Colibacillosis in reproducing heavy reproductive hens

Abstract

The colibacilosis in breeding hens is given by Gram negative bacteria, enterobacteria pathogenic avian pathogenic Escherichia coli (APEC), it has a high percentage of polymorphisms and plasticity in its genes, research reports common macroscopic findings: salpingitis, peritonitis and polyserositis, which entails At the death of the bird, three routes of contamination are defined, ascending through the cloaca of the bird, entry by respiratory or bacterial translocation from the intestine, the diagnosis of colibacillosis, is made from the history of the house, making necropsies and taking samples from swabs or tissue from organs such as oviduct, lung, heart or affected organs are carried to means such as McConkey, eosin-methylene blue or agar drigalki for their isolation, specific tests of the Esceherichia coli are known based methods in phenotypes such as serotyping O/H immunological, bacteriophage typing, electro foresis with multilocus enzymes, MALDI-TOF and methods based on genotypes such as restriction length polymorphism (RFLP), liminex-based suspension assay, amplified fragment length polymorphism (AFLP), optical mapping, vaccines for this bacterium are not have developed to perfection since it presents an immune response to its counterparts, but no resistance to challenges with heterologous, research continues to carry out vaccines that may present an immune response to several serotypes of the bacteria, for now the effective way to control the bacteria biosafety and prevention protocols to maintain the health of the animal.