
"Poultry" is defined as livestock that are chickens, turkeys, ducks, waterfowl and other birds raised in the farm, excluding pigeons and doves. Diagnostic testing may incorporate ELISA Test, PCR Test other diagnostic tests. Currently different serological tests are also available in the laboratories such as agglutination test, agar gel precipitation, HI (Haemagglutination Inhibition) test, ELISA, immunodot and seroneutralization. Serologic testing is a critical apparatus utilized as a part of the poultry industry for diagnostic testing and monitoring of livestock birds. Diagnosing testing of various bird infections include taking tissue from the livestock birds affected organs, preservation of the tissue, and distinguishing the infection by minute examination, which most labs are prepared to do. In any case, if a conclusive determination can't be achieved, fresh solidified tissue from the infected birds are taken and sent to the research facility for additionally testing. Two infections or bird disease mainly, Marek's disease and avian reticuloendotheliosis are profoundly infectious and can cause tumor like diseases (cancer), generation losses of chickens and death of livestock animals. Marek's disease typically influences youthful grown-up chickens, while reticuloendotheliosis contaminates chickens and additionally other poultry—turkeys, ducks, geese and quail.