树叶、秸秆及糟渣类饲料在杜×寒杂交羊瘤胃中的降解特性研究  

Study on Nutritional Value and Rumen Degradation Characteristics of Leaves, Straw and Dregs for Sheep

作　　者：张暄梓 于胜晨 郝小燕 张英杰[3] 郭云霞[3] 张建新[1] 霍文婕[1] ZHANG Xuanzi;YU Shengchen;HAO Xiaoyan;ZHANG Yingjie;GUO Yunxia;ZHANG Jianxin;HUO Wenjie(College of Animal Science,Shanxi Agricultural University,Shanxi Taigu 030801,China;College of Animal Sciences and Technology,Northwest A&F University,Shaanxi Yangling 712100,China;College of Animal Sciences and Technology,Hebei Agricultural University,Hebei Baoding 07100,China)

机构地区：[1]山西农业大学动物科学学院,山西太谷030801 [2]西北农林科技大学动物科技学院,陕西杨凌712100 [3]河北农业大学动物科技学院,河北保定071000

出　　处：《中国畜牧杂志》2021年第5期165-170,176,共7页Chinese Journal of Animal Science

基　　金：国家重点研发计划(2018YFD0502104);国家肉羊产业技术体系专项(CARS-38);山西省1331工程建设项目(J202011315);山西省科技成果转化引导专项(201904D131026);山西省重点研发计划项目(201903D211012)。

摘　　要：试验旨在研究树叶(柳树叶、槐树叶)、秸秆(水稻秸秆、玉米秸秆)及糟渣(葡萄渣和醋糟)3类粗饲料在绵羊瘤胃中的降解特性。选用3只带有永久性瘤胃瘘管的杜(♂)×寒(♀)杂交F1代成年阉羊,采用尼龙袋法测定6种粗饲料的干物质(DM)、粗蛋白质(CP)和中性洗涤纤维(NDF)的瘤胃降解特性。结果表明:树叶类粗饲料的DM、NDF和ADF含量均低于秸秆类和糟渣类(P<0.05);柳树叶的CP含量高于其他5种粗饲料(P<0.05);树叶类粗饲料的各能量价值以及各个时间点CP、DM和NDF的降解率高于其他两类粗饲料(P<0.05),其中柳树叶的CP和NDF的有效降解率(ED_(CP)和ED_(NDF))最高,槐树叶的DM有效降解率(ED_(DM))最高。综上所述,树叶类粗饲料的营养价值较秸秆类和糟渣类更高。The objective of the experiment was to study the nutritional value and rumen degradation characteristics of leaves(willow leaves and sophora japonica leaves),straw(rice straw and corn straw)and dregs(grape pomace and vinegar residue)for sheep.Three F1 Dorper×thin-tailed Han ram sheep fitted with permanent rumen cannulas were selected.The nylon bag method was used to evaluate the rumen degradability of dry matter(DM),crude protein(CP),neutral detergent fiber(NDF),and the routine nutrients and energy value were analyzed.The results showed as follows,the content of DM,NDF and acid detergent fiber(ADF)in leaf roughage was significantly lower than that of straw and dregs(P<0.05),and the CP content of willow leaves was significantly higher than that of other five kinds of roughage(P<0.05).The degradation rate of CP,DM and NDF at each time point and the energy value of leaf roughage were significantly higher than those of other two types of roughage(P<0.05),and among them,the CP effective degradability(ED_(CP))and the NDF effective degradability(ED_(NDF))of willow leaves were the highest,the DM effective degradability(ED_(DM))of sophora japonica leaves was the highest.In conclusion,the nutritional value of leaf roughage is higher than that of straw and dregs,and the feeding effect of willow leaves is the best.

关 键 词：树叶 秸秆 糟渣 尼龙袋试验 瘤胃降解特性 绵羊 

分 类 号：S826.5[农业科学—畜牧学]