How much is the ewe now? How to improve the lambing rate of captive ewes? What about a miscarriage?

Sheep, also known as sheep or white sheep, are hairy four-legged ruminants. It is not only one of the livestock widely raised, but also one of the breeding projects with broad prospects. How much is the ewe? How to improve the lambing rate of captive ewes? What about a miscarriage? From the livestock trading market in Duange Township, Huidong County, Liangshan Prefecture, Sichuan Province, the price of mountain ewes is about 20 yuan / kg, empty ewes are about 1300 yuan, and pregnant ewes are about 1500 yuan.

How to improve the lambing rate of captive ewes?

1. Increase the body weight before mating

Ewe weight before mating is closely related to fecundity. For every 5 kg increase in mating weight, the double lamb rate can be increased by 9%. According to the tests of relevant units, ewes with less than 40 kilograms before mating have a conception rate of 68 percent and all give birth to a single lamb; if they weigh more than 40 kilograms, the conception rate is 73 percent, 100 percent, and the lambing rate is 100 percent.

2. Exogenous hormone injection

When ewes are injected with protuberant during estrus, one milliliter of twin lambs is injected into each sheep, which can increase the probability of giving birth to twin lambs by more than 50%, especially for ewes with low degree of improvement.

3. Improve the nutrition of male and ewe.

The nutritional status has a great influence on the fecundity of sheep. Keeping ewes in medium fat condition throughout the year can make their development normal. Therefore, it is necessary to strengthen the feeding and management of ewes to meet their needs for various nutrients. On this basis, short-term optimal feeding should be carried out for ewes before mating, which not only ensures normal estrus, but also increases the number of ovulation and high twin rate.

The nutrition level of breeder ram has a great influence on the conception rate and lambing rate of ewe. For this reason, in the sheep breeding season, in order to strengthen the breeding of rams, it is best to feed them with full-price feed, which has high libido, high ejaculation, high sperm density and strong motility, and the eggs excreted by ewes are easy to be fertilized and the twin rate is also high.

4. Choose more lambs to breed sheep

The lambing number of ewes is also related to heredity. The practice shows that the lambing rate of ewes with three or four lambs at birth is the highest, that of ewes with two lambs is the second, and that of ewes with one lamb is the lowest. Therefore, it is necessary to keep more lambs for breeding.

5. Using multiple insemination.

Timely multiple insemination is one of the ways to promote the fertility of one child and improve the reproduction rate. Sperm survive in the womb of ewes for about 9 hours. if ewes ovulate two or three eggs, not at the same time, in order to fertilize all the eggs, they can inseminate many times in the middle and end of estrus, which can increase the conception rate. In production practice, repeated matching, double matching, mixed semen insemination and other methods are often used. Active artificial insemination can give full play to the role of excellent breeding ram.

How to do ewe miscarriage?

The main results are as follows: 1. The causes of ewe abortion are very complicated. Belong to infectious abortion, more common in brucellosis, campylobacter disease, trichomoniasis. Non-infectious, can be seen in uterine deformities, placental necrosis, fetal inflammation and polyhydramnios; medical diseases, such as pneumonia, nephritis, poisonous plant poisoning, salt poisoning, surgical diseases, such as trauma, cellulitis, septicemia and so on. Overcrowded long-distance transportation, uneven supply of aquatic plants, and feeding frozen and moldy feed can also lead to miscarriage.

2. In patients with sudden abortion, there are generally no characteristics before delivery. Slow onset, poor mental performance, loss of appetite, abdominal pain, baa, vaginal discharge of amniotic fluid, waiting for the fetus to be slightly quiet. If the cause is the same in the same group, miscarriages will occur one after another and will not be stable until the abortions of the affected ewes are completed. Traumatic disease can cause recessive abortion in sheep, that is, the fetus does not expel from the body, the dissolved matter is excreted out of the uterus, or the fetal bone remains in the uterus. Due to the different degree of trauma, the injured fetus is often due to fetal membrane bleeding and peeling off. Excreted in hours or days.

3. To strengthen feeding and management, pay attention to the prevention and treatment of infectious diseases, and take effective prevention and health care measures according to the causes of abortion. For ewes that have discharged less than full-term or dead fetuses, a material wealth does not need special treatment, but it is necessary to strengthen feeding.

4. The treatment of ewe abortion with sheep immune peptide (British Kainuo) combined with drugs is very effective, the treatment scheme: immune peptide + concanavalin + cephalosporin, continuous use for 2-3 days.

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