How skinny is he at this point? You said he's lost weight--is he looking almost emaciated, or just getting thinner?
When you do switch foods, do it slowly, especially if he's showing any signs of a delicate IG tract. Take a week or two to make the switch--a little more of the new food each day, a little less of the old.
Mornings seem to be the meal he's least interested in? Sometimes dogs who go a long time between the evening meal and morning have a little bit of an upset tummy in the morning. Could that be a factor? I doubt if that is the main problem, but if he's not eating much anyway, it's possible that an upset tummy makes him even more disinclined to eat.
Another additive you could try is an extra 1/2 sardine or so with each meal (water packed, no salt)--perhaps an extra smelly thing might tempt him. e.e You can even pour the water they are packed in over his food if he seems to like the flavor.
He had only lost 4 lbs when I took him to the doc, when the eating actually stopped it was a sudden enough change for me to decide to take him to the vet. Honestly no real signs of a delicate GI tract in the past he would eat just about anything you gave him.
Thanks for some reason their site wasn't working last week but seems to be working now. I'm going to reach out and see if they have and recommendations on a vet that sees alot of dobies.
Brad - I will add one more thing , I really hate to bring this subject even up - But did your Vet do a really good job of examining him ? Like in feeling his gut area for things that are not suppose to be there ? Like a tumor ? Or a ultrasound of his tummy - intestinal area ? Our Ali girl did a lot of what your boy is doing , Slowly quit eating , took her to the Vet , Her regular Vet was off that day , but we felt she needed to be seen - That Vet did a good exam of her and took x-rays of lungs and some of her gut area , Said she did not see anything wrong , but for us to come back in in 4 days to see Doctor H . and we did ,Doc was checking her gut area , and then we made eye contact - I could read his eye's and it was not good , then I asked him what he found , he had me knell down and placed my hand on a small mass , he then looked at the x-rays and told me she needed a ultrasound - tomorrow . I made the call to the VCA and they could not work me in - So I made it for a emergency room call and pay the extra to get her in the next morning - Ended up she had cancer and it was very aggressive kind .
The reason I tell you this story is - I will always wonder what if ! What if we found it sooner than latter - she showed no signs , till she quit eating .
So sorry for the doom and gloom , but felt that , anything I or we can do to help out a Doberman , then that's the way it is .
Best of luck
It is something that has certainly crossed my mind, in fact it was one of the first things that crossed my mind, with his age it's a definite possibility. If it doesn't seem to be a food issue I'm going to be looking for a second opinion.
Did the vet do a complete blood count on your dog? That's how I found out about the high liver counts on my 2nd dobie. Had to put her on script dog food but she got her appetite back almost immediately. Tried all kinds of dog food with her and she would just sniff and walk away. But she ate the script right away. Good luck on your quest.
My understanding is that this was part of the full panel because when he called out what he looked at, liver was one of them and nothing looked out of line.
I'm now 3 meals from Sunday morning's dose of Entyce and he wanted to eat this morning fingers crossed his evening meal will go just as well.