Growth Rates and Protein Turnover in Atlantic Cod, Gadus morhua
Atlantic cod, Gadus morhua, were maintained on different ration levels or starved to produce a variety of growth rates. The in vivo rates of protein synthesis and degradation were determined for the whole fish and various tissues. As ration level, and hence growth rates, increased, both whole-animal...
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1988
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Online Access: | http://dx.doi.org/10.1139/f88-117 http://www.nrcresearchpress.com/doi/pdf/10.1139/f88-117 |
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crcansciencepubl:10.1139/f88-117 2024-06-23T07:51:04+00:00 Growth Rates and Protein Turnover in Atlantic Cod, Gadus morhua Houlihan, D. F. Hall, S. J. Gray, C. Noble, B. S. 1988 http://dx.doi.org/10.1139/f88-117 http://www.nrcresearchpress.com/doi/pdf/10.1139/f88-117 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 45, issue 6, page 951-964 ISSN 0706-652X 1205-7533 journal-article 1988 crcansciencepubl https://doi.org/10.1139/f88-117 2024-05-30T08:13:50Z Atlantic cod, Gadus morhua, were maintained on different ration levels or starved to produce a variety of growth rates. The in vivo rates of protein synthesis and degradation were determined for the whole fish and various tissues. As ration level, and hence growth rates, increased, both whole-animal protein synthesis and degradation rates increased linearly; growth occurred because of the preponderance of synthesis over degradation. On average, a 300-g cod growing at 1.0%∙d −1 synthesised 1.25 g of protein with 0.4 g of this protein remaining as growth. The proportion of total protein synthesis which was retained as growth increased with increasing growth rate; at a maximum growth rate of 2%∙d −1 , over 40% of the protein synthesised was retained as growth. The ranking of the tissues in terms of fractional rates of protein synthesis was liver > gills > intestine > spleen > ventricle > stomach > gonads > white muscle. The white muscle, gills, liver, stomach, spleen, and ventricle all showed similar patterns of increased protein synthesis with increased growth rate. The white muscle has the highest efficiency of retention of protein and accounts for 40% of the total protein accretion per day. In starving fish there was a constant level of protein synthesis, irrespective of the rate of weight loss. However, degradation rates increased in the whole animal and in white muscle as the rate of weight loss increased. Article in Journal/Newspaper atlantic cod Gadus morhua Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 45 6 951 964 |
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English |
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Atlantic cod, Gadus morhua, were maintained on different ration levels or starved to produce a variety of growth rates. The in vivo rates of protein synthesis and degradation were determined for the whole fish and various tissues. As ration level, and hence growth rates, increased, both whole-animal protein synthesis and degradation rates increased linearly; growth occurred because of the preponderance of synthesis over degradation. On average, a 300-g cod growing at 1.0%∙d −1 synthesised 1.25 g of protein with 0.4 g of this protein remaining as growth. The proportion of total protein synthesis which was retained as growth increased with increasing growth rate; at a maximum growth rate of 2%∙d −1 , over 40% of the protein synthesised was retained as growth. The ranking of the tissues in terms of fractional rates of protein synthesis was liver > gills > intestine > spleen > ventricle > stomach > gonads > white muscle. The white muscle, gills, liver, stomach, spleen, and ventricle all showed similar patterns of increased protein synthesis with increased growth rate. The white muscle has the highest efficiency of retention of protein and accounts for 40% of the total protein accretion per day. In starving fish there was a constant level of protein synthesis, irrespective of the rate of weight loss. However, degradation rates increased in the whole animal and in white muscle as the rate of weight loss increased. |
format |
Article in Journal/Newspaper |
author |
Houlihan, D. F. Hall, S. J. Gray, C. Noble, B. S. |
spellingShingle |
Houlihan, D. F. Hall, S. J. Gray, C. Noble, B. S. Growth Rates and Protein Turnover in Atlantic Cod, Gadus morhua |
author_facet |
Houlihan, D. F. Hall, S. J. Gray, C. Noble, B. S. |
author_sort |
Houlihan, D. F. |
title |
Growth Rates and Protein Turnover in Atlantic Cod, Gadus morhua |
title_short |
Growth Rates and Protein Turnover in Atlantic Cod, Gadus morhua |
title_full |
Growth Rates and Protein Turnover in Atlantic Cod, Gadus morhua |
title_fullStr |
Growth Rates and Protein Turnover in Atlantic Cod, Gadus morhua |
title_full_unstemmed |
Growth Rates and Protein Turnover in Atlantic Cod, Gadus morhua |
title_sort |
growth rates and protein turnover in atlantic cod, gadus morhua |
publisher |
Canadian Science Publishing |
publishDate |
1988 |
url |
http://dx.doi.org/10.1139/f88-117 http://www.nrcresearchpress.com/doi/pdf/10.1139/f88-117 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 45, issue 6, page 951-964 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f88-117 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
45 |
container_issue |
6 |
container_start_page |
951 |
op_container_end_page |
964 |
_version_ |
1802642058648748032 |