Young animals require highly digestible fats and oils, with a correct fatty acid profile and saturation structure to provide a profile similar to milk fat.
Correct mixing of the milk replacer and temperature of the water used will provide a more uniform blend and low fat particle size (less than 1.5 microns).
These factors encourage optimum absorption capacity by the young calf.
Lastly, feeding more of an appropriately balanced milk replacer diet to meet requirements for energy and protein-allowable gain appears to be the most systematic solution to cold-stress challenges. Feeding more starter will not help the young calf maintain a steady rate of gain during cold weather conditions.
So, whether you use a single feeding strategy or a combination, make sure to provide plenty of fresh water and get in the spirit of the season: "Oh, the weather outside is frightful, but my calves are warm and fed full. And since my calves have no better place to go, let it snow, let it snow, let it snow!"
Source: J.W. Schroeder, Dairy Specialist, NDSU Extension Service