I feed the same as Sam&MacksMom. It is important to note that heart, is considered muscle meat rather than an organ. Here is a great link to some basic information:
RAW FEEDING 101
I purchase from a variety of places;
MY PET CARNIVORE, My local grocery stores, ethnic stores are particularly good, and a local game processor. For instance I was at the grocery store today and they had split chicken breasts for $.89/lb, in 3-4# packages. I stocked up.
I pretty much purchase whatever cuts are available. I do buy a lot of beef, lamb and pork heart, as it is fairly inexpensive. I also buy beef tripe, beef chunks, mutton, lamb, ostrich, lama, rabbit, fish, muskrat, goat, venison, elk and pretty much anything else I can get my hands on. You will find many, if not most of these on the MPC website.
I don't feed much ground as a rule, although I do purchase it and keep it on hand. MPC grinds and mixes it in proper meat/bone/organ ratios. I send this along with Wheeler's handler when he is out at the dog shows. This is much easier on the handler....AND since she is one of the few handlers actually willing to lug a cooler and feed raw when on the road, I am happy to make it as easy for her as possible.
When I first started researching raw, I joined the
Raw Feeding Yahoo Group. For me it was very helpful, I never asked a single question, but every question I had was answered.... because inevitably somebody else asked it.
On the MPC site there is also a
Raw Feeding Links page, with some excellent information.
The biggest mistake I made was too much, too soon. When I want back to square one and started with a single protein source (in my case Chicken) for 3 weeks - with NO organ, and then gradually added in very small portions of organ and other types of meat, everything came together and went very well. Now, my boy can pretty much eat anything with no appreciable change in stool. The only thing that will loosen him up is too much organ.
It was a bit daunting at first, but once I got a clue, paid attention to what people told me, and stopped over thinking it -- it has been wonderful. I will never feed commercial kibble again.
Good Luck!