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Heritability and connections of sow fertility traits

Naslednost i povezanost osobina plodnosti krmača

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2012
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Authors
Popovac, Mladen M.
Radojković, Dragan D.
Petrović, M.
Mijatović, Milan
Gogić, Marija
Stanojević, D.
Stanišić, Nikola
article (publishedVersion)
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Abstract
Purpose of this paper was to determine fertility traits heritability coefficients of the sows (number of live born, total number of born, stillborn and reared piglets in the litter) and interconnections between these traits. Heritability coefficients were low and averaged in interval from h2 = 0,056 for number of reared piglets in litter to h2 = 0,142 for total number of born piglets in litter, which is in accordance with heritability values for reproductive traits. Genetic interconnections of these traits had wide variation interval and averaged from r = - 0,221 between number of still born and reared piglets in litter to r = 0,947 between total number of born and number of live born piglets in litter. Coefficients of phenotype correlation varied in interval from r = -0,162 between number of still born and number of live born piglets in litter to r = 0,909 between total number of born and number of live born piglets in litter.
Cilj rada bio je da se utvrde koeficijenti naslednosti osobina plodnosti krmača (broj živorođene, ukupno rođene, mrtvorođene i odgajene prasadi u leglu) i međusobna povezanost ovih osobina. Koeficijenti heritabiliteta su bili niski i kretali su se u intervalu od h2 = 0,056 za broj odgajene prasadi u leglu do h2 = 0,142 za broj ukupno rođene prasadi u leglu, što je u skladu sa vrednostima heritabiliteta za reproduktivne osobine. Genetska povezanost ovih osobina imala je širok interval variranja i kretala se od r = -0,221 između broja mrtvorođene i broja odgajene prasadi u leglu, do r = 0,947 između broja ukupno rođene i broja živorođene prasadi u leglu. Koeficijenti fenotipske korelacije kretali su se u intervalu od r = -0,162 između broja mrtvorođene i broja živorođene prasadi u leglu, do r = 0,909 između broja ukupno rođene i broja živorođene prasadi u leglu.
Keywords:
sow / heritability / genetic and phenotype connection
Source:
Biotechnology in Animal Husbandry, 2012, 28, 3, 469-475
Publisher:
  • Institute for Animal Husbandry, Belgrade
Funding / projects:
  • info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31081/RS// (RS-31081)

DOI: 10.2298/BAH1203469P

ISSN: 1450-9156

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URI
http://r.istocar.bg.ac.rs/handle/123456789/346
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