Enhance the overall "efficiency" of the flock—producing more output with the same input.
Understanding the genetic parameters of sheep is the backbone of any successful breeding program. It allows producers to move beyond guesswork and use data to predict how traits like growth, wool quality, and fertility will pass from one generation to the next. 1. Heritability ( h2h squared ): The "Pass-on" Rate Genetic Parameters for Sheep Production Traits
Traits like carcass lean meat yield and fiber diameter. You can make rapid progress just by selecting the best-performing individuals. Reproductive traits like twinning rates or lamb survival
Reproductive traits like twinning rates or lamb survival. Because these are heavily influenced by environment/management, progress through breeding is slow. 2. Genetic Correlations: The "Package Deal" progress through breeding is slow. 2.
Traits rarely move in isolation. When you select for one, you often get a change in another—sometimes for the better, sometimes not.
Selecting for higher yearling weight usually leads to higher birth weights.