Either visit the farm, or do sleuthing to find out. You might ask them to send you some pictures. ET Chickens sanitize the pasture behind the cows by debugging. Cows graze, harvesting their own forage, rather than us mechanically harvesting it for them. Pigs turn compost.
Rabbits mow under the orchard.
Those are some examples of animals doing the things that we normally do with machines or human power. Our farm is 450 acres of forest and 100 acres of open, or arable land. So it supports four full-time salaries. There is no indication regarding this. They probably don't have hormones in them, because pretty much all organic farmers agree on not using hormones.