Use of vitamin D compounds

摘要

Use of 25-hydroxy vitamin D3 in combination with vitamin D3 in the manufacture of a food or veterinary composition for the improvement of bone strength in pigs is disclosed. A food premix for pigs comprising from about 2 mg/kg to about 20 mg/kg of 25-hydroxy vitamin D3 and from about 40,000 IU/kg to about 800,000 IU/kg of vitamin D3 is also disclosed.