Half of the eggs were collected from young breeders (35 wk old), and the other half from older breeders (45 wk old). These comprised 4 replicates each of freshly laid eggs and 4 replicates of eggs already stored
(70% RH and room temperature of 15°C) for 7 d from each age of broiler breeder to provide
statistical replication during egg incubation. Prior to incubation, samples of 30 eggs per age per storage time were used to measure albumen quality