Physiological cycle of sheep and how long does it take to breed lambs?

Estrus cycle is 18 ~ 20 days; The gestation period is 146 ~ 150 days.

Take the female goat as an example, it has obvious estrus symptoms such as singing and wagging its tail. Estrus duration 1 ~ 2 days, estrous cycle 18 ~ 20 days. Most breeds mate in autumn and winter. However, some varieties, especially those distributed in low latitudes, can be in estrus all the year round, with three births every two years or two births every year, and the pregnancy period is 146 ~ 150 days. The lambing rate is above 150%, and the number of lambs in the first birth of ewes is more than one, and two or three lambs are often born after the second birth.

The lactation performance of ewes is good, the lactation period is 8 ~ 10 month, and the milk yield can reach 600 ~ 1200.0 kg. Under different conditions, milk production varies greatly from country to country. The highest personal milk production record is 3430 kg. The lambing rate of ewes is 170 ~ 180.0%, and the highest is 200 ~ 220.0%.

Extended data:

The requirements for raising sheep stipulate that:

1. When ewes give birth to lambs, it's best to let them produce by themselves. The main task of the midwife is to monitor the delivery situation and care for the newborn lamb. During normal delivery, first of all, wash the wool around the breasts and inside the hind legs of the ewe, and wash the breasts with warm water.

2. After the lambs are born, they all tear the umbilical cord by themselves. At this time, 5% tincture of iodine can be used to disinfect the torn part. If the lamb can't tear the umbilical cord by itself, touch the blood in the umbilical cord to the navel of the lamb for several times, and manually tear it at an appropriate position 3 ~ 4 cm away from the abdomen of the lamb for disinfection.

3. The amniotic membrane breaks water for 30 minutes. If the ewe is weak and the lamb has not yet given birth, it should be assisted immediately. Midwives should cut their fingernails short, polish them, disinfect their arms and apply lubricating oil so as to take corresponding measures to deal with dystocia.

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