Porcine experimental farms
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INRA photographic library
Programs on the detection and fine-mapping of QTL, maternal aptitude of sows, immune response, preservation of lines, analysis of genetic linkage
THE GENETICS AND EXPERIMENTATION IN ANIMAL PRODUCTION (GEPA) UNIT
Two porcine experimental farms belong to this unit: Magneraud (French department 17) and Rouillé (French department 86). The unit houses a herd of 200 experimental sows.
GABI is involved in the following main genetic experiments:
- divergent selection on residual feed intake
- QTL detection for food consumption; measurement of the genetic evolution of different traits
- genetic variability for parturition dynamics and litter characteristics
- genetic variability of maternal aptitude of sows in a system without any animal restraint
- fine mapping of QTL for body composition on chromosomes 2 and 7
- search for QTL for intramuscular fat; fine-mapping of QTL segregating in commercial line
- management of line susceptibility to atherosclerosis; analysis of melanoma susceptibility in the MeLiM line; genetic variability of the immune reaction
> Unit Presentation
THE EXPERIMENTAL FARM FOR PIG TESTING AT LE RHEU
This unit is one of two public porcine selection structures. It is open to breeders and has the capacity to characterise a large number of genotypes, providing an essential advantage for genomics programs.
Its activities are centered exclusively on the growing pig and concern in particular the following:
- testing final products of selection and crossbreeding schemes
- testing "collateral" male reproducing animals for growth, carcass and meat quality traits
- objective measurement in the "genetic linkage" scheme of the effect of a certain number of genes and QTL
- fine-mapping of QTL within the Biomark program study of immune parameters in the Immopig program
> Unit Presentation
Writing:
N. Dechamp - Edition P. Huan - Translation W. Brand-Williams and H. Hayes
Creation date: 12 April 2010
Update: 02 September 2011
