Prepare breeder flocks for top performance

In the early 90s Cobb started collecting information on breeder flocks worldwide and a clear cut pattern for improvement in performance has been observed since then. Genetic selection has certainly been a great contributor to this progress. However, a better understanding of nutritional and management needs has also played a part. By analysing the survey results for a given year, a significant difference in performance between flocks ranked in the top 25% versus the average flock is observed (T