Re: lots of beef in my freezer.....QUESTIONS!!!!!
You are probably right that the purple color is just a lot of blood, that would be nothing to worry about. Just make sure whatever you give is not covered in any sort of marinade or anything. The ribs are gonna be too large for a cat (better for a dog), the maximum sized bones for cat are like chicken drumsticks, some cats even have trouble with those.
Your cat is a kitten right? If so he'll probably take to the meat quickly Cut it into small pieces (small enough that he can chew and swallow the whole piece) because he might not know how to gnaw chewable piece off of a large chunk.
Some cats are sensitive to beef, so if he eats it and regurgitates a little bit later don't be alarmed just clean it up. Whether or not you try again is up to you. Some cats just will not tolerate beef.
Right now I assume you are just seeing if he will eat the meat. If you do decide to go raw you will have to introduce other meats, then bones (chicken bones, quail bones, cornish hen bones, some rabbit bones) and organs, liver is required and so is one other organ (I use kidney because that is what I can find). Heart does not count as an organ in raw feeding.
basically you'd feed meat everyday except on the days you feed bone meals. Feed bone meals two or three times a week. Feed a nickel sized piece of liver with one meat meal each week, feed one nickel sized piece of kidney (or whatever other organ you use) once a week with a meat meal. Feed fish body oil too, I do one capsule a day.
but for now concentrate on seeing if he'll even eat the meat, once you get past that you can work on the other aspects of the diet. Of course you'll need to continue feeding his regular commercial diet too until he is eating meat, bones and organs so that you will know he's getting all the nutrients he needs.