Genetic variation in meat production related traits in reindeer (Rangifer t. tarandus)
In reindeer husbandry, animal breeding could offer tools for improving productivity by selection. The traits affecting meat production efficiency are primarily related to calf growth and survival, and to dam’s longevity and lifetime ability to raise heavy calves. Information on genetic (co)variation...
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Septentrio Academic Publishing
2014
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ftdoajarticles:oai:doaj.org/article:3b4a7418e28a41f88eb23977b9c46ed3 2023-05-15T16:53:47+02:00 Genetic variation in meat production related traits in reindeer (Rangifer t. tarandus) Kirsi Muuttoranta Øystein Holand Knut H. Røed Miika Tapio Mauri Nieminen Asko Mäki-Tanila 2014-02-01T00:00:00Z https://doi.org/10.7557/2.34.1.2753 https://doaj.org/article/3b4a7418e28a41f88eb23977b9c46ed3 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/2753 https://doaj.org/toc/1890-6729 doi:10.7557/2.34.1.2753 1890-6729 https://doaj.org/article/3b4a7418e28a41f88eb23977b9c46ed3 Rangifer, Vol 34, Iss 1 (2014) growth lifetime production individual fitness heritability maternal effect genetic correlation Animal culture SF1-1100 article 2014 ftdoajarticles https://doi.org/10.7557/2.34.1.2753 2022-12-31T13:47:21Z In reindeer husbandry, animal breeding could offer tools for improving productivity by selection. The traits affecting meat production efficiency are primarily related to calf growth and survival, and to dam’s longevity and lifetime ability to raise heavy calves. Information on genetic (co)variation in these traits is scarce but needed in estimating the potential and effectiveness of selection as well as biological constraints. The objectives of the study were to estimate these genetic parameters from the data of an experimental reindeer herd at Kutuharju (Inari, Finland). Heritabilities (h2) and genetic correlations (rg) among the average daily gain of calves (ADG), dams’ age at maturity, individual fitness (λind) and the cumulative sum of her calves’ weaning weight over seven years (WW7) were studied with AS-Reml software using the dataset from the experimental herd. The pedigree included also sire information to allow the separation of the maternal effects. Direct and maternal heritabilities of ADG were moderate (0.24±0.09 and 0.18±0.05, respectively) and the direct-maternal correlation was highly negative (-0.73±0.17). Indeed, selection on growth necessitates information on both calf and dam. The genetic correlation of growth with birth date and birth weight could not be detected with the data. The age at maturity and λind had a small heritable component (0.07±0.12 and 0.10±0.06, respectively), whereas the heritability value of WW7 was 0.23±0.07. Reindeer herders’ empirical selection on calf’s autumn weight favours fast growth (rg between growth and autumn weight = 0.35±0.24). Dam’s weight in her first autumn was strongly correlated with her lifetime production expressed by her individual fitness (rg = 0.71±0.23) and the cumulative sum of her calves’ weaning weight (rg = 0.63±0.12). Hence, the early information on the dam (her weight in her first autumn or her first calf’s autumn weight) works as useful selection criteria for the traits related to lifetime production. Article in Journal/Newspaper Inari Rangifer reindeer husbandry Directory of Open Access Journals: DOAJ Articles Inari ENVELOPE(27.029,27.029,68.906,68.906) Rangifer 34 1 21 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
growth lifetime production individual fitness heritability maternal effect genetic correlation Animal culture SF1-1100 |
spellingShingle |
growth lifetime production individual fitness heritability maternal effect genetic correlation Animal culture SF1-1100 Kirsi Muuttoranta Øystein Holand Knut H. Røed Miika Tapio Mauri Nieminen Asko Mäki-Tanila Genetic variation in meat production related traits in reindeer (Rangifer t. tarandus) |
topic_facet |
growth lifetime production individual fitness heritability maternal effect genetic correlation Animal culture SF1-1100 |
description |
In reindeer husbandry, animal breeding could offer tools for improving productivity by selection. The traits affecting meat production efficiency are primarily related to calf growth and survival, and to dam’s longevity and lifetime ability to raise heavy calves. Information on genetic (co)variation in these traits is scarce but needed in estimating the potential and effectiveness of selection as well as biological constraints. The objectives of the study were to estimate these genetic parameters from the data of an experimental reindeer herd at Kutuharju (Inari, Finland). Heritabilities (h2) and genetic correlations (rg) among the average daily gain of calves (ADG), dams’ age at maturity, individual fitness (λind) and the cumulative sum of her calves’ weaning weight over seven years (WW7) were studied with AS-Reml software using the dataset from the experimental herd. The pedigree included also sire information to allow the separation of the maternal effects. Direct and maternal heritabilities of ADG were moderate (0.24±0.09 and 0.18±0.05, respectively) and the direct-maternal correlation was highly negative (-0.73±0.17). Indeed, selection on growth necessitates information on both calf and dam. The genetic correlation of growth with birth date and birth weight could not be detected with the data. The age at maturity and λind had a small heritable component (0.07±0.12 and 0.10±0.06, respectively), whereas the heritability value of WW7 was 0.23±0.07. Reindeer herders’ empirical selection on calf’s autumn weight favours fast growth (rg between growth and autumn weight = 0.35±0.24). Dam’s weight in her first autumn was strongly correlated with her lifetime production expressed by her individual fitness (rg = 0.71±0.23) and the cumulative sum of her calves’ weaning weight (rg = 0.63±0.12). Hence, the early information on the dam (her weight in her first autumn or her first calf’s autumn weight) works as useful selection criteria for the traits related to lifetime production. |
format |
Article in Journal/Newspaper |
author |
Kirsi Muuttoranta Øystein Holand Knut H. Røed Miika Tapio Mauri Nieminen Asko Mäki-Tanila |
author_facet |
Kirsi Muuttoranta Øystein Holand Knut H. Røed Miika Tapio Mauri Nieminen Asko Mäki-Tanila |
author_sort |
Kirsi Muuttoranta |
title |
Genetic variation in meat production related traits in reindeer (Rangifer t. tarandus) |
title_short |
Genetic variation in meat production related traits in reindeer (Rangifer t. tarandus) |
title_full |
Genetic variation in meat production related traits in reindeer (Rangifer t. tarandus) |
title_fullStr |
Genetic variation in meat production related traits in reindeer (Rangifer t. tarandus) |
title_full_unstemmed |
Genetic variation in meat production related traits in reindeer (Rangifer t. tarandus) |
title_sort |
genetic variation in meat production related traits in reindeer (rangifer t. tarandus) |
publisher |
Septentrio Academic Publishing |
publishDate |
2014 |
url |
https://doi.org/10.7557/2.34.1.2753 https://doaj.org/article/3b4a7418e28a41f88eb23977b9c46ed3 |
long_lat |
ENVELOPE(27.029,27.029,68.906,68.906) |
geographic |
Inari |
geographic_facet |
Inari |
genre |
Inari Rangifer reindeer husbandry |
genre_facet |
Inari Rangifer reindeer husbandry |
op_source |
Rangifer, Vol 34, Iss 1 (2014) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/2753 https://doaj.org/toc/1890-6729 doi:10.7557/2.34.1.2753 1890-6729 https://doaj.org/article/3b4a7418e28a41f88eb23977b9c46ed3 |
op_doi |
https://doi.org/10.7557/2.34.1.2753 |
container_title |
Rangifer |
container_volume |
34 |
container_issue |
1 |
container_start_page |
21 |
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1766044348454010880 |