The sort of hybrid pullets you can buy at POL are raised in huge numbers by businesses who either get them as day-old chicks or as hatching eggs for incubation and subsequent rearing. I believe a lot of them come from Europe, but I dont know where. Most of them must spend all their lives in large flocks, being sold on to commercial egg or meat producing farms. But somewhere, there must be equally huge breeding farms, with cockerels and hens all producing hatching eggs to sell on to producers of chicks. Does anyone know anything about these? How are they managed? I would imagine you couldn't just put a lot of cockerels in with hundreds of hens and hope for the best, but penning them separately would seem to be a hugely labour- intensive operation when you consider the hundreds of thousands of fertile eggs which are needed each year, just to keep the markets for chickens going. Why do we never seem to hear about any of these outfits, and what are they like? Anybody know anything about them?