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1 October 2012 Prevalence of Coccidial Infection in Dairy Cattle in Shanghai, China
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Abstract

The prevalence of coccidial infections in dairy cattle was examined in Shanghai from November 2010 to March 2011. In total, 626 fecal samples from 24 dairy farms were examined; oocysts were identified to the species level based on morphological features. All herds were infected with Eimeria species. The overall prevalence of coccidia was 47.1%, with the highest prevalence in <4-mo-old calves (51.8%) and the lowest in >12-mo-old cattle (27.0%). The number of oocysts per gram of feces was significantly higher in young calves than in weaners and adults. Ten species of Eimeria were identified, among which Eimeria ellipsoidalis, Eimeria bovis, Eimeria zuernii, and Eimeria alabamensis were the predominant species. Concurrent infection with 2–8 species was common.

American Society of Parasitologists
Hui Dong, Qiping Zhao, Hongyu Han, Lianlian Jiang, Shunhai Zhu, Ting Li, Chunlin Kong, and Bing Huang "Prevalence of Coccidial Infection in Dairy Cattle in Shanghai, China," Journal of Parasitology 98(5), (1 October 2012). https://doi.org/10.1645/GE-2966.1
Received: 3 September 2011; Accepted: 1 May 2012; Published: 1 October 2012
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