
well often I say i it aint broke it don't need fixing BUT I am going to make an exception here. IMO almost anything will be an improvement for your dogs long term health and welbeing. Chudleys is ok but not special, if your looking for a food in that sort of price range you could also look at look at CSJ range.
If you can streatch the budget a wee bit more perhaps foods foods from one of the many suppliers of Golden Acres hypoallergenic platinum range (google salmon & potato or duck & potato and you will find lots of "brands" that are the same basic product bagged for various small suppliers - Nutrix, vet recommended diets, hights farm etc ) Best prices I have found to date on these foods are here eg.
http://www.workinghprs.com/catalog/1 # these products are similar to the more pricey Fish for Dogs and Challenge but if you buy two bags the salmon and potato is 24.99 for 15kg delivery & VAT included.
K