Nutritional management of robotically milked dairy herds has presented the dairy nutrition world with a new challenge. For the last several decades, nutritionists have concentrated on feeding total mixed rations (TMR) and managing cows in groups primarily based on parity, nutritional requirements, and reproductive status. With the adoption of automatic milking systems (AMS), cows are now generally allotted to a group for the entire lactation. Parity may still be considered in some herds. Balancing nutrient intake from the partial mixed ration (PMR) and the pellet or concentrates fed in the AMS becomes an added challenge for the nutritional professional. In some cases, the AMS can dispense multiple feeds to individual cows. This can further complicate the equation, but also provided greater targeted nutrition for individual animals. This can create opportunities to feed certain groups of cows (early lactation) differently from other cows housed and managed within the same group. It could also provide a method of different feeding programs for cows differing in parity yet housed within the same group. An additional complicating factor is differences in designed cow traffic of the facility, free-flow or guided-flow. Goals for cow traffic (daily visits) may be associated with feed intake in the milking center and thus change the nutritional goals of the PMR. With all the choices and various feed settings available with AMS, often other items like forage quality, foot health, training and cow comfort are often forgotten. These factors have a major effect on cow movement and can alter the use of the AMS, negatively affecting the amount of feed obtained from the robot, forcing the animal to depend more on the PMR. This is especially critical to the proper nutrition of early lactation cows. Balancing the ration for the robotically milked herd is very similar to conventional milked cattle from a nutritional aspect. However, understanding and predicting how nutrient intake is altered by split feeding between the PMR and the robot feed or feeds is the challenge. Balancing nutrition becomes more complicated because with AMS, cow behavior (visits to the milking machine) become an important part of the nutrition equation.