Breeding value evaluation in Polish fur animals: Estimates of (co)variances due to direct and litter effects for fur coat and reproduction traits
5 540 records of the arctic fox fur coat and reproductive traits collected in 1983-1999 were studied. The analyzed traits were: body size (BS), colour type (CT), colour purity (CP), coat density (CD), hair length (HL), general appearance (GA), total score (TS), skin length (SL), litter size at birth...
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Czech Academy of Agricultural Sciences
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ftdoajarticles:oai:doaj.org/article:667035c6b314422a91e092868181d044 2023-05-15T14:31:09+02:00 Breeding value evaluation in Polish fur animals: Estimates of (co)variances due to direct and litter effects for fur coat and reproduction traits H. Wierzbicki W. Jagusiak 2006-01-01T00:00:00Z https://doi.org/10.17221/3907-CJAS https://doaj.org/article/667035c6b314422a91e092868181d044 EN eng Czech Academy of Agricultural Sciences https://cjas.agriculturejournals.cz/artkey/cjs-200601-0006_breeding-value-evaluation-in-polish-fur-animals-estimates-of-co-variances-due-to-direct-and-litter-effects-fo.php https://doaj.org/toc/1212-1819 https://doaj.org/toc/1805-9309 1212-1819 1805-9309 doi:10.17221/3907-CJAS https://doaj.org/article/667035c6b314422a91e092868181d044 Czech Journal of Animal Science, Vol 51, Iss 1, Pp 39-46 (2006) arctic fox fur coat traits genetic parameters normal probability scale transformation reproductive traits Animal culture SF1-1100 article 2006 ftdoajarticles https://doi.org/10.17221/3907-CJAS 2023-02-26T01:35:02Z 5 540 records of the arctic fox fur coat and reproductive traits collected in 1983-1999 were studied. The analyzed traits were: body size (BS), colour type (CT), colour purity (CP), coat density (CD), hair length (HL), general appearance (GA), total score (TS), skin length (SL), litter size at birth (LSB), litter size at weaning (LSW), number of dead pups (NPD), pup weight at weaning (PW), and pregnancy length (PL). (Co)variance components were estimated using a derivative-free algorithm of REML and a multi-trait animal model. Random effects were direct additive, common litter environment and residual. The genetic parameters for the fur coat traits (discrete characters) were estimated twice: using the original data set, and the data set in which the distribution of fur coat scores was normalised using a probit link function. Direct heritability estimates obtained from the original data set ranged from 0.108 for SL to 0.276 for HL, and were somewhat lower than those estimated using the transformed data set (they ranged from 0.109 for GA to 0.315 for CT). Reproductive traits were lowly heritable with direct heritabilities ranging from 0.060 for PW to 0.174 for LSB. Estimates of the portion of litter variation calculated from the original and transformed data set were comparable ranging from 0.045 for GA to 0.156 for CP, and from 0.059 for GA to 0.185 for TS, respectively. Genetic correlations between fur coat traits ranged from high favourable (0.948 between SL and BS, original data) to strong negative ones between CP and GA (-0.405, transformed data). High positive genetic correlations were found between LSB and LSW (0.954), and between LSB and NPD (0.783), whereas PL was negatively correlated with all other reproductive traits. Article in Journal/Newspaper Arctic Fox Arctic Directory of Open Access Journals: DOAJ Articles Arctic Czech Journal of Animal Science 51 1 39 46 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
arctic fox fur coat traits genetic parameters normal probability scale transformation reproductive traits Animal culture SF1-1100 |
spellingShingle |
arctic fox fur coat traits genetic parameters normal probability scale transformation reproductive traits Animal culture SF1-1100 H. Wierzbicki W. Jagusiak Breeding value evaluation in Polish fur animals: Estimates of (co)variances due to direct and litter effects for fur coat and reproduction traits |
topic_facet |
arctic fox fur coat traits genetic parameters normal probability scale transformation reproductive traits Animal culture SF1-1100 |
description |
5 540 records of the arctic fox fur coat and reproductive traits collected in 1983-1999 were studied. The analyzed traits were: body size (BS), colour type (CT), colour purity (CP), coat density (CD), hair length (HL), general appearance (GA), total score (TS), skin length (SL), litter size at birth (LSB), litter size at weaning (LSW), number of dead pups (NPD), pup weight at weaning (PW), and pregnancy length (PL). (Co)variance components were estimated using a derivative-free algorithm of REML and a multi-trait animal model. Random effects were direct additive, common litter environment and residual. The genetic parameters for the fur coat traits (discrete characters) were estimated twice: using the original data set, and the data set in which the distribution of fur coat scores was normalised using a probit link function. Direct heritability estimates obtained from the original data set ranged from 0.108 for SL to 0.276 for HL, and were somewhat lower than those estimated using the transformed data set (they ranged from 0.109 for GA to 0.315 for CT). Reproductive traits were lowly heritable with direct heritabilities ranging from 0.060 for PW to 0.174 for LSB. Estimates of the portion of litter variation calculated from the original and transformed data set were comparable ranging from 0.045 for GA to 0.156 for CP, and from 0.059 for GA to 0.185 for TS, respectively. Genetic correlations between fur coat traits ranged from high favourable (0.948 between SL and BS, original data) to strong negative ones between CP and GA (-0.405, transformed data). High positive genetic correlations were found between LSB and LSW (0.954), and between LSB and NPD (0.783), whereas PL was negatively correlated with all other reproductive traits. |
format |
Article in Journal/Newspaper |
author |
H. Wierzbicki W. Jagusiak |
author_facet |
H. Wierzbicki W. Jagusiak |
author_sort |
H. Wierzbicki |
title |
Breeding value evaluation in Polish fur animals: Estimates of (co)variances due to direct and litter effects for fur coat and reproduction traits |
title_short |
Breeding value evaluation in Polish fur animals: Estimates of (co)variances due to direct and litter effects for fur coat and reproduction traits |
title_full |
Breeding value evaluation in Polish fur animals: Estimates of (co)variances due to direct and litter effects for fur coat and reproduction traits |
title_fullStr |
Breeding value evaluation in Polish fur animals: Estimates of (co)variances due to direct and litter effects for fur coat and reproduction traits |
title_full_unstemmed |
Breeding value evaluation in Polish fur animals: Estimates of (co)variances due to direct and litter effects for fur coat and reproduction traits |
title_sort |
breeding value evaluation in polish fur animals: estimates of (co)variances due to direct and litter effects for fur coat and reproduction traits |
publisher |
Czech Academy of Agricultural Sciences |
publishDate |
2006 |
url |
https://doi.org/10.17221/3907-CJAS https://doaj.org/article/667035c6b314422a91e092868181d044 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Fox Arctic |
genre_facet |
Arctic Fox Arctic |
op_source |
Czech Journal of Animal Science, Vol 51, Iss 1, Pp 39-46 (2006) |
op_relation |
https://cjas.agriculturejournals.cz/artkey/cjs-200601-0006_breeding-value-evaluation-in-polish-fur-animals-estimates-of-co-variances-due-to-direct-and-litter-effects-fo.php https://doaj.org/toc/1212-1819 https://doaj.org/toc/1805-9309 1212-1819 1805-9309 doi:10.17221/3907-CJAS https://doaj.org/article/667035c6b314422a91e092868181d044 |
op_doi |
https://doi.org/10.17221/3907-CJAS |
container_title |
Czech Journal of Animal Science |
container_volume |
51 |
container_issue |
1 |
container_start_page |
39 |
op_container_end_page |
46 |
_version_ |
1766304859485634560 |