藏东南河谷型绵羊舍饲和放牧行为的观察

通过对藏东南河谷型绵羊放牧行为的观察发现，全天放牧时间450min，其中游走68min，占15.22%；采食328min，占75.1%，休息36min，占8.35%。对藏东南河谷绵羊舍饲行为观察结果表明，昼夜24h中，采食293.8min，占20.4%；反刍398.0min，占27.6%；站立290.9min，占20.2%，卧息453.6min，占31.5%，饮水4.3min，占0.3%。在放牧条件下，用计数法人三测得绵羊的采食量为2.79kg，在舍饲条件下，日采食量为5.4kg，折算成风干物质分别为0.47和0.92kg，风干物质分别占活重的1.74%和3.41%。

Behavior Observation of the Southeast Tibet Sheep of River Valley Type in the Conditions of House Feeding and Grazing

It was by abservation found that the southeast Tibet sheep of river valley type grazed for 450 min in a full day, of which, walking for 68 min. accounted 15.22%; feed intaking 328 min, 75%; resting 36 min, 8.35% in grazing condition, and feed inteking 293.8, 20.4%; raminating 398.8, 27.6%; standing 290.9, 20.2%; sleeping 453.6, 31.5%; drinking 4.3, 0.3% in house feeding. The estimated feed intake by numbering was 2.79 kg and 5.4 kg for grazing and house feeding respectively, the air dry matter is 0.47 kg and 0.92 kg, and amount to 1.74% and 3.41% of the liveweight.