Sheep are generally sexually mature from July to August, but at this time they are not suitable for breeding. In addition, aged sheep and sick sheep are not suitable for breeding. Only healthy sheep aged 1 to 7 years old are suitable for breeding. If the ram and the ewes are polycultured and freely mated, then the old and sick, sick and young sheep will become pregnant. This will not only seriously affect the treatment of old and weak sick ewes, but also result in a low survival rate of the lambs. Even if it survives, it grows slowly.
In addition, if male and female rams are freely mated, they will inevitably be inefficiently mated. Excessive repeated mating will cause the rams to consume too much energy, shorten the useful life, and cause waste. Therefore, it is not appropriate to mix male and female rams together and let them freely mate.