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...
Published in: | Rangifer |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Septentrio Academic Publishing
1992
|
Subjects: | |
Online Access: | https://septentrio.uit.no/index.php/rangifer/article/view/1026 https://doi.org/10.7557/2.12.2.1026 |
id |
ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/1026 |
---|---|
record_format |
openpolar |
spelling |
ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/1026 2023-05-15T18:03:54+02:00 Pastures, calf production and carcass weights of reindeer calves in the Oraniemi co-operative, Finnish Lapland Kumpula, Jouko Nieminen, Mauri 1992-10-01 application/pdf https://septentrio.uit.no/index.php/rangifer/article/view/1026 https://doi.org/10.7557/2.12.2.1026 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/1026/980 https://septentrio.uit.no/index.php/rangifer/article/view/1026 doi:10.7557/2.12.2.1026 Copyright (c) 2015 Jouko Kumpula, Mauri Nieminen http://creativecommons.org/licenses/by/3.0/ CC-BY Rangifer; Årg 12 Nr 2 (1992); 93-104 Rangifer; Vol 12 No 2 (1992); 93-104 1890-6729 reindeer calf production climatic influence habitat use insect harassment Finland info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1992 ftunitroemsoe https://doi.org/10.7557/2.12.2.1026 2021-08-16T14:46:39Z 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 University of Tromsø: Septentrio Academic Publishing Rangifer 12 3 93 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
reindeer calf production climatic influence habitat use insect harassment Finland |
spellingShingle |
reindeer calf production climatic influence habitat use insect harassment Finland Kumpula, Jouko Nieminen, Mauri 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 |
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 |
Kumpula, Jouko Nieminen, Mauri |
author_facet |
Kumpula, Jouko Nieminen, Mauri |
author_sort |
Kumpula, Jouko |
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://septentrio.uit.no/index.php/rangifer/article/view/1026 https://doi.org/10.7557/2.12.2.1026 |
genre |
Rangifer Lapland |
genre_facet |
Rangifer Lapland |
op_source |
Rangifer; Årg 12 Nr 2 (1992); 93-104 Rangifer; Vol 12 No 2 (1992); 93-104 1890-6729 |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/1026/980 https://septentrio.uit.no/index.php/rangifer/article/view/1026 doi:10.7557/2.12.2.1026 |
op_rights |
Copyright (c) 2015 Jouko Kumpula, Mauri Nieminen http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/2.12.2.1026 |
container_title |
Rangifer |
container_volume |
12 |
container_issue |
3 |
container_start_page |
93 |
_version_ |
1766175000644026368 |