动物营养学报Issue(2)：655-662,8.DOI:10.3969/j.issn.1006-267x.2015.02.039
贮藏时间对沙柳混合发酵饲料营养成分及体外消化率的影响
Effects of Storage Time on the Nutrient Composition and in Vitro Digestibility in Salix Mixed Fermentation Feed
摘要
Abstract
This experiment was conducted to study the effects of storage time on the nutrient composition and in vitro digestibility in salix mixed fermentation feed, in order to provide a new ways for better utilization of salix. In this experiment, according to the different proportion of salix (36.44% and 67.08%), two groups of mixed fermentation feed were made, represented by FF1 and FF2, respectively. Each group added the same number of compound bacteria preparation. The variation law of nutrient composition and in vitro digestibility of salix mixed fermentation feed at different storage periods of 1, 3, 5, 7, 10, 12, 15, 22, 30, 45 and 60 days were analyzed. The results showed as follows:1) with the extension of storage time, the contents of dry matter (DM), organic matter ( OM) and water soluble carbohydrate ( WSC) were significantly decreased ( P<0.05) , and the contents of neutral detergent fiber ( NDF) , acid detergent fiber ( ADF) and acid detergent lig-nin (ADL) were significantly decreased (P<0.05); the content of ether extract (EE) was significantly in-creased ( P<0.05);the content of crude protein ( CP) was increased during storage, but the difference was no significant (P>0.05). 2) With the extension of storage time, the in vitro digestibilities of DM, OM, CP, NDF and ADF were significantly increased ( P<0.05) . The nutrient component in vitro digestibility had signifi-cant difference between the two groups ( P<0.05) . In conclusion, according to the two kinds of fermented feed formulation of adding different proportions of salix, the nutritional value of salix mixed fermentation feed is in-crease with different storage periods. Comprehensive indicators, salix mixed fermentation feed gradually stabi-lize after 30 days, and FF1 nutritional quality is superior to FF2.关键词
沙柳/贮藏时间/混合发酵饲料/营养成分/体外消化率Key words
salix/storage time/mixed fermentation feed/nutrient component/in vitro digestibility分类
农业科技引用本文复制引用
李满双,薛树媛,郭天龙,王超,金海..贮藏时间对沙柳混合发酵饲料营养成分及体外消化率的影响[J].动物营养学报,2015,(2):655-662,8.基金项目
农业部国家现代肉羊产业技术体系( CARS-39) （ CARS-39）
公益性行业(农业)科研专项经费项目“牧区饲草饲料资源开发利用技术研究与示范”(201203042) （农业）
