中国畜牧兽医2017，Vol.44Issue(5)：1355-1362,8.DOI:10.16431/j.cnki.1671-7236.2017.05.014
应用CNCPS方法和体外产气法研究豆腐渣饲料的营养价值
Evaluation of the Nutritional Value of Soybean Curb Residues by Cornell Net Carbohydrate and Protein System and Gas Production Technique
摘要
Abstract
The experiment was performed to evaluate the feed value of soybean curb residues by Cornell net carbohydrate and protein system (CNCPS)and in vitro gas production technique. Common nutrient and fermentation parameter of soybean curb residues were determined,and the carbohydrate (CHO)and crude protein (CP)components were calculated respectively according to the CNCPS method.The results showed that CP content of soybean curb residues was 14％ to 25％,EE content was 1.9％ to 2.9％,and metabolic energy was 10 to 12 MJ/kg DM.Rapidly degraded protein (PA+PB1 )and slowly degraded protein (PB2 +PB3 )nearly were the same lev-el,and bound protein (PC)was less.Potential available CHO (CA+CB1 +CB2 )was high.The gas production reached 70 mL,NH 3-N content was 8 to 23 mg/dL,TVFA content was 46 to 70 mmol/L.There were significant differences in nutrient components and fermentation situation between soybean curb residues.The highest gas production(B)of Lingyuan soybean curb resi-dues was the highest which was extremely significantly higher than others (P <0.01),and there was no significant difference between the gas generation rate (C)among 4 kinds of samples (P >0.05).Liaoyuan soybean curb residues had the highest NH 3-N content,which was extremely sig-nificantly higher than the others (P <0.01 ),and there were extremely significant difference in VFA among 4 kinds of soybean curb residues (P <0.01).TDN and other energy value had obvi-ously difference between soybean curb residues from different places,and Xinmin soybean curb residues had the lowest energy value that was extremely significantly lower than others (P <0.01).The results indicated that as a ruminant non-grain feed,soybean curb residues had high available energy and beneficial for protein synthesis of rumen microorganisms.关键词
豆腐渣/CNCPS/营养价值/能量价值/体外发酵Key words
soybean curb residues/CNCPS/nutritive value/energy value/in vitro fermentation分类
农业科技引用本文复制引用
李岩,孟庆翔,陈万宝,刘畅,周振明..应用CNCPS方法和体外产气法研究豆腐渣饲料的营养价值[J].中国畜牧兽医,2017,44(5):1355-1362,8.基金项目
国家自然科学基金面上项目(31372335) （31372335）
国家肉牛牦牛产业技术体系项目(CARS-38) （CARS-38）
公益性行业(农业)科研专项经费项目(201503134) （农业）
