highly significantP < 0.001
Results and Discussion Systematic environmental effects Breed, sex, year, and the linear regression on age were highly significant ( P < 0.001) in the preliminary model.
Results and Discussion Systematic environmental effects Breed, sex, year, and the linear regression on age were highly significant ( P < 0.001) in the preliminary model.
Litter size was almost significant ( P = 0.06) and we decided to include it in the genetic models [1] to [5].