Vitamins
Important ones seem to be fat soluble A,D,E and K – and vitamin C.
Vitamin deficiencies from missing vitamins are comparatively rare in the last two decades. This is because vitamin premixes exist in the processing of fish food that have eliminated most of the mystery and a lot of the onerous expense. Vitamins A,D,E and K when deficient result in lesions of the skin, eyes, and nervous system. Vitamin K contributes to blood clotting. How much this bears on fish is vague at best.
Vitamin C is not so mysterious. Addition of Vitamin C to the diet of Koi and Goldfish is a “Good Thing” for several reasons. First, it’s essential to the fish and contributes majorly to disease resistance. Second, food processing degrades Vitamin C so that enough of this has to be added to the food to where a surplus survives the processing of the food. Inattention on the part of the feed manufacturer to this could result in food too low in Vitamin C. Finally, if available over 180 milligrams per kilogram, some research supports that the immune system is not only supported, but dramatically enhanced.
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Dr Erik Johnson
Dr Erik Johnson is a Marietta, Georgia Veterinarian with a practice in small animal medicine. He graduated from University of Georgia with his Doctorate in 1991. Dr Johnson is the author of several texts on Koi and Pond Fish Health and Disease as well as numerous articles on dog and cat health topics.
