This year, we're doing some 'eggsperiments' with the turkey and chicken eggs... I've frozen some (I broke them and put them in some Ziplocks into the freezer) and more old-fashioned methods, like leaving them unwashed at room temp and below, some have been rubbed down with mineral oil, some not. We haven't tried keeping eggs for long periods of time like this before, so we're just playing around at this point. And I totally agree with you about becoming self sufficient and more aware about where meals come from!!
You know, I don't think turkeys have been bred enough to influence broodiness. Oh, but that reminds me! I saw an article on here forever ago about 'helping' hens go broody... ah, here it is!
Increase Chicken Broodiness by up to 48% with Aluminum Foil
I haven't tried it out yet, but it might work! Something about reflecting pheromones back to the hen when she's laying eggs. I think it would work for turkeys, too? I've also heard that the sight of a lot of eggs with encourage broodiness... for example, collect a bunch of eggs from their nesting boxes daily for a week, then one day, put them all back into the box... That might get her attention. Maybe?
Nesting box placement is also important... my hens are usually very selective, secretive and private about a nest in the beginning of a season, but towards the end (like now) they just lay them anywhere and everywhere. It's kind of odd... I keep finding them in their wading pool or under the roost... sheesh!! I think its because in the beginning of the season, their intent is to hatch babies, but if I keep collecting them and incubating them myself... then it doesn't matter? Turkeys are mysterious.
As far as where to get your stock from, I can't really tell you one way or the other. Hatcheries have a wide variety; but not always the most humane methods and their stock may not always be pure. If you're in the US, though, I bought some eggs from Val over at
Gardienne Wings and she is very awesome to work with. She also sells poults and adults, so maybe she'll help you out? My Standard Bronzes came from a guy on Craigslist, and every spring, I see ads for various poults in the Farm and Garden section. But in this sense, you have to be careful because the poults may not be vaccinated/possibly not NPIP certified. Haven't had much trouble with my Bronzes, though. Oh, and if you haven't checked out
Porter's Heritage Turkeys yet, I highly recommend it. People seem to be very pleased with his stock! I want to get some Sweetgrass turkeys from him, someday.