热研5号柱花草营养价值动态评价

Dynamic Evaluation of Nu trition Values of Stylosanthes guianensis cv.Reyan No.5

以热研5号柱花草(Stylosanthesguianensiscv.ReyanNo.5)为材料,用常规分析法测定各月营养成分,分析比较营养价值及其动态变化。结果表明:随着热研5号柱花草生育期的延长,其粗蛋白(CP)的含量降低,而粗纤维(CF)的含量却升高;其营养成分含量呈现动态变化即阶段性下降趋势;热研5号柱花草最佳适宜利用期为4～6月营养生长初期,在6～7月营养生长量最高。

Changes of main nutrient composition and dynamic nutrition values of Sty losan thes guianensis cv.Reyan No.5were evaluated.The re sults in di cated that crude pro tein content of S.guianensis cv.Reyan No.5decreased with growing time,but the crude fiber con tent in creased with growing time.The changes of nu trition values were dynamical and also decreased with growing time.Nutrition values of the leaf were higher than the stem and the whole plant.Suitable use time as fine legume feed was in the begin ning of vegeta tive growth.The nutrition values were the highest in June to July ev ery year.