Characterization of Prototheca zopfii Associated with Outbreak of Bovine Clinical Mastitis in Herd of Beijing,China |
| |
| Authors: | Jian Gao Han-qi Zhang Jian-zhong He Yang-hua He Shu-mei Li Rong-guang Hou Qiao-xing Wu Yang Gao Bo Han |
| |
| Affiliation: | (1) College of Veterinary Medicine, China Agricultural University, Yuan Ming Yuan West Road No.2, Haidian District, Beijing, 100193, China;(2) College Animal Science and Technology, China Agricultural University, Beijing, 100193, China;(3) Beijing Laboratory Animal Research Center, Beijing, 100012, China; |
| |
| Abstract: | Prototheca zopfii (P. zopfii) has become an important cause of bovine mastitis in many countries. In the present study, to better understand the occurrence of one clinical mastitis (CM) outbreak due to P. zopfii, the molecular characterization and resistance patterns of the microalga were described. P. zopfii strains were isolated from 17 of 23 quarters, which suffered CM in the outbreak, and 7 of 46 CM recovered quarters before the outbreak, as well as 2 of 75 environmental samples in the dairy farm. All strains were identified as genotype 2 by genotype-specific PCR analysis. Results of in vitro antimicrobial and antifungal susceptibility tests indicated that these strains were resistant to majority of tested drugs, with the only exception of amphotericin B, nystatin, streptomycin, gentamicin, and amikacin. This is the first report about CM outbreak caused by P. zopfii in China. These data suggest that P. zopfii may represent a serious risk in the studied herd, and this microalga could be an important potential pathogen causing mastitis in dairy herds of Beijing. |
| |
| Keywords: | |
| 本文献已被 PubMed SpringerLink 等数据库收录！ |
|
