Pastures, calf production and carcass weights of reindeer calves in the Oraniemi co-operative, Finnish Lapland
The effects of climatic and density-dependent factors on calf production and carcass weights of reindeer calves were studied between the years 1965-87 in the Oraniemi co-operative, Finnish Lapland (67°50´N). The Oraniemi area is divided into five pasture regions, in which the annual home range of th...
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Septentrio Academic Publishing
1992
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ftdoajarticles:oai:doaj.org/article:109c9aa62f4945519bb6b64843e0e425 2023-05-15T18:03:57+02:00 Pastures, calf production and carcass weights of reindeer calves in the Oraniemi co-operative, Finnish Lapland Jouko Kumpula Mauri Nieminen 1992-10-01T00:00:00Z https://doi.org/10.7557/2.12.2.1026 https://doaj.org/article/109c9aa62f4945519bb6b64843e0e425 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/1026 https://doaj.org/toc/1890-6729 doi:10.7557/2.12.2.1026 1890-6729 https://doaj.org/article/109c9aa62f4945519bb6b64843e0e425 Rangifer, Vol 12, Iss 2 (1992) reindeer calf production climatic influence habitat use insect harassment Finland Animal culture SF1-1100 article 1992 ftdoajarticles https://doi.org/10.7557/2.12.2.1026 2022-12-31T00:30:44Z The effects of climatic and density-dependent factors on calf production and carcass weights of reindeer calves were studied between the years 1965-87 in the Oraniemi co-operative, Finnish Lapland (67°50´N). The Oraniemi area is divided into five pasture regions, in which the annual home range of the reindeer varied from 300 to 600 km2. The more than trebled reindeer density over the period 1965-87 in Oraniemi had no detrimental effect on calf production (range 15-74 calves/100 females), nor on the mean carcass weight of the calves in 1974-87 (range 16.8-23.2 kg). The annual variations in calf% were explained best by snow conditions during the previous winter and spring and their effects on the nutritional status of the females. The carcass weights of the calves were greater following a warm, rainy May and lower following a warm, rainy June and July. The weather in spring affects the emergence of green vegetation, which is reflected in the condition of females and their milk production, while the weather in early and mid-supper probably affects the quantities of blood-sucking insects and their activity. Carcass weights upon slaughtering rose from September to the beginning of December but then fell quickly. The differences in reindeer densities between the five pasture regions was not reflected in the calf% over the period 1984-87, but the carcass weights of calves were lower following high densities in the pasture regions, especially in the winter pastures. Article in Journal/Newspaper Rangifer Lapland Directory of Open Access Journals: DOAJ Articles Rangifer 12 3 93 |
institution |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
reindeer calf production climatic influence habitat use insect harassment Finland Animal culture SF1-1100 |
spellingShingle |
reindeer calf production climatic influence habitat use insect harassment Finland Animal culture SF1-1100 Jouko Kumpula Mauri Nieminen Pastures, calf production and carcass weights of reindeer calves in the Oraniemi co-operative, Finnish Lapland |
topic_facet |
reindeer calf production climatic influence habitat use insect harassment Finland Animal culture SF1-1100 |
description |
The effects of climatic and density-dependent factors on calf production and carcass weights of reindeer calves were studied between the years 1965-87 in the Oraniemi co-operative, Finnish Lapland (67°50´N). The Oraniemi area is divided into five pasture regions, in which the annual home range of the reindeer varied from 300 to 600 km2. The more than trebled reindeer density over the period 1965-87 in Oraniemi had no detrimental effect on calf production (range 15-74 calves/100 females), nor on the mean carcass weight of the calves in 1974-87 (range 16.8-23.2 kg). The annual variations in calf% were explained best by snow conditions during the previous winter and spring and their effects on the nutritional status of the females. The carcass weights of the calves were greater following a warm, rainy May and lower following a warm, rainy June and July. The weather in spring affects the emergence of green vegetation, which is reflected in the condition of females and their milk production, while the weather in early and mid-supper probably affects the quantities of blood-sucking insects and their activity. Carcass weights upon slaughtering rose from September to the beginning of December but then fell quickly. The differences in reindeer densities between the five pasture regions was not reflected in the calf% over the period 1984-87, but the carcass weights of calves were lower following high densities in the pasture regions, especially in the winter pastures. |
format |
Article in Journal/Newspaper |
author |
Jouko Kumpula Mauri Nieminen |
author_facet |
Jouko Kumpula Mauri Nieminen |
author_sort |
Jouko Kumpula |
title |
Pastures, calf production and carcass weights of reindeer calves in the Oraniemi co-operative, Finnish Lapland |
title_short |
Pastures, calf production and carcass weights of reindeer calves in the Oraniemi co-operative, Finnish Lapland |
title_full |
Pastures, calf production and carcass weights of reindeer calves in the Oraniemi co-operative, Finnish Lapland |
title_fullStr |
Pastures, calf production and carcass weights of reindeer calves in the Oraniemi co-operative, Finnish Lapland |
title_full_unstemmed |
Pastures, calf production and carcass weights of reindeer calves in the Oraniemi co-operative, Finnish Lapland |
title_sort |
pastures, calf production and carcass weights of reindeer calves in the oraniemi co-operative, finnish lapland |
publisher |
Septentrio Academic Publishing |
publishDate |
1992 |
url |
https://doi.org/10.7557/2.12.2.1026 https://doaj.org/article/109c9aa62f4945519bb6b64843e0e425 |
genre |
Rangifer Lapland |
genre_facet |
Rangifer Lapland |
op_source |
Rangifer, Vol 12, Iss 2 (1992) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/1026 https://doaj.org/toc/1890-6729 doi:10.7557/2.12.2.1026 1890-6729 https://doaj.org/article/109c9aa62f4945519bb6b64843e0e425 |
op_doi |
https://doi.org/10.7557/2.12.2.1026 |
container_title |
Rangifer |
container_volume |
12 |
container_issue |
3 |
container_start_page |
93 |
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1766175185212276736 |