This dataset content dynamic measurements of growth of chicks for different individuals and different strains. The data comes from a selection experiment on chicken initiated by F. Ricard Research Station on Poultry of INRA Nouzilly. The selection focuses on weight at 8 and 36 weeks and allowed to differentiate the following five strains:
strain 1 : X-+ (low at 8, but high at 36 weeks)
strain 2 : X+- (high at 8, but low at 36 weeks)
strain 3 : X++ (high weight at both ages)
strain 4 : X- (low weight for both ages)
strain 5 : X0 (control).
This is a sub-sample of 50 females in the last generation of selection with weight data (in g) at 12 different ages to complete measurement (0, 4, 6, 8, 12, 16, 20, 24; 28, 32, 36 and 40 weeks).
carcass_dataa RangedData instance, 1 row : strain ; id_animal ; time (day) ; liveweight (g).