If I were in your position I would use buds because it’s easier to dose.
I’d also start at a low lose and work from there.
I’m 200 pounds and my dog is 20 pounds. So I’d give him 10% of what I take.
So I figure 50 mg is good for me so 5-10 mg would be a good place to start.
Assume 150 mg per gram if it it’s good flower. Smoke it to gauge low medium high potency.
I usually make a batch of 30 cookies where I’d use 8g for myself but for a dog I’d start with 1G for 30 cookies and go from there. Even a 1/2 gram maybe just to start slow.
I’d also do a peanut butter/oatmeal based cookie he would like…
If my dog were in pain I might do something similar. He’s such a happy little guy it warms my cold evil heart.
Best of luck