高温分解与乳酸菌分步发酵提高秸秆饲料消化率及适口性

以提高秸秆饲料的消化率和适口性为目的，该研究1）以干玉米秸秆为材料，接种木质纤维素分解菌复合系WDC2，进行高温分解发酵；2）以乳酸菌复合系SFC-2为接种物，进行乳酸菌液体发酵；3）将乳酸菌发酵液以质量体积比1∶1比例均匀喷洒到发酵秸秆中，制备发酵秸秆饲料。该研究从营养学和分子生态学角度探讨了高温分解与乳酸菌分步发酵提高秸秆饲料消化率和及适口性的可行性。结果表明，经高温分解发酵，秸秆中微生物多样性丰富，不含致病菌。以南阳黄牛为研究对象，秸秆的干物质、中性洗涤纤维和酸性洗涤纤维体外消化率分别提高了13.94%、22.56%和21.12%，采食量提高21.71%；部分分解的秸秆经乳酸菌发酵液吸附...

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Published in农业工程学报 Vol. 30; no. 22; pp. 290 - 299
Main Author 刘晶晶 刘小平 师建芳 王小芬 袁旭峰 崔宗均
Format Journal Article
LanguageChinese
Published 中国农业大学农学与生物技术学院,北京,100193%山东省金乡县农业局植保站,金乡,272200%农业部规划设计研究院农产品加工工程研究所,北京,100125 2014
Subjects
乳酸菌
半纤维素
发酵
木质纤维素分解
消化率
温度
秸秆
秸秆
半纤维素
straw
lactic acid bacteria
发酵
温度
lignocellulose decomposition
temperature
fermentation
hemicellusose
消化率
digestibility
木质纤维素分解
乳酸菌
Online AccessGet full text
ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2014.22.036

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Summary:以提高秸秆饲料的消化率和适口性为目的，该研究1）以干玉米秸秆为材料，接种木质纤维素分解菌复合系WDC2，进行高温分解发酵；2）以乳酸菌复合系SFC-2为接种物，进行乳酸菌液体发酵；3）将乳酸菌发酵液以质量体积比1∶1比例均匀喷洒到发酵秸秆中，制备发酵秸秆饲料。该研究从营养学和分子生态学角度探讨了高温分解与乳酸菌分步发酵提高秸秆饲料消化率和及适口性的可行性。结果表明，经高温分解发酵，秸秆中微生物多样性丰富，不含致病菌。以南阳黄牛为研究对象，秸秆的干物质、中性洗涤纤维和酸性洗涤纤维体外消化率分别提高了13.94%、22.56%和21.12%，采食量提高21.71%；部分分解的秸秆经乳酸菌发酵液吸附后，粗蛋白增加36.17%。秸秆的高温分解发酵与乳酸菌的乳酸发酵相结合的饲料制作工艺，即提高了秸秆的消化率和营养价值，也改善了秸秆的适口性。
Bibliography:11-2047/S
straw;fermentation;temperature;lignocellulose decomposition;hemicellusose;digestibility;lactic acid bacteria
Liu Jingjing, Liu Xiaoping, Shi Jianfang, Wang Xiaofen, Yuan Xufeng, Cui Zongjun （1. College of Agriculture and Biotechnology, China Agricultural University, Beijing 100193, China; 2. Agricultural Bureau Plant Protecting Station, Jinxiang 272200, China; 3. China Institute of Agricultural Product Processing Engineering, Chinese Academy of Agricultural Engineering, Beijing 100125, China）
In China, about 7.0×10^8 t of crop straws may be collected annually, and the amount suitable for converting to feed was approximately accounted for 85.67%. However, low digestibility and protein content prevent its use in feedlots, much of these materials were disposed by burning, which resulted in environmental pollution. A matrix formed by lignin and hemicellulose surrounds the orderly cellulose microfibrils and reduces their digestibility. The breakdown of the bonds between lignin and cellulose is the key to tr
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.22.036