几种处理对柠条养分的影响及其在瘤胃内的降解  

Effect of several treatments on nutrients of Caragana and their degradation in cud

作　　者：温学飞[1] 马文智[2] 李红兵 季波[1] 

机构地区：[1]宁夏农林科学院沙漠化治理研究所,宁夏银川750002 [2]宁夏大学农学院草业科学研究所,宁夏银川750021 [3]吴忠市利通区古城兽医站,宁夏吴忠751101

出　　处：《草业科学》2006年第2期38-42,共5页Pratacultural Science

基　　金：自治区林业科技重点攻关项目"柠条饲料开发利用技术研究";自治区"十五"科技兴农重大示范推广项目"盐池沙漠化土地综合治理技术示范推广"(2002-001-01)

摘　　要：用3头瘘管羊,以尼龙袋法(in situ)测定黄贮柠条Caragana microphylla、氨化柠条、生化处理柠条等在瘤胃发酵6,12,24,36,48和72 h后粗蛋白(CP)、酸性洗涤纤维(ADF)、中性洗涤纤维(NDF)、酸性洗涤木质素(ADL)的降解率。结果表明,与对照组相比,处理柠条CP含量都上升(P<0.05),其中氨化柠条粗蛋白上升最高,NDF、ADF和ADL含量却都有所下降;柠条以尼龙袋法在瘤胃内降解48 h后,氨化处理柠条各营养物质降解效果都表现出最好,CP降解率为56.62%,NDF降解率为47.03%,ADF降解率为37.08%,NDL降解率为35.58%,与其它各组相比,差异显著(P<0.05)。3 fistula sheep and nylon bag method （in situ） were used to measure the degradation rate of CP,ADF.NDF.ADL after Caragana hay,ammoniated Caragana, biochemically treated Caragana being fermented 6,12,24,36,48and 72 h in the cud. The results indicated that, with comparison to the contrast, CP content of all treated Caragana increased （P〈0.05）, among them ammoniated Caraganawas the highest with increase of 33% higher than the contrast. NDF,ADF and ADL contents all decreased to some extent; After Caragana being degraded 48 h in the cud using nylon bag method , degrading result of every nutrient of ammoniated Caragana was the best, degrading rate of CP was 56.62%, NDF 47.03%, ADF 37.08%, NDL 35.58% ; compared with other treatments, the difference was significant （P〈 0. 05）, nutrients degrading rates were 45.0%, 32. 18%, 10.49% and 54.62% higher than the contrast separately.

关 键 词：瘤胃降解率 柠条 尼龙袋法 

分 类 号：S816.5[农业科学—饲料科学]