Circovirus is a common infectious disease, and there are two manifestations, namely, porcine dermatitis and nephrotic syndrome and post-weaning multisystemic exhaustion syndrome. So how do we control the breeding process? The following small series will be introduced to you in detail.
1. Two main forms of circovirus
Porcine dermatitis and nephrotic syndrome: often occurs in pigs older than 12 weeks of age (80 days old). The sick pig is mildly feverish, unwilling to walk, and the skin has a round or irregular shape bulge, showing a red or purple surrounding and a black center. The lesion usually appears in the posterior and abdomen and gradually spreads to the chest or ear. Blended into strips and plaques.
Post-weaning multi-systemic exhaustion syndrome: pigs and growing pigs often in the nursery stage, showing poor growth or stagnation, weight loss, rough hair, pale skin and difficulty breathing, sometimes diarrhea and jaundice. Inguinal lymphadenopathy often occurs in the early stage, and the eyelids are edematous.
2, prevention measures
1 strengthen feeding management
And environmental sanitation: regular deworming; reduce stocking density, strengthen ventilation, reduce stress; maintain a reasonable and balanced nutritional level of the herd; self-ingredients should be regularly added with mildew remover; regular disinfection and disinfection with pigs, such as poly 1000 ml of ketone iodine solution to 300 liters of water, spray disinfection; 1000 liters of water in the field housing culture equipment, 200 liters, spray, soak, rinse disinfection. You can also choose disinfectant drugs such as strong disinfection, 100 poison, and poisonous enemy.
2 immune prevention
Artificial passive immunization: porcine circovirus type 2 inactivated vaccine produced by different manufacturers was used for immunization. Or a serious pig farm can take pigs circovirus disease infected pigs with more poisonous organs, such as lymph nodes, lungs, spleen and other tissues, crushed and inactivated to make tissue inactivated vaccines, for the whole pigs Immunization, 12 to 15 days after injection, can reduce the number of new cases and gradually subsidize the epidemic. The use of its own vaccine: Once the disease occurs in the pig farm, the internal organs of the infected pig can be processed into their own vaccines. After clinical practice, the effect is good. However, there are two viewpoints at this stage: First, the sows and weaned pigs are simultaneously immunized, and the advantage is that the immune effect is fast, and the disease can be controlled within 1 to 2 months; the disadvantage is that if the inactivation is not complete, the disease will persist for a long time. . Second, it is only immune to weaned piglets. The advantage is that the immune safety is good, and the disease will not be long-term. The shortcoming is that the immune effect is slow, and it takes about half a year to control the disease.
3 drug prevention
Prevention of dermatitis and nephrotic syndrome: usually add 1 kg of doxycycline per ton of feed, 1 kg of fungicide, and feed for 5 to 7 days in continuous feeding.
Prevention of multi-systemic exhaustion syndrome before and after weaning: Add 1 kg of ampicillin per ton of feed, 1 kg of doxycycline, and add electrolysis to drinking water. According to clinical manifestations, sodium camphorsulfonate can be used to treat pigs with pale skin. Injection of iron dextran (iron) needle.
4 drug treatment
Piglet medication: suckling piglets at 3, 7 and 21 days of age with 3 doses of dexamethasone (long-acting oxytetracycline, 200 mg/ml, 0.5 ml each), or cephalosporins at 1, 7 days of age and weaning 0.2 ml of thiafu; 1 week before weaning to 1 month after weaning, fed with yamwort (50 mg/kg), chlortetracycline or oxytetracycline or doxycycline (150 mg/kg). Amoxicillin (500 mg / liter) drinking water. Sow medication: The sow is fed with 1 mg of prenatal and 1 week postpartum, and the feed is supplemented with 5 mg (kg/kg), chlortetracycline or oxytetracycline (300 mg/kg) for 5-7 days.
The above is the prevention and control measures of porcine circovirus. Xiaobian hopes to help everyone.
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