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Genetic analysis of...
Genetic analysis of teat number and litter traits in pigs
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- Lundeheim, Nils (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för husdjursgenetik (HGEN),Department of Animal Breeding and Genetics
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- Chalkias, Helena (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för husdjursgenetik (HGEN),Department of Animal Breeding and Genetics
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- Rydhmer, Lotta (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för husdjursgenetik (HGEN),Department of Animal Breeding and Genetics
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(creator_code:org_t)
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- Informa UK Limited, 2013
- 2013
- English.
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In: Acta Agriculturae Scandinavica, Section A - Animal Science. - : Informa UK Limited. - 0906-4702 .- 1651-1972. ; 63, s. 121-125
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Abstract
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- The aim of this study was to analyse, on data on purebred Yorkshire pigs in Swedish nucleus herds, the genetic correlation between teat number (both functional and non-functional) recorded at performance testing (at approx. 100 kg live weight), litter size at birth and litter weight at 3 weeks of age. Animal mixed-model analysis was applied on the data available (57,000 performance tested pigs, 10,000 1st-parity litters and 6500 2nd-parity litters). The estimated heritability for number of functional teats was 0.31, for number of non-functional teats 0.09 and for total number of teats 0.39. Number of non-functional teats was negatively genetically correlated with number of functional teats (r(G) = -0.34), and positively correlated with litter size (parity 1; +0.20) and number of stillborn piglets (parity 2; +0.34).
Subject headings
- LANTBRUKSVETENSKAPER -- Bioteknologi med applikationer på växter och djur -- Genetik och förädling inom lantbruksvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agricultural Biotechnology -- Genetics and Breeding in Agricultural Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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