Hormonal profiles correlated with season, cold, and starvation in Rana catesbeiana (bullfrog) tadpoles.


Bullfrog (Rana catesbeiana) tadpoles are of value to amphibian researchers because of their large size, and year-round availability due to overwintering in many latitudes. Concern over a possible difference in hormonal parameters in tadpoles obtained at different times of the year prompted us to investigate thyroid gland secretion in vitro, plasma and… (More)

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