PSXIII-25 Comparative analysis of state of the neurosecretary system of pink salmon, Oncorhynchus gorbuscha walb. on different stages of ontogenesis
Abstract The preoptic-pituitary neurosecretory system (PPNS) plays a key role in the regulation of reproduction, spawning, osmoregulation and fish growth. This study aimed to find out the development features of the PPNS in pink salmon in connection with gonadal sex differentiation and spawning. A c...
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Online Access: | http://dx.doi.org/10.1093/jas/skz258.737 http://academic.oup.com/jas/article-pdf/97/Supplement_3/369/31256600/skz258.737.pdf |
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croxfordunivpr:10.1093/jas/skz258.737 2023-05-15T17:52:53+02:00 PSXIII-25 Comparative analysis of state of the neurosecretary system of pink salmon, Oncorhynchus gorbuscha walb. on different stages of ontogenesis Tashbaev, Daniil Mosyagina, Marina Lukina, Julia Pechenkina, Alla Anipchenko, Polina Garlov, Pavel Zelennikov, Oleg 2019 http://dx.doi.org/10.1093/jas/skz258.737 http://academic.oup.com/jas/article-pdf/97/Supplement_3/369/31256600/skz258.737.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Journal of Animal Science volume 97, issue Supplement_3, page 369-370 ISSN 0021-8812 1525-3163 Genetics Animal Science and Zoology General Medicine Food Science journal-article 2019 croxfordunivpr https://doi.org/10.1093/jas/skz258.737 2022-04-15T06:36:41Z Abstract The preoptic-pituitary neurosecretory system (PPNS) plays a key role in the regulation of reproduction, spawning, osmoregulation and fish growth. This study aimed to find out the development features of the PPNS in pink salmon in connection with gonadal sex differentiation and spawning. A comparative morphometric analysis of all parts of the system was carried out in juveniles aged 3–4 months and adults during the spawning season. The ratios of the areas were calculated for the PPNS different segments on the sagittal sections: the cellular parts of the preoptic nucleus, the cyto- and karyometric characteristics of neurosecretory cells. The complex morphometry of neurosecretory, glial and vascular elements in the neurohypophysis was carried out. It was found that during seaward run and the completion of sex differentiation, the main sections of the PPNS were already fully formed and the ratio of all parts of the preoptic nucleus in juveniles and adults was not significantly different (р< 0,05). In juveniles, compared with adults, the relative area of the neurohypophysis was significantly higher (P < 0.05), and level of relative development of the capillary network, the length of neurohemmal contacts and organ hyperemia were comparable. It was shown a high level of formation and functioning of PPNS in juveniles, as well as its important role during seaward run and early gonadogenesis. Article in Journal/Newspaper Oncorhynchus gorbuscha Pink salmon Oxford University Press (via Crossref) Journal of Animal Science 97 Supplement_3 369 370 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Genetics Animal Science and Zoology General Medicine Food Science |
spellingShingle |
Genetics Animal Science and Zoology General Medicine Food Science Tashbaev, Daniil Mosyagina, Marina Lukina, Julia Pechenkina, Alla Anipchenko, Polina Garlov, Pavel Zelennikov, Oleg PSXIII-25 Comparative analysis of state of the neurosecretary system of pink salmon, Oncorhynchus gorbuscha walb. on different stages of ontogenesis |
topic_facet |
Genetics Animal Science and Zoology General Medicine Food Science |
description |
Abstract The preoptic-pituitary neurosecretory system (PPNS) plays a key role in the regulation of reproduction, spawning, osmoregulation and fish growth. This study aimed to find out the development features of the PPNS in pink salmon in connection with gonadal sex differentiation and spawning. A comparative morphometric analysis of all parts of the system was carried out in juveniles aged 3–4 months and adults during the spawning season. The ratios of the areas were calculated for the PPNS different segments on the sagittal sections: the cellular parts of the preoptic nucleus, the cyto- and karyometric characteristics of neurosecretory cells. The complex morphometry of neurosecretory, glial and vascular elements in the neurohypophysis was carried out. It was found that during seaward run and the completion of sex differentiation, the main sections of the PPNS were already fully formed and the ratio of all parts of the preoptic nucleus in juveniles and adults was not significantly different (р< 0,05). In juveniles, compared with adults, the relative area of the neurohypophysis was significantly higher (P < 0.05), and level of relative development of the capillary network, the length of neurohemmal contacts and organ hyperemia were comparable. It was shown a high level of formation and functioning of PPNS in juveniles, as well as its important role during seaward run and early gonadogenesis. |
format |
Article in Journal/Newspaper |
author |
Tashbaev, Daniil Mosyagina, Marina Lukina, Julia Pechenkina, Alla Anipchenko, Polina Garlov, Pavel Zelennikov, Oleg |
author_facet |
Tashbaev, Daniil Mosyagina, Marina Lukina, Julia Pechenkina, Alla Anipchenko, Polina Garlov, Pavel Zelennikov, Oleg |
author_sort |
Tashbaev, Daniil |
title |
PSXIII-25 Comparative analysis of state of the neurosecretary system of pink salmon, Oncorhynchus gorbuscha walb. on different stages of ontogenesis |
title_short |
PSXIII-25 Comparative analysis of state of the neurosecretary system of pink salmon, Oncorhynchus gorbuscha walb. on different stages of ontogenesis |
title_full |
PSXIII-25 Comparative analysis of state of the neurosecretary system of pink salmon, Oncorhynchus gorbuscha walb. on different stages of ontogenesis |
title_fullStr |
PSXIII-25 Comparative analysis of state of the neurosecretary system of pink salmon, Oncorhynchus gorbuscha walb. on different stages of ontogenesis |
title_full_unstemmed |
PSXIII-25 Comparative analysis of state of the neurosecretary system of pink salmon, Oncorhynchus gorbuscha walb. on different stages of ontogenesis |
title_sort |
psxiii-25 comparative analysis of state of the neurosecretary system of pink salmon, oncorhynchus gorbuscha walb. on different stages of ontogenesis |
publisher |
Oxford University Press (OUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1093/jas/skz258.737 http://academic.oup.com/jas/article-pdf/97/Supplement_3/369/31256600/skz258.737.pdf |
genre |
Oncorhynchus gorbuscha Pink salmon |
genre_facet |
Oncorhynchus gorbuscha Pink salmon |
op_source |
Journal of Animal Science volume 97, issue Supplement_3, page 369-370 ISSN 0021-8812 1525-3163 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/jas/skz258.737 |
container_title |
Journal of Animal Science |
container_volume |
97 |
container_issue |
Supplement_3 |
container_start_page |
369 |
op_container_end_page |
370 |
_version_ |
1766160622130561024 |