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在高温高湿条件下 ,饲用杂交高粱和苏丹草长势良好。饲用杂交高粱在株高 1.0～ 1.5m高时鲜草产量可达 375 0 0 kg/ hm2 ,茎叶比为 1:0 .92 ,可利用产量为 1776 7.5 kg/ hm2 。苏丹草鲜草产量为 185 0 0 kg/ hm2 ,茎叶比为 1∶ 0 .4 0 ,可利用鲜草产量 74 0 0 kg/ hm2 。草鱼对饲用杂交高粱和苏丹草的采食率分别为 36 .5 6 %和 34.5 2 % ,摄食量分别为 6 .14 g/天条和 6 .4 5g/天条。试验证明 HCN对草鱼无毒副作用 ,其含量随着生长高度的增加而下降
Under high temperature and humidity conditions, forage sorghum and sudangrass grew well. The forage hybrid rice sorghum yield reached 375 0 0 kg / hm 2 at the plant height of 1.0-1.5 m, the stem-leaf ratio was 1: 0.92, and the available yield was 1776.5 kg / hm 2. The yield of fresh grass in Sudan grass is 185 0 0 kg / hm2, and the ratio of stems and leaves is 1: 0. 40. The yield of fresh grass can be 74 0 0 kg / hm2. The feed intake of grass carp to forage hybrid sorghum and sudangrass were 36.56% and 34.5 2%, respectively, and their feed intake was 6.14 g / day and 6.45 g / day respectively. The test proves that HCN has no toxic side effects on grass carp and its content decreases with the increase of growth height