Abstract

A total of 360 weanling pigs (initially 11.5 lb and 18 ± 3 d of age, PIC) were used in a 42-d growth assay to determine the effects of water-soluble antimicrobials and organic acids in feed and/or water on nursery pig growth performance. Pigs were allotted to one of 9 experimental treatments: 1) control (no feed or water antimicrobials or acids); 2) water containing 38 mg/L neomycin sulfate; 3) water containing 0.06% Activate3 WD; 4) water containing 0.12% Activate WD; 5) feed containing Neo-Terramycin4 (140 g/ton neomycin sulfate, 140 g/ton oxytetracycline HCl; neo/oxy); 6) feed containing 0.50% Activate DA; 7) feed containing 0.45% Starter L; 8) feed containing 0.45% Multimax L; and 9) feed containing 0.50% Activate DA and 0.10% Mintrex3 P. Overall (d 0 to 42 after weaning), pigs provided neo/oxy in the feed had greater (P<0.05) ADG, compared with pigs in all other treatments, except the pigs provided the combination of Activate DA and Mintrex P in the feed. Pigs provided neo/oxy in the feed had greater ADFI (P<0.02) than did pigs provided the control treatment. There were no differences in feed efficiency between any of the treatments. These data demonstrate that pigs provided in-feed antimicrobials had improved growth, whereas those provided organic acids in feed and water did not.; Swine Day, 2006, Kansas State University, Manhattan, KS, 2006

Keywords: Kansas Agricultural Experiment Station contribution, no. 08-83-S, Swine day, 2006, Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service), 966, Nursery pig, Antimicrobials, Organic acids, Water, Growth, Swine

How to Cite:

Gottlob, R. O., Neill, C. R., Groesbeck, C. N., Schneider, J. D., Frantz, N. Z., Tokach, M. D., Goodband, R. D., DeRouchey, J. M., Nelssen, J. L. & Dritz, S. S., (2006) “Effects of water-soluble and in-feed organic acids on the growth performance of weanling pigs”, Kansas Agricultural Experiment Station Research Reports 1(10), 60-66. doi: https://doi.org/10.4148/2378-5977.6950