Fascioliasis Epizootology and Pathological and Anatomical Changes in Cattle in the Altai Region

Abstract

Fascioliasis in cattle continues to cause significant eco-nomic damage to cattle breeding in the Region due to de-creased weight gains of infested young animals and milk yields in cows culled due to liver affected by fascioliasis. On farms infected by liver flukes, there is increased culling of young animals and cows at the beginning of lactation with signs of hepatitis, jaundice, digestive disorders and decreased productivity against the background of general cachexia. The study of fascioliasis epizootology in cattle was carried out at different times of the year. All calves before and after infection were systematically subject to clinical, hematological, biochemical and helminthological studies as well as periodically weighed. The studies were carried out in the morning, usually before feeding the ani-mals. The animals were observed for five months after infection. It was determined that fascioliasis in cattle was found in the forest-steppe zone (the floodplains of the Ob, Charysh and Chumysh rivers). The increased percentage of invasion intensity to 30.2% in the autumn period is asso-ciated with a new wave of fasciole infection in cattle. Ac-cording to the findings of post-mortem examination, in win-ter, spring and summer, only imaginal fascioles were found. Thus, in the forest-steppe zone of the Altai Region, all age groups of cattle were affected by fascioles with prevalence of 10.4% which ranged from 8.7% to 13.5%. In autumn, imaginal and young fascioles were found

Monitoring of Epizootic Welfare of the Altai Region in Terms of Food-Borne Parasitic Zoonotic Diseases

“…Многолетние исследования свидетельствуют о том, что заражение животных зоонозными гельминтозами ежегодно регистрируется в Алтайском крае [4]. При этом темпоральный процент инвазированности крупного рогатого скота цестодозами свидетельствует о тенденции к росту экстенсивности инвазии [5].…”