养牛、马、驴、骡第五十六《礼记·月今》:“仲夏之月……游牝别群,则絷腾驹。”(孕任欲止,为其牡气有余,恐相蹄啮也。) 1.牡气:《要术》各版本及《农政全书》引,均作“牝气”。缪本校记:“按此指怀妊母马恐被牡马所伤害,‘牝’字显系‘牡’字之误,兹据《月令》郑注改正”。石本校记:“‘牝气’,指牡马发情后的冲动;应当是‘牡’字。但为了《要术》的传抄真象,暂仍保存‘牝’字”。按:牝马的性周期为21—22日。发情持续3—7日。牡马的发情是受牝马发情的诱引,已孕母马不再发情,虽与牡马同群,牡马亦不发情。季春之月,游牝于牧,到季夏之月,游 Cattle, horses, donkeys, mules Fifty-sixth “Book of Rites month”: “Midsummer month ... Tour 牝 other groups, then 絷 Teng Ju.” Phase hoofed also.) 1. Mousy: “To surgery” version and “Agriculture”, cited as “belching.” Miao Benzhen Kee: “Click here to refer to the fear of pregnant mares are hurt by the horse, ’牝’ word is the word ’Mudan’ mistake, according to the” order “Zheng note correct. Shishi this school: ”’belching’ refers to the impulse after the horse estrus; should be ’Mu’ word, but in order to“ surgery ”copy of the truth, temporarily save the word“ 牝. ” Press: 牝 Horse’s sexual cycle is 21-22 days. Estrus lasts 3-7 days. The horse’s estrus is induced by the penguin’s estrus, pregnant mares no longer estrus, although with the same group of horses, the pony is not estrus. Quarter of spring, tour 牝 in the animal husbandry, to the summer months, travel