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Title: Apparent digestibility coefficients of European grain legumes in rainbow trout ( Oncorhynchus mykiss ) and Nile tilapia ( Oreochromis niloticus )

Authors:
 [1];  [1];  [2];  [2];  [3];  [4];  [5]; ORCiD logo [1]
  1. REQUIMTE, LAQV, ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto Portugal
  2. REQUIMTE, LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Porto Portugal
  3. Universidade de Trás-os-Montes e Alto Douro (UTAD), Vila Real Portugal, CECAV-Universidade de Trás-os-Montes e Alto Douro (UTAD), Vila Real Portugal
  4. REQUIMTE, LAQV, ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto Portugal, REQUIMTE, LAQV, DGAOT, Faculdade de Ciências, Universidade do Porto, Porto Portugal
  5. ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto Portugal, CIIMAR-CIMAR L.A., Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Porto Portugal
Publication Date:
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5)
OSTI Identifier:
1401554
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Aquaculture Nutrition
Additional Journal Information:
Journal Volume: 24; Journal Issue: 1; Related Information: CHORUS Timestamp: 2018-01-17 04:21:57; Journal ID: ISSN 1353-5773
Publisher:
Wiley-Blackwell
Country of Publication:
Country unknown/Code not available
Language:
English

Citation Formats

Magalhães, S. C. Q., Cabrita, A. R. J., Valentão, P., Andrade, P. B., Rema, P., Maia, M. R. G., Valente, L. M. P., and Fonseca, A. J. M.. Apparent digestibility coefficients of European grain legumes in rainbow trout ( Oncorhynchus mykiss ) and Nile tilapia ( Oreochromis niloticus ). Country unknown/Code not available: N. p., 2017. Web. doi:10.1111/anu.12564.
Magalhães, S. C. Q., Cabrita, A. R. J., Valentão, P., Andrade, P. B., Rema, P., Maia, M. R. G., Valente, L. M. P., & Fonseca, A. J. M.. Apparent digestibility coefficients of European grain legumes in rainbow trout ( Oncorhynchus mykiss ) and Nile tilapia ( Oreochromis niloticus ). Country unknown/Code not available. doi:10.1111/anu.12564.
Magalhães, S. C. Q., Cabrita, A. R. J., Valentão, P., Andrade, P. B., Rema, P., Maia, M. R. G., Valente, L. M. P., and Fonseca, A. J. M.. Sat . "Apparent digestibility coefficients of European grain legumes in rainbow trout ( Oncorhynchus mykiss ) and Nile tilapia ( Oreochromis niloticus )". Country unknown/Code not available. doi:10.1111/anu.12564.
@article{osti_1401554,
title = {Apparent digestibility coefficients of European grain legumes in rainbow trout ( Oncorhynchus mykiss ) and Nile tilapia ( Oreochromis niloticus )},
author = {Magalhães, S. C. Q. and Cabrita, A. R. J. and Valentão, P. and Andrade, P. B. and Rema, P. and Maia, M. R. G. and Valente, L. M. P. and Fonseca, A. J. M.},
abstractNote = {},
doi = {10.1111/anu.12564},
journal = {Aquaculture Nutrition},
number = 1,
volume = 24,
place = {Country unknown/Code not available},
year = {Sat May 13 00:00:00 EDT 2017},
month = {Sat May 13 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1111/anu.12564

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  • Previous studies indicated that maturation inducing hormone, 17α, 20β-Dihydroxy-4-pregnen-3-one (DHP), probably through nuclear progestin receptor (Pgr), might be involved in spermatogenesis and oogenesis in fish. To further elucidate DHP actions in teleostean ovarian differentiation, we analyzed the expression of pgr in the ovary of Nile tilapia (Oreochromis niloticus), and performed RU486 (a synthetic Pgr antagonist) treatment in XX fish from 5 days after hatching (dah) to 120dah. Tilapia Pgr was abundantly expressed in the follicular cells surrounding oocytes at 30 and 90dah. Continuous RU486 treatment led to the blockage of oogenesis and masculinization of somatic cells in XX fish. Terminationmore » of RU486 treatment and maintenance in normal condition resulted in testicular differentiation, and estrogen compensation in RU486-treated XX fish successfully restored oogenesis. In RU486-treated XX fish, transcript levels of female dominant genes were significantly reduced, while male-biased genes were evidently augmented. Meanwhile, both germ cell mitotic and meiotic markers were substantially reduced. Consistently, estrogen production levels were significantly declined in RU486-treated XX fish. Taken together, our data further proved that DHP, possibly through Pgr, might be essential in the ovarian differentiation and estrogen production in fish. - Highlights: • DHP plays a critical role in early stage oogenesis of XX tilapia. • Blockage of DHP actions by RU486 treatment led to masculinization and/or sex reversal in XX tilapia. • Both DHP and estrogen are indispensable for ovarian differentiation.« less
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