Product of crossing purposefully selected lines of the same breed or of different breeds; hybrids show a positive heterosis effect with reduced variability.
Feathers with a developed shaft that is either bare or bears only a few barbs at...
Category of feathers comprising primary remiges, secondary remiges and tail feat...
Ability of fertilized hatching eggs to hatch; expressed as percent hatched eithe...
Category of recognized poultry flocks whose purpose is to produce biologically v...
Facility where hatching eggs are stored and graded, chicks are hatched, sexed an...
Hatching taking less time than the normal incubation period; causes include over...