Vitamins, Antibiotics, Hormones and Enzymes
DOI:
https://doi.org/10.21423/aabppro19715129Keywords:
supplemental vitamins, nutritionAbstract
It is generally accepted that vitamins A and E are essential nutrients for all species of animals. However, differences of opinion do exist as to the conditions under which supplemental vitamins A and E are required and at what levels they should be fed.
