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Journal of Nutrition Vol. 113 No. 10 October 1983, pp. 2124-2128
Copyright © 1983 by American Society for Nutrition
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Dietary Pantothenic Acid Requirement of Fingerling Channel Catfish1

Robert P. Wilson, Paul R. Bowser* and William E. Poe

Department of Biochemistry * College of Veterinary Medicine, Mississippi State University, Mississippi State, MS 39762

Two experiments were conducted to reevaluate the dietary pantothenic acid requirement for fingerling channel catfish. Purified diets supplemented with calcium d-pantothenate were used in both experiments. The results indicate that the previously reported requirement value was underestimated. The minimum dietary calcium d-pantothenate level that produced maximum growth, feed efficiency and prevented the characteristic deficiency sign of gill lesions was 15 mg/kg of diet. The gill lesions were detected in 2 weeks in fish fed deficient diets. A reduction in the gill lesions was evident within 2 weeks after fish fed the deficient diet were converted to a diet containing 40 mg calcium d-pantothenate per kilogram of diet. In one experiment there appeared to be a high correlation between disease susceptibility and dietary calcium d-pantothenate level. Based on these observations and since the requirement may vary depending on fish size, age, water temperature, water ionic strength, fish density, oxygen availability, etc., we recommend a value of 30 mg calcium d-pantothenate per kilogram of diet be used in formulating catfish feeds.

KEY WORDS: • channel catfish • calcium d-pantothenate • pantothenic acid requirement • pantothenic acid deficiency

1 Mississippi Agriculture and Forestry Experiment Station Publication Number 5473.

Manuscript received 18 April 1983.




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