Dr. R. A. MathakiyaBhargav B. Limbachiya2020-07-072020-07-072018http://krishikosh.egranth.ac.in/handle/1/5810148770The poultry production chain has constant advances in intensive management of animals and operations technology in genetics, nutrition and animal health. Higher quality products and food security ensure the credibility. However, the intensification of the production may cause increase health problems. Among various diseases, colibacillosis is one of the most important disease, which causes heavy economic losses in broilers as well as in layers. It is caused by pathotype APEC belongs to the group ExPECen-USnullDETERMINATION OF ANTIBIOTIC SUSCEPTIBILITY BY PHENOTYPIC AS WELL AS GENOTYPIC METHODS AND MOLECULAR CHARACTERIZATION OF AVIAN PATHOGENIC ESCHERICHIA COLIThesis