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 and rotted succulent vegetables, beets and green grass fodder for a long time, moldy and corrupt or boil in the pot, overnight, will make 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 seedlings leaves and fresh flax leaves contain cyanogenic glycosides in these feeds. The feed containing the work pods is piled, moldy, or frost wilted. Under the action of special enzymes in the plants, cyanide glycosides are hydrolyzed. And release 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 green stems and leaves, skin, especially embryos contain solanine, the highest in the epidermis of the potato block in the germ and the sun exposure to purple blue. Solanine stimulates inflammation of the intestinal tract and enters the bloodstream, which can damage the medulla and spinal cord and produce 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 ground with black spotted sweet potato is best fed to pigs. Both raw and cooked pigs love to eat, but ripening feeds are almost twice as much as their 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. V. Raw soybeans and soybean cakes Beans containing antitrypsin, saponin, urease, etc., affect the palatability and feed digestibility, or even cause diarrhea, affect the weight gain, so the soybean meal cake Should be cooked. 6. Non-detoxified cotton kernel cakes and fresh cotton leaves contain gossypol in cottonseeds and leaves. During the extraction of cottonseeds, 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 gossypol content was 0.01%, and the highest was 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%. In China's rural areas, “sandwich cakes†are steamed for a short time or fried without steaming. There is less destruction of free gossypol, and the content of gossypol in cakes is often as high as 0.2% to 0.3%. This kind of cake must be added to the diet and free. Gossypol can be fed with equal amounts of ferrous sulfate. The detoxified cottonseed cake was fed to the pig no more than 1kg per day, and the 3-month-old piglet was no more than 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. VII. Non-toxic rapeseed cake The leek seed 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. Oxazolidinone and other harmful substances. Mustardase is also present in certain gut bacteria, so feeding untreated sulfur-containing glucosinolates is more harmful. Excessive use of rapeseed cake will affect the growth of finishing pigs and feed conversion rate. Generally, rapeseed cakes can be treated with high-temperature alkalization and control and quantity. In fattening pig feed, the proportion of rapeseed cake in refined feed should not exceed 20% to 25%. 8. Pestive Peanut Cakes The peanut cakes are most likely to be infected with Aspergillus flavus during storage and produce aflatoxin. Aflatoxin production occurs on peanut cakes and cannot be eliminated even after cooking. Nine, moldy corn, gluten, compound feed These moldy feed contains Aspergillus flavus, Aspergillus flavus, rust, etc., a variety of mold poisoning occurs after eating pigs. 10. Excess distiller's grain Distiller's grain feed should not exceed 30% of the total feed, otherwise alcohol poisoning may occur.
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