Swine cokeworm disease is one of the protozoal diseases, the main transmission route is ticks, suffering from pig mental weakness, body surface wasting, loss of appetite, pig farms if suspected of being sick pigs, should be a differential diagnosis, confirmed to be this disease, you have to carry out symptomatic medication treatment. At the same time, pay attention to the prevention of pigs, which can reduce the occurrence of the disease.
First, the symptoms of swine scorched worm disease
Swine burnworm disease is a protozoal disease caused by the invasion of red blood cells by scorched worms entering the pig body through tick blood sucking, and is characterized by anemia, weakness, neurological symptoms and yellow urination in sick pigs. Scorch worms multiply and develop in ticks, tick bite healthy pigs can infect the disease, the insect body into the blood, drill into the red blood cells, so that a large number of red blood cells are destroyed and the disease occurs. 1 to 8 worms can be found in a red blood cell, and the infection rate of red blood cells is 21% to 60%.
1. Clinical symptoms
The body temperature of the sick pig is 40.5 ~ 42.0 ° C, the residual heat lasts for 3 to 7 days, or the residual heat does not recede until death, before death it drops to 35 ~ 36 ° C, the body is emaciated, the hair is rough, the nasal mirror is dry and cold, the conjunctiva is pale and yellow, sometimes coughing, wheezing, abdominal breathing, the lungs have wet gong sounds, palpitations, and irregular rhythms. At the beginning of the disease, the sick pig eats less, after the waste food, the intestinal sound is weak, the initial feces are like balls, attached to the mucous membrane and blood, some of the later diarrhea, the feces are yellowish red, and the urine is brown. Some have enlarged joints of the extremities and swollen abdomen. Some are depressed and lethargic until they die of exhaustion. Some spin in circles, spasms, limbs scratching, lack of movement, and staggering gait.
2. Autopsy symptoms
The blood is dark red and thin and does not coagulate. Skin fat and even connective tissue are mildly yellowed. There is a large amount of reddish yellow liquid in the abdominal cavity. The liver is enlarged to 1.5 to 2.5 times normal, the surface is yellow, the texture is hard, fragile, and it is reddish brown or gray-brown nutmeg-like. The gallbladder is enlarged and accumulates soy sauce-like bile. The hilar lymph nodes are markedly enlarged, bleeding necrosis, and the lymph nodes in other parts are mildly enlarged and bleeding. The spleen is enlarged and softer. There are a large number of bleeding spots in the mucous membrane of the bladder, and bleeding spots, especially in the heart valves, are obvious. Enlarged lungs, local lobules hyperemia.
Second, the diagnosis and differentiation of swine scorched worm disease
Blood smears, Reye's stains, microscopic examination of the presence of round, ring-shaped, oval, single pear, or double pear-shaped cokeworms in red blood cells. Care should be taken to distinguish this disease from porcine erythrocytic disease and toxoplasmosis of pigs.
Third, the treatment of swine scorched worm disease
1. Treat "Bernier" with 5 mg/kg body weight, mixed with distilled water into a 5% solution, intramuscular injection, and injected again the next day in pigs that did not return to normal, the effect was very good.
2, acaprine 0.8 mg / kg body weight, with distilled water mixed into 5% solution, subcutaneous injection, 1 hour before injection of 5 mg of atropine, the effect is good.
Fourth, the preventive measures of swine scorched worm disease
1. Preventive injection of the above drugs is carried out for pigs that have not yet developed the disease to prevent the occurrence and epidemic of the disease.
2. When preventing, the ticks of pig bodies, pig houses and pastures should be eliminated, and bedding grass should not be introduced from areas with ticks, and pigs should not be co-raised with cattle and sheep to prevent the spread of the disease.
3. If the disease is found, immediately isolate and check whether the pig body has ticks, and if so, it should be killed immediately.