Study of Antibiotics residual in Raw Milk in Sanadaj

In order to study the residual of antibiotics in raw milk of dairy products from one factory, this research carried out in 2008.The number of samples included 7,1&3 from three groups of raw milk collecting, semi industrial &industrial farms,respectively. The expriment was conducted in the groups and regular replications in the intervals of one week. Total samples (i.e167 samples) were analysed by the method of Copan test. The correlation between depended & independent variables were analyzed by Kruskal Wallis test. The results of 103 test were negative and 64 test were positive.The number of samples in the 3 mentions groups were 61,9&97 and the number of positive samples were 2,1&61 (i.e 3.3%,11.1%&62.9%) respectively.The results of this research indicated that antibiotic residual from the samples of industrial farms were superior than two other groups, and the semi industrial farms were superior than the first group.