Generally, ewes can start mating after 4-6 months of birth (3 months for some ewes and 6-7 months for small-tailed Han sheep), and the specific mating time depends on whether their sexual function is mature or not.
According to the different lambing periods, it can be roughly divided into "lambing in winter", "lambing in spring", "lambing in autumn" and lambing in scattered seasons.
Generally speaking, ewes breed in August-September and give birth to lambs in 65438+ October-February of the following year, which is called "winter lamb"; Ewes breed in 10- 1 1 month and give birth to lambs in March-April of the following year, which is called "spring lamb"; Breeding in early summer will give birth to lambs in autumn, which is called "autumn lamb"; Breeding at other scattered times, then, the lambing time can not be determined, which is called four seasons scattered lambing.