基于尼龙袋法评价啤酒糟、罗汉果渣和菠萝皮在水牛瘤胃中的降解特性  

Evaluating degradation characteristics of brewer's grains,Siraitia grosvenorii pulp,and pineapple peel in buffalo rumen using nylon bag method

作　　者：王克耀 曾繁泉 罗鲜青 彭丽娟 谢华德 杨承剑 WANG Ke-yao;ZENG Fan-quan;LUO Xian-qing;PENG Li-juan;XIE Hue-de;YANG Cheng-jian

机构地区：[1]广西壮族自治区水牛研究所,广西南宁530001

出　　处：《饲料研究》2024年第13期11-15,共5页Feed Research

基　　金：广西科技重大专项(项目编号:桂科AA22068099-8);广西自然科学基金项目(项目编号:2023JJA130137);国家现代农业产业技术体系“广西奶水牛创新团队建设项目(项目编号:nycytxgxcxtd-2021-21-03)”。

摘　　要：试验旨在研究3种非常规饲料(啤酒糟、罗汉果渣、菠萝皮)的营养成分及其在水牛瘤胃内的降解特性。试验选取3头健康状况良好、装有永久瘤胃瘘管的摩拉杂交母水牛,采用尼龙袋法进行体内试验。结果显示:3种非常规饲料的干物质(DM)、粗蛋白(CP)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)降解率在水牛瘤胃中随时间的延长而逐渐提高,菠萝皮在各个时间点的DM、NDF和ADF瘤胃降解率均显著高于啤酒糟和罗汉果渣(P<0.05)。除12 h和72 h外,菠萝皮在各时间点的CP降解率均显著高于啤酒糟和罗汉果渣(P<0.05),菠萝皮的DM和CP快速降解部分显著高于啤酒糟和罗汉果渣(P<0.05)。3种粗饲料的DM、NDF、ADF有效降解率的排序为菠萝皮>啤酒糟>罗汉果渣。研究表明,菠萝皮和啤酒糟的营养价值较高,可以作为水牛的优质粗饲料。The experiment aimed to study the nutritional components of three unconventional feedstuffs(brewer's grains,Siraitia grosvenorii pulp,and pineapple peel)and their degradation characteristics in the buffalo's rumen.The experiment selected three healthy Murrah crossbred female buffaloes with permanent rumen fistulas and conducted in vivo tests using the nylon bag method.The results showed that the degradation rates of DM,CP,NDF,and ADF of the three unconventional feedstuffs gradually increased in the buffalo's rumen over time.The DM,NDF,and ADF ruminal degradation rates of pineapple peel were significantly higher than those of brewer's grains and Siraitia grosvenorii Pulp at various time points(P<0.05).Except for 12 h and 72 h,the CP degradation rate of pineapple peel at various time points was significantly higher than that of brewer's grains and Siraitia grosvenorii pulp(P<0.05),and the rapid degradation part of DM and CP of pineapple peel was significantly higher than brewer's grains and Siraitia grosvenorii pulp(P<0.05).The effective degradation rates of DM,NDF and ADF of the three roughages were ranked as pineapple peel>brewer's grains>Siraitia grosvenorii pulp.The study suggests that pineapple peel and brewer's grains have higher nutritional value and can serve as high-quality roughage for buffaloes.

关 键 词：啤酒糟 罗汉果渣 菠萝皮 水牛 瘤胃降解率 

分 类 号：S816[农业科学—饲料科学]