Winter Breeding Disease Key Prevention Measures
It is very important to maintain good breeding pigs in winter. This is the basic guarantee for perennial piglet supply. However, in recent years, there have been more pig diseases in winter, and production should pay attention to prevention. Pig diseases mainly controlled and controlled are mainly highly pathogenic blue ear disease. , pseudorabies, parvovirus, pleuropneumonia, circovirus disease.
One or five diseases
1, highly pathogenic blue ear disease
The highly pathogenic blue ear disease is seriously endangered and can be spread by the boar semen, and can also be transmitted vertically between mother and child. It is of great significance to prevent pig blue-ear disease with high pathogenicity. The highly pathogenic blue ear disease inactivated vaccine can be used. The piglets are immunized for the first time after weaning and boosted one month later with 2 ml of each dose. Based on the immunization of piglets, pigs should be vaccinated in winter, immunization should be carried out one month before delivery of pregnant sows, boars should be vaccinated once every six months, and sows and boars should be used every time. The dose is 4 ml.
2. Pseudorabies
The incidence of abortion is prone to occur in pregnant sows after pseudorabies, which is a great threat to productivity. Inoculation with pseudorabies oil emulsion can be used for immunization. In general, attenuated vaccines should not be used. The boars and sows reserved for breeding are injected once at 6 months of age. The sows are vaccinated once a month before the birth, and the boars and sows are immunized once every 6 months. It is 5 ml.
3, parvovirus disease
The main harm to breeding sows, damaging fertility, resulting in stillbirths, deformed tires, mummy, but the sow itself is often no obvious symptoms. Prevention can use porcine parvovirus aluminum hydroxide inactivated vaccine, before sow mating, boars 8 months old, intramuscular injection of 2 ml, immune protection period of 1 year.
4, pleural pneumonia
More common in winter, poor ventilation, sudden changes in climate often induce pleuropneumonia. Prevention can use porcine pleuropneumoniae inactivated bacterins, pigs first in the 6 months of age or before the introduction of the first immunization, 3 weeks after the booster immunization, each use of 2 ml.
5. Ring virus disease
Circovirus disease is very harmful to piglets, but most of them are transmitted to piglets through breeding pigs. The semen of boars can be poisoned and transmitted to maternal pigs through mating. Sows also infect fetuses through the placenta, causing early infection of piglets. Preventing swine infection with circovirus is the key to protecting piglets. Most clinical cases of circovirus infection are directly related to mixed infections or secondary infections of other pathogens. The most common are blue-ear virus, parvovirus, pseudorabies virus, influenza virus, epidemic diarrhea virus, and mycoplasma pneumoniae. , Pasteurella, Haemophilus parasites, etc., should first of all do a good job of the immune prevention of these diseases and eliminate the threat posed by all suspicious accomplice.
Second, comprehensive preventive measures
In winter, it is necessary to ensure that the pig house is kept warm and ventilated to avoid cold stress and harmful gas hazards; the use of good-quality combined diets, appropriate increase in vitamins, minerals, to ensure adequate breeding of breeding pigs, enhance the body's resistance; to breed pigs Supply warm drinking water. When using wet spices, try to use warm water and spices. Clear the sinks and feed troughs in time. Do not feed or drink water to freeze. Strengthen environmental sanitation and pig house disinfection. Disinfect once a week. Hundreds of toxins, fungicides, fast-acting iodine, powerful iodine, 0.3% peracetic acid, 0.5% strong disinfectant and other disinfectants; even in cold seasons, it is necessary to timely clean the pigsty, collect the feces, and transport it to Excrement disposal sites are piled up and fermented; there are many rats in winter pig farms, and mice are the source of infection of pseudorabies. Farmers in pig farms must do a good job of rodent control to avoid animals such as dogs, cats, chickens and birds. In the pig house.
Winter respiratory tract infections are very common and most likely cause mixed infections. Adding antibiotics to the feed of pigs to prevent bacterial diseases is a major measure for the health of breeding pigs.
Third, the sow prevention program
1. 1 week before delivery and 1 week after delivery, add 125 mg of Zhiyuan, 132 mg of doxycycline and 125 mg of amoxicillin per kilogram of feed;
2. Add tiamulin 100g + chlortetracycline 300g + amoxicillin 200g per ton of feed, and use it continuously for 7 days before and after delivery;
3. Add 1 kg of sulfosulfuric acid per ton of feed, and use it continuously from 3 days before birth to 5 days after delivery. Drug prevention of boars can be based on the sow's protocol.
In addition, pig farms can also be based on the actual situation, flexible drug screening, choose a more practical and effective program.
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