In some breeds, selecting heavily for increased fleece weight can lead to a slight decrease in fiber fineness.
Growth rates and weaning weights. These respond well to selection but are influenced by the mother’s milk production.
Are you looking to apply these parameters to a or focusing on a particular goal like meat yield versus wool quality ?
Traits rarely move in isolation. When you select for one, you often get a change in another—sometimes for the better, sometimes not.
Heritability measures how much of the variation in a trait is due to genetics rather than environment (feed, weather, management).
Enhance the overall "efficiency" of the flock—producing more output with the same input.
Traits like carcass lean meat yield and fiber diameter. You can make rapid progress just by selecting the best-performing individuals.