How is rooster production controlled?

Rooster production it basically hit and miss. There is no way to control what you get from the hatch. It has been suggested that higher incubation temperatures increase Rooster production however it also reduces hatch totals. Male /female ratiOS of a hatch are usually 50%. Roosters hatched in single purpose layer hatcheries were often culled right away. As there is little or no difference in the meat value of cockerels verses pullet the roosters are now raised to meat size and used for broilers.