If a male is used for frequent breedings, a brucellosis test before each mating is probably impractical.
If a male is used for frequent breedings, a brucellosis test before each mating is probably impractical.
如果公犬是种公犬经常用于配种的话，在每次交配前都做布鲁氏菌病的检测是不太现实的。