How to treat ascariasis in dogs in Tervodan, Belgium? Dog ascariasis is caused by Ascaris canis and Ascaris leonata parasitizing the small intestine and stomach of dogs. It is widely distributed in my country and mainly harms puppies aged 1 to 3 months, affecting growth and development. Severe infection can lead to death.

1. Introduction to Ascariasis

1. Canine roundworms (Toxocara canis) are light yellowish white in color, with three lips on the head and a narrow neck wing membrane on the side of the body.

2. Canine roundworm eggs are excreted in the feces and develop into infectious eggs under suitable conditions.

2. Causes of Ascariasis

1. After puppies under 3 months old swallow infective eggs, larvae hatch in the intestines. The larvae penetrate into the intestinal wall, pass through the lymphatic system to the mesenteric lymph nodes, and then reach the liver through the blood stream, and then follow the blood stream. After reaching the lungs, the larvae pass through the alveoli, bronchioles, and bronchi, and then are swallowed into the stomach through the larynx. They further develop into adult worms in the small intestine. The entire process takes 4-5 weeks.

2. After an older dog swallows infectious eggs, the larvae travel to various tissues and organs of the body with the blood flow and form cysts. The larvae remain active but do not develop further. Female dogs containing cysts in the body will become pregnant. , the larvae are activated and migrate through the placenta to the fetal liver to cause intrauterine infection. After the fetus is born, the larvae migrate to the lungs, and then migrate to the gastrointestinal tract to develop into adult worms. Mature canine roundworms appear 23-40 days after the birth of the puppies.

3. Newborn puppies can also be super-infected by sucking colostrum. After infection, the larvae develop directly into adult worms in the small intestine.

4. Lion Ascaris eggs develop into infective eggs under suitable external conditions. After being swallowed by a dog, the larvae escape in the small intestine, burrow into the intestinal wall, develop and then return to the intestinal cavity, where they develop into adult worms in 3-4 weeks.

3. Clinical symptoms of ascariasis

1. Roundworms are parasitic in adult dogs, and their harm is not very obvious. However, puppies have a large number of roundworm parasites, and the intestinal wall is irritated and causes various disorders. Sick dogs have symptoms such as gradual weight loss, pale mucous membranes, loss of appetite, vomiting, diarrhea and then constipation, abdominal distension, malnutrition and anemia.

2. Dogs often like to grab dirt, wood and other foreign objects, and occasionally have epileptic spasms.

3. Developmental delay. When the infection is severe, roundworms are often excreted in the vomit and feces, and the diagnosis can be confirmed.

IV. Preventive measures against ascariasis

How to prevent and treat roundworms in dogs? Regular inspection and deworming are the most important:

1. Puppies should be checked once a month, and adult dogs should be checked once a quarter:

2. If a sick dog is found, treat it immediatelyFor deworming: you can use levamisole, 10 mg per kilogram of body weight, orally; or use mebendazole, 10 mg per kilogram of body weight, twice a day for two days; or use pyrantel (anti-insecticide) 5-10 mg per kilogram of body weight. 10 mg, taken orally; or take 100 mg of piperazine citrate per kilogram of body weight, taken orally.

3. Clean and sanitary, change the breeding environment: take the cleanliness of the environment, troughs, and food seriously, remove feces in a timely manner, and perform fermentation processing to eliminate sources of infection.