
Hi SillySue, not really sure what you are asking.
With regard to feeding raw: they most certainly will get their full nutrition without a shadow of a doubt! Raw contains all the protein, fat, vitamins and minerals that a dog needs.
The blocks defrost really quickly if left in a cool place or overnight in the fridge.
I was only assuming that if you are using it for a topper for 8 dogs for one meal, then if they were sharing a block, it is only giving them 50 grams or so each which is not a lot.
If you were feeding totally raw - say a 20 kg dog, the dog would require around 400/500 grams per day - so a full block for each dog. As I don't know the weight of your dogs, I couldn't advice how much it would cost.
I use my local farm shop and buy minced chicken wings/carcasses at 50 p a pound. This feeds both my dogs for one day - £3.50 per week. I supplement with other things from suppermarket - cheap liver, kidney's, etc. My local butcher gives away chicken carcasses rather than pay to have them disposed of.
Not sure how much kibble you use a month, or the brand or how much it costs, but I bet that you could feed all the dogs for less than £100. If this is too much cost, someone mentioned Autarky. I used this years ago before I switched to raw. I found in comparison to other dried foods that it was excellent so it may be worth a try.
If you really need to top the food in order to make it palatable, have you though of just getting cheap or free bones and making a pan of bone broth to pour over the food?
Good luck any way.