Huai goat, how many months does it take to reach estrus? How many catties does a sheep in heat weigh?

It takes about three months to conceive a goat from infancy to estrus, but it is not recommended to breed at this time because the lamb's body is not yet mature.

Generally, the weight of primiparous ewes is 65%-70% of that of adult sheep.

Autumn and winter production

In September and June of 65438+ 10 every year, ewes are generally in estrus, and male goats have strong sexual desire. In addition, the weather is cool, the climate is suitable, the feed resources are rich, and the sheep are in good mood. Ewes that breed in autumn are in good health in winter.

1, strengthen nutrition

In autumn, sheep farmers should pay special attention to the nutrition of breeding rams in addition to strengthening the feeding management of adapted ewes to make them have good reproductive physique. After breeding begins, let the ram eat enough grass, and according to his physique, sexual desire and breeding task, supplement each head with beans, wheat bran, cakes and other concentrate 0.5 ~ 1 kg, bone meal10g, 2 ~ 3 eggs and salt15g, and feed more at night.

2. Disease prevention and control

Autumn is a season of frequent and popular diseases. Besides deworming sheep with levamisole or albendazole and vaccination to prevent infectious diseases, common diseases of goats should also be prevented. If you have a cold and cough, you can take it with perilla stem, mint and orange peel, add a little salt, or take it with gardenia and loquat leaves. Gastroenteritis can be taken by decocting Smilax glabra with water. In addition, the residual grass in the sheep shed should be removed frequently to keep the shed dry and clean. Disinfect regularly with 3% carbolic acid solution, 2% caustic soda solution or 2% formalin solution. Brush and wipe the sheep regularly to strengthen blood circulation and enhance disease resistance.

3. Suitable breeding time

It is necessary to master the estrus of ewes and breed them at the right time. Estrus of ewes is characterized by loss of appetite, uneasy singing, swelling of vulva flush, leucorrhea and frequent wagging of tail. The duration of estrus is 1 ~ 2 days. Ovulation begins 30 to 40 hours after estrus, so mating about 30 hours after estrus is the easiest way to get pregnant. Ewes mate smoothly, especially at the end of estrus, and they can get pregnant after one mating. In production practice, the method of twice mating is usually adopted, and the second mating is carried out at an interval of 12 hours after the first mating, which can improve the conception rate of ewes.

4. Fetal protection

If the ewe is bred and conceived improperly, it will easily lead to premature delivery or abortion. It is forbidden to feed moldy, deteriorated and toxic forage grass; It is forbidden to drink ice water on an empty stomach; No running, scaring, jumping, etc. When grazing, especially when entering or leaving the fence or foraging, it is necessary to prevent mutual extrusion; For ewes with habitual or congenital abortion, it is advisable to inject veterinary anti-abortion needle solution at a certain time to prevent it.