An oil composition containing 25-hydroxy Vitamin D.sub.3 and an oil is provided. In addition an emulsion, a microencapsulated oil composition, and a feed premix composition each containing 25-hydroxy Vitamin D.sub.3 are provided. Methods of making an oil composition, a microencapsulated oil composition, and a feed premix containing 25-hydroxy Vitamin D.sub.3 are also provided.