Previous research at this station (A.S. Series 74-27) had found "Zinpro-40," a zinc proteinate, to be ineffective in improving performance of growing-finishing pigs. It has been suggested that a response to the compound might be obtained with younger pigs in a stress condition after weaning.
The objective of this study was to determine the effect of "Zinpro-40" in diets of pigs mixed from two sources as well as housed in open-front houses during October and November.
Number of Pages
Agricultural Experiment Station, South Dakota State University
Libal, George W. and Wahlstrom, Richard C., "Zinpro-40' Additions to Pig Starter Diets" (1980). South Dakota Swine Field Day Proceedings and Research Reports, 1980. 6.