Lamb is the main product in the sheep industry. All sheep, juvenile rams, mutton sheep and ewes that have lost reproductive ability should be culled and then slaughtered. After slaughtering sheep, the slaughter rate is high, meat is tender, and meat is produced at the same time, which can increase the income of raising sheep. Principle of fattening method The goal of fattening is to quickly increase the amount of meat and improve the quality of meat in a short period of time to produce high quality fur. The principle of fattening is to increase the accumulation of nutrients on the one hand, and reduce the consumption of nutrients on the other hand, so that the assimilation will largely exceed the effect of dissimilation in the short term, which makes the nutrients of ingestion in addition to maintaining life, there is a large amount of nutrients accumulated In the body, meat and fat are formed. Since the main raw materials constituting meat and fat are proteins, fats, and starches, it is necessary to put in a large amount of fine material at the time of fattening and feeding, and the fine material is sufficiently supplied within the limits that the fattened sheep can digest and absorb. The feeds that are most suitable for fattening of Small Tail Han sheep include beans, pancakes, clams, sorghum, corn, and sweet potatoes. There should be a preparatory period of 10-15 days before finishing. During this period, feed ingredients are gradually exchanged. Feeding methods are small meals to change the habits of the sheep. The fattening diet can be selected as appropriate according to the specific circumstances. In the mixture should add a small amount of salt, feed green feed or silage, can be appetizing. The fattening rams should be castrated. After castration, they can achieve better fattening and improve meat quality. Because the metabolic and oxidative effects of the body after castration are reduced, it is beneficial to the fat accumulation, and at the same time it can reduce the amount of feed consumed for every 1 kg of weight gain of finishing sheep. The length of the finishing period depends on the feeding level and fattening effect. Feeding fattening is usually 75-100 days, the fattening period is too short and the fattening effect is not significant, and the long feed pay is low. The fattening of the Small Tail Han sheep is divided into two kinds: sheep fattening and adult sheep fattening. At present, the old lambs are often used for fattening, and lambs that have been eliminated are used for fattening. With the increase in the amount of meat and the expansion of the flock, the fattening amount of the lamb is undoubtedly to be expanded. Whether it is fattening lambs or adult sheep, the nutrients supplied to the sheep must exceed the amount of nutrients it must maintain in order to accumulate muscle and fat in the body. The fattening lamb includes the growth process and the fattening process (fat accumulation). The weight gain of the lamb comes from the growth part and the fattening part. The growth is the increase of the muscle tissue and the bone, and the fattening is the increase of the fat. Muscle tissue is mainly protein, and bone marrow is composed of calcium and phosphorus. The increase in body weight of adult sheep is mainly an increase in fat, and there is no growth factor. Therefore, fattening lambs requires more protein than fattening adult sheep. In terms of fattening effect, fattening lambs is more beneficial than fattening adult lambs because lambs gain more weight than adult lambs. The significance of fattening lambs for lambs: Fat lamb production is a major development in the sheep industry and an effective measure to adapt to the seasonal changes in feed resources. The fat lamb is light, rich in flesh, less fat, fresh and juicy, and easy to digest. At the same time, the feed reward is high. At this time, the lamb grows most vigorously. Increased weight, low cost and extremely economical. The development of fat lamb production can not only speed up the production of lamb meat, but also increase the proportion of ewes in the herd and accelerate herd turnover. Utilize the resources of summer and autumn fodder for fattening and fattening and fat lamb production. However, slaughtering in the winter can save fodder and sheds, so that it can be used to keep pregnant ewes and reserve sheep for the winter, which is beneficial to the development of sheep production. way. Many of the properties of Small Tail Han sheep are in line with the needs of intensive lamb production, consistent with the development of international sheep breeds. Therefore, the Small Tail Han sheep is an excellent breed for fat lamb production, and it can achieve higher growth advantages and slaughter rate without using economic hybrids. We should pay great attention to and make use of this species of resources, and, wherever possible, carry out fat lamb production as far as possible to meet the needs of the society. Lamb finishing methods: The use of young sheep aged from 4 months to 10 months of age, fast growth, meat production, meat is not greasy, delicate, delicious features, after weaning to strengthen feeding and grazing, to make it grow fast and After fattening, the fattened lamb can reach 50-55 kg or more in weight from 8 months to 10 months of age, and the slaughter rate is over 54%. Lamb fattening is carried out under house-feeding conditions. In addition to good bean material and fresh and dried grass, the feed used for silage, rootstock feed, and processing by-products (such as lees, bean cakes, wonton skins, clams, slag, etc.) well. Autumn grazing can also be used in combination with supplementary feeding for fattening. The fattening of adult sheep The fattening of adult sheep is more commonly used in our country. The main use of rams and ewes that have been eliminated is to use fattening, timely slaughter, and supply markets. This method is low cost and easy to implement. The development of adult sheep skeletons has been completed. If fattening properly, good fattening effects can also be obtained. The people in the producing areas have rich experience in fattening adult sheep. The fattening of adult rams is based on the use of agricultural and sideline products and concentrates. For example, soybeans, peas, barley, or cakes are cooked and fed vigorously, supplemented with fresh and dried grass, and fattening is effective. Some use grazing in summer and autumn, or in the autumn to make up the fine material, slaughtered before the Spring Festival, so that the market can get the cheap lamb.