The availability and quality of brood habitat influences survival of gallinaceous
chicks (Hurst, 1972; Everett et al., 1980; Metzler and Speake, 1985).
In the past decade, the G1 lineage has spread mostly in gallinaceous
birds across Asia, the Middle East, and eventually North Africa, where H9N2 outbreaks were reported in Libya (2006 and 2013) (2), Tunisia (2010-2012) (3), Egypt (2011-present), and Morocco (2016) (4).
In the case of HA0 carrying multiple basic amino acids at the cleavage site of some avian strains of H5 and H7 subtypes, cleavage occurs by ubiquitous proteases, resulting in systematic viral spread and high mortality in most gallinaceous
poultry, e.g., chickens and turkeys.
- *1 any of a family (Meleagrididae) of large, gallinaceous
North American birds with a small, naked head and spreading tail, including a wild or domesticated species (Meleagris gallopavo) bred as poultry and a wild species of Central America, with eyespots on the tail *2 (slang) a failure: said esp.
Multilocus DNA fingerprints in gallinaceous
birds: general approach and problems.
Growing birds, especially gallinaceous
birds, are prone to dislocation of the intertarsal joint secondary to the medial or lateral displacement of the tendon of the gastrocnemius.
Assessments of radio-marking effects have yielded mixed results on gallinaceous
birds with early designs likely having negative demographic consequences (Withey et al.
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.
(3) Foreign objects generally are encountered in ratites, gallinaceous
birds, waterfowl, and psittacine birds.
The high pathogenicity for gallinaceous
poultry was confirmed; intravenous pathogenicity index for 1 isolate (A/tufted duck/Germany-SH/AR8444/2016) was 2.93, comparable to the 2.81 index for H5N8 circulating in 2014 (A/turkey/Germany-MV/AR2472/2014).