The choice of breeding season The timing of the mutton sheep breeding is mainly based on the time when lamb production is most conducive to the survival of the lamb and the mother and son's fitness. The summer weather is hot, the ram's libido is weakened, and the quality of the semen is reduced. In winter, the ewes have poor body condition and are not susceptible to heat or estrus. Most of the province’s choices are based on the practice of breeding only once a year, autumn breeding, that is, breeding from October to November every year, and lambing from March to April of the following year. The advantage of this breeding is that when ewes are pregnant, due to better nutritional conditions, the birth weight of lambs is relatively large, and after the lambs are weaned, they can eat green grass, which results in faster growth and development, and the first year of wintering and spring. Stronger ability. In addition to the autumn season, it is also possible to breed in the spring, that is, from April to May every year. At this time, breeding needs to store enough forage and feed in winter and prepare well-kept sheep houses.
Scientific breeding methods There are two breeding methods for mutton sheep, namely natural mating and artificial insemination. Natural mating is the most primitive method of raising sheep. It is to grazing the male and female sheep in the breeding season. It saves labor and does not require equipment. However, the use of this method has many adverse effects on the fecundity of the entire flock. Because of inbreeding and lack of understanding of the blood of the sheep, difficulties are encountered in the selection and selection of subsequent species, and many malformed fetuses are generated, directly reducing the number of sheep. The fertility of the herd. Artificial insemination can effectively improve the above shortcomings. It can expand the utilization rate of good rams, increase the conception rate of ewes, and greatly improve the herd's fecundity. If artificial insemination is not used, artificial assisted breeding may be used. The male and female ewes are grazing in groups, and the ewes are tested every day during the breeding season. Then, the ewes and the designated rams are mated, which is beneficial to the mutton sheep. Selection and matching.
Strengthen the level of management before and after childbirth The various utensils should be disinfected before delivery. The tail roots, vulva, anus, and udder of the ewes should be disinfected with a solution of 1% or less of potassium permanganate. After the lambs are produced, the umbilical cords are briefly placed 5 to 8 cm away from the umbilical fossa of the lambs and disinfected with iodine. If you have a dying lamb, you must promptly raise your hind legs, beat your back, or let it lie flat, and use your hands to pressurize your chest and let it revive. When dystocia occurs, artificial birth aid can be performed after checking the fetal position. Otherwise, a veterinarian is required to perform caesarean section. After the fetus output, it was allowed to eat colostrum in time, eat it early, train to graze, excrete meconium and enhance gastrointestinal motility. Newborn lambs are less resistant and need more care. If the ewe's milk is insufficient, artificial nursing or sheep shedding shall be adopted in time.
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