Time of oviposition of shell-less eggs.
D000818:Animals; D002118:Calcium / Q000378:metabolism; D002645:Chickens / Q000502:physiology*; D005260:Female; D008027:Light; D010057:Oviducts / Q000378:metabolism / Q000502:physiology*; D010060:Ovulation; D010063:Ovum / Q000378:metabolism; D013045:Species Specificity; D013997:Time Factors
D002118:Calcium