Journal of Veterinary Medical Science | |
Bacteriological Survey of Mammary Secretions from Prepartum Heifers in a Dairy Herd with a High Prevalence of Staphylococcus aureus Infection | |
Hajime NAGAHATA3  Takeshi OKUHIRA1  Hidetoshi HIGUCHI3  Hiroshi MARUTA3  Akira ANRI2  | |
[1] Rakuno Gakuen University Farm;Large Animal Clinic and Research Center;Department of Animal Health, School of Veterinary Medicine, Rakuno Gakuen University | |
关键词: prepartum heifer; intramammary infection; Staphylococcus aureus; | |
DOI : 10.1292/jvms.68.1359 | |
学科分类:兽医学 | |
来源: Japanese Society of Veterinary Science | |
【 摘 要 】
References(18)This study was performed to examine the bacteriological findings in 58 mammary secretions from 15 heifers at 4-5 weeks before parturition, and to evaluate whether a high prevalence of S. aureus infection in lactating cows affects the occurrence of S. aureus infection in prepartum heifers in the dairy herd. A total of 86.7%(13/15) of the heifers and 60.3%(35/58) of quarter milk samples from the heifers were bacteriologically positive. No S. aureus isolate was detected in mammary secretions from the heifers. Coagulase-negative staphylococcus (CNS) species were predominantly detected in 54.3%(19/35) and Streptococci other than Streptococcus agalactiae were isolated from 22.9%(8/35) of the quarters. A high S. aureus prevalence in the herd may not necessarily be a decisive factor for S. aureus infection in heifers.
【 授权许可】
Unknown
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RO201911300616658ZK.pdf | 135KB | download |