Seasonal variations in plasma and pituitary levels of gonadotrophin in males and females of two strains of rainbow trout (Salmo gairdneri).

@article{Sumpter1989SeasonalVI,
  title={Seasonal variations in plasma and pituitary levels of gonadotrophin in males and females of two strains of rainbow trout (Salmo gairdneri).},
  author={John P. Sumpter and Alexander Pickering Scott},
  journal={General and comparative endocrinology},
  year={1989},
  volume={75 3},
  pages={376-88}
}
Male and female rainbow trout of an autumn- and a winter-spawning strain were sampled every 28 days over a period of 2 years, starting when they were approximately 6 months old. Plasma and pituitary levels of gonadotrophin (GTH) were measured by a radioimmunoassay that preferentially detected the gonadotrophin referred to as either GTH II or "maturational and ovulatory" GTH. The general pattern of gonadal development and the profile of GTH in plasma and pituitary were similar in the two strains… CONTINUE READING

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