The interactive effects of zinc source and feed grade medication on weanling pig growth performance (1999)

Authors

J C. Woodworth
J T. Sawyer
K A. Maxwell
T M. Fakler
Michael D. Tokach
Jim L. Nelssen
Robert D. Goodband

Keywords

Swine day, 1999; Kansas Agricultural Experiment Station contribution; no. 00-103-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 841; Swine; Early-weaned pigs; Growth; Zinc; Medication

Abstract

Two hundred eight-eight weanling pigs (initially 12.31bs and 18 d of age) were used in a 27-d growth assay to determine the interactive effects of Zn source and feed grade medication on growth performance. Experimental treatments were arranged in a 2 x 3 factorial with main effects of medication (none or 50 g/ton of carbadox) and Zn source (none, 250 ppm of Zn from a Zn amino acid complex, or 3,000 ppm of Zn from ZnO). The results suggest that dietary Zn improved growth performance primarily from d °to 14 and feed grade medication improved growth performance from d 14 to 27. Pigs fed diets containing ZnO had better growth performance than pigs fed diets containing no additional Zn, and pigs fed diets containing ZnAA had intermediate responses.; Swine Day, Manhattan, KS, November 18, 1999

Recommended Citation

Woodworth, J C.; Sawyer, J T.; Maxwell, K A.; Fakler, T M.; Tokach, Michael D.; Nelssen, Jim L.; and Goodband, Robert D. (1999) "The interactive effects of zinc source and feed grade medication on weanling pig growth performance (1999)," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 10. https://doi.org/10.4148/2378-5977.6654