Key Preventive measures for breeding Pig Diseases in Winter

Raising breeding pigs in winter is the key, which is the basic guarantee to ensure the perennial supply of piglets, but in recent years, there are many pig diseases in winter, and attention should be paid to prevention in production. The main pig diseases to be prevented and controlled are highly pathogenic blue ear disease, pseudorabies, parvovirus disease, pleuropneumonia and circovirus disease. One, five diseases 1. Highly pathogenic blue ear disease in pigs is seriously harmful and can be transmitted through boar semen or vertically between mother and offspring. It is of great significance to prevent highly pathogenic blue ear disease in breeding pigs. The inactivated vaccine of highly pathogenic blue ear disease can be selected. Piglets are immunized for the first time after weaning, and the immunity is strengthened one month later, with a dose of 2 ml each time. On the basis of doing a good job of piglet immunization, breeder pigs should be vaccinated in winter, pregnant sows should be immunized once a month before delivery, boars should be immunized every 6 months, and sows and boars should be given a dose of 4 ml each time. two。 Pseudorabies pregnant sows are prone to abortion after pseudorabies, which is very harmful to productivity. Vaccination can choose pseudorabies oil emulsion inactivated vaccine, generally should not use attenuated vaccine. The boars and sows used for breeding were injected once at the age of 6 months, and the sows were immunized again one month before parturition, and then the boars and sows were vaccinated every 6 months, with a dose of 5 ml each time. 3. Parvovirus disease mainly harms breeding sows and destroys fecundity, resulting in stillbirth, deformed fetus and mummified fetus, but sows often have no obvious symptoms. Inactivated aluminum hydroxide vaccine against porcine parvovirus can be used for prevention. Before mating of sows and 8-month-old boars, 2 milliliters of intramuscular injection of porcine parvovirus were injected into the neck, and the immune protection period was 1 year. 4. Pleuropneumonia is common in winter, poor ventilation and sudden changes in climate often induce pleuropneumonia. Inactivated porcine pleuropneumonia vaccine can be used for prevention. Breeder pigs are first immunized at the age of 6 months or before introduction, and the immunization is strengthened once after 3 weeks, using 2 ml each time. 5. Circovirus disease is very harmful to piglets, but it is mostly transmitted to piglets through breeding pigs, the semen of boars can carry virus and is transmitted to sows through mating, and sows are vertically transmitted to fetal pigs through the placenta, resulting in early infection of piglets. To prevent breeding pigs from being infected with circovirus is the key to protect piglets. Most of the clinical cases of circovirus infection are directly related to mixed infection or secondary infection of other pathogens. the most common are blue ear disease virus, parvovirus, pseudorabies virus, influenza virus, epidemic diarrhea virus, mycoplasma pneumoniae, pasteurellosis, Haemophilus and so on. In production, we should first do a good job in the immune prevention of these diseases and eliminate all threats caused by suspected accomplices. Comprehensive preventive measures in winter, we should ensure that the pig house is warm and ventilated, avoid cold stress and harmful gas harm, use good quality diet, appropriately increase the content of vitamins and minerals, and ensure adequate nutrition supply for breeding pigs. enhance the resistance of the body When supplying warm drinking water to breeding pigs, warm water should also be used to mix materials with wet mixing, timely cleaning of sinks and material troughs, prohibition of freezing of feed and drinking water, strengthening environmental sanitation and disinfection of pig houses, and comprehensive disinfection once a week. Disinfectants such as permethrin, germicidal sterilization, available iodine, potent iodine, 0.3% peracetic acid and 0.5% strong disinfectant can be selected. Even in the cold season, pig pens should be cleaned in time, and faeces should be collected and transported to manure treatment plants to accumulate and ferment; there are especially many rats in pig farms in winter, and rats are the source of infection of pseudorabies, so pig farmers must do a good job in rodent control and try their best to avoid dogs, cats, chickens, birds and other animals entering the pig house. Respiratory tract infection is very common in winter, and it is most likely to lead to mixed infection. Adding antibiotics to the feed of breeding pigs to prevent bacterial diseases is the main measure of health care of breeding pigs. Third, sow prevention program 1. One week before and one week after delivery, 125 mg of Zhiyuan Jing, 125 mg of doxycycline and 125 mg of amoxicillin were added to each kilogram of feed. 100 grams of tamoxifen + 300 grams of chlortetracycline + 200 grams of amoxicillin were added to each ton of feed for 7 days before and after delivery. Add 1 kg of Taxol per ton of feed and use it continuously from 3 days before delivery to 5 days after delivery. The drug prevention of boars can refer to the plan of sows. In addition, pig farmers can also according to the actual situation, flexible drug screening, choose a more practical and effective scheme. Source: Hebei Farmer Daily-the post in reply to Qilian, a herding horse, did not catch the mainstream of pig disease, so prevention plans need to be considered. 1. the four major diseases of pigs are still the mainstream-classical swine fever, foot-and-mouth disease, swine flu, asthma 2, pay attention to heat preservation to prevent chest transmission and diarrhea in piglets and swine flu