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Several common feeds that cannot be used to feed pigs
During pig rearing, feed poisoning is more common due to poor feed quality, malmoded feed and feed malmodulation. Once poisoned, it affects the pig's growth and development, but it causes death. This article lists common feeds that cannot be used to feed pigs for reference. First, a large number of piled up and rotting succulent vegetables, beets and grass? Green feed is stored for a long time, moldy and corrupt or boiled in the pot, overnight, will reduce the nitrate to nitrite. Green feed boiled quail preserved in the pot for 24 to 48 hours, the nitrite content of up to 200 ~ 400mg / kg (lethal dose of about 70 ~ 75mg / kg body weight), it should be fed immediately after the fresh feed or cooked, Do not squat in the pot. Second, fresh sorghum seedlings, corn seedling leaves and fresh flax leaves? These feeds contain cyanogenic glycosides, containing the work of the feed after stacking, moldy or frost withered, under the action of special enzymes in the plant, the cyanide was Hydrolysis releases hydrogen cyanide. The regenerated seedlings harvested after corn and sorghum are more harmful after frost. Hydrocyanic acid and cyanide are highly toxic, and even small amounts can cause pig poisoning. Third, the sprouting potato and its stems and leaves? The green stems and leaves, skin, especially embryos contain solanine, the highest in the epidermis of the potato germ and in the sun exposure to purple. Solanine stimulates the inflammation of the intestinal mucosa, which can damage the medulla and spinal cord and cause toxic paralysis. The use of potato germ as feed, germination, partial rot, or potatoes with green skin in production should be carried out by first trimming the germ, green skin, and decayed parts, washing them, and then feeding them. Fourth, sweet potato with black spot or sweet potato powdered with black spot disease? Sweet potato is best to feed pigs, raw and cooked pigs are fond of eating, but the digestive feed is almost twice as high as the raw protein digestibility . Sweet potatoes with black spot disease contain mycotoxins, which cause poisoning after eating, and when they are fed, black spots are cut off and washed. Fifth, raw soybean and soybean meal? Beans containing anti-trypsin, saponin, urease, etc., affect the palatability and feed digestibility, or even cause diarrhea, affect weight gain, so the soybean meal The class should be cooked. 6. Non-toxic virus-free cotton kernel cake and fresh cotton leaf? Cottonseed and leaves contain gossypol. During the extraction of cottonseed, part of gossypol was excluded. The content of free gossypol varies according to different extraction methods. The lower the residual gossypol, the lower the gossypol, and the better the quality of the cottonseed cake. The lowest content of gossypol is 0.01%, and the highest is 0.6%. The content of free gossypol in the fed cotton kernel cake is not higher than 0.04%, and the maximum tolerable amount of free gossypol in the pig is 0.01%. China's rural soil cake steamed fried time is very fast or only fried steamed, the damage of free gossypol is less, the content of gossypol in the cake is often as high as 0.2 ~ 0.3%, this kind of cake must be added in the diet with free gossypol, etc. Amount of ferrous sulfate can be fed. The detoxified cottonseed cake was fed to the pig no more than 1kg per day, and the 3-month-old piglet did not exceed 100g. Fresh cotton leaves that have not been detoxified are fed with 3 kg of pigs per day, and piglets can be poisoned with 1.5 kg. 7. Non-toxic rapeseed cake? The rapeseed cake contains sulphur glucoside, which itself is non-toxic, but under neutral conditions, it is hydrolyzed to isothiocyanate under the action of mustard enzyme in rapeseed cake. And 〖HT5, 6〗 mouth 〗 〖KG-*3 evil 〖〗 XL oxazolidinone and other harmful substances. The mustard enzyme is also present in certain gut bacteria, so feeding untreated sulfur-containing glucosinolates is more harmful. Excessive use of rapeseed cake will affect the weight gain and feed conversion rate of growing pigs. Generally, rapeseed cakes can be treated with high-temperature alkalization and control and quantity. In fattening pig feed, the ratio of rapeseed cake to concentrate feed should not exceed 20 to 25%. Eight, corruption of corrupt peanut cake? Peanut cake in the storage process is most susceptible to the production of Aspergillus flavus and aflatoxin. Aflatoxin production occurs on peanut cakes, and even if cooked, it does not eliminate the toxicity. Nine, moldy corn, gluten, compound feed? These moldy feed contains Aspergillus flavus, Aspergillus flavus, rust, etc., after eating pigs will be a variety of mold poisoning. Ten, excessive alcohol? The amount of alcohol added to the pig should not exceed 30% of the total amount of feed, otherwise alcoholism may occur.