Hi texasniteowl –
Completely understandable that you can’t do raw, it’s not possible for the majority but I thought I’d put it out there is case it was a potential option. I raw feed my crew of three large, extremely active bloodhounds and it gets very time consuming and expensive.
As for toppers – yes, all you would need to do is account for the calories. Generally speaking, the average 13.2 oz. can of dog food as roughly the same amount of calories as an 8 oz. measuring cup of dry kibble.
For fish oil you will want to go by combined EPA/DHA amounts. 100 – 150 mg. mg combined DHA and EPA per 10 lbs. is the general recommendation and what I’d suggest starting with, although I’ve seen sources recommend up to 300 mg. combined DHA/EPA per 10 lbs. for dogs with health issues. The product you’re looking at has a combined EPA/DHA of 610 per serving so that would be just about perfect for your 62 lb. dog.
Human probiotics are perfectly fine for dogs. In fact, I feel that they’re generally higher quality and (oddly) they typically cost less per dose. You certainly can go with a probiotic supplement marketed for dogs, but it’s not necessary. Just look for one with as many strains as possible. If you go with a human supplement, adjust the serving size accordingly. I’d give a 62 lb. dog 1/2 the recommended human dose (although there’s no need to stress about dosages too much as probiotics aren’t something that will harm your dog if you were to accidentally “overdose”).
