Sydney Acres
Songster
Quote:
I think it depends on the hen (feather quality, flat wide back vs sloping back, etc) and the rooster (good balance, slips off easily which pulls feathers, sharp nails, gentle vs aggressive, etc) and how frequently they breed. It seems there are always some hens that have thinned feathers, and some that rarely do. And some roosters always shred the back plumage on the hens, while others rarely do. Years ago an experienced breeder was looking at my flock of really poorly-feathered hen backs and said, "You need to breed that out of them! Your management is good enough that you shouldn't have so much treading damage. In the meantime, protect your hens. That looks painful." I felt horrible, but it was good advise, and my flock is better for it now.
The disadvantage of the 3X3X3 tractor is that the hen can't get away from the rooster at any time, so if the rooster breeds frequently the single hen will likely have pulled feathers, or worse. Ideally the hen should have a tall perch to jump to, or some other way to get away from the rooster when she's had enough. If that's not available, then I would consider a good quality apron essential.
Since hens don't need to breed every day to keep the eggs fertilized, the roosters don't need to live with the hens. If they are put together for a few hours twice weekly you'd likely still have the same fertility as having them housed together. If they're housed in adjoining tractors or pens most of the time they should still breed well, since they won't be strangers each time they are put together.
If you only breed a few good quality hens, but also have some hens around that lay a different color egg, then you can keep each quality hen in a separate pen, housed together with your other-breed hens for company. That way you always know which eggs came from the quality hen (because it's a different color), she has company if the rooster isn't constantly with her, and if the rooster is kept in the pen she's not the only hen, so she isn't overbred. (Obviously, each pen has to be big enough to hold the increased number of birds comfortably, and the other breed should not bully the quality hen.) It may not work for everyone, but I've found it a great solution that allows me to keep multigenerational records on my birds, improve my flock quality significantly, but still incorporate the normal social structure of the flock and prevent overbreeding and cage stress in my breeding pens. It's very humane, and the eggs from the "other breed" are sold as fertile eggs for eating, which people love and pay extra for. It's a win:win situation for all concerned.