GnRHa treatments of Atlantic Salmon broodstock suppresses effects of endocrine disruptors, benefitting offspring quality
The use of synthetic hormones to regulate sexual maturity in captive fish is a common practice. With aquaculture practices, fish production is desired throughout the year, necessitating the maintenance of quality standards, mainly regarding the characteristics of the fish produced. Embryonic develop...
Published in: | Animal Reproduction Science |
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Language: | English |
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Online Access: | http://repositoriodigital.uct.cl/handle/10925/3797 https://doi.org/10.1016/j.anireprosci.2020.106470 |
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ftunivctemuco:oai:repositoriodigital.uct.cl:10925/3797 2023-05-15T15:30:51+02:00 GnRHa treatments of Atlantic Salmon broodstock suppresses effects of endocrine disruptors, benefitting offspring quality Zepeda, Andrea B. Miranda, Ignacia B. Valdebenito Isler, Iván Moreno, Ricardo D. Farias, Jorge G. 2021-04-30T16:59:16Z http://repositoriodigital.uct.cl/handle/10925/3797 https://doi.org/10.1016/j.anireprosci.2020.106470 en eng ELSEVIER ANIMAL REPRODUCTION SCIENCE,Vol.217,,2020 http://repositoriodigital.uct.cl/handle/10925/3797 doi:10.1016/j.anireprosci.2020.106470 ANIMAL REPRODUCTION SCIENCE Endocrine disruptor GnRHa Malformations Salmo salar Article 2021 ftunivctemuco https://doi.org/10.1016/j.anireprosci.2020.106470 2021-05-01T23:51:08Z The use of synthetic hormones to regulate sexual maturity in captive fish is a common practice. With aquaculture practices, fish production is desired throughout the year, necessitating the maintenance of quality standards, mainly regarding the characteristics of the fish produced. Embryonic development may be affected by toxins in the environment and by a variety of pathologies. The aim of this study was to determine the effects of treatment with gonadotropin-releasing hormone analog (GnRHa) on captive male and female Atlantic Salmon (Salmo solar) broodstock, observing the effects on the hormonal milieu and impacts on breeding outcomes. Sexually mature fish were fertilized with and without imposing a GnRHa treatment to evaluate the development of offspring up to the fry stage. The concentrations of 17 beta-estradiol (E2) and testosterone (T) were determined using commercially available ELISA kits. The results indicate the administration of GnRHa had marked effects on reductions of morphological deformities in the offspring and promoted development during the larval stage by inducing sexual maturity in both treated parents. The E2/T ratio results indicate the presence of endocrine disruptors. It is concluded that the use of GnRHa at a dose of 10 ug/kg in captive male and female Atlantic salmon broodstock has an inhibitory effect on the impacts of endocrine disruptors, does not affect fertilization rate, and has positive effects on development of offspring by reducing the number of morphological deformities during the larval stage of development. Article in Journal/Newspaper Atlantic salmon Salmo salar Repositorio Académico de la Universidad Católica de Temuco (UCT) Animal Reproduction Science 217 106470 |
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Open Polar |
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Repositorio Académico de la Universidad Católica de Temuco (UCT) |
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ftunivctemuco |
language |
English |
topic |
Endocrine disruptor GnRHa Malformations Salmo salar |
spellingShingle |
Endocrine disruptor GnRHa Malformations Salmo salar Zepeda, Andrea B. Miranda, Ignacia B. Valdebenito Isler, Iván Moreno, Ricardo D. Farias, Jorge G. GnRHa treatments of Atlantic Salmon broodstock suppresses effects of endocrine disruptors, benefitting offspring quality |
topic_facet |
Endocrine disruptor GnRHa Malformations Salmo salar |
description |
The use of synthetic hormones to regulate sexual maturity in captive fish is a common practice. With aquaculture practices, fish production is desired throughout the year, necessitating the maintenance of quality standards, mainly regarding the characteristics of the fish produced. Embryonic development may be affected by toxins in the environment and by a variety of pathologies. The aim of this study was to determine the effects of treatment with gonadotropin-releasing hormone analog (GnRHa) on captive male and female Atlantic Salmon (Salmo solar) broodstock, observing the effects on the hormonal milieu and impacts on breeding outcomes. Sexually mature fish were fertilized with and without imposing a GnRHa treatment to evaluate the development of offspring up to the fry stage. The concentrations of 17 beta-estradiol (E2) and testosterone (T) were determined using commercially available ELISA kits. The results indicate the administration of GnRHa had marked effects on reductions of morphological deformities in the offspring and promoted development during the larval stage by inducing sexual maturity in both treated parents. The E2/T ratio results indicate the presence of endocrine disruptors. It is concluded that the use of GnRHa at a dose of 10 ug/kg in captive male and female Atlantic salmon broodstock has an inhibitory effect on the impacts of endocrine disruptors, does not affect fertilization rate, and has positive effects on development of offspring by reducing the number of morphological deformities during the larval stage of development. |
format |
Article in Journal/Newspaper |
author |
Zepeda, Andrea B. Miranda, Ignacia B. Valdebenito Isler, Iván Moreno, Ricardo D. Farias, Jorge G. |
author_facet |
Zepeda, Andrea B. Miranda, Ignacia B. Valdebenito Isler, Iván Moreno, Ricardo D. Farias, Jorge G. |
author_sort |
Zepeda, Andrea B. |
title |
GnRHa treatments of Atlantic Salmon broodstock suppresses effects of endocrine disruptors, benefitting offspring quality |
title_short |
GnRHa treatments of Atlantic Salmon broodstock suppresses effects of endocrine disruptors, benefitting offspring quality |
title_full |
GnRHa treatments of Atlantic Salmon broodstock suppresses effects of endocrine disruptors, benefitting offspring quality |
title_fullStr |
GnRHa treatments of Atlantic Salmon broodstock suppresses effects of endocrine disruptors, benefitting offspring quality |
title_full_unstemmed |
GnRHa treatments of Atlantic Salmon broodstock suppresses effects of endocrine disruptors, benefitting offspring quality |
title_sort |
gnrha treatments of atlantic salmon broodstock suppresses effects of endocrine disruptors, benefitting offspring quality |
publisher |
ELSEVIER |
publishDate |
2021 |
url |
http://repositoriodigital.uct.cl/handle/10925/3797 https://doi.org/10.1016/j.anireprosci.2020.106470 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
ANIMAL REPRODUCTION SCIENCE |
op_relation |
ANIMAL REPRODUCTION SCIENCE,Vol.217,,2020 http://repositoriodigital.uct.cl/handle/10925/3797 doi:10.1016/j.anireprosci.2020.106470 |
op_doi |
https://doi.org/10.1016/j.anireprosci.2020.106470 |
container_title |
Animal Reproduction Science |
container_volume |
217 |
container_start_page |
106470 |
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1766361326568865792 |