Circulating thyroid hormones in the chicken before and after hatching.
D000818:Animals; D002642:Chick Embryo / Q000378:metabolism*; D002645:Chickens / Q000097:blood*; D005260:Female; D008297:Male; D012737:Sex Factors; D013960:Thyroid Function Tests; D013974:Thyroxine / Q000097:blood*; D013997:Time Factors
D013974:Thyroxine