Feeding the hypothermic calf warm colostrum as soon as possible speeds recovery and increases the probability of full recovery. Breathing the warm air, coupled with consumption of warm colostrum, heats the calf from the inside out and provides the needed energy to overcome the trauma they just went through.
Once the calf has regained its normal body temperature and is completely dried off, it should be returned to its normal environment.
Early treatment of hypothermic calves is important. The severely hypothermic calf can be revived and saved. However, they often are set back from the experience and their immune system can be compromised. Thus, these calves should be watched more closely as further calfhood health complications may arise.
Source: Tracey Renelt