Chicken farmer grows Ross 708’s ,508’s ,or 308’s depending on what the hatchery is sending him (the numbers are a particular strain of the breed).
They grow to 3.2-3.6/kg (7-8 lbs) which apparently sells to McDonalds and to Costco here. No growth hormones, just good feed, lots of light and good water. He counts 5% loss per 40k to be acceptable.
He did recently put in a chlorination system for his water. Even though it’s well water and plentiful enough that the previous farmer fed 600 head, the chlorine helps the gut biome so that they grow faster and get sick less. It’s helped to keep his average loss to <5%.
