“多穗狼尾草”(Pennisetum polystachyon)是较优良的牧草品种。我们对该品种的营养成分在肉牛体内的消化率及其饲养效果进行了试验。结果是: 1.试验期里所取草料、粪和尿样的成分分析结果列于表1。 2.“多穗狼尾草”有关营养成分在肉牛体内的表观消化率为:干物质63％,粗蛋白68.8％,粗纤维66.03％,粗脂肪63.16％,无氮浸出物62.55％,钙57.75％,磷38.65％,能量利用率62.51％,每公斤干物质含消化能2.77兆卡。 “Pennisetum polystachyon” is a better forage species. We tested the nutritional content of the breed in cattle and its feeding effect. The results are: 1. The composition of the forage, feces and urine samples taken during the test period are summarized in Table 1. The apparent digestibility of nutritional components in beef cattle was as follows: dry matter 63%, crude protein 68.8%, crude fiber 66.03%, crude fat 63.16%, nitrogen-free extract 62.55%, calcium 57.75% phosphorus 38.65%, energy utilization rate of 62.51%, per kilogram of dry matter digestible energy 2.77 trillion.