Ascarops

Ascarops is a genus of parasitic nematodes belonging to the family Spirocercidae. These worms are primarily known for their parasitic relationship with swine, particularly the domestic pig ( Sus scrofa domesticus), although other mammals can also be infected.

Ascarops strongylina is the most well-known species within the genus. Its life cycle is indirect, requiring an intermediate host, which is typically a dung beetle. Pigs become infected by ingesting infected beetles.

The adult worms reside in the stomach of the pig, embedded in the gastric mucosa. Heavy infections can lead to gastritis, ulceration, and reduced weight gain in the affected animals. Diagnosis is typically made through fecal examination for the presence of characteristic eggs or at necropsy by identifying the adult worms in the stomach lining. Control measures focus on sanitation practices to minimize exposure to infected beetles.