Summary and Implications
Supplementation of 60 ppm Zn from Availa®Zn improved performance during the initial 86 days of the 115 d finishing period. However, during the final 29 d, when Optaflexx (OPT) was included in the diet, increasing concentrations of Availa®Zn linearly increased growth of OPT-fed steers. During this period supplementing 90 ppm of Zn had the greatest additive effect on the response to OPT, suggesting that the addition of Zn to OPT diets may improve performance.
Iowa State University
Genther, Olivia N. and Hansen, Stephanie L.
"Effects of Supplemental Availa®Zn on Growth and Carcass Characteristics of Finishing Cattle Fed Diets With or Without Optaflexx,"
Animal Industry Report:
AS 660, ASL R2849.
Available at: http://lib.dr.iastate.edu/ans_air/vol660/iss1/14