晋牧1号在南方红壤区的产草量·营养价值及饲养效果研究

Study on the Grass Yield,Nutritive Value and Feeding Effect of Jinmu No.1 in Red Soil Region of Southern China

[目的]探索南方红壤区高丹草用做青饲料的可能性。[方法]研究了晋牧1号高丹草在南方红壤区的产草量、营养成分及各营养成分的表观消化率,并进行了山羊的饲养试验,研究晋牧1号的饲喂效果。[结果]晋牧1号高丹草的干草产量为21.02 t/hm^2,植株粗蛋白含量为12.2%,干物质消化率为84.5%。利用高丹草饲喂山羊,添加一定量的精料能显著提高其增重效果和经济效益,适宜的精料添加量占总干物质采食量的30%左右。[结论]晋牧1号高丹草作为青饲料饲喂山羊,其饲料品质及饲喂效果优于象草,应在南方红壤区大力推广种植。

[Objective]The research aimed to discuss the feasibility of Sorghum bicolor L.as green forage in red soil regions of southern China.[Method]The grass yield,nutritive value and apparent digestion rate of nutrients of S.bicolor Jinmu1in red soil regions of southern China were studied.The feeding trial on goat was carried out and the feeding effects of Jinmu No.1were studied.[Result]The hay yield of Jinmu No.1 was 21.02t/hm2,the crude protein content in the plants was 12.2%,and dry matter’s digestion rate was 84.5%.When the test goats were fed with S.bicolor,adding some amount of concentrate could increase the weight gain effects and economic benefits.The appropriate adding proportion of concentrate in total dry matter’s intake was about 30%.[Conclusion]The feed quality and feeding effects of Jinmu No.1as green forage were better than that of Pennisetum purpureum,so it should be popularized to be planted in red soil regions of southern China.