农业环境科学学报2009，Vol.28Issue(10)：2185-2188,4.
两株侧耳属真菌对小麦秸秆化学组分及瘤胃消化率的影响
Effects of Two Species of Pleurotus on Chemical Composition and Rumen Digestibility of Wheat Straw
摘要
Abstract
Wheat straw is characterized by its contents of high lignin and low crude proteins, suggesting that the straw limit its utilization as animal feedstuff. The present study was conducted to investigate effects of two fungal strains, JG1( Pleurotus Cornucopias Roll) and Tf1(Pleu-rotus sajor-caju), on cell wall constituent, rumen digestibility and crude protein contents of the wheat straw after the substrate had been treated by solid state fermentation. The fermentation of the straw was carried out for 21 days in the presence of either JG1, Tf1 solely, or com-bination of Tf1+JG1. It has been discovered that the degradation rates of lignin increased by 28.20%, 30.78% and 38.41%, respectively, while the degradation rates of cellulose enhanced by 19.26%, 19.28% and 26.65%, respectively, for the 3 treatments, as compared with the controls. In addition, the 48 h rumen dry matter digestibilities were found to be 38.62%, 44.81% and 55.89% greater than the controls; the rumen neutral detergent fiber digestibilities were discovered to be 38.91%, 49.00% and 63.08% higher than the controls, while the crude pro-tein contents were 58.60%, 69.53% and 72.22% more than the controls, respectively, for the three corresponding treatments. The results mentioned above showed that both species of Pleurotus, JG1, and Tf1 are capable of degradating selectively lignin, improving rumen di-gestibility and increasing crude protein contents in the wheat straw studied. Due to the fact that treatment 3 with a mixture of two species of Pleurotus was obviously characterized by its stronger degradation rates of lignin, higher rumen digestibility and contents of crude proteins than other two treatments, it was likely concluded that there was a synergistic effect on lignin degradation, rumen digestibility and crude protein for the treatment with a combination of JG1+Tf1.关键词
侧耳属/固态发酵/小麦秸秆/细胞壁化学组分/粗蛋白/瘤胃消化率Key words
Pleurotus/ solid state fermentation/ wheat straw/ cell wall constituent/ crude proteins/ rumen digestibility分类
资源环境引用本文复制引用
张洪生,梁军锋,张克强,陈秀为,赵润,张金凤..两株侧耳属真菌对小麦秸秆化学组分及瘤胃消化率的影响[J].农业环境科学学报,2009,28(10):2185-2188,4.基金项目
农业部农业结构调整重大技术研究专项项目(D-07-02B) （D-07-02B）
