The pigs bite each other and are sometimes referred to as the "anti-discomfort syndrome" because any unpleasant environmental factors can cause biting in the pigs. The lighter ones will bite their tails in half, and the heavy ones may all bite off. Some pigs also bite off. whisper. This phenomenon usually occurs at the time of eating. Pigs that are bitten often hide in corners. If they are not treated, they can cause wound infections. This infection can cause local inflammation and tissue necrosis, reducing carcass quality. The tail biting and ear-biting of pigs are caused by a variety of reasons. Therefore, measures must be taken to prevent them. (1) Nutrition: Under the feeding conditions, all kinds of nutrients needed for pig growth rely on the supply of feed. When the nutrition of the feed is not balanced, the pigs respond to stress and bite. For example, the nutritional level of feed is lower than the standard for feeding; the feed is not scientific enough; the quality of protein in the feed during the early period of fattening is poor; the lack of vitamins, iron, copper, calcium, magnesium and salt, and the lack of cellulose can all lead to the occurrence of biting. (2)Environment: Poor environmental sanitation conditions in the pig house, high concentrations of harmful gases such as ammonia, carbon dioxide, and hydrogen sulfide, high or low temperatures, and reduced ventilation speeds that can cause discomfort to the herd or poor rest can lead to herds A bite occurred. In harsh environments, excessive light is also a stress that promotes raccoonosis in herds. (3) Management: The breeding density is too high, the pigs are in conflict with each other, and they bite each other for food and drinking. The weight of pigs in one column is very different, and pigs that are small and frail are often the subject of biting. Once bitten, they cause all pigs to bite. Insufficient feeding trough or insufficient drinking water can often cause an outbreak of biting. (4) Disease: The ectoparasite can act as an additional stress. The ectoparasite caused irritation to the pig due to skin irritation, rubbed on the walls and bars in the house, and caused an injury that caused other pigs to bite. Internal parasites: If aphids work in the body, biting tails may also occur and insects must be promptly removed. Anemia in pigs and tail necrosis can also induce pigs to bite and bite their tails. In addition, biting ribs and other parts can be seen, such as biting hooves, legs, neck, and ankle joints. (5) Sorting bites: In order to make full use of the sire equipment and rearing it in parallel, the social order of the original herd is destroyed (if there are two first-order orders in the two-column piglet merger), a new one needs to be established. order. In particular, eating and sleeping are biting in order. Once the new order is established, it will calm down. Prevention of swine bites can be started from the following aspects: (1) Satisfy the nutritional needs of the pig and feed the full price feed. When biting tails are found, compound vitamins and minerals may be properly added in the feed. Feeding should be done regularly and it is forbidden to feed moldy feed. (2) Reasonably grouping pigs of similar breeds, body weight, body mass, and feed intake should be kept in the same circle. (3) Breeding density should be appropriate, to ensure that each pig has enough area, such as 3 to 4 months of pigs, the column area should be 0.5 to 0.6 square meters. (4) Environmental requirements Good ventilation, heat preservation, moisture-proof and proper lighting facilities should be provided to ensure that the house is hygienically dry and well ventilated. (5) Piglet tailing: piglets can be tailed 1 to 2 days after birth. According to data, only 0.25% of tail tails occurred after tail fracture, but the incidence of untailed tails was 6.86%, a difference of 27 times. Method: Use wire pliers to clamp two pliers at a distance of one third from the tail root. The distance is about 0.4 cm. The coccyx and tail muscles are clamped off. The blood vessels and nerves are compressed and the skin is pressed into a groove. The forceps are clamped for about 10 days. Part can be taken off. This method does not cause bleeding or inflammation, and it works well. (6) The bitten pig should be treated as soon as possible: wash and disinfect with 0.1% potassium permanganate, and apply iodine or ferrous chloride solution to prevent pus. Treatment of severely available antibiotics for bites.
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