Etiopathology of dead-in-shell embryos of indigenous chicken egg

The present study was undertaken to study the etiopathology of dead-in-shell embryos of chicken egg procured from the indigenous chicken. In total, 1336 egg were incubated, out of which 416 (63.90%) were found with dead-in-shell embryos and 235 (36.09%) were infertile. Various abnormalities detected in the dead-in-shell embryos were malposition (43), malformation (3), dehydrated (21), adhesion (10), pathological condition (128) and undiagnosed (211). Out of 128 dead-in-shell embryos having pathological condition, 40 dead-inshell embryos were sent for cultural examination from which 25 embryos showed septicemia. The organisms isolated from such embryos were Streptococcus species and Escherichia coli. From the present study it can be concluded that there may be several reasons for getting poor hatchability. Therefore, every attempt have to be made to enhance the hatchability of eggs in a breeding flock.