J. Khajarern, S. Khajarern-1997
Aquaculture, 151: 219-224
Abstract:
A stable form of vitamin C, ascorbate-glucose, was tested for
stability, bioavailability, safety and efficacy in Clarias hybrid catfish.
Six test diets containing 0 and l00 mg L-ascorbic acid (ASA) and 40,
60, 80 and l00 mg ascorbate vitamin C-glucose (AAG) per kg of diet
were fed to fingerling catfish. Weight gain, feed conversion and
survival of fish on the diet with no added ascorbic acid was
significantly lower (P < 0.05) than that of fish fed with vitamin C.
This study indicated that 31-42 mg of ascorbic acid activity or 60-80
mg of AAG per kg of diet was required for rapid growth and 42 mg of
ascorbic acid activity or 80 mg of AAG per kg of diet was required
for good health, better feed conversion and survival and prevention of
deficiency signs.
Ascorbate-glucose appeared to be comparable to ASA on a
molar-equivalency basis and was found to be very stable during
processing, storage and leaching studies.
(Department of Animal Science, Faculty of Agriculture, Khon Kaen
University, Khon Kaen 40002, Thailand)
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