Epidemiological survey of bovine Eimeria species in adult cattle in the Republic of Korea

3^rd International Conference on Veterinary & Livestock

November 02-03, 2017 Bangkok, Thailand

Du-Gyeong Han, Ji-Hyoung Ryu, Jeong-Byoung Chae, J S Chae, D H Yu, J Park, H C Kim, B K Park and K S Choi

Kyungpook National University, South Korea
Seoul National University, South Korea
Gyeongsang National University, South Korea
Chonbuk National University, South Korea
Kangwon National University, South Korea
Chonnam National University, South Korea

Posters & Accepted Abstracts: J Vet Sci Technol

Abstract :

Bovine coccidiosis is caused by Eimeria spp. and is considered a problem of livestock productivity worldwide. Th e clinical signs of coccidiosis are mainly characterized by growth retardation and water or hemorrhagic diarrhea. It occurs commonly due to poor hygiene and over-crowded conditions. So far, more than 20 Eimeria species have been identifi ed and usually infections with one species were found. Th e present study was performed to report the prevalence of Eimeria infections and investigate the correction between Eimeria spp. and diarrhea. A total of 346 stool samples (160 from Korean native cattle and 186 from Holstein cattle) were collected from 10 diff erent regions in the Republic of Korea (ROK). Of the 346 stool samples overall prevalence of Eimeria spp. was 46.2% (160/346). Th e prevalence of Eimeria spp. in Korean native cattle and Holstein cattle were 38% (61/160) and 62% (115/186), respectively. A total of 8 Eimeria spp. was found with the following prevalence��?s: E. bovis 79% (127/160), E. zuernii (73%, 117/160), E. aubernensis (29%, 46/160), E. subspherica (14%, 23/160), E. bukkidonensis (5%, 8/160), E. ellipsoidalis (2%, 3/160), E. cyclindrica (1%, 2/160) and E. alabamensis (0.5%, 1/160). Mixed infections of 2-4 Eimeria species were found in 76% (121/160) of cattle. Diarrhea was not seen in these cattle. Th ese results show that E. bovis and E. zuernii are prevalent in Korean cattle populations, especially Holstein cattle. Although E. bovis and E. zuernii are known to be pathogenic, these pathogens did not contribute to the clinical eff ects in adult cattle. Further studies are needed to identify the association between multiple Eimeria spp. infections and diarrhea in calves

Biography :

Du-Gyeong Han is a student and an affi liate of Kyungpook University, South Korea.