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Genome-wide association and systems genetic analyses of residual feed intake, daily feed consumption, backfat and weight gain in pigs

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Duy Ngoc Do
  • Tage Ostersen
  • Anders Bjerring Strathe
  • Thomas Mark
  • Just Jensen
  • Haja Kadarmideen
Feed efficiency is one of the major components determining costs of animal production. Residual feed intake (RFI) is defined as the difference between the observed and the expected feed intake given a certain production. Residual feed intake 1 (RFI1) was calculated based on regression of individual daily feed intake (DFI) on initial test weight and average daily gain. Residual feed intake 2 (RFI2) was as RFI1 except it was also regressed with respect to backfat (BF). It has been shown to be a sensitive and accurate measure for feed efficiency in livestock but knowledge of the genomic regions and mechanisms affecting RFI in pigs is lacking. The study aimed to identify genetic markers and candidate genes for RFI and its component traits as well as pathways associated with RFI in Danish Duroc boars by genome-wide associations and systems genetic analyses.
OriginalsprogEngelsk
Artikelnummer27
TidsskriftB M C Genetics
Vol/bind15
Antal sider15
ISSN1471-2156
DOI
StatusUdgivet - 2014

ID: 101291219