My furkids are all on ProPac and nothing else. They get fed once a day around 6pm. The borders get 1.5 cups whilst the shelties get just 1/3 a cup . We watch their weight carefully and increase or decrease the kibble as needed. Occasional treats are chicken necks or wings,
They are all high energy agility dogs and this diet works well for them.
When one had a cruciate issue she blew out to a few kilos overweight which we fixed by dropping her biscuits by a third and adding cooked pumpkin as a bulker. It took a couple of weeks to get her back in trim.
Border River Pet Resort