What large breed puppy foods do you use?  My boy was on Arden Grange weaning then 2 weeks ago we switched him gradually onto AG large breed puppy but it hasn't agreed.  We did 5 days of chicken and rice to sort the problem then tried introducing the puppy food again gradually but his poos are very sloppy again.  Not sure what to try next.  Any suggestions welcome.

There are so many brands of food out there to try.
What breed is he?

My rottie was on beta large breed puppy but was pretty sloppy on it and then had a dose of dire rear.  after a week on chicken and fish and rice we switched to orijen and he now generally does have fairly solid poos although not quite as solid as I would like. 

I am also feeding less than half the volume of orijen as I was of beta so it is lasting loads longer and as I ordered it from berriewoods courtesy of a tip from someone on here it is loads cheaper than from anywhere else.

we used Eukanuba Large breed light for our girls when they were older but never used the puppy version. We are using the PAH one at the moment - the light one, they do a puppy large breed which is on 3 for 2 on the 3KG bags at the moment