新疆农业科学2012，Vol.49Issue(5)：945-949,5.DOI:10.6048/j.issn.1001-4330.2012.05.027
化学及高温发酵处理对棉花秸秆消化性的影响
Effect of Chemical and Thermophilic Fermentation on the Digestibility of Cotton Stalk
摘要
Abstract
[Objective] In this project, cotton stalk was used as the main materials to discuss the effects on nutrients and the improvement of digestibility by using chemical and thetmophilic fermentation. [Method] In the first trial, coarsely -crushed cotton stalk treated by adding Ca(0H)2,urea or Ca(0H)2 and urea mixture, respectively, was used to investigate the effect of chemical treatment on improving cotton stalk digestibility. In the next trial, the coarse or fine crushed cotton stalks went through thermophilic fermentation by adding 5% wheat bran, 3% Ca(0H)2,1.5% urea,l% calcium superphosphate and being inoculated with 9.5% previously fermented agent to observe the effect on improving nutrient content and in vitro dry matter digestibility. [Result] Ca(OH)2, Ca(OH)2 and urea mixed treatments significantly decreased the neutral detergent fiber (NDF) content of the treated cotton stalks (P ＜ 0. 05 ) , but did not significantly affect acid detergent fiber (ADF)and hemtcellulose content. Urea or Ca(OH)2 and urea mixed treatments significantly improved the crude protein (CP) content and in vitro dry matter digestibility compared with the untreated cotton stalk. Thermophilic fermentation increased the CP content and digestibility of both coarse and fine crushed cotton stalks(P ＜0. 01),but did no significantly affect other chemical contents. [Conclusion] Chemical treatment of the crushed cotton stalk with Ca( OH) 2 and urea mixture can increase the digestibility by 59.67% and the effect of the cotton stalk fodder by thermophilic fermentation was the best. Its CP content could reach 10.15% (P＜0.01)with 58.67% digestibility(P＜0.01).关键词
棉花秸秆/化学处理/高温发酵/消化率Key words
cotton stalk/chemical treatment/thermophilic fermentation/digestibility分类
农业科技引用本文复制引用
热沙来提汗·买买提,艾比布拉·伊马木,早热古丽·热合曼..化学及高温发酵处理对棉花秸秆消化性的影响[J].新疆农业科学,2012,49(5):945-949,5.基金项目
食用担子菌接种对棉花秸秆消化改善效果研究(2011-31060317) （2011-31060317）
