Tracing Of Staphylococcus Aureus Phages 42D In Farm Animals

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 werecollected from diseased animals (mastitic milk, Abscesses, nasalswabs) 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 from57.9% in buffaloes, 32.8% in goats, 30% in cows and 24.7% in sheep.The biological and biochemical characteristics of Staphylococciof animal origin were carefully studied. The routine tests forcoagulase 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 incow’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 Staphylococcias a primary or a secondary pathogen in animal mastitis.