Effects of combined ‘all-fish’ growth hormone transgenics and triploidy on growth and nutrient utilization of Atlantic salmon (Salmo salar L.) fed a practical grower diet of known composition
Full-sibling, size-matched ‘all-fish’ growth hormone transgenic (TG; gene construct EO-1α) and non-transgenic (NTG) Atlantic salmon (Salmo salar L.) comprised of conventional diploid (DIP) and reproductively-sterile triploid (TRIP) fish were fed the same experimental grower diet in freshwater until...
Published in: | Aquaculture |
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Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2013
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Online Access: | https://doi.org/10.1016/j.aquaculture.2013.05.005 https://nrc-publications.canada.ca/eng/view/object/?id=af786c6b-2114-4587-bc5f-89cc8107b89b https://nrc-publications.canada.ca/fra/voir/objet/?id=af786c6b-2114-4587-bc5f-89cc8107b89b |
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:21268630 2023-05-15T15:30:47+02:00 Effects of combined ‘all-fish’ growth hormone transgenics and triploidy on growth and nutrient utilization of Atlantic salmon (Salmo salar L.) fed a practical grower diet of known composition Tibbetts, S. M. Wall, C. L. Barbosa-Solomieu, V. Bryenton, M. D. Plouffe, D. A. Buchanan, J. T. Lall, S. P. 2013-05-24 text https://doi.org/10.1016/j.aquaculture.2013.05.005 https://nrc-publications.canada.ca/eng/view/object/?id=af786c6b-2114-4587-bc5f-89cc8107b89b https://nrc-publications.canada.ca/fra/voir/objet/?id=af786c6b-2114-4587-bc5f-89cc8107b89b eng eng Elsevier issn:00448486 Aquaculture, Volume: 406-407, Publication date: 2013-05-24, Pages: 141–152 doi:10.1016/j.aquaculture.2013.05.005 Atlantic salmon Energy metabolism Nutrition Protein utilization Transgenics Triploidy article 2013 ftnrccanada https://doi.org/10.1016/j.aquaculture.2013.05.005 2021-09-01T06:27:56Z Full-sibling, size-matched ‘all-fish’ growth hormone transgenic (TG; gene construct EO-1α) and non-transgenic (NTG) Atlantic salmon (Salmo salar L.) comprised of conventional diploid (DIP) and reproductively-sterile triploid (TRIP) fish were fed the same experimental grower diet in freshwater until they tripled their weight. The study was conducted to provide baseline data on growth performance, feed efficiency, nutrient digestibility, skeletal disorders, bone ash content and bone mineral composition of NTG/DIP, NTG/TRIP, TG/DIP and TG/TRIP fish and to determine if a practical grower diet for conventional NTG/DIP Atlantic salmon requires modification for TG/TRIP fish. TG fish consumed a significantly higher amount of feed on a daily basis but due to enhanced growth rates, better feed conversion ratios and higher nitrogen retention efficiency they achieved target weight gain in a considerably shorter period (40%) than NTG fish. Total feed required to produce the same fish biomass was reduced by 25%; representative of a significant reduction in overall feed intake. Of TG fish, TRIP had some significant effects on production traits primarily due to lower feed intake relative to DIP fish. Although feed intake was lower in TG/TRIP fish, feed efficiency, digestibility and nutrient retention efficiencies were equal to those of TG/DIP fish and, without exception; TG/TRIP fish out-performed their conventional NTG counterparts, regardless of ploidy. TG/DIP and TG/TRIP fish demonstrated a higher cellular capacity to direct dietary non-protein energy towards satisfying their daily metabolic energy requirements, allowing for a higher proportion of dietary amino acids to be directed towards protein biosynthesis; rather than catabolised as a dietary energy source. Since dietary protein is the largest and most expensive component of salmon feeds and also the major source of nitrogenous pollution from salmon farming, this could represent a highly beneficial alteration of energy metabolism which could result in more economical and ecologically-sustainable Atlantic salmon aquaculture, especially when conducted in closed-containment land-based systems. Although bone ash content of TG fish was slightly lower than NTG fish, no significant differences in key bone mineral composition were observed and the occurrence of skeletal disorders was low (< 4%), regardless of transgenics or ploidy. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Atlantic salmon Salmo salar National Research Council Canada: NRC Publications Archive Aquaculture 406-407 141 152 |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
topic |
Atlantic salmon Energy metabolism Nutrition Protein utilization Transgenics Triploidy |
spellingShingle |
Atlantic salmon Energy metabolism Nutrition Protein utilization Transgenics Triploidy Tibbetts, S. M. Wall, C. L. Barbosa-Solomieu, V. Bryenton, M. D. Plouffe, D. A. Buchanan, J. T. Lall, S. P. Effects of combined ‘all-fish’ growth hormone transgenics and triploidy on growth and nutrient utilization of Atlantic salmon (Salmo salar L.) fed a practical grower diet of known composition |
topic_facet |
Atlantic salmon Energy metabolism Nutrition Protein utilization Transgenics Triploidy |
description |
Full-sibling, size-matched ‘all-fish’ growth hormone transgenic (TG; gene construct EO-1α) and non-transgenic (NTG) Atlantic salmon (Salmo salar L.) comprised of conventional diploid (DIP) and reproductively-sterile triploid (TRIP) fish were fed the same experimental grower diet in freshwater until they tripled their weight. The study was conducted to provide baseline data on growth performance, feed efficiency, nutrient digestibility, skeletal disorders, bone ash content and bone mineral composition of NTG/DIP, NTG/TRIP, TG/DIP and TG/TRIP fish and to determine if a practical grower diet for conventional NTG/DIP Atlantic salmon requires modification for TG/TRIP fish. TG fish consumed a significantly higher amount of feed on a daily basis but due to enhanced growth rates, better feed conversion ratios and higher nitrogen retention efficiency they achieved target weight gain in a considerably shorter period (40%) than NTG fish. Total feed required to produce the same fish biomass was reduced by 25%; representative of a significant reduction in overall feed intake. Of TG fish, TRIP had some significant effects on production traits primarily due to lower feed intake relative to DIP fish. Although feed intake was lower in TG/TRIP fish, feed efficiency, digestibility and nutrient retention efficiencies were equal to those of TG/DIP fish and, without exception; TG/TRIP fish out-performed their conventional NTG counterparts, regardless of ploidy. TG/DIP and TG/TRIP fish demonstrated a higher cellular capacity to direct dietary non-protein energy towards satisfying their daily metabolic energy requirements, allowing for a higher proportion of dietary amino acids to be directed towards protein biosynthesis; rather than catabolised as a dietary energy source. Since dietary protein is the largest and most expensive component of salmon feeds and also the major source of nitrogenous pollution from salmon farming, this could represent a highly beneficial alteration of energy metabolism which could result in more economical and ecologically-sustainable Atlantic salmon aquaculture, especially when conducted in closed-containment land-based systems. Although bone ash content of TG fish was slightly lower than NTG fish, no significant differences in key bone mineral composition were observed and the occurrence of skeletal disorders was low (< 4%), regardless of transgenics or ploidy. Peer reviewed: Yes NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Tibbetts, S. M. Wall, C. L. Barbosa-Solomieu, V. Bryenton, M. D. Plouffe, D. A. Buchanan, J. T. Lall, S. P. |
author_facet |
Tibbetts, S. M. Wall, C. L. Barbosa-Solomieu, V. Bryenton, M. D. Plouffe, D. A. Buchanan, J. T. Lall, S. P. |
author_sort |
Tibbetts, S. M. |
title |
Effects of combined ‘all-fish’ growth hormone transgenics and triploidy on growth and nutrient utilization of Atlantic salmon (Salmo salar L.) fed a practical grower diet of known composition |
title_short |
Effects of combined ‘all-fish’ growth hormone transgenics and triploidy on growth and nutrient utilization of Atlantic salmon (Salmo salar L.) fed a practical grower diet of known composition |
title_full |
Effects of combined ‘all-fish’ growth hormone transgenics and triploidy on growth and nutrient utilization of Atlantic salmon (Salmo salar L.) fed a practical grower diet of known composition |
title_fullStr |
Effects of combined ‘all-fish’ growth hormone transgenics and triploidy on growth and nutrient utilization of Atlantic salmon (Salmo salar L.) fed a practical grower diet of known composition |
title_full_unstemmed |
Effects of combined ‘all-fish’ growth hormone transgenics and triploidy on growth and nutrient utilization of Atlantic salmon (Salmo salar L.) fed a practical grower diet of known composition |
title_sort |
effects of combined ‘all-fish’ growth hormone transgenics and triploidy on growth and nutrient utilization of atlantic salmon (salmo salar l.) fed a practical grower diet of known composition |
publisher |
Elsevier |
publishDate |
2013 |
url |
https://doi.org/10.1016/j.aquaculture.2013.05.005 https://nrc-publications.canada.ca/eng/view/object/?id=af786c6b-2114-4587-bc5f-89cc8107b89b https://nrc-publications.canada.ca/fra/voir/objet/?id=af786c6b-2114-4587-bc5f-89cc8107b89b |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
issn:00448486 Aquaculture, Volume: 406-407, Publication date: 2013-05-24, Pages: 141–152 doi:10.1016/j.aquaculture.2013.05.005 |
op_doi |
https://doi.org/10.1016/j.aquaculture.2013.05.005 |
container_title |
Aquaculture |
container_volume |
406-407 |
container_start_page |
141 |
op_container_end_page |
152 |
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1766361246944198656 |