Comparative aspects of volatile fatty acid production in reindeer {Rangifer tarandus tarandus) in northern Norway and on South Georgia
Dietary influence on pH and volatile fatty acids concentrations and production rates in the rumen and distal fermentation chamber (DFC) was investigated in Norwegian reindeer (Rangifer t. tarandus) on South Georgia in summer (SG), and in northern Norway in late summer (NS) and winter (NW). Mean [sta...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Septentrio Academic Publishing
2000
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Online Access: | https://septentrio.uit.no/index.php/rangifer/article/view/1515 https://doi.org/10.7557/2.20.4.1515 |
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/1515 2023-05-15T17:43:22+02:00 Comparative aspects of volatile fatty acid production in reindeer {Rangifer tarandus tarandus) in northern Norway and on South Georgia Mathiesen, Svein D. Sørmo, Wenche Utsi, Tove H. Aagnes 2000-03-01 application/pdf https://septentrio.uit.no/index.php/rangifer/article/view/1515 https://doi.org/10.7557/2.20.4.1515 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/1515/1422 https://septentrio.uit.no/index.php/rangifer/article/view/1515 doi:10.7557/2.20.4.1515 Copyright (c) 2015 Svein D. Mathiesen, Wenche Sørmo, Tove H. Aagnes Utsi http://creativecommons.org/licenses/by/3.0/ CC-BY Rangifer; Årg 20 Nr 4 (2000); 201-210 Rangifer; Vol 20 No 4 (2000); 201-210 1890-6729 reindeer fatty acids South Georgia Norway fermentation grasses lichen VFA woody plants info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2000 ftunitroemsoe https://doi.org/10.7557/2.20.4.1515 2021-08-16T14:59:38Z Dietary influence on pH and volatile fatty acids concentrations and production rates in the rumen and distal fermentation chamber (DFC) was investigated in Norwegian reindeer (Rangifer t. tarandus) on South Georgia in summer (SG), and in northern Norway in late summer (NS) and winter (NW). Mean [standard deviation (s)] ruminal pH was similar in SG teindeet (6.46, s = 0.13) and NW reindeer (6.45, s = 0.19), but significantly different from NS reindeer (6.87, s = 0.08)(P < 0.05). Mean DFC pH in SG reindeer (6.92, s = 0.12) and in NS reindeer (6.70, s = 0.16) did not differ significantly. In NW reindeer DFC pH (6.26, s = 0.20) was significantly lower than in the SG and NS animals (P < 0.05). Mean ruminal concentration of volatile fatty acids (VFA) was 92.4 mM (s = 13-3) in SG reindeer, which was significantly larger (P < 0.05) than in NS (71.5 mM, s = 10.2) and NW reindeer (73.3 mM, s = 9.7). In DFC mean VFA concentration was 51.3 mM (s = 11.7), and 48.8mM (s = 14.5) in SG and NW reindeer respectively, and significantly less than in NS reindeer (86.7mM, s = 5.4) (P < 0.05). Mean daily ruminal VFA rate of production was 246.4 kj/kg BM"" in SG teindeer, compared to 195.6 kj/kg BM"" in NS and 193.4 kJ/kgBM0 75 in NW reindeer. Mean daily VFA rate of production in DFC was 8.3 kj/kg BM0 75 in SG reindeer compared to 6.2 kj/kg BM07' in NS and 3.0 kj/kg BM"75 in NW reindeer. The summer pastures on SG and NS were of moderate quality in terms of ruminal VFA production. In winter in northern Norway when forage quality was assumed to be low, both ruminal and DFC pH were low. The high fermentation rate in winter was probably due to easily digestible carbohydrates in the lichens eaten. DFC seems to be of minor importance in these reindeer in terms of VFA energy yield. Article in Journal/Newspaper Northern Norway Rangifer Rangifer tarandus University of Tromsø: Septentrio Academic Publishing Norway Rangifer 20 2-3 201 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
reindeer fatty acids South Georgia Norway fermentation grasses lichen VFA woody plants |
spellingShingle |
reindeer fatty acids South Georgia Norway fermentation grasses lichen VFA woody plants Mathiesen, Svein D. Sørmo, Wenche Utsi, Tove H. Aagnes Comparative aspects of volatile fatty acid production in reindeer {Rangifer tarandus tarandus) in northern Norway and on South Georgia |
topic_facet |
reindeer fatty acids South Georgia Norway fermentation grasses lichen VFA woody plants |
description |
Dietary influence on pH and volatile fatty acids concentrations and production rates in the rumen and distal fermentation chamber (DFC) was investigated in Norwegian reindeer (Rangifer t. tarandus) on South Georgia in summer (SG), and in northern Norway in late summer (NS) and winter (NW). Mean [standard deviation (s)] ruminal pH was similar in SG teindeet (6.46, s = 0.13) and NW reindeer (6.45, s = 0.19), but significantly different from NS reindeer (6.87, s = 0.08)(P < 0.05). Mean DFC pH in SG reindeer (6.92, s = 0.12) and in NS reindeer (6.70, s = 0.16) did not differ significantly. In NW reindeer DFC pH (6.26, s = 0.20) was significantly lower than in the SG and NS animals (P < 0.05). Mean ruminal concentration of volatile fatty acids (VFA) was 92.4 mM (s = 13-3) in SG reindeer, which was significantly larger (P < 0.05) than in NS (71.5 mM, s = 10.2) and NW reindeer (73.3 mM, s = 9.7). In DFC mean VFA concentration was 51.3 mM (s = 11.7), and 48.8mM (s = 14.5) in SG and NW reindeer respectively, and significantly less than in NS reindeer (86.7mM, s = 5.4) (P < 0.05). Mean daily ruminal VFA rate of production was 246.4 kj/kg BM"" in SG teindeer, compared to 195.6 kj/kg BM"" in NS and 193.4 kJ/kgBM0 75 in NW reindeer. Mean daily VFA rate of production in DFC was 8.3 kj/kg BM0 75 in SG reindeer compared to 6.2 kj/kg BM07' in NS and 3.0 kj/kg BM"75 in NW reindeer. The summer pastures on SG and NS were of moderate quality in terms of ruminal VFA production. In winter in northern Norway when forage quality was assumed to be low, both ruminal and DFC pH were low. The high fermentation rate in winter was probably due to easily digestible carbohydrates in the lichens eaten. DFC seems to be of minor importance in these reindeer in terms of VFA energy yield. |
format |
Article in Journal/Newspaper |
author |
Mathiesen, Svein D. Sørmo, Wenche Utsi, Tove H. Aagnes |
author_facet |
Mathiesen, Svein D. Sørmo, Wenche Utsi, Tove H. Aagnes |
author_sort |
Mathiesen, Svein D. |
title |
Comparative aspects of volatile fatty acid production in reindeer {Rangifer tarandus tarandus) in northern Norway and on South Georgia |
title_short |
Comparative aspects of volatile fatty acid production in reindeer {Rangifer tarandus tarandus) in northern Norway and on South Georgia |
title_full |
Comparative aspects of volatile fatty acid production in reindeer {Rangifer tarandus tarandus) in northern Norway and on South Georgia |
title_fullStr |
Comparative aspects of volatile fatty acid production in reindeer {Rangifer tarandus tarandus) in northern Norway and on South Georgia |
title_full_unstemmed |
Comparative aspects of volatile fatty acid production in reindeer {Rangifer tarandus tarandus) in northern Norway and on South Georgia |
title_sort |
comparative aspects of volatile fatty acid production in reindeer {rangifer tarandus tarandus) in northern norway and on south georgia |
publisher |
Septentrio Academic Publishing |
publishDate |
2000 |
url |
https://septentrio.uit.no/index.php/rangifer/article/view/1515 https://doi.org/10.7557/2.20.4.1515 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway Rangifer Rangifer tarandus |
genre_facet |
Northern Norway Rangifer Rangifer tarandus |
op_source |
Rangifer; Årg 20 Nr 4 (2000); 201-210 Rangifer; Vol 20 No 4 (2000); 201-210 1890-6729 |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/1515/1422 https://septentrio.uit.no/index.php/rangifer/article/view/1515 doi:10.7557/2.20.4.1515 |
op_rights |
Copyright (c) 2015 Svein D. Mathiesen, Wenche Sørmo, Tove H. Aagnes Utsi http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/2.20.4.1515 |
container_title |
Rangifer |
container_volume |
20 |
container_issue |
2-3 |
container_start_page |
201 |
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1766145409621688320 |