New puppy, poo problems, etc.
We picked up an 8 1/2 week old puppy in LA a week ago. While he looked a little thin to me at the breeder's location, I watched his behavior and movement and considering there were 2 litters on the ground, I figured he was ok. I've raised up pups that started out a little thin and they turned out to be bigguns! Saw the parents and they looked great. The area was clean, the puppy was clean, vaccination and worming records, etc. The breeder had been feeding him Eukanuba (yuk). We bought some on the way home just so we could use that to slowly transition him to better food.
Murphy slept almost all the way home to the Vegas area on my lap. The breeder gave him his second puppy shots before we left, so I expected there might be some tummy upset and was prepared for that. What I wasn't prepared for was the yellow liquid poo 2 days later. Freaked me out! Took him to the vet on Sunday. They wanted to keep him overnight and put him on IV fluids and anti-biotics, run blood and stool. The vet said there was a little protein in his blood, but wanted to hold off for about a week on testing for EPI.
Brought him home 24 hours later (Monday evening). Energy level was doubled. He's on Flagyl 100 mg chewable twice a day and chicken and rice diet. The vet advised 4 to 5 small meals a day. I'm giving him about 1/2 to 2/3 cup rice/chicken 4 times a day. He gladly eats it all and looks for more. He's into everything, chewing, alert, playful, watch-dogging as only a 9 1/2 week old can do, chases and wrestles with the 20 lb cat... in short, he's the typical puppy handful! His ears even went up (albeit, probably temporarily).
Monday evening his stools were soft and light brown. Tuesday afternoon, very soft and lighter brown. Wednesday morning, liquid and more yellow than brown (I'm starting to worry again). Then nothing until that night when they became more like pudding and light brown. He's drinking, eating (and looking for more and other things), happy, totally bonded, alert, etc. I'm convinced, as is my adult daughter, that he's gaining weight. He's sleeping at least 7 hours at night without the need to potty.
I've seen a lot of folks have had their pups on Flagyl for the poo issue. I guess what I'd like to know is how long after treatment started did you begin to see results in young puppies? Should I be concerned/obsessed about EPI at this point? If Murphy had the typical transition/vaccination loose stool I wouldn't have been as worried, but the yellow-liquid poo in such a young puppy really scared me. Any other suggestions? The vet recommended waiting 3 days after normal stools before introducing kibble again. I'm seriously considering ditching the Eukanuba altogether since he'll have been without dry food for a number of days, and slowly giving him California Natural Lamb and Rice Puppy.
Any words of wisdom would be greatly appreciated!