jessies_mom
Posted : 8/5/2012 6:14:41 PM
According to this website; The Bioavailability of Different Forms of Vitamin C
" 1,000 mg of calcium
ascorbate generally provides 890-910 mg of ascorbic acid and 90-110 mg
of calcium. Calcium in this form appears to be reasonably well absorbed."
So I guess you could use it in your calculations. You should know that dogs do not have a requirement for vitamin C. Breeders use Ester-C to calm their bitch down. Vitamin C is passed in the urine and when you use a form like ester-C that is combined with calcium, it can cause calcium oxalate crystals.
The answers I've been giving you are from Monica's books, and my knowledge of balancing a home made diet is limited. There's more to adding calcium than the rule I gave you of 250 mg to every 3 1/2 ounces of cooked meat, but it can work for awhile. You will eventually need to learn how to provide the correct calcium-phosphorus ratio. There is an interaction among minerals; too much of one can interfere with the absorption of another. Too much calcium interferes with the absorption of zinc, iron, and copper. Also, a common mistake for home made diets is not enough potassium, so make sure to include some food with it. It's hard to provide enough B vitamins; most vegetables don't have enough and unless you're feeding a lot of beef, their diet is probably deficient in B's. B vitamins are water soluble so it's hard to give a dog too much. You could get a B 50 supplement and give each dog 1/4 of it daily. If you joined the k9 Kitchen group I linked before, they could help you more than I can.