Effect of L-DOPA,Bromocripton and Lergotrile on prolactin cell activity and hydromineral regulation in yearling coho salmon,Oncorhynchus kisutch |
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| Authors: | John F Leatherland |
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| Institution: | (1) Department of Zoology, College of Biological Science, University of Guelph, Guelph, Ontario, N1G 2W1, Canada |
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| Abstract: | Synopsis The prolactin inhibiting substances L-DOPA, Lergotrile and Bromocripton appeared to reduce the secretory activity of the prolactin cells in coho salmon (Oncorhynchus kisutch) yearlings acclimated to distilled water and effected significant reductions in plasma osmotic pressure and plasma Na+ and/or Cl– concentrations. This suggests that in coho salmon prolactin is involved in osmotic or ionic homeostasis in hyposmotic environments in a manner similar to that in other teleosts. |
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| Keywords: | Pituitary Freshwater survival Endocrinology Catecholamines Ergot alkaloids Osmoregulation Ionoregulation |
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