Journal of Wildlife Management · 1957 · 31 citations · 0 references
Life SciencesBiologyZoologyEmbryogenesisEmbryologyOrnithologyAge AssessmentBird DevelopmentHatchability OptimizationAge Effects On Egg FormationArtificial IncubationBroodstock Egg QualityChronological DatingEgg Age AssessmentIncubation BiologyIncubation Duration OptimizationIncubation Period Management
In the course of a series of experiments designed to investigate the conditions necessary to hatch pheasant (Phasianus colchicus) eggs by artificial incubation, the author found it necessary to establish the chronological appearance of aging criteria throughout the incubation period. The data collected deal with external characteristics visible without dissection, and are described herewith in nontechnical language.