体外产气法与尼龙袋法评定粗饲料干物质降解率的相关性分析

为寻求可在实验室条件下简单地评定饲料降解性能的方法,试验以玉米秸秆及不同尿素、石灰比例复合处理的玉米秸秆为发酵底物,对饲料体外产气量和尼龙袋瘤胃干物质降解率作了相关性分析。统计分析表明,体外产气量与体内干物质降解率呈高度正相关,相关系数分别为:对照组0.967、料A0.964、料B0.999和料C0.994。结果证明,在对饲料降解性能及潜在可降解能力作快速、定性判断时,体外产气法可以代替尼龙袋法。

Correlation analysis between vitro gas production and nylon bag technique for evaluating the degradation rate of roughage

In order to search for simply feed degradation assessment methods on the laboratory conditions, the experiments was designed to analyse correlation between vitro gas production and nylon bag Technique for evaluating the degradation rate of dry matter, the test used corn stalks and corn stalk which was dealed with different proportion of urea and lime as fermentation substrate.Statistical analysis showed that, positively pertinence between gas production in vitro and degradation rate of dry matter in body, t...