他们是“检疫犬计划”的一部分。

They are part of the program called the Beagle Brigade.

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一些宠物店根据农业部的规定在商业犬舍购买幼犬，尽管这些小狗有些不健康而且缺乏社交教养。

There are some pet stores that buy their puppies from commercial kennels regulated by the Department of Agriculture. However, even these pups tend to be unhealthy and unsocialized.

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这一部分归咎于商业犬舍常常用一套繁育设施进行多种繁育，他们只注重数量而不注重质量。

This is partly due to the fact that commercial kennels tend to breed many different breeds in one facility and they breed for quantity, not quality.

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