Here we are in an excellent Robot barn with CowSignals master trainer Stephen Kelly, Ireland. Notable is that there is no rest feed here.
As Stephen mentions: here we also see that the cows are not looking for the feed, so they're not hungry. Normally, we advice 3-5% leftovers.
Practical guide to optimal feeding management and production. This training supports the advisor, the farmer and his staff in doing an excellent job every day, in storing, mixing and feeding a ration that keeps cows healthy and productive.