Ascarid nematodes in domestic and wild terrestrial mammals.

This research study discusses the biology of ascarid nematodes (a family of roundworms) and their role in affecting a variety of domestic, farm and zoo animals – their presence notably prominent in carnivores and primates. Factors affecting ascarid infection such as the environment, age, breed, husbandry system, hygiene, and treatment plans are emphasized.

About Ascarid Nematodes

• Ascarid nematodes are a family of parasitic roundworms, which commonly afflict a variety of mammals, both domestic and wild.
• These parasites can pose significant health risks to their hosts, causing a range of diseases.

Ascarid Infection in Farm Animals

• The study focuses on the prevalence of ascarid infection in farm animals, focusing on horses and swine.
• In these animals, infection with common roundworms like Parascaris equorum (in horses) and Ascaris suum (in swine) is influenced by various factors.
• These factors include environmental conditions which affect larval development and egg survival, age of the host animal, breed, husbandry system (the method by which the animals are raised), hygiene standards, and the treatment schedules.

Ascarid Infection in Carnivores

• The study discovered that carnivorous animals, including dogs, cats, and foxes, are particularly susceptible to two particular nematodes, Toxocara canis and T. cati.
• Over a one-year period, 57.1% of tested animals in Felidae, Ursidae and Canidae families in a zoo in Wrocław were found to have ascarid infection.
• The prevalence of T. canis in the Canidae family was notably high, standing at 66.7%, while T. cati was found in 14.3% of the Felidae family. T. leonina, another nematode, was found in 57.1% of the Felidae tested.

Ascarid Infection in Primates

• The study also found ascarid infection in primates during a parasitological survey. Ascaris lumbricoides, a typical parasite of primates, was observed in gorillas, chimpanzees, and orang-utans.

The study concludes that ascarid infection is a widespread issue across various animal groups, underlining the need for effective preventive and treatment procedures.