Sheep farmers must know, how to prevent sheep mite disease scientifically?

Sheep mite disease should adhere to the prevention of the first, prevention is the key to the prevention and control of the disease. The specific methods are: 1. Pay attention to the cleanliness and hygiene of the sheep house and sheep body. The sheep house environment should be dry, well-lit and well-ventilated, and it should be cleaned and disinfected regularly to provide a good feeding environment for the sheep.

2. Isolate and observe the introduced sheep, observe for one or two months to ensure that there are no mite parasites, and then mix and feed in groups; 3. For sick sheep found to have mite disease, they should be isolated, and special care should be given to the sick sheep in terms of hygiene and feeding management.

4. Regularly carry out medicated baths on the sheep to obtain the dual effects of prevention and **.

Exorcism plan for internal parasites: (1) Tapeworms. Deworm once a year in spring, summer and autumn, and take it with a suspension of 80 100 ml per kilogram of body weight.

b) Nematodes. Deworming twice a year in spring and autumn or once a quarter. Commonly used medications:

Levamisole is given at 8 10 ml per kilogram of body weight in dissolved water. Avermectin injection, milligram per kilogram of body weight intramuscularly. Prothiobendazole, given at 5 10 mg per kilogram of body weight.

2. To remove ectoparasites, it can be injected subcutaneously with avermectin injection according to milligrams per kilogram of body weight in spring and autumn every year, or with avermectin premix, mixed with 2 grams per 1000 kg of feed for 7 days. 3. Precautions for the use of anthelmintic drugs for sheep diseases: (1) Prothiobendazole has a repellent effect on nematodes, flukes and tapeworms, but it is ineffective against ectoparasites such as scabies mites.

When used to repel flukes and tapeworms, the dosage should be larger than that of nematodes. Prothiobendazole has been reported to have teratogenic effects in embryos. Therefore, special caution should be exercised when using the drug on pregnant ewes, and it is best for ewes to be dewormed before breeding.

2) Some anthelmintic drugs, if used alone for a long time or unreasonable, parasites have become resistant to the drug, which sometimes causes poor anthelmintic effect. The prevention of drug resistance can be solved by reducing the number of drug uses, rational drug use, and cross-medication. (3) At present, the dosage forms of avermectin include tablets, powders, injections, etc.

Some products are made of mycelium or even drug residues, and some injections are not sustained-release preparations, and the efficacy is not 28 days, and another injection is required every 5 or 6 days. ‍‍

The diagnosis can be made based on epidemiological characteristics, clinical symptoms, etc. When the symptoms are not obvious, a knife coated with 50% glycerol aqueous solution can be used to scrape the dander at the junction of healthy Huaiming and the lesion, heat and dissolve it with 10% hydrogen lead trace sodium oxide (potassium) solution, take sediment for microscopic examination, and the diagnosis can be confirmed when mites are seen. This disease is distinguished from baldness, eczema, and lodiculosus dermatitis.

In addition to the different pathogens, the lesions of bald ringworm are mostly round, the dry scab is easy to peel off, and the itching sensation is not obvious; Huaiwu eczema is non-contagious and has a mild itching sensation; Pediculosus dermatitis lesions are mild, and lice and nits are easily found; Avoid dense sheep in a dark, damp house, the house should be ventilated, dry, spacious, and transparent. When introducing sheep, you should know whether there is mite disease in advance. Always pay attention to whether there is hair loss, itching and other phenomena in the flock, find it in time, dispose of it in time, and take a medicinal bath after sheep shearing in summer.

**Scheme: 15% trichlorfon solution, this method is applied when there are fewer sick sheep. Medicated bath with aqueous solution of insecticide or phosphine emulsion:

Generally in the warm season, goat fleece and sheep shearing 5-7 days after shearing. The water temperature of the medicated bath is kept at 36 38 for about 1 minute, and the second medicated bath can be performed after 7-8 days. Let the sheep drink water before the medicinal bath to avoid accidentally drinking the medicinal liquid; Avermectin:

mg kg body weight, one subcutaneous injection.

Sheep mite disease is a ** disease caused by scabies mites or itchy mites, also known as scabies, scabies, sheep leprosy or "Sao", and its main characteristics are itching and hair loss. Sheep are mostly pruritic mites, and goats are mostly scabies. It occurs mainly in winter and late autumn and early spring.

Scabies mite disease generally begins in the soft and short-haired parts of sheep**, such as lips, corners of the mouth, nose, eye circles and the base of the ears, and then the inflammation gradually spreads to the periphery. Prurigo begins in the dense coat and the temperature and humidity are relatively constant, such as sheep mostly on the back, buttocks and tail, and then spread to the side of the body. Topical medications:

Wash the affected area with soapy water first, remove the scab, dry, and then apply the following drugs: 5 grams of trichlorfon dissolved in 100 ml of cooking oil towel; 100 grams of medicinal charcoal, 100 grams of salt, 100 ml of tung oil, mix thoroughly; 15 grams of sublimated sulfur, equal parts of gypsum powder and bleaching powder, mixed and coated. Medicated bath**:

It is suitable for the season when there are many sick sheep and it is warmer. The liquid can be used with fly venom emulsion, 1% trichlorfon solution, octathion emulsifiable concentrate, etc. Note that the aqueous solution is shouted at about 30, the medicated bath is 1-2 minutes, and the medication should be repeated 2-3 times, with an interval of 5 days each time.

Ivermectin by injection or oral, at a dose of 50-100 mg kg body weight, once a week, can be used 3 times in a row, and the effect is good. Usually we must pay attention to the health of the flock, so as to prevent it before it happens, in order to better prevent the work, in the breeding process must closely observe the dynamics of the flock, timely find the situation of the flock, according to the different diseases of the flock, make a clear judgment, timely, early, control the disease, in order to better prevent a larger area of infection, and the control rate of the flock, so as to better breed.