How to compile breeder flock results and rankings

摘要

Primary breeder companies have been very successful in developing strains of meat-type poultry which balance the requirement of excellent broiler performance with the need for good breeder flock results. They constantly test the performance of breederhen genetic lines and their progeny in trial facilities. Data gleaned from these trials become the basis of the selection pressure to obtain the desired traits in future generations. These results, done under very strict diet, housing and management growing conditions, show what can be considered the 'genetic potential' of a line or strain.