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Subclinical mastitis in cattle in Algeria: Frequency of occurrence and bacteriological isolates

Radhwane Saidi, Djamel Khelef, Rachid Kaidi
Journal of the South African Veterinary Association | Vol 84, No 1 | a929 | DOI: | © 2013 Radhwane Saidi, Djamel Khelef, Rachid Kaidi | This work is licensed under CC Attribution 4.0
Submitted: 01 September 2012 | Published: 23 May 2013

About the author(s)

Radhwane Saidi, Department of Agronomy, University Telidji Amar, Algeria
Djamel Khelef, Laboratory of Animal Health and Production, National Higher Veterinary School of Algiers, Algeria
Rachid Kaidi, Department of Veterinary Sciences, University SaadDahleb, Algeria

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The present study was carried out to determine the prevalence of subclinical mastitis in cattle in eighteen herds in the center region of Algeria. Milk samples were collected from 560 quarters of 140 cows free of clinical mastitis. The samples were subjected to California Mastitis Test (CMT) and the positive samples were analysed by bacteriological culture and Speed ​​Mam® Color. The overall quarter prevalence was 28.77% whilst animal prevalence was 28.57%.Bacteriological analysis showed that there was a wide range of bacteria that cause these infections. Staphylococcus aureus (40%) was found to be the most prevalent organism followed by Streptococcus spp. (12.5%), Enterobacteriaceae (2.5%), Pseudomonas spp. (2.5%), Staphylococcusaureus + Streptococcus spp. (12.5%), Streptococcus spp.+ Escherichia coli (7.5%), S. aureus + Mycoplasma spp.(7.5%), and S. aureus +Streptococcus spp.+ E. coli (5%).


Bovine; Sub-clinical mastitis, California Mastitis Test, Bacteriology


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