This is not Lab related, but is dog related. I have a 16 mo Great Pyrenees that is now only eating sporadically. He originally presented with some listless behavior and loss of appetite. This happened the weekend of 6/14-6/15.
I took him in to the vet on the 17th at which time he weighed 109 lbs. His gums were pink, physical exam was normal and he was still active and did not seem to be in distress.
Over the next week, he would only eat about every other day. Still I was not too concerned as he seemed bright and active. However, when I took him in on the 24th for follow up, his weight was 94 lbs. He had lost 15 lbs. in a week. At this point, I was very concerned. We did blood work and everything is WNL. Heartworm was/is negative. I went home with instructions to change his food, as he might have food sesitivities.
As an interesting aside - when the Vet was explaining the food sensitivity problem to me, he commented that it was similar to a gluten sensitivity in humans. He then went on to try to tell me what that meant. What he did not know is that I was diagnosed with Celiac Disease in 1983 and have been on a Gluten Free diet since then. One could say I am familiar with food sensitivities.
We got some ZD food for Louie and went home again. He is still not eating consistently. I don't know what he weighs now (He's to heavy for me to lift) but he's starting to look skinny -though it's hard to tell under all that hair. At his time, we have tried 7 different brands of foods, rice, yogurt, pumpkin, chicken and ground beef. None of these seem to entice his appetite.
Yesterday, my vet recommended we go down to the Veterinary Referral Center of Colorado for an ultrasound and more blood work. We did so. The ultrasound was clear, confirming there is no obstruction. We did a test for Addison's and I will get the results on Monday. I am getting pretty scared. This is a very young dog and the apple of my eye.
Any thoughts, suggestions and tips you might have would be very welcome.