Effect of different stocking densities on growth, muscle development and fatty acid profile of Acipenser baerii larvae
Sturgeons, as well as paddlefishes, belong to the Acipenseriformes group, which is one of the most primordial 57 orders of the Osteichthyes that comprehends 25 species spread throughout Europe, Asia and North America. The present study aims at investigating muscle growth and development as well as f...
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Università degli Studi di Milano
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ftdoajarticles:oai:doaj.org/article:4b10fb78842b40119c272fd80c51b124 2023-05-15T13:01:57+02:00 Effect of different stocking densities on growth, muscle development and fatty acid profile of Acipenser baerii larvae Lucia Aidos Mauro Vasconi Marco Lanfranchi Alessia Di Giancamillo 2018-06-01T00:00:00Z https://doi.org/10.13130/2283-3927/10057 https://doaj.org/article/4b10fb78842b40119c272fd80c51b124 EN eng Università degli Studi di Milano https://riviste.unimi.it/index.php/haf/article/view/10057 https://doaj.org/toc/2283-3927 2283-3927 doi:10.13130/2283-3927/10057 https://doaj.org/article/4b10fb78842b40119c272fd80c51b124 International Journal of Health, Animal Science and Food Safety, Vol 5, Iss 1s (2018) Siberian stugeon larvae growth muscle development stress density Animal culture SF1-1100 Ecology QH540-549.5 Genetics QH426-470 Economic biology QH705-705.5 article 2018 ftdoajarticles https://doi.org/10.13130/2283-3927/10057 2022-12-31T05:37:01Z Sturgeons, as well as paddlefishes, belong to the Acipenseriformes group, which is one of the most primordial 57 orders of the Osteichthyes that comprehends 25 species spread throughout Europe, Asia and North America. The present study aims at investigating muscle growth and development as well as fatty acid profile in Siberian sturgeon free-embryos when subjected to three different rearing densities. Fatty acids, in particular polyunsaturated fatty acids of n-3 series, are generally known as key nutrients in fish larvae. This study was approved by the Ethic Committee of the University of Milan (OPBA_22_2017). Siberian sturgeon larvae were reared at 18°C, at three stocking densities until complete yolk-sac absorption: low (LD, 30 larvae/l), mid (MD, 80 larvae/l) and high (HD, 150 larvae/l). Sampling timepoints were: hatching, schooling and complete yolk-sac absorption stage (YSA). Sacrificed larvae were weighed and histological analyses were performed in order to assess muscle development as described elsewhere fatty acid profile was determined by GC-FID analysis as described by Vasconi et al. (2015). Statistical analysis was performed with SAS software (v. 9.3, Cary Inc., NC). At the end of the experiment, LD larvae presented a higher weight than larvae reared at the other two densities (P<0.05). Within the schooling stage (Figure 1), Total Muscle Area was lower for HD larvae (P<0.05); red and white muscle areas in schooling and YSA were higher than at hatching (P<0.05), regardless the density. Concerning fatty acids, no statistical differences were recorded between different rearing densities, while during the development regardless the rearing density, there was a common pattern: linoleic and alfa linolenic acids, significantly decreased their relative content, while others, as arachidonic acid and DHA, significantly increased. Siberian sturgeon larvae reared at LD or MD reveal an anatomically normal muscle development, while in the HD it is possible to observe a slowdown. What the aquaculture ... Article in Journal/Newspaper Acipenser baerii Siberian sturgeon Directory of Open Access Journals: DOAJ Articles Fid ENVELOPE(-65.939,-65.939,-68.664,-68.664) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Siberian stugeon larvae growth muscle development stress density Animal culture SF1-1100 Ecology QH540-549.5 Genetics QH426-470 Economic biology QH705-705.5 |
spellingShingle |
Siberian stugeon larvae growth muscle development stress density Animal culture SF1-1100 Ecology QH540-549.5 Genetics QH426-470 Economic biology QH705-705.5 Lucia Aidos Mauro Vasconi Marco Lanfranchi Alessia Di Giancamillo Effect of different stocking densities on growth, muscle development and fatty acid profile of Acipenser baerii larvae |
topic_facet |
Siberian stugeon larvae growth muscle development stress density Animal culture SF1-1100 Ecology QH540-549.5 Genetics QH426-470 Economic biology QH705-705.5 |
description |
Sturgeons, as well as paddlefishes, belong to the Acipenseriformes group, which is one of the most primordial 57 orders of the Osteichthyes that comprehends 25 species spread throughout Europe, Asia and North America. The present study aims at investigating muscle growth and development as well as fatty acid profile in Siberian sturgeon free-embryos when subjected to three different rearing densities. Fatty acids, in particular polyunsaturated fatty acids of n-3 series, are generally known as key nutrients in fish larvae. This study was approved by the Ethic Committee of the University of Milan (OPBA_22_2017). Siberian sturgeon larvae were reared at 18°C, at three stocking densities until complete yolk-sac absorption: low (LD, 30 larvae/l), mid (MD, 80 larvae/l) and high (HD, 150 larvae/l). Sampling timepoints were: hatching, schooling and complete yolk-sac absorption stage (YSA). Sacrificed larvae were weighed and histological analyses were performed in order to assess muscle development as described elsewhere fatty acid profile was determined by GC-FID analysis as described by Vasconi et al. (2015). Statistical analysis was performed with SAS software (v. 9.3, Cary Inc., NC). At the end of the experiment, LD larvae presented a higher weight than larvae reared at the other two densities (P<0.05). Within the schooling stage (Figure 1), Total Muscle Area was lower for HD larvae (P<0.05); red and white muscle areas in schooling and YSA were higher than at hatching (P<0.05), regardless the density. Concerning fatty acids, no statistical differences were recorded between different rearing densities, while during the development regardless the rearing density, there was a common pattern: linoleic and alfa linolenic acids, significantly decreased their relative content, while others, as arachidonic acid and DHA, significantly increased. Siberian sturgeon larvae reared at LD or MD reveal an anatomically normal muscle development, while in the HD it is possible to observe a slowdown. What the aquaculture ... |
format |
Article in Journal/Newspaper |
author |
Lucia Aidos Mauro Vasconi Marco Lanfranchi Alessia Di Giancamillo |
author_facet |
Lucia Aidos Mauro Vasconi Marco Lanfranchi Alessia Di Giancamillo |
author_sort |
Lucia Aidos |
title |
Effect of different stocking densities on growth, muscle development and fatty acid profile of Acipenser baerii larvae |
title_short |
Effect of different stocking densities on growth, muscle development and fatty acid profile of Acipenser baerii larvae |
title_full |
Effect of different stocking densities on growth, muscle development and fatty acid profile of Acipenser baerii larvae |
title_fullStr |
Effect of different stocking densities on growth, muscle development and fatty acid profile of Acipenser baerii larvae |
title_full_unstemmed |
Effect of different stocking densities on growth, muscle development and fatty acid profile of Acipenser baerii larvae |
title_sort |
effect of different stocking densities on growth, muscle development and fatty acid profile of acipenser baerii larvae |
publisher |
Università degli Studi di Milano |
publishDate |
2018 |
url |
https://doi.org/10.13130/2283-3927/10057 https://doaj.org/article/4b10fb78842b40119c272fd80c51b124 |
long_lat |
ENVELOPE(-65.939,-65.939,-68.664,-68.664) |
geographic |
Fid |
geographic_facet |
Fid |
genre |
Acipenser baerii Siberian sturgeon |
genre_facet |
Acipenser baerii Siberian sturgeon |
op_source |
International Journal of Health, Animal Science and Food Safety, Vol 5, Iss 1s (2018) |
op_relation |
https://riviste.unimi.it/index.php/haf/article/view/10057 https://doaj.org/toc/2283-3927 2283-3927 doi:10.13130/2283-3927/10057 https://doaj.org/article/4b10fb78842b40119c272fd80c51b124 |
op_doi |
https://doi.org/10.13130/2283-3927/10057 |
_version_ |
1766291080399028224 |