First, extensive use of modern breeding techniques. Sheep are singleton animals, and only one lamb is born per litter, and breeding according to traditional methods can not meet people's need for lamb production. Therefore, modern breeding technology has been widely applied to fat lamb production. Such as adjusting light to promote estrus early estrus, early mating, early weaning, induced childbirth, concentrated intensity fattening and other measures to better shorten the non-breeding period of the sheep. Achieve one or two fetuses a year. In particular, the use of estrus technology for the same period, so that the ewes at the same time estrus, unified breeding, can make large quantities of mutton production, so that a balanced listing, supply throughout the year. Second, the lamb was weaned early. The lambs were weaned early, then dewormed and forced to grow for 2-3 months. Minimize activities and light during the fattening period. There are two methods for early weaning of lambs: one is weaning at 3–4 days of age and transferred to dry feeding; the other is weaning at 45–50 days of age and switching to dry feeding. Because colostrum is rich in protein, fat, minerals and vitamins, especially containing magnesium ions and a variety of antibodies, it has a special role in promoting meconium excretion and enhancing the disease resistance of lambs, so early colostrum as a fattening The key stage is essential. Third, use artificial milk to raise lambs. Lamb can be divided into lambs larger than 12 months of age and lambs less than 12 months old by age. Among them, lambs of 4-6 months of age are also called fat lambs. Due to the fact that fat lamb meat is fresher and lighter than adult lamb, it has become more popular with consumers as the standard of living of people has increased in recent years, and the demand has increased. Fat lamb production mainly has the following characteristics: First, lambs grow fast, feed remuneration is high, and production costs are low. The 1-month-old lambs had the fastest weight gain. Their feed remuneration was 3:1-4:1, and the adult sheep was 6:1-8:1, and the feed could save nearly half. The second is that when the lamb was born that year, then fattened and slaughtered that year, it can increase the slaughter rate and shorten the production cycle. The economic benefits are obvious. The third is to engage in lamb production as an effective measure to adapt to the seasonal changes in forage grass, which can reduce the weight loss of sheep during the weedy season. Fourth, the lamb meat market has a large demand, good prices, and high prices. In some places, it is 1/3-1/2 higher than the adult lamb price, and lambskin is of good quality and high in price. Due to the best economic benefits and social benefits produced by fat lambs, countries all over the world are actively researching and vigorously developing fat lamb production. Fat lamb production is intensive, industrialized, and scaled. It can make full use of advanced technology and experience in production. Fourth, feeding fat lambs. After lambs were weaned for 56 days, each sheep was fed 3-5 kg ​​of grass and 0.5 kg of concentrate. 20 days after weaning, each sheep was fed 2.5 kg (80% hay powder and 20% concentrate) on each day of the sheep. The fat lamb weight increased from 37.4 kg to 47.2 kg, and the average daily weight gain was 173 g. Each weight gain was 1 Kilograms consume 8.2 kilograms of feed. Hungary uses large, double-layered, ground-floor hens to fatten lambs that can accommodate 3,000 to 5,000 lambs per house. The upper layer has a seam to facilitate the dropping of the droppings. A scraper conveyor is provided to transport the pelleted feed and a long-flowing drinking fountain. The lower deck is equipped with a scraper-type cleaning machine. The lambs were weaned 60-120 days after birth, and after 76 days of fattening, the average daily weight gain reached 230 grams. After fattening, the weight reached 34-40 kilograms and the slaughter rate was 47.6%. The Czech Republic used merino sheep and hybrid sheep to intensively fatten lambs. After birth, lambs are usually weaned 3 days after breastfeeding. They are fed artificial milk on the 4th day. After 18 days, they are fed with artificial milk and artificially cultivated pastures or mixed semen with grasses. When the intensity is reduced to 82 days, the lambs can be weighed. Up to 32-35 kg.
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