Histological and biochemical evaluation of skeletal muscle in the two salmonid species Coregonus maraena and Oncorhynchus mykiss.

The growth of fishes and their metabolism is highly variable in fish species and is an indicator for fish fitness. Therefore, somatic growth, as a main biological process, is ecologically and economically significant. The growth differences of two closely related salmonids, rainbow trout (Oncorhynch...

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Autores principales:	Bianka Grunow, Katja Stange, Ralf Bochert, Katrin Tönißen
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/da359af7c3964e16943b6cce21b075dd
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spelling	oai:doaj.org-article:da359af7c3964e16943b6cce21b075dd2021-12-02T20:08:46ZHistological and biochemical evaluation of skeletal muscle in the two salmonid species Coregonus maraena and Oncorhynchus mykiss.1932-620310.1371/journal.pone.0255062https://doaj.org/article/da359af7c3964e16943b6cce21b075dd2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0255062https://doaj.org/toc/1932-6203The growth of fishes and their metabolism is highly variable in fish species and is an indicator for fish fitness. Therefore, somatic growth, as a main biological process, is ecologically and economically significant. The growth differences of two closely related salmonids, rainbow trout (Oncorhynchus mykiss) and maraena whitefsh (Coregonus maraena), have not been adequately studied as a comparative study and are therefore insufficiently understood. For this reason, our aim was to examine muscle growth in more detail and provide a first complex insight into the growth and muscle metabolism of these two fish species at slaughter size. In addition to skeletal muscle composition (including nuclear counting and staining of stem and progenitor cells), biochemical characteristics, and enzyme activity (creatine kinase, lactate dehydrogenase, isocitrate dehydrogenase) of rainbow trout and maraena whitefish were determined. Our results indicate that red muscle contains cells with a smaller diameter compared to white muscle and those fibres had more stem and progenitor cells as a proportion of total nuclei. Interestingly, numerous interspecies differences were identified; in rainbow trout muscle RNA content, intermediate fibres and fibre diameter and in whitefish red muscle cross-sectional area, creatine kinase activity were higher compared to the other species at slaughter weight. The proportional reduction in red muscle area, accompanied by an increase in DNA content and a lower activity of creatine kinase, exhibited a higher degree of hypertrophic growth in rainbow trout compared to maraena whitefish, which makes this species particularly successful as an aquaculture species.Bianka GrunowKatja StangeRalf BochertKatrin TönißenPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 8, p e0255062 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bianka Grunow Katja Stange Ralf Bochert Katrin Tönißen Histological and biochemical evaluation of skeletal muscle in the two salmonid species Coregonus maraena and Oncorhynchus mykiss.
description	The growth of fishes and their metabolism is highly variable in fish species and is an indicator for fish fitness. Therefore, somatic growth, as a main biological process, is ecologically and economically significant. The growth differences of two closely related salmonids, rainbow trout (Oncorhynchus mykiss) and maraena whitefsh (Coregonus maraena), have not been adequately studied as a comparative study and are therefore insufficiently understood. For this reason, our aim was to examine muscle growth in more detail and provide a first complex insight into the growth and muscle metabolism of these two fish species at slaughter size. In addition to skeletal muscle composition (including nuclear counting and staining of stem and progenitor cells), biochemical characteristics, and enzyme activity (creatine kinase, lactate dehydrogenase, isocitrate dehydrogenase) of rainbow trout and maraena whitefish were determined. Our results indicate that red muscle contains cells with a smaller diameter compared to white muscle and those fibres had more stem and progenitor cells as a proportion of total nuclei. Interestingly, numerous interspecies differences were identified; in rainbow trout muscle RNA content, intermediate fibres and fibre diameter and in whitefish red muscle cross-sectional area, creatine kinase activity were higher compared to the other species at slaughter weight. The proportional reduction in red muscle area, accompanied by an increase in DNA content and a lower activity of creatine kinase, exhibited a higher degree of hypertrophic growth in rainbow trout compared to maraena whitefish, which makes this species particularly successful as an aquaculture species.
format	article
author	Bianka Grunow Katja Stange Ralf Bochert Katrin Tönißen
author_facet	Bianka Grunow Katja Stange Ralf Bochert Katrin Tönißen
author_sort	Bianka Grunow
title	Histological and biochemical evaluation of skeletal muscle in the two salmonid species Coregonus maraena and Oncorhynchus mykiss.
title_short	Histological and biochemical evaluation of skeletal muscle in the two salmonid species Coregonus maraena and Oncorhynchus mykiss.
title_full	Histological and biochemical evaluation of skeletal muscle in the two salmonid species Coregonus maraena and Oncorhynchus mykiss.
title_fullStr	Histological and biochemical evaluation of skeletal muscle in the two salmonid species Coregonus maraena and Oncorhynchus mykiss.
title_full_unstemmed	Histological and biochemical evaluation of skeletal muscle in the two salmonid species Coregonus maraena and Oncorhynchus mykiss.
title_sort	histological and biochemical evaluation of skeletal muscle in the two salmonid species coregonus maraena and oncorhynchus mykiss.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/da359af7c3964e16943b6cce21b075dd
work_keys_str_mv	AT biankagrunow histologicalandbiochemicalevaluationofskeletalmuscleinthetwosalmonidspeciescoregonusmaraenaandoncorhynchusmykiss AT katjastange histologicalandbiochemicalevaluationofskeletalmuscleinthetwosalmonidspeciescoregonusmaraenaandoncorhynchusmykiss AT ralfbochert histologicalandbiochemicalevaluationofskeletalmuscleinthetwosalmonidspeciescoregonusmaraenaandoncorhynchusmykiss AT katrintonißen histologicalandbiochemicalevaluationofskeletalmuscleinthetwosalmonidspeciescoregonusmaraenaandoncorhynchusmykiss
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Histological and biochemical evaluation of skeletal muscle in the two salmonid species Coregonus maraena and Oncorhynchus mykiss.

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