Parasite cenoces of the wild pig (Sus scrofa) on the Trans-Baikal Territory
https://doi.org/10.26898/0370-8799-2022-5-9
Abstract
A comprehensive veterinary study of the wild pig population on the territory of the Trans-Baikal Territory for helminthiasis and microbial transmission was carried out. The helminth fauna of wild pigs was studied and the circulation of bacterial pathogens in the population of these animals was established. The object of the research were materials obtained in the field studies on the Trans-Baikal Territory districts. The study of endoparasite infestation was conducted in 37 wild pigs aged 6 months to 3 years during 2019-2021. Infestation of wild pigs with eight different types of helminths was registered on the Trans-Baikal Territory. The maximum extent of infestation (32.4%) was recorded in Setaria labiato-papillosa. Wild pigs are infected with both imaginal helminths Setaria labiato-papillosa, Metastrongylus elongatus, Ascaris suum, Trichocephalus suis, Oesophagostomum dentatum, as well as with helminth larvae Cysticercus tenuicollis and Cysticercus cellulosae. The study of the morphology of sexually mature pathogens indicates parasitization of helminths of the genus Setaria labiato-papillosa in pigs. Out of 37 wild pigs studied, the association infestation of setariosis + ascaridosis was recorded in 12 animals, three pigs were simultaneously parasitized by ascaridosis + trichocephalus, and two animals had the association of setariosis + metastrongylosis.
Organoleptic examination of carcasses of pigs affected by associative infestation showed a 2-fold or more reduction in the thickness of the backbone and side fat in comparison with helminth-free animals. In pigs infected with ascaridosis and metastrongylosis, microbial cultures of S. typhimurium and E. rhusiopathiae were isolated from paraenchymatous organs. Parasite ecosystems with different types of helminths and helminths + highly pathogenic bacteria have been recorded in the body of wild pigs.
About the Author
A. M. Tretyakov
Research Institute of Veterinary Science of Eastern Siberia - Branch of the Siberian Federal Scientific Centre of AgroBioTechnologies of the Russian Academy of Sciences
Russian Federation
Russian Federation
Alexei M. Tretyakov, Doctor of Science in Veterinary Medicine, Director
49, Kirova St., Chita, Trans-Baikal Territory, 672039
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Review
For citations:
Tretyakov A.M. Parasite cenoces of the wild pig (Sus scrofa) on the Trans-Baikal Territory. Siberian Herald of Agricultural Science. 2022;52(5):72-78. (In Russ.) https://doi.org/10.26898/0370-8799-2022-5-9
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