J. Anim Sci.
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Journal of Animal Science, Vol 71, Issue 12 3383-3388, Copyright © 1993 by American Society of Animal Science

JOURNAL ARTICLE

Effect of niacin additions to corn-soybean meal diets on performance of pigs from weaning to finishing

D. J. Ivers and T. L. Veum
Department of Animal Sciences, University of Missouri, Columbia 65211.

An experiment was conducted to study the effect of adding crystalline niacin to low-protein diets on pig performance from weaning to market weight. Niacin was added at 0, 3, 9, 27, or 81 ppm to a low-protein test (LPT) diet fortified with crystalline amino acids and at 0 or 81 ppm to a positive control (PC) diet. Pens (four pigs/pen) were the experimental units with 12 and 8 pens per treatment during the 35-d nursery and 98-d growing-finishing phases, respectively. Niacin supplementation did not affect (P > .10) ADFI, ADG, gain:feed ratio, hair and skin condition, or the incidence of toe cracks and lameness during the nursery or the growing-finishing phases. There were no linear, quadratic, or cubic responses (P > .20) with increasing concentrations of added niacin in the LPT diets for the production criteria measured. Also, there were no interactions (P > .20) between niacin (0 or 81 ppm) and protein level (LPT or PC diets) for any of the criteria studied. Pigs fed the PC diets had greater (P < .05) ADFI, ADG, and gain:feed ratios over the entire experiment than pigs fed the LPT diets that contained 0 or 81 ppm of added niacin. In conclusion, the addition of niacin to low-protein or positive control corn-soybean meal diets did not improve pig performance criteria from weaning to market weight.


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D. E. Real, J. L. Nelssen, J. A. Unruh, M. D. Tokach, R. D. Goodband, S. S. Dritz, J. M. DeRouchey, and E. Alonso
Effects of increasing dietary niacin on growth performance and meat quality in finishing pigs reared in two different environments
J Anim Sci, December 1, 2002; 80(12): 3203 - 3210.
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Copyright © 1993 by the American Society of Animal Science.