考湖杂种绵羊舍饲和放牧行为的观察

在亚热带洞庭湖区高温高湿条件下观察了10只考湖杂种绵羊的舍饲和放牧行为,结果表明:(1)采食、反刍、站立和卧息时间分别占24.47％;28.54％:31.52％和15.50％。(2)在24h之内,采食频率和采食量出现2个高峰。(3)舍饲平均日采鲜草8.76kg,折风干物质1.14kg,占羊只平均体重3.82％。(4)在放牧条件下用口罩法和计数法所测出的鲜草日采食量接近,前者为4.92kg,后者为4.94kg。

HOUSED AND GRAZING BEHAVIOUR OF KAOHU CROSSBRED SHEEP

Ten Kaohu crossbred sheep were observed under high ambient temperature and humitity of Tongtin Lake area. The time ratio for food intake, ruminating, standing and lying were 24.47%, 28.54%, 31.52%, and 15.50% in 24 hours respectively. There were two peaks of food intake and intake frequencey. The dry matter intake of housed sheep was 1.139 kg/day,that was 3.82% of the body weight. The mask method and counting method were used to measure grazing feed intake. The results were 4.92 and 4.94kg/day respectively.