J. Anim Sci.
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J. Anim Sci. 1989. 67:624-627.
© 1989 American Society of Animal Science
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Effect of Vitamin C and Space Allowance on Performance of Weanling Pigs1,2,

NCR-89 Committee on Confinement Management of Swine3,4,

Iowa Agriculture and Home Economics Experiment Station, Ames 50011

Abstract

The influence of space allowance and vitamin C supplementation on rate and efficiency of weight gain and mortality of weanling pigs was investigated in a cooperative study that involved 11 experiment stations in the North Central Region (NCR-89). The factorially arranged treatments were .124 vs .248 m2 of floor space/pig and 0 vs 625 ppm vitamin C added to a corn-soybean meal-dried whey diet. The 1,296 pigs (36 replications) averaged 27 d of age and 6.9 kg at the start of the 28-d feeding trial. Crowded pigs (.124 m2/pig) consumed 11.2% less (P < .01) feed and grew 11.0% slower (P < .01) than those allowed twice as much space (.248 m2/pig). Crowding did not affect (P > .05) gain/feed ratio. Neither vitamin C supplementation nor the interaction between space allowance and vitamin C influenced (P > .05) performance or mortality. None of the treatments influenced (P > .05) body weight variation between pigs within pens. There were station effects (P < .01) for all criteria, except mortality, but there were no station x treatment interactions (P > .05). In the environments represented at 11 experiment stations, dietary vitamin C was not necessary for optimum performance of weanling pigs.

Footnotes

1 Journal Paper No. J-13,003 of the Iowa Agric. and Home Econ. Exp. Sta., Ames. Project No. 2356. Series No. 10535.

2 This study was supported in part by grant-in-aid from Roche Chemical Division, Hoffmann-La Roche Inc., Nutley, NJ.

3 The Committee during the study included R. Arthur, SIU; M. C. Brumm, NE; R. Christenson, US-MARC; J. Crenshaw, ND; S. E. Curtis, IL; R. H. Hines, KS; G. W. Jesse, MO; H. W. Jones, IN; V. Leibbrandt, WI; G. W. Libal, SD; D. Mahan, OH; R. L. Moser, MN; A. Thulin, MI; R. F. Wilson, OH; D. R. Zimmerman, IA. Administrative advisors were B. R. Baumgardt, IN, and M. Hogberg, MI.

4 Manuscript prepared by D. R. Zimmerman.






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Copyright © 1989 by the American Society of Animal Science.