How to improve lambing yield of ewes? What season produces the best lambs? How to deal with postpartum?

Sheep is also known as sheep or Aries. Hairy four-legged ruminant. Originally a product of the mountains of the Northern Hemisphere, males have spiral horns, while females have no horns or only small horns. So how to increase the lambing yield of ewes? Which season produces the best lambs? How to deal with postpartum?

How to increase the lambing yield of ewes?

1. Do a good job of variety breeding. Fecundity is hereditary, and different varieties have different fecundity. In order to improve fecundity, prolific characteristics must be introduced into crossbreeding, or prolific variation must be selected to fundamentally improve the production performance of sheep, and at the same time establish and improve the breeding registration system and improved breed breeding system.

2. Select good breed sheep. Good breeding sheep are in good condition, energetic, short and round neck, strong physique, rectangular body, deep chest, straight back, wide and plump buttocks, moderate size and left-right symmetry of testis, far from the base of scrotum and good semen quality. Sheep with single testes, cryptorchidism and any deformed reproductive organs can not be used for breeding. The breeding ewe should choose large, compact, full muscle, elastic skin, deep chest, straight back, slightly larger rear abdomen, upright limbs, wide spacing, fast growth and development, high meat production rate, more lambs, soft and spherical breasts, good lactation performance, agile, lively action, brisk walking, high head, shiny coat color.

3. Optimize the herd structure. Female goats are generally no more than 6 ~ 8 years old, and the overall structure ratio of sheep is 47% of fertile ewes, 50% of reserve ewes and sheep born in the same year, and 3% of breeding rams. In addition, in addition to changing the breeding ram once a year to prevent inbreeding, it is also necessary to strengthen the elimination of old sheep, sick sheep, weak sheep and perennial infertile sheep, so as to ensure that appropriate-age sheep account for more than 70% of the total number of sheep, so that stable and high yields can be achieved.

4. Strengthen the feeding and management. In winter, most ewes are in the late stage of pregnancy, coupled with the cold climate, so grazing should be safe, the amount of exercise is appropriate, farmers with conditions should appropriately supplement some high-quality hay and concentrate.

Which season produces the best lambs?

1. Spring is the season in which lambing is concentrated, but due to the influence of temperature in early spring and many other factors, it is difficult to guarantee the survival rate of lambs. Therefore, the majority of sheep farmers do a good job in the delivery and lambing of ewes and the management of lambs, which plays an important role in maintaining the health of ewes, improving the survival rate of lambs and promoting the healthy growth of lambs.

two。 Signs of delivery of ewes there are four main changes in ewes approaching delivery. One is the change of the breast: a small amount of clear gelatinous liquid can be extruded from the nipple, or a small amount of colostrum, the nipple becomes thicker and thicker. The second is the change of the vulva: the labia is gradually soft, swollen and enlarged, the wrinkle wall on the labia skin unfolds, and the skin becomes slightly red. Vaginal mucosa flushed, mucus changed from thick and sticky to thin and smooth, and frequent urination. The third is the change of the pelvis: the pubic symphysis of the pelvis, the joint and the ligaments on both sides of the pelvis are more active, and the fossa is obviously sunken. Hold the tail root with your hand and move up and down, feeling that the upward movement of the sacrum increases. The fourth is the change of behavior: the ewe is restless, loss of appetite, lying in the abdomen from time to time, constantly blaming and whining, and the obvious subsidence of the abdomen is a typical sign of labor, which should be sent to the delivery room immediately.

How to deal with ewes after delivery?

Postpartum ewes should pay attention to keep warm, prevent moisture, avoid wind, prevent colds, and keep quiet and rest. Postpartum should be given a few days before the quality, easy to digest feed, the amount should not be too much, after three days the feed can be changed to normal. After the lamb is born, the lamb should be fed colostrum as soon as possible. Thin lambs or newborn ewes, as well as ewes with poor babysitting, need artificial lactation. If the ewe is sick or there is not enough milk for more than one child, you should find a babysitter to replace the milk. Some ewes often have some diseases soon after the birth of newborn lambs due to genetic, immune, nutrition, environmental and other factors, as well as whether the birth is smooth or not. Therefore, preventive measures should be taken actively, such as making a good choice of males and ewes during mating, strengthening the feeding and management of ewes during pregnancy, paying attention to the environmental hygiene of the barn and the individual hygiene of lambs, so as to reduce the occurrence of diseases and improve the reproductive survival rate of lambs.