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Abstract
This work reports the bacteriological study and relative frequency of Staphylococcus isolated from 164 strains, taken from farm animals. The aim to review and reevaluate the Staphylococcal population of cows, bubbaloes, sheep and goats.
Atotal of 401 samples were investigated. The samples were
collected from diseased animals (mastitic milk, Abscesses, nasal
swabs) and from apparently healthy animals (Milk and nasal swabs).
The population incidence of Staphylococci isolation was
(40.9%), among different animal samples. The rate ranged from
57.9% in buffaloes, 32.8% in goats, 30% in cows and 24.7% in sheep.
The biological and biochemical characteristics of Staphylococci
of animal origin were carefully studied. The routine tests for
coagulase and acetoin production plus the rapid fermentation of maltose were used as key tests. In addition tellurite reduction which considered the test of choice in identification of animal’s S.aureus strain was used.
Staphylococcus spp as cause of mastitis in cows, buffaloes,
sheep and goats was studied. The prevalence rate of S.aureus in
cow’s mastitic milk was (17.3%) in buffaloes (37.6%) in sheep
(33.3%) and in goats was (71.4%) this indicate the role of Staphylococci
as a primary or a secondary pathogen in animal mastitis.