What disease is a large number of bleeding points on pig skin?
Release time:
Aug 15,2018
In pig production, it is often seen that there are a large number of even systemic bleeding points in the skin of pigs at various stages after the onset of the disease, which are more common in the neck, back and under the abdomen, medial thigh and medial axillary of pigs. So what is the reason for the emergence of these subcutaneous bleeding points in pigs? Here I write a personal point of view, hoping to provide some reference for the majority of pig farmers:
A: mycotoxin poisoning
Mycotoxin poisoning has the characteristics of chronic poisoning!The mycotoxins that can directly cause skin bleeding are mainly black grape ear mycotoxin (S-toxin). Bleeding spots appear on glabrous or less hairy skin sites. Another common clinical skin bleeding occurs in breeding pigs, especially multiparous sows and older boars, which have a large number of bleeding points distributed along the middle line of the back of the neck and become dense needle black spots for a long time, but the affected pigs have normal appetite and body temperature. It is often mistaken for eperythrozoonosis and must be carefully identified.
Two: allergic reaction
Allergens can stimulate the skin to produce dermatitis, eczema, and other skin surface tissue inflammation. When inflammation invades the deep skin tissue, skin such as ear root, lower abdomen, back, inner side of limbs, etc. often occur. At this time, the skin appears red, swollen and inflamed, followed by flat red papules with rice grains to pea size.
Three: porcine eperythrozoonosis
Eperythrozoon suis only infects domestic pigs, not wild boars. Pigs of various breeds, genders and ages are susceptible, but piglets and sows are more common. Chronic eperythrozoonosis pigs showed emaciation, pallor, and some urticaria-type or plaque-type allergic reactions, usually in the abdominal subcutaneous bleeding point.
1Prevention and treatment: triazamidine for injection,3-5mg/kgWeight, intramuscular injection. Seriously ill pigs in addition to the injection of triazamidine, while intramuscular injection of long-acting oxytetracycline. Severely anemic pigs are supplemented with iron supplements,VB12,VCAnd so on, the curative effect is obvious.
2Prevention: in the epidemic season of the disease can be added in the feed or oxytetracycline, etc., can effectively prevent the occurrence of the disease.
Acute swine fever mainly presents septicemia changes, one of the changes of diagnostic value is the skin or subcutaneous bleeding point. Pigs under the abdomen, the inside of the limbs, buttocks and other places appear red, finger pressure does not fade point-like bleeding point or erythema.
Swine fever prevention and control: virus disease no specific drug treatment, mainly rely on vaccine epidemic prevention. Strict implementation of immune procedures, timely antibody detection, where the monitoring of antibodies unqualified pigs, need to be timely supplement.
5. Pseudorabies
Pseudorabies prevention and treatment: virus disease no specific drug treatment, mainly rely on vaccine epidemic prevention. Strict implementation of immune procedures, timely antibody detection, where the monitoring of antibodies unqualified pigs, need to be timely supplement. The disease is often associated with infectious pleuropneumonia, Pasteuella multocidans, Haemophilus parasuis, Streptococcus and other bacteria concurrent or secondary infection, need to apply effective antibiotics to control concurrent or secondary infection.
6. Streptococcus suis disease
The clinical symptoms of acute septic pigs have a certain number of bleeding points in the upper ear, chest, lower abdomen and the inner skin of the limbs, and the subcutaneous tissue is extensive bleeding.
Treatment: The following aspects must be considered when selecting the most effective antibacterial drugs against Streptococcus suis infection: the sensitivity of the bacteria, the type of infection and the route of administration. The sensitivity of Streptococcus suis to penicillin and amoxicillin was higher. In addition, ampicillin, ceftiofur, tiamectin and trimethoprim sulfonamide complex also have obvious effect on the treatment of Streptococcus suis.
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