Diagnostic Study of She Camel Subclinical Mastitis in Al-Hyadia District Al-Najaf Province

Abstract

| This study was carried out at Al-Hyadia arid area/Al-Najaf on 82 she camels. Based on bacterial isolation, the subclinical mastitis was detected in 24 out of 82 she camels at percentage rate of 19.68%. The highest percentage of isolates was17.68 and 12.92 for Coagulase -ve Staphylococci followed by Streptococcus spp., respectively. The percentages rate of Staphylococcus aureus, E. coli and Micrococcus spp were 10.2%, 8.16% and 4.08%, respectively. Based on bacterial isolation as confirmed diagnosis of subclinical mastitis, the milk samples with Coagulase -ve Staphylococci, E. coli and Staphylococcusaureus revealed score 3 to California mastitis test (CMT) reaction with pH ranged 7.5-6.73 and electric conductivity 8.1-7.9 ms/cm, while in Streptococcus spp. and Micrococcus revealed score 2 to CMT reaction with pH ranged 6.89-6.44 and electric conductivity 7.81-7.68 ms/cm. In conclusion, the results of the present study approved investigation of subclinical mastitis in she camel and its causative agents. Moreover, CMTcan be approved as fast and effective, but less sensitive in diagnosis of subclinical mastitis.