Hey there, I'm intimately familiar with the poultry industry in all aspects. What you're referencing is for egg-utilizing companies, like unilever, who need eggs in their products (ice creams, etc.). Unilever is requiring their egg producers to adopt new technologies to detect male chicks in the eggs and prevent them from hatching, leading to only the female chicks growing into hens, which lay the desired eggs.

The chicken-producing industry (very different from the egg producing industry) does use males. They're differentiated for some products (Perdue's Oven Stuffer Roasters, for example), but 95% of all producers in the country now run "Straight-run" operations, meaning they dont differentiate between male and female birds (no sexing the chicks and separating them). Originally this was a problem, conforming your machines to process two different sized birds (a double-bell-curve, so to speak), but streamlining the selective breeding over the years has brought the females and males together as far as feed conversions and weight gains go.

Always happy to shed light on the poultry industry and it's many quirks :)