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Research
2.
Antibacterial susceptibility profiles of
subclinical mastitis pathogens isolated in Batna
and Setif governorates (east of Algeria) -
Mamache Bakir, Rabehi Sabrina, Meziane Toufik
Vet World. 2011; 4(12): 537-541
doi: 10.5455/vetworld.2011.537-541
Abstract
Sub-clinical mastitis is a main pathology of dairy
husbandry because it is not clinically recognized
by the owners and the veterinarians. For this
reason, its economic loss is usually
underestimated in milk production. This study has
been undertaken in order to evaluate the
epidemiologic situation of sub-clinicalmastitis in
Batna and Setif governorates (East of Algeria).
For this purpose, a detailed bacteriological study
of all bacterial strains isolated from
sub-clinical mastitis followed by a study of their
antibacterial susceptibility profiles has been
undertaken. 89 bacterial strains distributed as
follows were studied: 27 strains of staphylococci
among which 23 were coagulase-negative
staphylococci (CNS) that are generally
incriminated in sub-clinical mastitis. 39 strains
of streptococci among which 10 were Lactococcus
lactis ssp lactis strains. 23 strains of
enterobacteria represented mainly by Escherichia
coli (E.coli). All these bacterial strains were
isolated from cow milk of 3 different farms. The
antibacterial susceptibility profiles have
revealed a susceptibility of the isolated strains
to a large number of antibiotics mainly to the
Neomycin, the Cephalexin and the Spiramycin.
Keywords: Sub-clinical mastitis, antibiotic,
susceptibility profiles, milk, cow, bacterial
strain.
