• Introduction to Digestion
  • The Digestive Process
  • Digestive fluids and enzymes
    • he time comes to feed the fish. As a result the raw material is assumed to contain no vitamins and sufficient amounts of synthetic vitamins are added during the manufacturing process.

    Vitamins fall into two categories - water-soluble and fat-soluble. The former includes Vitamin C and various B vitamins (B1, B2, B6, B12) and the latter Vitamins A, D, E, and K. All these vitamins and several others are added to feeds in small amounts (e.g. 10-500 ug per kg dry weight of food).

    Note: the fat-soluble vitamins can accumulate in fish and cause vitamin poisioning of hypervitaminosis. A lack of vitamins in the diet can lead to growth and health problems.

    or other anti-bacterial