Efficacy of the AHI Mastitis Detector for the Diagnosis of Bovine Mastitis

Park, Yong-Ho; Kim, Keum-Hwa; An, Soo-Hwan; Kim, Dong-Sung

Korean Journal of Veterinary Research 1982;22(2):273-278.

Yong-Ho Park, Keum-Hwa Kim, Soo-Hwan An, Dong-Sung Kim

Institute of Veterinary Research

전도율측정법(傳導率測定法)(AHI Mastitis Detector)을 이용(利用)한 유방염진단(乳房炎診斷)의 야외적용시험(野外適用試驗)

박용호, 김금화, 안수환, 김동성

농촌진흥청 가축위생연구소

Abstract

A total of 136 dairy cows were subjected to test for bovine mastitis by AHI mastitis detector, microbiological test (MT) and California mastitis test (CMT). The results obtained were summarlized as follows: MT indicated that the most important causative microorganisms isolated from mastitic milk were Staphylococcus aureus (59.3%), Staphylococcus epidermidis (16.4%), Streptococcus agalactiae (12.4%) and Streoticoccus uberis (4.4%). In Holstein breed, the critical threshold of electrical conductivity values of normal and mastitic milk were found to be less than $6,900{mu}S$ and above, $7,700{mu}S$, respectively. Although there was goad agreement (92.0%) between AHI mastitis detector test and CMT for the diagnosis of bovine mastitis, the diagnostic efficiency of AHI mastitis detector (80.0%) was higher than that of CMT (74.0%) when compared with microbiological findings. In addition, handiness and objectivity of AHI mastitis detector for the detection of mastitic milk suggested that this could effectively be used for the diagnosis of both clinical and subclinical bovine mastitis in field.