Literatura académica sobre el tema "Sandre – Reproduction (biologie)"
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Artículos de revistas sobre el tema "Sandre – Reproduction (biologie)"
Richard, C., S. Degrelle, V. Gelin, A. Neveux, P. Chavatte-Palmer, Y. Heyman y I. Hue. "85 Elongation of trophoblastic vesicles between Days 15 and 18 in cattle". Reproduction, Fertility and Development 31, n.º 1 (2019): 168. http://dx.doi.org/10.1071/rdv31n1ab85.
Texto completoTesis sobre el tema "Sandre – Reproduction (biologie)"
Roche, Jennifer. "Implication des récepteurs de la dopamine dans la régulation de l’axe gonadotrope lors de la période pré-ovulatoire chez le sandre, Sander lucioperca". Electronic Thesis or Diss., Université de Lorraine, 2018. http://www.theses.fr/2018LORR0234.
Texto completoPikeperch, Sander lucioperca, is a potential valuable economic fish, making it a species of interest for aquaculture diversification. In the domestication process, controlling and understanding the reproductive cycle is a crucial step in order to produce viable offspring in a synchronous and predictable way. In many teleosts including some perciforms, dopamine inhibits the ovulatory pulse of LH and the ovulation step through D2 dopamine receptors family. In pikeperch, the roles of dopamine and its receptors, especially those belonging to the D1 receptors family, are unknown. For the purpose of the optimization of pikeperch reproduction, we investigated the role of the dopaminergic system during the final stages of oogenesis in this species: (1) by determining the effects of D1 or D2 receptor antagonists alone or in association with sGnRHa on the regulation of the reproductive axis and on the induction of ovulation, (2) by determining the repertoire and the expression profile of the dopamine receptors using a brain transcriptome analysis during the pre-ovulatory period and (3) by evaluating the role of dopamine and its receptors (D1 and D2 families) in the direct and local regulation of the gonadotropic axis at the brain and ovarian levels. For the first time, we showed that the dopamine/D1 receptors complex regulates the sex-steroids release during the pre-ovulatory period, suggesting that dopamine is involved in pikeperch reproduction. Also, we support its involvement thanks to the identification of the dopamine receptors gene expression at the brain, pituitary and ovarian levels. Finally, we showed that the dopaminergic system directly regulates the ovarian testosterone production, through both D1 and D2 receptor families. The involvement of both dopamine receptor families was also highlighted on ovarian 17β-estradiol production. Only the D2 receptor family was shown to be involved on the brain GnRH-3 gene expression. In conclusion, we point out a dopamine receptors implication on the gonadotropic axis regulation during the final stages of oogenesis in pikeperch. However, further studies should be performed to pinpoint the physiological mechanisms behind this phenomenon. From an aquaculture point of view, hormonal treatments with dopamine receptor antagonists appear to be ineffective to improve pikeperch reproductive performances. Therefore, their use to induce pikeperch ovulation should be put into question and the development of alternative methods is necessary to further promote pikeperch production
Blawut, Bryan Joseph. "Assisted Reproduction Techniques’ Effects on Sperm Physiology of the Freshwater Fish, Sauger (Sander canadensis)". The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1607012858031537.
Texto completoKumm, Sandra [Verfasser]. "Reproduction, progenesis, and embryogenesis of thrips (Thysanoptera: Insecta) / von Sandra Kumm". 2002. http://d-nb.info/965449874/34.
Texto completoCapítulos de libros sobre el tema "Sandre – Reproduction (biologie)"
Pullaiah, T. "Reproductive Biology". En Red Sanders: Silviculture and Conservation, 77–84. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7627-6_7.
Texto completoMaun, M. Anwar. "Seed dispersal". En The Biology of Coastal Sand Dunes. Oxford University Press, 2009. http://dx.doi.org/10.1093/oso/9780198570356.003.0008.
Texto completoMaun, M. Anwar. "The sand dune environment". En The Biology of Coastal Sand Dunes. Oxford University Press, 2009. http://dx.doi.org/10.1093/oso/9780198570356.003.0007.
Texto completoMaun, M. Anwar. "Plant communities". En The Biology of Coastal Sand Dunes. Oxford University Press, 2009. http://dx.doi.org/10.1093/oso/9780198570356.003.0016.
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