Effects of bacterial-enzyme synergistic fermentation on micro-storage quality and rumen degradation rate in mutton sheep of cotton straw
WANG Peng
ZHANG Ning
ZHANG Wenzhe
SONG Yimin
GAO Xingliang
WANG Xinfeng
SUN Xinwen
Abstract：The experiment aimed to investigate the effects of bacterial-enzyme synergistic fermentation on the micro-storage quality and rumen fermentation characteristics of the cotton straw.Cotton straw was selected as the test material and divided into four groups:Control group(group CK,no additives),group F(supplemented with 0.4％ferulic acid esterase),group LB(supplemented with 2.0％composite bacterial solution),and group LBF(supplemented with 0.4％ferulic acid esterase and 2.0％composite bacterial solution).After 30 days of fermentation,the micro-storage quality of the fermented straw silage was evaluated,and an in vitro gas production test was conducted.The results showed that compared with group CK,the crude protein(CP),lactic acid(LA)and propionic acid(PA)concentrations were significantly increased in groups LB and LBF(P＜0.05),while the concentrations of neutral detergent fiber(NDF),acid detergent fiber(ADF),and acid detergent lignin(ADL),and pH value were significantly decreased(P＜0.05).In the in vitro gas production test,the digestible organic matter(DOM)content and metabolic energy(ME)of group LBF were significantly higher than those in the other groups(P＜0.05),and the gas production at 24 and 48 hours was also higher than other groups.The total volatile fatty acid(TVFA)content in groups LB and LBF was significantly higher than that in the other groups(P＜0.05).The study indicates that bacterial-enzyme synergistic fermentation can effectively improve the micro-storage quality of cotton straw and enhance its in vitro fermentation efficiency.
Keywords：bacterial-enzyme synergisticfermented cotton strawfermentation qualitygas productionrumen degradation ratemutton sheep
Publication Date：2025-10-16
Online Publishing Date：2025-12-09(First online date of this platform, not the publication date of the document)
Pages：6( 1-6 )