金针菇菌渣对山羊饲粮养分表观消化率及氮平衡的影响

发布时间：2018-10-12 21:40

【摘要】：本试验旨在研究不同金针菇菌渣添加比例对山羊饲粮养分表观消化率及氮平衡的影响。选用4只体重为(22.5±0.6)kg的波尔山羊×徐淮山羊(波杂山羊),采用4×4拉丁方设计,金针菇菌渣在饲粮中的添加比例分别为0(对照)、15%、25%和40%,用于替代稻草,4组饲粮营养水平接近;试验分为4期,每期15 d,其中预试期10 d,正试期5 d。结果表明:1)与对照组比较,饲粮金针菇菌渣添加比例为15%、25%和40%时对山羊的钙、磷表观消化率无显著影响(P0.05),但能够显著提高干物质、有机物、中性洗涤纤维、酸性洗涤纤维以及总能表观消化率(P0.05),且这些指标随金针菇菌渣比例的升高逐渐降低。2)与对照组比较,饲粮金针菇菌渣添加比例为15%、25%和40%时显著提高了山羊氮沉积率以及氮生物学价值(P0.05),且这2个指标随金针菇菌渣比例的升高逐渐降低。结果提示,在饲粮中添加金针菇菌渣可以提高山羊对营养物质消化率;在本试验条件下,金针菇菌渣在山羊饲粮中的最适宜添加比例为15%~25%。
[Abstract]:The purpose of this study was to study the effects of different proportion of Flammulina velutipes residue on the apparent digestibility and nitrogen balance of dietary nutrients of goats. Four Boer goats 脳 Xuhuai goats with weight of (22.5 卤0.6) kg were used in the 4 脳 4 Latin square design. The proportion of Flammulina velutipes residue added in diet was 0 (control), 15% and 40% respectively. The experiment was divided into 4 periods (15 days), including 10 days in pretest period and 5 days in positive trial period. The results showed that: 1) compared with the control group, the dietary Flammulina velutipes residue had no significant effect on the apparent digestibility of calcium and phosphorus (P0.05), but could significantly increase the dry matter, organic matter and neutral washing fiber when the proportion of 15% Flammulina velutipes and 40% Flammulina velutipes was 15% and 40%, respectively. The apparent digestibility of acid detergent fiber and total energy (P0.05), and these indexes decreased gradually with the increase of Flammulina velutipes (Flammulina velutipes) residue ratio. 2) compared with the control group, The ratio of Flammulina velutipes (15%) and Flammulina velutipes (40%) significantly increased the nitrogen deposition rate and biological value of nitrogen (P0.05), and these two indexes decreased gradually with the increase of Flammulina velutipes residue ratio. The results suggested that the digestibility of nutrients in goats could be improved by adding Flammulina velutipes residue to the diet, and the optimum proportion of Flammulina velutipes residue added in the diet of goats was 15%.
【作者单位】：江苏省农业科学院动物科学基地;
【基金】：江苏省农业自主创新基金[cx(15)1003-11] 公益性(农业)行业科研专项(201203050-4)
【分类号】：S827.5

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