒山羊日粮,粗蛋白水平以11.02%为宜。 |
| 关 键 词： | 蛋白水平 辽宁绒山羊 舍饲 产绒量 消化代谢 |
| 收稿时间： | 2008-07-30 |
| 修稿时间： | 2008-12-13 |
Effects of Protein Level on Production Performance of Cashmere and Digestion and Metabolism in Feed-Lot Liaoning Cashmere Goats |
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| LIU Hai-bin,HU Rui,CAI Feng-kun,SHI Yan-ping,QI Lei,YANG Jing,WEI Gong-qing.Effects of Protein Level on Production Performance of Cashmere and Digestion and Metabolism in Feed-Lot Liaoning Cashmere Goats[J].Journal of Jilin Agricultural University,2010,32(1):89-94. | |
| Authors: | LIU Hai-bin HU Rui CAI Feng-kun SHI Yan-ping QI Lei YANG Jing WEI Gong-qing |
| Institution: | 1．College of Animal Science|Hebei North University|Zhangjiakou 075000|China； 2．Liaodong College|Dandong 118000|China； 3．College of Chinese Medicinal Materials, Jilin Agricultural University|Changchun 130118|China |
| Abstract: | In order to investigate the feeding standardization of protein, by means of one-factor experiment, 15 healthy 2-year-old female Liaoning cashmere goats were randomly divided into 3 groups, 5 in every group, to study the effects of different protein levels (9.26%,10.06%,11.02%) on production of cashmere and digestion and metabolism. The results showed that dietary protein levels had no significant effect on performance of cashmere (P>0.05);retained N was 4.94 g/d respectively in group Ⅲ, significantly higher than that of the other two groups (P<0.05). There was no significant difference (P>0.05) of CF digestibility and GE metabolism among the three tested groups. It was suggested that the dietary protein level was 11.02% for feed-lot Liaoning cashmere goat. |
| Keywords: | protein level Liaoning cashmere goat feed-lot cashmere production digestion and metabolism |
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