Experimental lines
Experiments led by GABI on animal lines or genotypes are carried out on our experimental farms. These populations are either lines selected within INRA or imported lines. Some of these lines are fixed for major genes. They constitute models for the study of various traits and lead to the creation of many partnerships.
Selection experiments involve the production of lines with extreme phenotypes obtained by selecting a closed or open population on a given trait over several generations. Thus the genetic determinsim of a trait, estimation of its relationship with other traits and identification of its physiological components can be inferred and animal models can be produced to study how the phenotype is constituted. A large part of our experimental capacity is dedicated to the creation, maintenance and characterisation of these lines.
CATTLE
- INRA95 "double muscled" line with a major muscular development; this line is used in artifical insemination for industrial crossbreeding (Carmaux)
- Bovine Charolais line for muscle growth rate (Bourges)
- Two bovine lines (Maine Anjou and Holstein x Charolais synthetic line) with a high twinning rate (Grêleraie)
GOATS
- Population nucleus of goats without casein alpha-S1 (Bourges, in partnership with SAGA Toulouse)
RABBITS
- Orylag line of rabbits, selected for fur quality (GEPA, in relation with SAGA (Animal Genetics and Improvement unit Toulouse)
PIGS
- Divergent lines in pigs selected for residual feed consumption (GEPA)
- Pig lines selected for immune response (GEPA)
- Pig lines presenting spontaneous atherosclerosis (GEPA)
- MeLiM pig line developing spontaneous melanoma (GEPA and Jouy-en-Josas)
- Population nucleus of Meishan pigs of Chinese origin (GEPA)
CHICKENS (PEAT)
- Two R+ and R- lines divergently selected for their residual feed consumption
- A dwarf line, with or without a naked neck, selected for laying aptitude
- Three lines selected for their immune response to three types of aggression and one control line
- A line carrying an autosomal recessive major gene for susceptibility to epilepsy
- The Egyptian Fayoumi line presenting many specificities including resistance to several diseases
- The Leghorn line with multiple ovulation
- A flock with a reservoir of genes with visible effects (colour of feathers or eggs, morphology)
- Leghorn line devoid of endogenous viral genes
QUAIL (PEAT)
- A line selected for early laying
- A Japanese line for different genes with visible effects
- A hybrid between the Japanese quail and common quail
TROUT (PEIMA)
- A rainbow trout line selected for autumn egg-laying
- A rainbow trout line selected for winter egg-laying
- A rainbow trout line selected for spring egg-laying
- A "Golden" rainbow trout (dominant albinism)
- A rainbow trout line carrying a minor sexual determinant
- Divergent rainbow trout lines selected for their intramuscular fattening capacity
- Ten stable homozygous rainbow trout lines
- Common trout selected for growth rate
- Trout selected for growth with plant-based feed
- Divergent lines of rainbow trout selected for their resistance to viral hemorrhagic septicemia virus (VSHV)
Writing:
Translation W. Brand-Williams and H. Hayes
Creation date: 16 April 2010
Update: 02 September 2011
