RISK FACTORS AND SPREAD OF CYSTOISOSPORA SUIS AND CRYPTOSPORIDIUM SUIS IN FARMS OF ODESA REGION

Abstract

This study aimed to determine the prevalence of Cystoisospora suis and Cryptosporidium suis oocysts in fecal samples from suckling piglets in farms in the southern and northern districts of Odesa Region, to assess the consistency of feces and oocysts, as well as risk factors associated with the hydrothermal regime of the area. Cystoisospores wer e detected by the McMaster method, and ryptosporidia by the Kester and Romanowski Giemsa cystoisospores and cryptosporidia was 34.5%, while in the farms of Podil District it was 42.2%. The isolation of Cystoisospora suis oocysts was high in both districts, ranging from 27.2 0.4 to 32.1 0.5 oocysts per 10 microscope fields of view. In comparison, the main intensity of Cryptosporidium suis ran ged from 13.6 0.2 to 19.8 0.6 oocysts per 10 microscope fields of view. In the farms of the southern part of Odesa Region, which was characterized by a very severe drought in 2023, Cystoisospora suis was most frequently detected in sucking pigs (27.6%) 27.6%). Oocysts of Cystoisospora suis were found in 82.7% of liquid feces and 17.3% of solid feces. In the farms of the northern part of Odesa Region with sufficient humidity, Cryptosporidium suis was most frequently detected in suckling pigs (25.4%). In the liq uid feces of 27.7% of piglets Cryptosporidium suis oocysts were detected with the main intensity from 7.3 0.2 to 9.1 0.1 oocysts per 10 microscope fields of view, while in the formed feces of 72.3% of piglets, the main intensity of the infection was fr om 13.2 0.1 to 16.1 0.1 oocysts per 10 microscope fields of view.