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Pig skin diseases require early prevention and treatment by farmers

Pig skin diseases require early prevention and treatment by farmers

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Pig skin diseases are one of the common diseases in the pig industry, especially after the large-scale pig farms enter the late autumn and winter, the pigs' density increases, which increases the chance of contact with each other and is more likely to get sick. Skin diseases not only affect the growth and development of pigs, but also cause a large number of deaths in severe cases. Therefore, the veterinary drug manufacturer-Xingwang veterinary drug expert reminds that it is necessary to strengthen feeding management, pay attention to differential diagnosis, and take control measures as soon as possible.
1. Eczema
Eczema is mostly caused by special inflammation of the skin surface caused by unclean skin, damp and hot steaming, sweat immersion, hot sun exposure and insect bites, or due to certain chemical irritation, as well as simple feed, insufficient minerals and vitamins. It is characterized by frequent appearance of erythema on the skin of the pig's head, face and inner thigh, and then the formation of papules, blisters and thick blisters. The sick pig showed itching and restlessness, constantly rubbing itching on the walls and troughs, showing erosions and bleeding after rubbing. The lesion gradually expanded to the whole body, and finally formed a scab, the skin thickened and wrinkled, and the coat fell off.
Diagnosis A preliminary diagnosis can be made based on clinical symptoms and pathological changes.
For prevention and treatment, first remove the cause of the disease. In the early stage (erythema stage and papule stage), the affected area can be treated with protective dusting (talcum powder, boric acid, tannic acid, etc.) Rinse with alum water or 2% tannic acid solution. After washing, apply 1%~3% purple syrup; in the later stage (scab period), the affected area can be washed with hydrogen peroxide and 1%~3% boric acid solution. After washing, peel off the scab. Applying zinc oxide or boric acid ointment, etc., combined with the application of antihistamines, adrenal corticosteroids, and vitamin B6 have a better therapeutic effect.
2. Urticaria
Urticaria is also called rubella. It is mostly caused by certain toxic feeds, medicines, or insect bites, or because certain toxins are absorbed when suffering from gastrointestinal diseases. It is an allergic skin reaction disease. The clinical feature is the sudden appearance of edematous round flat rashes on the skin, densely existing, of different sizes, often appearing on the eyelids, nose, neck, or perineum, the skin is itchy, and some local hair loss. In severe cases, loss of appetite, lack of energy, and mild diarrhea. It can occur in pigs of all ages.
Diagnosis According to the transient eruption on the skin of sick pigs, treatment with anti-allergic drugs is effective, and the initial diagnosis can be made.
To prevent and eliminate the cause, apply anti-allergic drugs, such as diphenhydramine hydrochloride, calcium preparations, sodium thiosulfate, etc., or intravenous procaine, or subcutaneous injection of epinephrine and other drugs, and cooperate with intestinal regulation and laxative treatments. The effect is better.
3. Blisters
Porcine vesicular herpes is an acute and febrile infectious disease caused by the vesicular herpes virus, which can occur in pigs of all ages. Its clinical features are very similar to that of swine foot-and-mouth disease. The main manifestation is that the body temperature of sick pigs rises, blisters appear on the nose, lips, mouth, and hooves, which become ulcers after ulceration. In severe cases, lameness, depression, and loss of appetite occur. However, the mortality rate is not high and the recovery is relatively fast.
Diagnosis cannot be distinguished from foot-and-mouth disease, swine vesicular disease, and vesicular stomatitis in terms of clinical symptoms. It can be diagnosed based on susceptible animals, combined with animal inoculation tests, serological tests, and virus isolation and culture.
Prevention and treatment Currently, there is no specific treatment and vaccine prevention, and it is mainly controlled by strengthening feeding management, blockade, and isolation and disinfection. Sick pigs and their products must not be moved. All transportation tools and utensils that have been in contact with sick pigs can only be used after disinfection. During the treatment period, feed the sick pigs with liquid or soft feed and clean drinking water, keep the barn dry to prevent hoof contamination, and the affected area can be coated with antiseptic agents such as gentian violet, 5% copper sulfate solution, etc., if necessary Use antibiotics systemically to prevent secondary infections.
4. Blister disease
Swine vesicular disease is an acute and contact infectious disease of pigs that is caused by vesicular virus and is very similar to foot-and-mouth disease. It can occur in pigs of all ages. Its main feature is the appearance of one or more soybean to broad bean large, round or oval blisters on the hoof crown, hoof fork, heel and other parts of pigs. The blisters are filled with clear or light yellow liquid, which then ulcers and severe body temperature rise. High, increased pain, unable to stand or walk, and limp. Some sick pigs also have blisters on the mouth, tongue, nipples and nose.
Diagnosis This disease is only an infectious disease that occurs in pigs and is characterized by blisters on the hoof. Laboratory diagnosis is required to confirm the diagnosis.
Control At present, there is no effective treatment method. The emphasis is on strengthening quarantine. The utensils and transportation tools that have been in contact with sick pigs should be thoroughly disinfected, and the heads and hooves of sick pigs should be treated harmlessly. Unruptured blisters can be cut and washed with 0.1% potassium permanganate or 2% alum water, and then rubbed with iodine glycerin, gentian violet or sulfa ointment, and if necessary, inject antibiotics or sulfa drugs to prevent Secondary infection. Prevention can be immunized with murine attenuated vaccine or cell culture attenuated vaccine.