Estimation of genetic parameters for farrowing traits in purebred Landrace and Large White pigs.
farrowing traits
female pigs
genetic parameter
number born alive
repeatability model
Journal
Animal science journal = Nihon chikusan Gakkaiho
ISSN: 1740-0929
Titre abrégé: Anim Sci J
Pays: Australia
ID NLM: 100956805
Informations de publication
Date de publication:
Jan 2019
Jan 2019
Historique:
received:
01
05
2018
revised:
24
06
2018
accepted:
31
07
2018
pubmed:
30
10
2018
medline:
12
2
2019
entrez:
30
10
2018
Statut:
ppublish
Résumé
Genetic parameters were estimated for six reproductive traits related to farrowing events in Landrace and Large White pigs; total number born (TNB), number born alive (NBA), number stillborn (NSB), total litter weight at birth (LWB), mean litter weight at birth (MWB), and gestation length (GL). We analyzed 62,534 farrowing records for 10,637 Landrace dams and 49,817 farrowing records for 8,649 Large White dams. Estimated heritabilities of TNB, NBA, NSB, LWB, MWB, and GL by single-trait repeatability model analyses were 0.12, 0.12, 0.08, 0.18, 0.19, and 0.29, respectively, in Landrace, and 0.12, 0.10, 0.08, 0.18, 0.16, and 0.34, respectively, in Large White. Genetic correlation between NBA and NSB was unfavorable: 0.20 in Landrace and 0.33 in Large White. Genetic correlations of GL with the other five traits were weak: from -0.18 with NSB to -0.03 with NBA in Landrace, and from -0.22 with NSB to -0.07 with NBA in Large White. LWB had a highly favorable genetic correlation with NBA (0.74 in both breeds), indicating the possibility of using LWB for the genetic improvement of NBA.
Identifiants
pubmed: 30370591
doi: 10.1111/asj.13120
pmc: PMC6587850
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
23-28Subventions
Organisme : Ministry of Agriculture, Forestry and Fisheries
Informations de copyright
© 2018 The Authors. Animal Science Journal published by John Wiley & Sons Australia, Ltd on behalf of Japanese Society of Animal Science.
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