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Figure 1 | Reproductive Biology and Endocrinology

Figure 1

From: Plasma 11-deoxycorticosterone (DOC) and mineralocorticoid receptor testicular expression during rainbow trout Oncorhynchus mykiss spermiation: implication with 17alpha, 20beta-dihydroxyprogesterone on the milt fluidity?

Figure 1

Plasma DOC and MIS variations during the O. mykiss reproductive cycle. A, B, C : experiment 1. with O. mykiss from an autumn spawning strain. Kinetics of initiation of spermiation in a group of mature males, expressed as % of fish producing milt (A). Coincident changes in blood plasma DOC concentrations (pg/ml) (B) and in testis mineralocorticoid receptor (rtMR) mRNA abundance (C) according to time of year and stage of sexual maturation. Means+ SD (n = 3–5). Mature males were only studied until December. D, E, F : experiment 2 with O. mykiss from a spring spawning strain. Kinetics of spermiation in a group of mature males, assessed by the spermiation index (D). Coincident changes in blood plasma DOC concentrations (pg/ml) (E) and in blood plasma MIS (ng/ml) (F) according to time of year. Means+ SD (n = 8). Different letters indicate significant differences between months. * Significant difference between immature and maturing/mature fish, p < 0.05.

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Reproductive Biology and Endocrinology

ISSN: 1477-7827

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