loose housing [畜牧] 散放饲养 ; 散养圈舍 ; 散放牛舍建筑

loose housing system 散放牛舍

loose-housing system 散放牛舍管理方法

loose housing breeding 舍饲散养

loose housing yard 散饲畜圈

loose housing barn 散放舍饲

cattle loose housing 牛的散放饲养

loose housing structure 散饲畜舍建筑

A loose housing system 舍饲散养系统

loose face housing 散放饲养