All nutrients in the feed consumed by a calf end up being divided between maintenance and growth. Changes in ration (for example, weaning) and changing in housing (moving from individual to group pens, for example) may change the total amount of nutrients available. 

I set up a data base for calves from 35 to 82 days of age. Using field experience with weaning calves and moving from individual to group pens I set rates of milk, calf starter grain, grower grain and hay on a daily basis. 

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