3) pen requirements
圈栏需要量
4) pen dirtiness
圈栏污染程度
1.
In this paper,many factors including environmental factors(temperature,humidity,light,air current and pad- ding),management factors(training,feeding)and layout of a pen(proportion,shape and partition type)affecting elimi- nation area preference and pen dirtiness of domestic pigs are discussed.
在生产管理中,避免饲养密度过大;通过通风系统控制圈栏内的温度以及空气污染;转群时进行调教,喂料有规律并对疾病进行及时诊断和治疗,都能降低圈栏污染程度,以实现真正意义的清洁生产。
5) size and shape of pen
圈栏面积与形状
6) The sheep were surrounded by stockade.
羊被栅栏圈着。
补充资料：猪栏
1.亦作"猪阑"。 2.即猪圈。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条