Without knowing these parameters, a producer might spend years trying to "breed" for a trait that is actually 90% determined by the quality of the pasture. By focusing on and using Estimated Breeding Values (EBVs) , you can: Increase the average weight of lambs at market. Improve the uniformity and micron of wool clips.
Breeders use "Selection Indices" to balance these correlations, ensuring they don't accidentally compromise animal health or product quality while chasing growth. 3. Repeatability: Consistency Over Time Genetic Parameters for Sheep Production Traits
Heritability measures how much of the variation in a trait is due to genetics rather than environment (feed, weather, management). Without knowing these parameters, a producer might spend
This is crucial for "ewe productivity" traits. If a ewe performs well in her first lambing season (e.g., weaning a heavy lamb), repeatability tells us how likely she is to repeat 그 performance next year. High repeatability allows producers to cull underperforming animals early with confidence. Why This Matters for Your Flock This is crucial for "ewe productivity" traits
Growth rates and weaning weights. These respond well to selection but are influenced by the mother’s milk production.