Skip to Main content Skip to Navigation
Journal articles

Influence d'une période d'éclairement continu sur la première maturation sexuelle de la truite arc-en-ciel (Oncorhynchus mykiss)

Abstract : Sexual maturation rate at the age of 2 years was significantly lower in a group of rainbow trout (Oncorhynchus mykiss) under continuous light from the end of the vesicle resorption stage than in the control. This inhibition was almost total in females, while sexual maturation rate was reduced by half in males. The same phenomenon has been observed in a group of females maintained under constant illumination from the first day of 0+ July to the first day of 1+ July. The analysis of the physiological parameters has shown that the exogenous vitellogenesis did not start during the 1 + year. Moreover, it was confirmed that the continuous light exposure has a beneficial effect on the growth rate of the treated fish in comparison with control.
Document type :
Journal articles
Complete list of metadata

https://hal.inrae.fr/hal-02697519
Contributor : Migration Prodinra <>
Submitted on : Monday, June 1, 2020 - 11:27:02 AM
Last modification on : Tuesday, April 6, 2021 - 2:00:05 PM

Links full text

Identifiers

Collections

Citation

Gérard Maisse, O. Noel, Bernard Breton, Lionel Goardon, Pierre-Yves Le Bail, et al.. Influence d'une période d'éclairement continu sur la première maturation sexuelle de la truite arc-en-ciel (Oncorhynchus mykiss). Bulletin Francais De La Peche Et De La Pisciculture, 1998, 350-351, pp.255-264. ⟨10.1051/kmae:1998002⟩. ⟨hal-02697519⟩

Share

Metrics

Record views

10