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不同浓度乳酸菌对构树枝叶青贮品质的影响
引用本文:朱闫陈,陈奕业,田汉晨,吴龙飞,郭勇庆,邓铭,孙宝丽. 不同浓度乳酸菌对构树枝叶青贮品质的影响[J]. 饲料研究, 2021, 0(3): 78-81
作者姓名:朱闫陈  陈奕业  田汉晨  吴龙飞  郭勇庆  邓铭  孙宝丽
作者单位:华南农业大学动物科学学院
基金项目:广东省现代农业产业技术体系南方现代草牧业(羊)产业创新团队—饲料资源开发与利用岗位专家项目(项目编号:粤农农函(2019)1019号)。
摘    要:试验旨在研究不同浓度乳酸菌对于构树枝叶青贮品质的影响.共5个处理组,对照组(LA0)不使用添加剂,试验组青贮料调制时分别添加乳酸菌1×105 CFU/mL(LA5)、1×106 CFU/mL(LA6)、1×107 CFU/mL(LA7)以及1×106 CFU/mL+2%糖蜜+4%纤维素酶(混合添加剂组),每个处理组设4...

关 键 词:构树  青贮品质  乳酸菌  糖蜜  纤维素酶

Effect of different concentrations of lactic acid bacteria on the silage quality of Broussonetia papyrifera twigs and leaves
ZHU Yan-chen,CHEN Yi-ye,TIAN Han-chen,WU Long-fei,GUO Yong-qing,DENG Ming,SUN Bao-li. Effect of different concentrations of lactic acid bacteria on the silage quality of Broussonetia papyrifera twigs and leaves[J]. Feed Research, 2021, 0(3): 78-81
Authors:ZHU Yan-chen  CHEN Yi-ye  TIAN Han-chen  WU Long-fei  GUO Yong-qing  DENG Ming  SUN Bao-li
Abstract:The experiment aimed to study the effect of different concentrations of lactic acid bacteria on the silage quality of Broussonetia papyrifera twigs and leaves. A total of five treatment groups were designed. No additives were used in the control group(LA0), lactic acid bacteria 1×105 CFU/mL(LA5), 1×106 CFU/mL(LA6), 1×107 CFU/mL(LA7) and 1×106 CFU/mL+2% molasses +4% cellulase(mixed additive group) were added during silage preparation in the experimental group, and four replicates were set in each treatment group. Sensory evaluation, nutrient determination and fermentation quality analysis were performed after 50 d of silage. The results showed that the mixed additive group was grade one silage and the other treatment groups were all grade two silage. The content of crude protein(CP) and crude ash(ASH) in experimental group was significantly higher than that in the control group(P<0.05). Except for LA5 group, pH value and the content of ammonia nitrogen(NH3-N) in other experimental groups was significantly lower than that in control group(P<0.05). In the lactic acid bacteria test group, the pH value, NH3-N, propionic acid(Pa) and butyric acid(Ba) content decreased with the increase of lactic acid bacteria concentration, while the lactic acid(La) content increased.The content of CP in the mixed additive group was significantly higher than that in LA0, LA6 and LA7 groups(P<0.05).The content of pH value and NH3-N was significantly lower than that in LA0, LA5 and LA6 groups(P<0.05). The content of soluble carbohydrate(WSC), ASH and lactic acid was significantly higher than that in control group(P<0.05). The content of neutral detergent fiber(NDF) and hemicellulose(HC) was significantly lower than that in other groups(P<0.05).In the experiment, the silage of Broussonetia papyrifera twigs and leaves treated with mixed additives had the best quality.
Keywords:Broussonetia papyrifera  quality of silage  lactic acid bacteria  molasses  cellulase
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