Toxoplasmosis in pigs is a hematologic protozoa disease caused by Toxoplasma gondii

Toxoplasmosis in pigs is a hematologic protozoa disease caused by Toxoplasma gondii. The incidence is more frequent from May to October, and the incidence of piglets aged 3 to 5 months is severe.

1. Clinical symptoms

Affected pigs are depressed, conjunctival cyanosis, purple-red patches on the skin, body temperature rises to 40 °C-42 °C; breathing difficulties, cough; sometimes enteritis and neurological symptoms; pregnant sows can have premature birth or produce underdeveloped piglets or stillbirths.

Second, the autopsy changes

Sick and dead pigs have swollen lymph nodes throughout the body with small necrotic spots; lung hyperedema, lobular interstitium widening, which is filled with translucent jelly-like exudate; there is a large amount of mucus and foam in the trachea and bronchi, and some pneumonia are complicated; the spleen is enlarged and brown; the liver is gray-red and scattered in necrosis; and the mesenteric lymph nodes are enlarged.

3. Laboratory diagnosis

Liver, spleen, lung and other disease material smear staining, in the oil microscope can see the crescent-shaped or fusiform insect body can be confirmed.

4. Treatment methods

Sulfadiazine and pyrimethamine are used in combination, mixed according to the instructions (first doubling), 2 times a day for 3-5 days.