动物营养学报2016，Vol.28Issue(8)：2396-2403,8.DOI:10.3969/j.issn.1006-267x.2016.08.010
不同粗饲料组合对山羊饲粮养分表观消化率及氮平衡的影响
Effects of Different Roughage Combinations on Dietary Nutrient Apparent Digestibility and Nitrogen Balance of Goats
摘要
Abstract
This experiment was conducted to investigate the effects of different roughage combinations on dieta⁃ry nutrient apparent digestibility and nitrogen balance of goats. Four healthy goats ( Boer goats×Xuhuai goats) with an average body weight of (26.63±2.60) kg were used in a 4×4 Latin square design. Roughage for basal diet was straw ( A) , and straw in experimental diets was partly substituted by soybean hulls ( B) , Enoki mush⁃room residues ( C) and soybean hulls+Enoki mushroom residues ( D) , respectively. The four diets had similar levels of nitrogen, energy and fiber. The experiment included four stages with 15 d per stage ( 10 d for prelimi⁃nary trial and 5 d for formal trial. The results showed as follows: 1 ) apparent digestibility of dry matter ( DM) , acid detergent fiber ( ADF) , phosphorus and gross energy had no difference in four diets ( P>0.05) . 2) Compared with diet A, diet D significantly improved apparent digestibility of organic matter ( OM) and neutral detergent fiber ( NDF) ( P<0.05) , diet B had no significant difference with diet A ( P>0.05) , calci⁃um apparent digestibility of diet B, diet C and diet D was not significantly different ( P>0.05) , which was sig⁃nificantly higher than that of diet A ( P<0.05) . 3) Compared with diet A, diet B, diet C and diet D signifi⁃cantly improved nitrogen retention rate and nitrogen biological value ( P<0.05) . It is concluded that compared with straw as single roughage, using soybean hulls, Enoki mushroom residues or their combination to partly substitute straw can improve apparent digestibility of OM, NDF and calcium, nitrogen retention rate and nitro⁃gen biological value; it can obtain better effects that using the combination of soybean hulls and Enoki mush⁃room residues to partly substitute straw as roughage under conditions in the present experiment.关键词
山羊/稻草/金针菇菌渣/大豆皮/表观消化率/代谢Key words
goat/straw/Enoki mushroom residue/soybean hull/apparent digestibility/metabolism分类
农业科技引用本文复制引用
高立鹏,孟梅娟,白云峰,涂远璐,严少华,刘建..不同粗饲料组合对山羊饲粮养分表观消化率及氮平衡的影响[J].动物营养学报,2016,28(8):2396-2403,8.基金项目
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 （）
