Detailed description: 1, 70% of the product is soybean skin, and the net milk yield of soybean skin is 8. 15MJ/kg, which is higher than that of wheat bran (6.72 MJ/kg) and slightly lower than that of corn (8.23 MJ/kg). The NDF digestibility of soybean skin is as high as 95%, which meets the energy demand of cattle and sheep growth. The content of medium-sized washing fiber in molasses bean skin is above 30%, and feeding molasses bean skin can also reduce metabolic diseases of ruminants. 2. 30% of the product is soybean oligosaccharide, which makes the product taste unique and palatable, increases the feed intake of cattle and sheep, meets the energy demand of cattle and sheep, and promotes the balanced and synchronous absorption of other nutrients by cattle and sheep. 3. Soybean isoflavones (known as natural phytoestrogens) greatly improve and prolong the production performance and peak period of dairy cows, ewes, sows and laying hens. 4. Molasses soybean hull can improve the milk fat rate and milk yield of dairy cattle. Ingredients: dry product content (%) moisture 14 crude protein 8- 10 crude fat 3.5-5 ash 5-7 crude fiber 22-27 soybean isoflavone 0.6-10 soybean oligosaccharide 25, among which: sucrose stachyose raffinose and other functional oligosaccharides 7.25.4/kloc. Methods: 1. Batch use: add 8- 15%. 2. Cattle and sheep can be directly fed: cows and beef cattle 1-2kg/ time, others 0.3-0.5kg/ bag 40k g/ time, and the shelf life of standard packaging: "dry products" is 6 months. Therefore, the research and development of new feed resources is an important work for livestock workers now and in the future. Soybean hull is an ideal feed resource with great potential. The nutritional value of 1 soybean hull is a by-product in the process of soybean oil production, accounting for 10% of the total soybean volume and 8% of the total soybean weight. Soybean skin is mainly the substance wrapped in the outer layer of soybean, and its color is beige or light yellow. It is obtained by two processing methods: hot peeling or oil processing, crushing and sieving. The main components are cell walls and plant fibers, with crude fiber content of 38%, crude protein 12.2%, calcium oxide 0.53%, phosphorus 0. 18% and lignin content less than 2%(NRC, 1996). In addition, there are two kinds of soybean skin products suitable for animal feed: soybean crushed feed and soybean crushed waste. The soybean crushing feed consists of soybean skin, processed soybean powder and crushed materials at the tail of the crusher. The crude protein content of the feed is 13%, and the crude fiber content is about 32%. The crushing waste of soybean skin consists of soybean skin and cotyledons attached to dry skin. The crude protein content of this by-product is 1 1%, and the crude fiber content is about 35%. 2 Advantages of bean skin 2. 1 Bean skin contains a lot of crude fiber, which can replace the low-quality straw and hay straw in the coarse feed of herbivores. It has poor palatability, low crude protein and mineral content, and high lignin content. In the process of drying grass into hay, most nutrients are lost due to chemical and mechanical effects, and the utilization rate of herbivores is low. The NDF of soybean hull is 63%, ADF is 47%, and the lignin content is only 1.9%. The water quality of cellulose is an important factor in the digestion of cellulose in feed. Because of the high crude fiber content and low lignification degree of soybean skin, daxianpi can replace straw and hay. The results of HSU( 1987) test showed that the dry matter digestibility of soybean skin in nylon bags was 90.3% in 27 hours and could be completely digested in 36-48 hours. Owen( 1987) experiment showed that the digestibility of NDF in soybean skin was as high as 95%. Kedey and Williams( 1995) pointed out that digestible fibrous by-products (such as soybean hulls) are good roughage for grazing in winter, which is better than feeding hay in winter. 2.2 Soybean hull contains a proper amount of protein and energy, which can replace some concentrate supplements for ruminants. The crude protein content of soybean skin is 12.2%, which is higher than that of corn (10%) and lower than that of wheat bran (17. 1%). The net energy of soybean hull is 8. 15MJ/kg, which is higher than that of wheat bran (6.72MJ/kg) and lower than that of corn (8.23MJ/kg), so soybean hull can replace a certain amount of corn and wheat bran. Adding soybean hull can also reduce the metabolic diseases of ruminants. Adding grain energy feed to low-quality roughage, because the grain feed contains a lot of starch, it ferments rapidly in rumen, the pH of rumen fluid drops, and the microbial flora is disordered, which leads to acidosis, thus affecting the digestion of feed dry matter and crude fiber. Replacing part of grain feed with soybean hull can not only reduce acidosis caused by high-precision diet and form favorable rumen pH value, but also stimulate the rapid growth of fiber-degrading microorganisms in rumen fluid and enhance fiber-degrading activity. The application effect of three kinds of soybean hulls is 3. 1. The application effect of soybean hull as roughage Waidner (1994) added five different levels of soybean hull to the diet of Holstein cows, in which soybean hull replaced roughage by 25%-42% and hay replaced silage by 33%. The effects on the digestibility of nutrients and milk production performance of dairy cows were determined. The results showed that the digestibility of dry matter, the digestibility of neutral fiber and the yield of typical components of soybean hull were 1, and the calculation method was dry matter | crude protein | ether extraction | acid pickling | neutral washing | lignin | calcium | phosphorus | potassium | magnesium | iron | waste liquid | agent fiber ||||12-6544. 0.11-0.25 |1.03-1.55 | 0.13-0.31| 410 (mg Hibberd (1987) also reached a similar conclusion. The experiment in Figgins (1995) showed that the NDF in dairy cows' diet was 14%- 16%, and the remaining 28%-3 1% came from soybean skin, so the milk production performance of dairy cows was not affected. Meng Qingxiang (2002) used soybean skin instead of roughage to measure the performance of meat rabbits. The results showed that the daily gain and feed conversion rate of meat rabbits increased in a quadratic curve when 0, 25 and 50% soybean stalks were replaced by soybean hulls (P 0.02), and the feed cost per kilogram of milk decreased by 0.045 yuan and 0.057 yuan respectively. Ludden( 1995) analyzed the effect of adding soybean hull to feed on the performance of beef cattle with different concentrate levels. When the concentrate level of diet is lower than 25%, the nutritional value of soybean skin is better than that of corn. When the concentrate level is 25%-50%, the feeding value of soybean hull is equivalent to 80%-95% of corn. Another experiment showed that beef cattle could gain 1.0 1 kg/day by feeding soybean skin in hay diet, while the daily gain by feeding corn and soybean powder was only 0.95 kg/day. Serwas (1997) replaced 60% corn in concentrate with soybean skin in the experiment of lactating sheep, and the milk yield increased by 3%, the milk fat rate increased by 14%, and the fat-corrected milk quantity increased by 107.