A re-investigation of the effects of 'Nilevar' on the right gonad of the pullet.
D000818:Animals; D002369:Castration; D005260:Female; D009639:Norethandrolone / Q000494:pharmacology*; D010053:Ovary / Q000187:drug effects* / Q000601:surgery; D011200:Poultry
D009639:Norethandrolone