Daisy:age 6, JRT, fed on Burns adult chicken and rice: No bahviour problems apart from typical terrier barking.
Sweepie: age 2, working cocker spaniel, fed on Burns adult high energy Lamb, no behaviour problems apaprt from being over attached to me.
Goose: age 2, labrador retriever, fed on Burns adult high energy lamb, no behaviour problems apart from can breenge in with hackles up to greet a new dog, either male or female. Would never attack and after 2 mins of greeting he is all luvvy with waggy tail.
Otter: age 7 months, labrador retriever, fed on Eukanuba puppy/junior large breed, no behaviour problems in the slightest a happy well balanced socialised dog without a care in the world.
Belle: age 5 labrador retriever, fed on burns adult chicken and rice, Belle had severe behaviour issues when I got her. She was being fed when I got her a cheap Gold Line chicken based dog food (£7 a bag stuff). She had several sessions with a behaviourist 4 years ago, we worked to her plan on the way forward with Belle and on top of the list was to change her food which I did straight away. Belle has taken nearly 3 years to overcome to majority of her fears and although she will never be 100% she is certainly a totally different dog to when I 1st got her.
Edited to add: mine all get over and above their kibble, Barf, burns moist food, tripe, pedigree chum better by nature moist, applaws moist food, and numerious other meats and veg