How do you unconstipate a calf?

It is best to see your veterinarian about this. An enema may need to be done on the calves, as well as a change in diet that encourages high fibre feedstuffs, readily-accessible water, and use of suppository laxatives. Enema is only used in extreme situations, otherwise a high-fibre diet and a dose of laxative may help treat constipation.