I just had a long chat with our local independent pet shop owner and he explained a few things that I had got confused about. Thanks for the enlightenment upthread regarding "chicken meal".
The pet shop owner sells a range of products including Purina Beta, Burn's and JWB, and his advice was to go with a hyper-allergenic food and specifically he pointed me towards Burn's. He opened my eyes to how many brands are actually owned by Purina - Bakers included.
I was all ready to get on board with Arden Grange as their ingredients seem to be just about the best and most clearly listed, but their food is only available from one supplier withing 30 miles. Getting it delivered from AG themselves is all well and good as long as I don't run out during a postal strike. Plus, being in the back of nowhere some couriers don't even deliver to Aberdeen or charge a surplus because we are in the Highlands. We're not and we are the hub for the country's most important industry. Hey ho.
So, it looks like it'll be Burn's for Posie over the coming weeks.
It's worth remembering that the article that has really brought this issue to the forefront was talking about the longer term damage of the poor quality feeds. Nothing was really said about short term problems other than some skin of digestive upsets which can easilly be remidied. So I would suggest we don't all get paranoid and make quick switches. I'll be finishing off the two bags of Beta Puppy and switching over once we're near the bottom of the bag.
Incidentally, we tried Posie on a little fresh cooked chicken to supplement her kibble last night, and as expected she devoured the chicken first then went back for the dry food.
However, the smell later on through the night...