Prevention and treatment of fascioliasis in cattle and sheep

Fasciola hepatica of cattle and sheep is a serious parasitic disease caused by Fasciola hepatica parasitic in the liver and bile duct of cattle and sheep. The disease can cause acute and chronic hepatitis and cholangitis in cattle and sheep, accompanied by systemic poisoning and nutritional disorders, which reduces the production performance of cattle and sheep, causes a large number of deaths of young animals, and brings huge economic losses to animal husbandry production. The development of Fasciola hepatica needs an intermediate host, freshwater snail, so the disease is prevalent regionally, especially in rainy season and flood areas.

1. Main symptoms

Acute infection often occurs in late summer and autumn, especially in young sheep, which is caused by severe infection in a short time, which can cause sudden death of affected animals, but this type is rare. Clinically, most of the affected animals showed chronic process, gradually emaciated, rough coat, pale mucous membrane, anemia, loss of appetite, abnormal ruminating, followed by periodic rumen flatulence or forestomach relaxation, constipation and dysentery occurred alternately, and edema appeared in the lower jaw and chest in the later stage. Even under good feeding conditions, the affected animals are wasting away day by day, and the female animals suffer from miscarriage or a decline in milk production, which often leads to death if left untreated.

II. Diagnosis

Diagnosis can be made according to clinical symptoms, epidemiology and fecal examination of worm eggs, and diagnosis can only be made if dead cattle and sheep find Fasciola hepatica in the hepatobiliary duct.

III. Prevention and control measures

The main results are as follows: (1) cattle and sheep are dewormed once a year in spring and autumn, rainy season and after flood, and the feces during deworming should be treated by accumulation and fermentation. Albendazole is the first choice for deworming, with a dosage of 10 mg / kg.

(2) spraying 1/100000 copper sulfate solution in swamps, ponds, ditches and other stagnant areas to kill intermediate hosts of freshwater snails, or raise birds to kill snails, and avoid grazing where there are snails as far as possible.

(3) once the disease occurs, you can take western medicine albendazole, nitrochlorophenol, liver leech net, or Chinese herbal medicine Radix Paeoniae Rubra 22 grams, Guanzhong, Mutong 19 grams, betel nut, gentian 31 grams each, alisma 12 grams, magnolia 16 grams, cardamom 13 grams, licorice 9 grams, water frying service. The dosage of calves and sheep was halved.