Alimentation végétale supplémentée en DHA d'origine micro-algale au cours du cycle de reproduction de la truite arc-en-c...
Session : Nutrition et Qualité
Consequences on gametogenesis and reproduction performances of a high carbohydrate nutrition during the whole reproducti...
Consequences on gametogenesis and reproduction performances of a high carbohydrate nutrition during the whole reproductive cycle of males and females trout. Experimental Biology 2019
Reproductive biology of the black truffle Tuber melanosporum: contrasting ecologies of the two parents
The black truffle Tuber melanosporum is an ectomycorrhizal ascomycete of commercial value. Few is known about the reproductive biology of this famous edible mushroom. It is potentially hermaphroditic but reproduction – i.e. formation of the fruitbody (asco-carp) and production of meiotic spores (ascospores) within the later – requires mating betwee...
STRATEGIES DE RECHERCHE ALIMENTAIRE D'UN PREDATEUR PLONGEUR EN PERIODE DE REPRODUCTION : LE GORFOU MACARONI DES ILES CRO...
L’océan Austral abrite encore des populations exceptionnelles de prédateurs marins (manchots, albatros, phoques…). Bien qu’activement étudiés, l’approche fonctionnelle des relations proies-prédateurs souffre encore d’un manque de connaissances chez les prédateurs marins. Etudier comment ces animaux utilisent les habitats est essentiel pour mieux co...
Correlation of oocyte maturation and the steroid hormone levels in the indian carps
Carps form the major inland fishery resource inthe lndian peninsula. The economic and growthpotential offered by the carps is instrumental in thedevelopment of the inland capture fisheries. With a vastextent of lndia's landscape tucked away from the sea,inland fishery has often proved to be a greatersubstitute for the seafood. Among the total inlan...
Non invasive man-made modulation of gonadotropin secretion and maturation in teleost fish. New strategies to study induc...
A problem encountering in the intensive culture of some teleosts is the lack of final maturation and ovulation in captivity. On the other hand, in natural conditions the reproductive cycle is season depending. In the catfish culture, for instance, manipulation of environmental parameters have not been very successful in the control of the reproduct...
The neuroendocrine control of the gonadotropin( GTH2) secretion in teleost fish
In fish the control of the pituitary maturational gonadotropin (GTH2) secretion in mainly under the influence of the gonadotropin releasing hormone (GnRH). This paper will deal with recent advances in the knowledge of the GnRH system in teleost fish, and on the others neuromediators wich can modulate positively or negatively this system or act dire...
Validacion del radioinmunoensayo para la estimacion de testosterona, 11-cetotestosterona y 17β-estradiol en plasma de lu...
In the last years, radioimmunoassay (R.I.A.) has been used in order to measure plasma steroid levels. The present work validates R.I.A. for determination of testosterone, 11-ketotestosterone and 17 beta -estradiol in the plasma of sea bass. Prior assay and to increase the assay specificity, the plasma steroids were extracted and purified on Sephade...
Validacion del radioinmunoensayo para la estimacion de testosterona, 11-cetotestosterona y 17β-estradiol en plasma de lu...
Plasma cortisol levels of female rainbow trout (Salmo gairdneri) at the end of the reproductive cycle: relationship with...
Published in General and comparative endocrinology
The concentrations of plasma cortisol were determined in two populations of female rainbow trout at the end of their reproductive cycles. In females ending vitellogenesis or having oocytes with germinal vesicles in peripheral positions, mean cortisol levels were low (about 8 to 10 ng/ml). Cortisol concentrations remained low during oocyte maturatio...
