It is very common for pigs to bite the rack in pig farms, so what causes pigs to bite the rack? How to avoid pig bites in pig farms? As the saying goes, it is necessary to prescribe the right medicine to treat a disease, and to analyze the real cause of pig biting, so as to formulate reasonable and effective prevention and control measures. This paper summarizes the reasons of 10 of pig bite rack for your reference and I believe it can help you. 1. The density is too large: pigs are gregarious animals. In the past, pigs were generally free-range, and the living habits, air quality and density are incomparable to those of intensive pig raising now. Therefore, under modern high-density feeding conditions, poor air quality, too high harmful gas content or too high dust may increase the probability of pigs biting. 2, the group is big, the individual difference is big: the group is too big and the strength is uneven. In order to strive for group order, there will be struggles. 3. Pigs don't have enough to eat and drink: Pigs will fight because of hunger, lack of drinking water and grabbing food. 4. Mixed with strange pigs in the herd: Because of mixed with strange pigs, the smell of pigs is different from other pigs, and pigs have a sensitive sense of smell, which is easy to cause pigs to bite. 5. Feeding time is too long, light is too strong, etc. Because the feeding time is too long, pigs or feed are easy to stick to pigs. Pigs or other pigs that are not full are prone to fight for food or eat food. If the light is too strong, pigs are prone to allergies, physical discomfort, itching, or mental mania. 6. The air is dirty, the dust is too large, the temperature is too high, and the humidity is high: under this condition, the pig is unwell, and it is easy to cause the normal function disorder of the pig itself after a long time, thus making the pig itself excited, increasing the aggression of the pig and causing a fight. 7. Traumatic bleeding or physiological diseases: Traumatic bleeding caused by various reasons, or odor changes caused by certain diseases, such as foul smell of blood, changes in body odor and urine odor caused by some diseases in pigs, are easily recognized by other pigs, thus causing group attacks, just like a group of people eating, suddenly a person with athlete's foot or body odor comes to sit at the table, and will definitely be driven out after being beaten up by everyone. 8. High-energy and high-protein feed, additives, long-term medication and other factors: such as high-energy and high-protein feed, high-arsenic diet, high-copper diet and other factors cause excessive burden on liver and kidney, moderate physique, and excessive fire in pigs. Long-term medication causes excessive burden on liver and kidney and even damage, digestive tract and endocrine disorders, which leads to mental problems in pigs, and stagnation of liver qi causes excessive fire and mania, thus causing pig bites. 9. Moldy and deteriorated feed raw materials: Due to moldy and deteriorated raw materials, or stale, smelly and poor palatability, the pig's food intake is reduced, indigestion, chronic poisoning and other factors lead to pig hunger or metabolic problems in a medium state, resulting in pig biting. 10, Hereditary aggression, stress: Because of some pigs' own genetic factors or strong stress, pigs' own fighting and playful psychology, pigs themselves are aggressive and cause fighting.