Hi Sue’s Zoo –
Yes, the calcium to phosphorus ratio is still important when feeding a homemade raw diet. When feeding a “grind” such as those sold by My Pet Carnivore there’s really no way of knowing the “exact” C:P ratio although it is assumed that it’s balanced. However, as we know, the concern with large breed puppies is not only that the C:P ratio is balanced but also that it remains relatively low. My suggestion (and what I did with my pups) would be to mix in about 25% green tripe with any grind that you feed (MPC does have a great grind called “Ground Beef Tripe Supermix” which is 50% green tripe/40% muscle meat, bone, organ/10% trachea and gullet which would be a good choice). Green tripe has a balanced calcium to phosphorus ratio of 1:1 but the levels of each mineral are relatively low (only about 0.3%) this way you can “lower” the overall ratio without the risk of throwing it off balance.
It’s also perfectly fine to start young pups on RMBs (it’s easiest to start small – chicken necks, etc.) but I would recommend feeding some muscle meat at each RMB meal. RMBs do have a balanced C:P ratio but it is very high (usually close to that upper 2:1 limit) so I would say feed about half as much muscle meat as you do RMB. So, for example, if you feed 8 oz. of chicken necks also feed 4 oz. of muscle meat.
As far as ordering – you’re going to be going through A LOT of meat with two large dogs. I currently have two female bloodhounds and we go through about 150 lbs. of meat per month. When I had my large male (who unfortunately passed last summer) we were going through closer to 250 lbs. per month. My suggestion – especially if you’re on a budget – would be to try and locate a wholesaler. I get my meat delivered right to my house by a wholesaler that sells to grocery stores and restaurants. They butcher all their own meat so they do have items like chicken backs, gizzard, hearts, organ meat, etc. and will deliver to kennels that order at least 300 lbs. at a time. You will likely have to place a large order if you go this route but if you invest in some freezers it’s worth it in the long run – I pay <$1 per pound for everything I get. The only meat I order outside of my wholesaler is green tripe and I get this from Hare Today – with the shipping it’s the most expensive thing my dogs get. You can often find good deals on used freezers on craig’s list or in the free trader.
Do you know how to create a balanced diet from scratch? There are some great books out there and also some pre-mixes if you’re not sure about what you’re doing.
