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STRUCTURE OF THE EGG
SELECTION AND HANDLING OF EGGS FOR HATCHING
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advisable air space allantois altricial ammonia amnion arranged baits bins birds blood breeding broad end broody hen building Bulletin cabinet incubators carbon dioxide cent chalazae chick boxes clean combine combine harvester conveyor cooling damp days of incubation dead-in-shell disease disinfectant dried drying duck duct efficient egg capacity egg tray embryo ensure entoderm equipment factors farm feeding feet fertile flat-type incubator floor formaldehyde formalin fumigation grain handling harvest hatchability hatchery premises hatching compartment hatching eggs heat heater hour hygrometer important incubator room installation layer loading machine Malposition method moisture content necessary nest normal operation oxygen period permanganate Plate possible potassium permanganate Poultry reason reduce relative humidity removed riboflavin sexers sexing silos staff stage storage stored suitable temperature thermometer trolleys turkey turning usually ventilated silo walls warfarin washed weight wet-bulb yolk yolk sac