Millions of male chicks die in egg productions. Short after birth they get sorted out and if they're male, they get shredded. It's literally a death on the assembly line. Following a picture where you can see how
In Switzerland the parliament decided in September 2019 to ban the practise of shredding living male chicks, even though this practise is no longer used. Instead, the baby birds must be put to death with CO2 gas. About three million male baby chickens are gassed in Switzerland every year because it is not worth rearing them for commercial reasons. More than 50% of the culled chicks are processed for animal feed used notably by zoos. Article About Chick Shredding in Switzerland