首页|6种水牛饲料原料的营养价值评定及瘤胃降解特性研究

6种水牛饲料原料的营养价值评定及瘤胃降解特性研究

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本试验旨在研究6种水牛饲料原料的营养价值及瘤胃降解特性.试验选用健康状态良好、体重相近的3头装有永久性瘤胃瘘管装置的水牛,采用栓系式饲养,分别测定玉米、豆粕、麦麸、白酒糟、青贮玉米秸秆和花生秧的常规营养成分含量以及干物质(DM)、粗蛋白质(CP)和有机物(OM)瘤胃有效降解率,并计算这6种水牛饲料原料的瘤胃降解氮(RDN)和可发酵有机物(FOM)含量.结果表明:1)麦麸、玉米、豆粕、白酒糟、青贮玉米秸秆和花生秧的DM瘤胃有效降解率分别为59.88%、65.18%、67.51%、50.01%、57.38%和60.48%,CP瘤胃有效降解率分别为 71.95%、61.56%、58.84%、52.35%、54.86%和 52.56%,OM 瘤胃有效降解率分别为 59.24%、65.10%、65.89%、49.22%、57.61%和61.40%;2)麦麸、玉米、豆粕、白酒糟、青贮玉米秸秆和花生秧的 FOM 含量分别为 0.56、0.64、0.62、0.46、0.53 和 0.58 kg/kg,RDN 含量分别为 18.77、10.70、45.93、23.97、10.93和10.61 g/kg.综上所述,精料中玉米和豆粕的饲用价值较高,是优质的水牛饲料原料;粗料中青贮玉米秸秆和花生秧的饲用价值较高,是较优质的水牛粗饲料原料,在配制水牛饲粮时应该合理搭配.
Evaluation of Nutritional Value and Rumen Degradation Characteristics of Six Water Buffalo Feedstuffs
This experiment was conducted to study the nutritional value and rumen degradation characteristics of six water buffalo feedstuffs.Three healthy water buffaloes with similar body weight and permanent rumen fistula were selected for the study and were housed in tie-stalls.The conventional nutrient contents and the ru-men effective degradation rates of dry matter(DM),crude protein(CP)and organic matter(OM)in corn,soybean meal,wheat bran,distiller's grains,corn stalk silage and peanut vine were determined,and the con-tents of rumen degradable nitrogen(RDN)and fermentable organic matter(FOM)in these six water buffalo feedstuffs were calculated.The results show that:1)the rumen effective degradation rates of DM in wheat bran,corn,soybean meal,distiller's grains,corn stalk silage and peanut vine were 59.88%,65.18%,67.51%,50.01%,57.38%and 60.48%,the rumen effective degradation rates of CP were 71.95%,61.56%,58.84%,52.35%,54.86%and 52.56%,and the rumen effective degradation rates of OM were 59.24%,65.10%,65.89%,49.22%,57.61%and 61.40%,respectively.2)The FOM contents in wheat bran,corn,soybean meal,distiller's grains,corn stalk silage and peanut vine were 0.56,0.64,0.62,0.46,0.53 and 0.58 kg/kg,and the RDN contents were 18.77,10.70,45.93,23.97,10.93 and 10.61 g/kg,respectively.In conclusion,in concentrates,the corn and soybean meal have relatively high feeding value and are high-qual-ity feedstuffs for water buffalo;in roughage,the corn stalk silage and peanut vine have relatively high feeding value and are relatively high-quality roughage raw materials for water buffalo.When formulating water buffalo diets,they should be properly combined.[Chinese Journal of Animal Nutrition,2024,36(12):7819-7828]

water buffalorumen degradation raterumen degradable nitrogenfermentable organic matterfeedstuffsevaluation of nutritional value

邵鹏程、唐庆凤、覃林杰、卜泽明、湛扬阳、邹彩霞、文崇利、林波、孔志伟

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广西大学动物科学技术学院,南宁 530005

广西扶绥乳业科技小院,崇左 532100

广西壮族自治区饲料监测所,南宁 530005

广西壮族自治区水牛研究所,南宁 530012

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水牛 瘤胃降解率 瘤胃降解氮 可发酵有机物 饲料原料 营养价值评定

2024

动物营养学报
中国畜牧兽医学会

动物营养学报

CSTPCD北大核心
影响因子:1.297
ISSN:1006-267X
年,卷(期):2024.36(12)