CASE REPORT: THE EMERGENCE OF ANTICOCCIDIAL-RESISTANT STRAINS OF Eimeria IN TAIWAN

Abstract

Although anticoccidial-resistant Eimeria spp. have been reported in avian industry, it has yet to be officially identified in dairy goats in Taiwan. This paper describes Eimeria strains, identified from a five-week-old kid, found to be resistant to sulfonamide drugs, due to the fact that the number of oocysts per gram of feces (O.P.G.) remained to be 9200 after seven consecutive days of treatment and only dropped to zero after another two consecutive days of treatment with toltrazuril. We believe this is the first paper to identify the emergence of an anticoccidial-resistant Eimeria spp. strain, and further investigation should be warranted. This paper would help farmers and veterinarians consider an alternative treatment protocol when dealing with coccidiosis in the goat industry.