Effect of Estradiol Monobenzoate on some Serum Constituents of Maturing Sockeye Salmon (Oncorhynchus nerka)

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Abstract
Blood changes associated with egg production or estrogenization in other egg-laying vertebrates have been obtained in adult sockeye salmon. The blood picture of male salmon following estrogenization approaches that of sexually maturing females. Exogenous estrogen superimposed on endogenous gonadal hormones in maturing female salmon enhances the serum changes associated with egg formation.