sorry for the late reply guys, the dogs are pretty much of a similar size and age, like i said he other 2 are fed the same exercise the same (tho the dof does slightly more in lamping season) and look healthy, the whippet from above looks massively over weight or heavy on the collie chart, i dont know if this has anything to do with her being a pedigree in relation to being spayed as the other cross is fine, they all feed together but maybe its an idea feeding the whippet seperate, is 300 grams enough or too much for a dog out of season, cheers guys