引き離す

According to a research report, 8 weeks after birth is the better time to separate puppies from their mothers for sale as pets — dogs separated earlier than 7 weeks are more likely to develop behavioral problems afterward:

ペットショップなどで販売する子犬を生まれた環境から引き離すのは、生後7週目より8週目以降の方が問題行動を示す割合が減る。