The pig's pica is a kind of stress syndrome caused by improper feeding and management, environmental discomfort, unbalanced supply of feed nutrients, diseases and metabolic dysfunction. The high incidence in autumn and winter caused unnecessary economic losses to pig farmers.
Principles of Pig Poncho The common pig puppies show the phenomenon of biting tail, biting ears, biting ribs, sucking the navel, eating feces, drinking urine, arching, noisier circles, jumping bars, and sow eating pigs. Mutual fighting is a relatively bad one in pica. It is manifested as pigs sensitive to external stimuli, uncomfortable behavior, reduced appetite, and fierce eyes. At first, only a few heads fought each other, and gradually there was a lot of participation, mainly biting the tail, and a few also had biting ears. Commonly, biting tails had hair loss and bleeding, biting the pigs and then producing heterophilia on the blood, causing biting tails, and the damage gradually expanded. Pigs often suffer from tail skin and hair loss, affecting body weight gain, severe secondary infection, osteomyelitis and abscesses, if not treated, can be complicated by sepsis and lead to death.
Improper feeding and management of morbidity: including over-breeding density, narrow feeding trough space, limited feeding and drinking water shortages, disparity in the size of the pigs in the same pen, the fight caused by new swarms of the pigs, and competition for rankings. Restaurant.
Environmental factors: The reason for the higher incidence of pigs in winter and autumn may be due to the dry and dusty environment that caused the pigs to be more irritated and aggressive. Poor environment conditions, such as high or low temperature inside the house, poor ventilation and accumulation of harmful gases, pigs, lighting is too strong, the pig is in a state of excitement and irritability, the pig's living environment monotonous, scared, pig random cluster; Abnormal weather changes, wet skin caused by the penis and other factors, so that the pig has a sense of discomfort or rest can lead to the occurrence of bites and other pica.
Variety and individual differences: If the pigs in different breeds or between the same breeds have large differences in weight within the same pigsty, due to the differences in their breeds and living characteristics, they will be in conflict with one another, and they will compete with each other for bites. The differences between individuals are large. In possession of sleeping areas and catching food, there is often a phenomenon of bullying.
Diseases: When pigs suffer from ectoparasites such as lice and fleas, they can cause skin irritation and irritability in pigs. After friction in the house, they lead to exudates behind the ears, ribs, etc., which may attract other pigs. Inducing biting tails; parasites in pigs, especially pigs, stimulate pigs to attack other pigs. Hormone stimulation in pigs can lead to emotional tailing.
Unbalanced nutrient supply: When the nutritional level of the feed is lower than the standard for feeding and the nutrient needs of the pig's growth and development cannot be met, biting tail can occur. In addition, various trace nutrients in the diet are imbalanced, such as the deficiency or imbalance of potassium, sodium, magnesium, iron, calcium, phosphorus, and vitamins in the diet.
The nature of the pig: pigs love to play, in a comfortable environment, livelihood piglets, bite the tail of other pigs to play, the imitation of pigs is one of the reasons why a pig has a pica and causes a large group of pica. . At the same time, due to the bite caused by mutual biting and bleeding and other trauma, but also induced the interest of pigs biting each other.
Prevention
1. Strengthen feeding management and create a good living environment.
Reasonably deploy the pig house. Individual differences in the same pen house should not be too large and should be as close as possible. The stocking density should not be too large. The pig's stocking density should generally be determined according to the size of the house. The principle is that it is not crowded and does not affect the growth and normal intake of drinking water. It is dense in winter and scarce in summer. It guarantees a breeding area of ​​0.8 to 1 square meter for finishing pigs, 0.6 to 0.7 square meters for middle pigs, and 0.3 to 0.5 square meters for pigs.
Hogs were raised separately. The occurrence of tail bite is often caused by some aggressive pigs. If pigs with tails are found in the circle, they should be singled out in time. It can be coated with tar on the pig's tail, and it can also be sprayed on the whole body and nasal part of the pig body with bok or more than 50 degrees of liquor, 3 times to 5 times a day. Generally, the tail bite can be controlled in two days. While isolating the bitten pigs, the pigs that were bitten should be washed with potassium permanganate solution in time and coated with iodine to prevent wound infection. Severe antibiotic treatment can be used.
Avoid stress. Control the temperature and humidity in the house, strengthen the ventilation of the pig house, and prevent the stress caused by thief wind invasion, fecal pollution, air turbidity, and humidity. Regular quantitative feeding, no feeding of moldy feed, drinking water to be clean, adequate feeding trough and sink facilities, pay attention to hygiene, to avoid snatch fighting and food inequality.
2. The piglet is closed in time. Tailing tails is an effective measure to control tail bite.
3. Distract the pig's attention. Putting toys such as chains, balls, used tires, and green feeds into the pigsty distracts pigs from their focus and reduces tail biting.
4. Use balanced nutritious compound feed to meet the nutritional needs of the pig. The use of high-quality feed ingredients, the material can be added to the full-price nutrients "provocation peptide", a modest increase in the amount of salt. For sows who have been eating tires and fetuses, in addition to strengthening the care, they can also use 100 grams to 300 grams of boiled shrimp or small fish, once a day, for several days. It is also possible to add seasoning and digestion agents to the feed and add garlic, sugar, dried tangerine peel and some flavoring agents to improve the pig's pica.
5. Treat symptomatic medications and control pica. For pigs suffering from chronic gastrointestinal diseases, treatment is mainly based on antibacterial, anti-inflammatory, and elimination of harmful substances in the intestines, combined with rehydration and cardiac measures. Pigs suffering from parasitic diseases should be promptly debrided with net Levi. External disinfection of the bitten pigs, supplemented with antibiotics.
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