"Vitamin A - plays an essential role in reproduction and resistance against infections and parasite diseases. It takes part during the normal development of bones, optimal vision, integrity and development of mucous membrane (alimentary, genital, urinary respiratory and fertility), and is a requirement for health and growth Vitamin D₃ - functions in a number of ways in the calcium and phosphorous metabolism from their absorption in the intestines, maintaining the specific blood levels activating the phosphates enzymes to the deposition of the minerals in the bone tissues. No wonder it is called The Antirachitic Factor Vitamin E - protects the liver and guards metabolism against oxidative destruction. Required for normal reproduction performance in female and normal spermatogenesis in males"