Abstract
Eimeria spp. cause the disease coccidiosis, which results in chronic wasting of livestock and can lead to the death of the animal. The disease, common worldwide, has caused huge economic losses to the cattle industry in particular. This is the first systematic review and meta-analysis of the prevalence of bovine Eimeria in China. Our search of five databases including PubMed, ScienceDirect, China National Knowledge Infrastructure (CNKI), Chongqing VIP, and Wan Fang for articles published up to February 29, 2020 on the prevalence of Eimeria in cattle in mainland China yielded 46 articles, in which the prevalence of cattle ranged from 4.6% to 87.5%. The rate of bovine Eimeria infection has been decreasing year by year, from 57.9% before 2000 to 25.0% after 2015, but it is still high. We also analyzed the region, sampling years, detection methods, feeding model, seasons, and species of bovine Eimeria. We recommend that prevention strategies should focus on strengthening detection of Eimeria in calves in the intensive farming model.
Highlights
Eimeriosis is caused by protozoa of the phylum Apicomplexa, family Eimeriidae and genus Eimeria, one of the most common parasitoses in cattle throughout the world [9]
The results showed that pooled prevalence of bovine tuberculosis in Ethiopia is about 5.8%, and it proved that intensive cattle husbandry was associated with increased prevalence
We applied the following inclusion criteria: (1) the purpose of the study was to check the prevalence of Eimeria in cattle; (2) the study provided the total number of cattle tested and prevalence; (3) each sample was from one type of cattle; (4) the study sample size was greater than 30; and (5) the study design was cross-sectional
Summary
Eimeriosis is caused by protozoa of the phylum Apicomplexa, family Eimeriidae and genus Eimeria, one of the most common parasitoses in cattle throughout the world [9]. Eimeria live in the intestinal cells of infected cattle [5]. Eimeria oocysts develop faster in a humid environment, and it is easy for cattle to be infected when the feed composition changes suddenly, the animals are already suffering from infectious disease, or other factors have caused decreased resistance [76]. Eimeria can infect various breeds of cattle. Infection is more common in calves less than one year old, and adult cattle often play the role of carrier. Cattle will be infected with at least two species of Eimeria at the same time, and as many as eight species have been detected in a single
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