Reproductive performance of reindeer fed all-grain and hay-grain rations
Reproductive performance of grain-fed reindeer {Rangifer tarandus) was evaluated over a 2-year period. Groups of pregnant reindeer were fed one of three rations, (1) 100% whole-grain barley, (2) 98.9% whole-grain barley and 1.2% mineral and trace element supplement, and (3) 70% whole-grain barley an...
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Septentrio Academic Publishing
1986
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Online Access: | https://doi.org/10.7557/2.6.2.580 https://doaj.org/article/396039c37a164c669cd6e618c20442e5 |
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ftdoajarticles:oai:doaj.org/article:396039c37a164c669cd6e618c20442e5 2023-05-15T18:04:02+02:00 Reproductive performance of reindeer fed all-grain and hay-grain rations J. M. Blanchard W. E. Hauer 1986-06-01T00:00:00Z https://doi.org/10.7557/2.6.2.580 https://doaj.org/article/396039c37a164c669cd6e618c20442e5 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/580 https://doaj.org/toc/1890-6729 doi:10.7557/2.6.2.580 1890-6729 https://doaj.org/article/396039c37a164c669cd6e618c20442e5 Rangifer, Vol 6, Iss 2 (1986) all-grain rations reindeer dystocia stillborn Animal culture SF1-1100 article 1986 ftdoajarticles https://doi.org/10.7557/2.6.2.580 2022-12-31T13:57:43Z Reproductive performance of grain-fed reindeer {Rangifer tarandus) was evaluated over a 2-year period. Groups of pregnant reindeer were fed one of three rations, (1) 100% whole-grain barley, (2) 98.9% whole-grain barley and 1.2% mineral and trace element supplement, and (3) 70% whole-grain barley and 30% finely-chopped bluegrass hay. Reindeer fed unsupplemented whole-barley failed to produce a single live calf. The addition of mineral and trace element supplement to the ration did not result in any significant improvement in reproductive performance. Eighty-five percent of the reindeer consuming unsupplemented and supplemented all-barley rations became pregnant; however, 76% of the pregnancies resulted in stillborn calves. One-hundred percent of the cows maintained on the grain/hay ration produced live calves. We speculate that reproductive failure in reindeer cows maintained on all-grain rations is most likely a result of a diet induced disfunction in maternal rumen and/or carbohydrate metabolism rather than a micro-nutrient deficiency. More research is neeeded to determine which metabolic pathways are affected. Article in Journal/Newspaper Rangifer Rangifer tarandus Directory of Open Access Journals: DOAJ Articles Rangifer 6 2 39 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
all-grain rations reindeer dystocia stillborn Animal culture SF1-1100 |
spellingShingle |
all-grain rations reindeer dystocia stillborn Animal culture SF1-1100 J. M. Blanchard W. E. Hauer Reproductive performance of reindeer fed all-grain and hay-grain rations |
topic_facet |
all-grain rations reindeer dystocia stillborn Animal culture SF1-1100 |
description |
Reproductive performance of grain-fed reindeer {Rangifer tarandus) was evaluated over a 2-year period. Groups of pregnant reindeer were fed one of three rations, (1) 100% whole-grain barley, (2) 98.9% whole-grain barley and 1.2% mineral and trace element supplement, and (3) 70% whole-grain barley and 30% finely-chopped bluegrass hay. Reindeer fed unsupplemented whole-barley failed to produce a single live calf. The addition of mineral and trace element supplement to the ration did not result in any significant improvement in reproductive performance. Eighty-five percent of the reindeer consuming unsupplemented and supplemented all-barley rations became pregnant; however, 76% of the pregnancies resulted in stillborn calves. One-hundred percent of the cows maintained on the grain/hay ration produced live calves. We speculate that reproductive failure in reindeer cows maintained on all-grain rations is most likely a result of a diet induced disfunction in maternal rumen and/or carbohydrate metabolism rather than a micro-nutrient deficiency. More research is neeeded to determine which metabolic pathways are affected. |
format |
Article in Journal/Newspaper |
author |
J. M. Blanchard W. E. Hauer |
author_facet |
J. M. Blanchard W. E. Hauer |
author_sort |
J. M. Blanchard |
title |
Reproductive performance of reindeer fed all-grain and hay-grain rations |
title_short |
Reproductive performance of reindeer fed all-grain and hay-grain rations |
title_full |
Reproductive performance of reindeer fed all-grain and hay-grain rations |
title_fullStr |
Reproductive performance of reindeer fed all-grain and hay-grain rations |
title_full_unstemmed |
Reproductive performance of reindeer fed all-grain and hay-grain rations |
title_sort |
reproductive performance of reindeer fed all-grain and hay-grain rations |
publisher |
Septentrio Academic Publishing |
publishDate |
1986 |
url |
https://doi.org/10.7557/2.6.2.580 https://doaj.org/article/396039c37a164c669cd6e618c20442e5 |
genre |
Rangifer Rangifer tarandus |
genre_facet |
Rangifer Rangifer tarandus |
op_source |
Rangifer, Vol 6, Iss 2 (1986) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/580 https://doaj.org/toc/1890-6729 doi:10.7557/2.6.2.580 1890-6729 https://doaj.org/article/396039c37a164c669cd6e618c20442e5 |
op_doi |
https://doi.org/10.7557/2.6.2.580 |
container_title |
Rangifer |
container_volume |
6 |
container_issue |
2 |
container_start_page |
39 |
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1766175288044027904 |