Does the male stimulate oestrogen secretion in female canaries?
Female Border canaries treated with oestrogen during the nonbreeding season may build nests, regardless of winter lighting, temperature, and absence of partner. Incubation may follow completion of the nest although ovulation is suppressed. Reactions obtained in the breeding season suggest that the male does not initiate but accelerates oestrogen production through the stimulation he provides.
D000818:Animals; D001717:Birds / Q000502:physiology*; D001947:Breeding; D002171:Canaries; D000697:Central Nervous System Stimulants; D004967:Estrogens / Q000502:physiology*; D005260:Female; D008297:Male; D012098:Reproduction / Q000502:physiology*; D012621:Seasons
D000697:Central Nervous System Stimulants; D004967:Estrogens
BIRDS/physiology; ESTROGENS/physiology; REPRODUCTION/physiology