Chickens are gallinaceous birds
like pheasants and quail--and their young hatch out able to walk, feed, and drink for themselves.
Abstract: Squamous cell carcinoma has been reported in a variety of bird species, most commonly psittacine and gallinaceous birds
Highly pathogenic avian influenza (HPAI) A virus infection of gallinaceous birds
Passerine birds and gallinaceous birds
appear more susceptible than other species, fitting with the species natural history of foraging on the intermediate host.
These influenza viruses are a potential threat to the poultry population in South Korea, including gallinaceous birds
during movement of domestic ducks through the distribution network of live bird markets.
Populations of many gallinaceous birds
, including northern bobwhite (Colinus virginianus) and scaled quail (Callipepla squamata), show extreme variation in densities regionally and from year-to-year (Speake & Haugen 1960; Schemnitz 1961; 1964; Campbell 1968; Campbell et al.
The virus infects several species of gallinaceous birds
but has not been shown to cause disease in other avian classes.
Outbreaks in poultry typically caused high mortality rates among gallinaceous birds
, especially layer, broiler, and native chickens.
However, in some species (eg, gallinaceous birds
, ratites) the rectum is looped or folded.
However, the Mongolia/2005 strain was equally or more lethal for the 4 species of swans in this study as other HPAI virus (H5N1) strains have been in a variety of age-matched or younger wild avian species, including gallinaceous birds
, waterfowl, and gulls (19,20).
TBEV has been isolated, or serologically indicated, from several bird species, especially anatids and gallinaceous birds
, and most often from Eastern Europe or Russia (9).
Therefore, the limited attractiveness of gallinaceous birds
to larval Ixodes ticks may render them less important than certain passerine birds as natural reservoir hosts for Lyme disease spirochetes.
22-26) Avian leukosis virus causes B-cell lymphomas mainly in gallinaceous poultry, and reticuloendotheliosis virus has been associated with either B- or T-cell lymphomas in gallinaceous birds
, geese, and a European starling (Sturnus vulgaris).
Cutaneous mast cell tumors have previously been documented in owls (30,31) and gallinaceous birds
24,25) However, clinical disease in gallinaceous birds
has been described.