西藏高羊茅和箭筈豌豆不同比例混合青贮的营养成分和发酵品质研究  

Study on different mixing ratios silage of Festuca arundinacea and Vicia sativa on nutritional composition and fermentation quality in Xizang

作　　者：严守星 谭占坤 王五一 王燕红 阚勇 李敬雨 刘欣雨 刘锁珠 YAN Shouxing;TAN Zhankun;WANG Wuyi;WANG Yanhong;KAN Yong;LI Jingyu;LIU Xinyu;LIU Suozhu

机构地区：[1]西藏农牧学院动物科学学院,西藏林芝860000

出　　处：《饲料研究》2025年第5期133-137,共5页Feed Research

基　　金：区域科技协同创新专项(项目编号:QYXTZX-NQ2021-01);西藏农牧学院研究生教育创新计划(项目编号:YJS2023-16)。

摘　　要：试验旨在探究西藏高羊茅和箭筈豌豆不同比例混合青贮的营养成分和发酵品质。研究设置5个不同混合比例的青贮组,分别高羊茅单独青贮组(A组),高羊茅和箭筈豌豆分别按照4∶1(B组)、3∶2(C组)、2∶3(D组)进行混合组,箭筈豌豆单独青贮组(E组)。青贮60 d。结果显示,青贮30 d时,B组、C组和D组混合青贮的干物质(DM)含量显著低于A组(P<0.05),D组和E组的粗蛋白(CP)含量显著高于A组和B组(P<0.05),D组和E组的中性洗涤纤维(NDF)含量显著低于A组和B组(P<0.05),C组和D组的酸性洗涤纤维(ADF)含量显著低于A组和B组(P<0.05),D组的可溶性碳水化合物(WSC)含量显著高于其他组(P<0.05);A组和E组青贮的pH值显著高于D组(P<0.05),乳酸含量显著低于D组(P<0.05),氨态氮显著低于其他组(P<0.05),乙酸含量显著高于C组和D组(P<0.05);D组的肠杆菌数量显著低于A组和E组(P<0.05),乳酸菌和酵母菌数量显著高于A组、B组和E组(P<0.05)。青贮60 d时,D组的DM含量显著低于A组、B组和C组(P<0.05),A组和B组的CP含量低于D组和E组(P<0.05),D组和E组的NDF含量显著低于A组(P<0.05),D组的ADF含量显著低于A组和B组(P<0.05),D组的WSC含量显著高于A组和B组(P<0.05);D组的pH值显著低于A组和E组(P<0.05),乳酸含量显著高于A组和E组(P<0.05);D组的乳酸菌和酵母菌数量显著高于A组、B组和E组(P<0.05)。研究表明,综合全株高羊茅的最大化应用和发酵质量,全株高羊茅与箭筈豌豆按照2∶3比例混合青贮60 d的效果较好。The study aimed to investigate the nutritional composition and fermentation quality of different mixing ratios silage of Festuca arundinacea and Vicia sativa in Xizang.Five silage groups with different mixing proportions were set up in this study,namely Festuca arundinacea silage group(group A),Festuca arundinacea and Vicia sativa were mixed according to 4∶1(group B),3∶2(group C),2∶3(group D),and Vicia sativa silage group(group E).The silage was stored for 60 days.The results showed that at 30 days of silage,the dry matter(DM)content of groups B,C,and D was significantly lower than that of group A(P<0.05).The crude protein(CP)content of groups D and E was significantly higher than that of groups A and B(P<0.05).The neutral detergent fiber(NDF)content of groups D and E was significantly lower than that of groups A and B(P<0.05).The acid detergent fiber(ADF)content of groups C and D was significantly lower than that of groups A and B(P<0.05).The water-soluble carbohydrate(WSC)content of group D was significantly higher than that of the other groups(P<0.05).The pH of groups A and E was significantly higher than that of group D(P<0.05),the lactic acid content was significantly lower than that of group D(P<0.05),and the ammonia nitrogen content was significantly lower than that of the other groups(P<0.05),and the acetic acid content was significantly higher than that of groups C and D(P<0.05).The number of Enterobacteria in group D was significantly lower than that in groups A and E(P<0.05),the counts of lactic acid bacteria and yeast in group D were significantly higher than those in groups A,B,and E(P<0.05).At 60 days of silage,the DM content of group D was significantly lower than that of groups A,B,and C(P<0.05).The CP content of groups A and B was lower than that of groups D and E(P<0.05).The NDF content of groups D and E was significantly lower than that of group A(P<0.05).The ADF content of group D was significantly lower than that of groups A and B(P<0.05).The WSC content of group D was significantly hig

关 键 词：全株高羊茅 全株箭筈豌豆 混合青贮 发酵品质 

分 类 号：S816[农业科学—饲料科学]