When selecting a stud dog for breeding, the breeder must study the structure and the reproductive record of the stud dog's dam.
当挑一只种母做繁殖的时候，繁殖者必须懂得种狗母亲的结构和生殖记录。
2
Article 15 any animal farm should exterminate animal epidemics in time. Stud stock and breeding poultry shall be kept healthy up to the standards set by the state.
第十五条动物饲养场应当及时扑灭动物疫病。种畜、种禽应当达到国家规定的健康合格标准。
3
Stud stock and breeding poultry shall be kept healthy up to the standards set by the state.