What are the prefixes for animal genders? I know the male version when describing gender of an animal or pet is 公，but I have no clue with the female version.
To be simple, male/female: 公/母、雄/雌  


  公鸡、母鸡；公狗、母狗; 公牛、母牛。
  雄鱼、雌鱼。