WPC: 60 years of genetic selection in poultry
Modern poultry genetic selection programs require multiple pure lines for cross breeding [Edited version of conference presented during the 2026 World’s Poultry Congress, Toronto, Canada] For layers, the drastic increase in egg production was achieved by advancing the age at first egg, increasing peak production and significantly extending laying cycles. Of course, adjustments in management and nutrition also followed. However, egg output is ultimately linked to resource availability and utilization, especially calcium for egg-shell formation. On the male side, it is well documented that intensive genetic selection for growth resulted in behavioral issues for broiler breeder roosters with ineffective mating, while more recently the focus has shifted to semen quality. To ensure the future of the poultry industry, more emphasis should be put in incorporating physiological parameters in…
