[1]赵金鹏,赵杰,李君风,等.不同添加剂对水稻秸秆青贮发酵品质和结构性碳水化合物组分的影响[J].南京农业大学学报,2019,42(1):152-159.[doi:10.7685/jnau.201803011]
 ZHAO Jinpeng,ZHAO Jie,LI Junfeng,et al.Effect of different additives on fermentation quality and structural carbohydrates compositions of rice straw silage[J].Journal of Nanjing Agricultural University,2019,42(1):152-159.[doi:10.7685/jnau.201803011]
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不同添加剂对水稻秸秆青贮发酵品质和结构性碳水化合物组分的影响()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
42卷
期数:
2019年1期
页码:
152-159
栏目:
动物科学
出版日期:
2019-01-09

文章信息/Info

Title:
Effect of different additives on fermentation quality and structural carbohydrates compositions of rice straw silage
作者:
赵金鹏1 赵杰1 李君风1 董志浩1 陈雷1 白云峰2 贾玉山3 邵涛1
1. 南京农业大学饲草调制加工与贮藏研究所, 江苏 南京 210095;
2. 江苏省农业科学院循环农业研究中心, 江苏 南京 210014;
3. 内蒙古农业大学农业农村部饲草栽培、加工与高效利用重点实验室, 内蒙古 呼和浩特 010018
Author(s):
ZHAO Jinpeng1 ZHAO Jie1 LI Junfeng1 DONG Zhihao1 CHEN Lei1 BAI Yunfeng2 JIA Yushan3 SHAO Tao1
1. Institute of Ensiling and Processing of Grass, Nanjing Agricultural University, Nanjing 210095, China;
2. Circular Agriculture Research Center, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
3. Key Laboratory of Forage Cultivati
关键词:
水稻秸秆添加剂发酵品质结构性碳水化合物
Keywords:
rice strawadditivesfermentation qualitystructural carbohydrates
分类号:
S816.5+3
DOI:
10.7685/jnau.201803011
摘要:
[目的]本文旨在评价甲酸、纤维素酶和乳酸菌对水稻秸秆青贮发酵品质和结构性碳水化合物降解的影响。[方法]试验设无添加对照组(CK)、甲酸添加(6 mL·kg-1)组(F)、纤维素酶添加(0.5 g·kg-1)组(C)、乳酸菌添加1×106 CFU·g-1组(L)和乳酸菌+纤维素酶组合添加组(CL),添加量以鲜质量计。水稻秸秆青贮6、15、30和60 d后采集样品,分析青贮饲料发酵品质和结构性碳水化合物的组分变化。[结果]与对照组相比,添加甲酸(F组)显著提高水溶性碳水化合物含量(P<0.05),降低氨态氮/总氮值,但一定程度上抑制乳酸发酵;纤维素酶组对水稻秸秆青贮发酵品质具有一定的改善效果;添加乳酸菌L组显著提高乳酸含量和乳酸/乙酸值(P<0.05),显著降低pH值、氨态氮/总氮值和乙酸含量(P<0.05),明显改善水稻秸秆青贮发酵品质;相对于L组,CL组并没有进一步改善青贮发酵品质。整个青贮过程中,F组始终显示最低的纤维素和半纤维素含量(P<0.05),C组和CL组纤维素和半纤维素含量显著低于对照组(P<0.05),CL组纤维素和半纤维素含量又低于C组(P>0.05)。[结论]甲酸对纤维素和半纤维素降解作用最为明显,乳酸菌和纤维素酶组合添加不但提高了发酵品质,还对纤维素和半纤维素具有较为明显的降解作用。
Abstract:
[Objectives]The objective of this study was to evaluate the effects of formic acid,cellulase and lactic acid bacteria on fermentation quality and structural carbohydrates degradation of rice straw silage. [Methods]The treatments were ensiled with:no additive control(CK);6 mL·kg-1 formic acid(F);0.5 g·kg-1 cellulase(C);1×106 CFU·g-1 lactic acid bacteria(L);C+L(CL),based on fresh matter. The silos from each treatment were opened on 6,15,30 and 60 d of ensiling,and then the fermentation quality and structural carbohydrates compositions of rice straw silage were analyzed. [Results]Compared with the control silage,addition of formic acid significantly increased water soluble carbohydrate content(P<0.05),and decreased ammonia nitrogen/total nitrogen(P<0.05),but the lactic acid fermentation was inhibited. Rice straw added with cellulase had an improvement effect on silage quality. L treatment obviously improved the fermentation quality of rice straw silage as indicated by higher lactic acid content and lactic acid/acetic acid(P<0.05),and lower pH,ammonia nitrogen/total nitrogen and acetic acid contents than those of the control silage(P<0.05). Compared with L silage,CL treatment did not further improve the fermentation quality. F treatment showed the lowest cellulose and hemicellulose contents during ensiling(P<0.05). C and CL treatment had lower cellulose and hemicellulose contents compared with CK(P<0.05),and CL silage had lower hemicellulose and cellulose contents than C silage(P>0.05). [Conclusions]The addition of formic acid was the most effective in degrading cellulose and hemicellulose,and cellulase combination of lactic acid bacteria not only improved fermentation quality,but also degraded cellulose and hemicellulose effectively.

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备注/Memo

备注/Memo:
收稿日期:2018-03-17。
基金项目:江苏省农业科技自主创新资金项目(CX(15)1003-3);农业部饲草栽培、加工与高效利用重点实验室资助项目
作者简介:赵金鹏,硕士研究生。
通信作者:邵涛,教授,研究方向为饲草调制加工与高效利用,E-mail:taoshaolan@163.com。
更新日期/Last Update: 1900-01-01