Effect of photoperiod on endocrine profiles and vitellogenin expression in European eels Anguilla anguilla during artificially induced ovarian development.
The aim of this work was to determine the effects of dark and light conditions on the E2, testosterone and thyroid hormones levels and on the gene expression levels (vitellogenin 1, vitellogenin 2, and estradiol receptor one) in European eels (Anguilla anguilla) during ovarian development induced by...
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Online Access: | http://hdl.handle.net/11585/389286 https://doi.org/10.1016/j.theriogenology.2014.10.008 |
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ftunibolognairis:oai:cris.unibo.it:11585/389286 2024-09-15T17:39:34+00:00 Effect of photoperiod on endocrine profiles and vitellogenin expression in European eels Anguilla anguilla during artificially induced ovarian development. PARMEGGIANI, ALBAMARIA GOVONI, NADIA ZANNONI, AUGUSTA DI BIASE, ANDREA SIRRI, RUBINA FORNI, MONICA MANDELLI, MICHAELA MORDENTI, OLIVIERO Parmeggiani A Govoni N Zannoni A Di Biase A Sirri R Forni M Mandelli M Mordenti O. 2015 ELETTRONICO http://hdl.handle.net/11585/389286 https://doi.org/10.1016/j.theriogenology.2014.10.008 eng eng info:eu-repo/semantics/altIdentifier/pmid/25459031 info:eu-repo/semantics/altIdentifier/wos/WOS:000349512800004 volume:83 issue:4 firstpage:478 lastpage:484 numberofpages:6 journal:THERIOGENOLOGY http://hdl.handle.net/11585/389286 doi:10.1016/j.theriogenology.2014.10.008 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84922812413 eel ESTRADIOL PHOTOPERIOD TESTOSTERONE THYROID HORMONES VITELLOGENIN info:eu-repo/semantics/article 2015 ftunibolognairis https://doi.org/10.1016/j.theriogenology.2014.10.008 2024-07-01T14:08:30Z The aim of this work was to determine the effects of dark and light conditions on the E2, testosterone and thyroid hormones levels and on the gene expression levels (vitellogenin 1, vitellogenin 2, and estradiol receptor one) in European eels (Anguilla anguilla) during ovarian development induced by increasing doses of carp pituitary extracts (CPEs). The subjects were divided into 2 groups: 14-hour light:10-hour dark (Light Group) and 24-hour darkness (Dark Group). All the eels received intramuscular injections with CPE at a dosage of 10 mg/kg body weight (BW) once a week for the first 3 weeks, 20 mg/kg BW fourth-sixth week, 30 mg/kg BW seventh-ninth week, and 40 mg/kg up to the end of the experiment (13th week). Vitellogenin and estradiol receptor expression levels did not show significant differences between the two housing conditions whereas in both groups vitellogenin mRNA increased starting from first CPE injection. Testosterone and 17-beta estradiol plasma levels were significantly greater in the Dark Group compared with the Light Group starting from the ninth and the 13th week, respectively. These results suggest that darkness could be a useful variable for standardizing gonadal maturation in eels kept in captivity. Article in Journal/Newspaper Anguilla anguilla IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Theriogenology 83 4 478 484 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
eel ESTRADIOL PHOTOPERIOD TESTOSTERONE THYROID HORMONES VITELLOGENIN |
spellingShingle |
eel ESTRADIOL PHOTOPERIOD TESTOSTERONE THYROID HORMONES VITELLOGENIN PARMEGGIANI, ALBAMARIA GOVONI, NADIA ZANNONI, AUGUSTA DI BIASE, ANDREA SIRRI, RUBINA FORNI, MONICA MANDELLI, MICHAELA MORDENTI, OLIVIERO Effect of photoperiod on endocrine profiles and vitellogenin expression in European eels Anguilla anguilla during artificially induced ovarian development. |
topic_facet |
eel ESTRADIOL PHOTOPERIOD TESTOSTERONE THYROID HORMONES VITELLOGENIN |
description |
The aim of this work was to determine the effects of dark and light conditions on the E2, testosterone and thyroid hormones levels and on the gene expression levels (vitellogenin 1, vitellogenin 2, and estradiol receptor one) in European eels (Anguilla anguilla) during ovarian development induced by increasing doses of carp pituitary extracts (CPEs). The subjects were divided into 2 groups: 14-hour light:10-hour dark (Light Group) and 24-hour darkness (Dark Group). All the eels received intramuscular injections with CPE at a dosage of 10 mg/kg body weight (BW) once a week for the first 3 weeks, 20 mg/kg BW fourth-sixth week, 30 mg/kg BW seventh-ninth week, and 40 mg/kg up to the end of the experiment (13th week). Vitellogenin and estradiol receptor expression levels did not show significant differences between the two housing conditions whereas in both groups vitellogenin mRNA increased starting from first CPE injection. Testosterone and 17-beta estradiol plasma levels were significantly greater in the Dark Group compared with the Light Group starting from the ninth and the 13th week, respectively. These results suggest that darkness could be a useful variable for standardizing gonadal maturation in eels kept in captivity. |
author2 |
Parmeggiani A Govoni N Zannoni A Di Biase A Sirri R Forni M Mandelli M Mordenti O. |
format |
Article in Journal/Newspaper |
author |
PARMEGGIANI, ALBAMARIA GOVONI, NADIA ZANNONI, AUGUSTA DI BIASE, ANDREA SIRRI, RUBINA FORNI, MONICA MANDELLI, MICHAELA MORDENTI, OLIVIERO |
author_facet |
PARMEGGIANI, ALBAMARIA GOVONI, NADIA ZANNONI, AUGUSTA DI BIASE, ANDREA SIRRI, RUBINA FORNI, MONICA MANDELLI, MICHAELA MORDENTI, OLIVIERO |
author_sort |
PARMEGGIANI, ALBAMARIA |
title |
Effect of photoperiod on endocrine profiles and vitellogenin expression in European eels Anguilla anguilla during artificially induced ovarian development. |
title_short |
Effect of photoperiod on endocrine profiles and vitellogenin expression in European eels Anguilla anguilla during artificially induced ovarian development. |
title_full |
Effect of photoperiod on endocrine profiles and vitellogenin expression in European eels Anguilla anguilla during artificially induced ovarian development. |
title_fullStr |
Effect of photoperiod on endocrine profiles and vitellogenin expression in European eels Anguilla anguilla during artificially induced ovarian development. |
title_full_unstemmed |
Effect of photoperiod on endocrine profiles and vitellogenin expression in European eels Anguilla anguilla during artificially induced ovarian development. |
title_sort |
effect of photoperiod on endocrine profiles and vitellogenin expression in european eels anguilla anguilla during artificially induced ovarian development. |
publishDate |
2015 |
url |
http://hdl.handle.net/11585/389286 https://doi.org/10.1016/j.theriogenology.2014.10.008 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/25459031 info:eu-repo/semantics/altIdentifier/wos/WOS:000349512800004 volume:83 issue:4 firstpage:478 lastpage:484 numberofpages:6 journal:THERIOGENOLOGY http://hdl.handle.net/11585/389286 doi:10.1016/j.theriogenology.2014.10.008 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84922812413 |
op_doi |
https://doi.org/10.1016/j.theriogenology.2014.10.008 |
container_title |
Theriogenology |
container_volume |
83 |
container_issue |
4 |
container_start_page |
478 |
op_container_end_page |
484 |
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1810480913175281664 |