Sometimes after severe coccidia, or other gut infections there is enough injury to the lining of the intestines that nutrients are unable to be absorbed. The result is that, even though the original infection is cured, the calf has become unable to utilize the nutrients being fed. Because these nutrients are passing through the gut they carry water with them and the result is called a malabsorptive diarrhea. Calves with malabsorptive diarrhea do not perform well and they may never realize their growth potential.
You are waiting for the gut to regain its normal function. At this point you should try to provide any nutrient rich feeds that the calf is willing to consume; for example, a high quality alfalfa hay and a good calf starter. Avoid using antibiotics or other medications that might prevent the growth of the microorganism necessary for digestion.
