Table 6.
Effect of zinc methionine complex in combination with zilpaterol hydrochloride on USDA quality and yield grade of calf-fed Holstein steers
| Grade, % of carcasses | CONa | ZnMetb | SEMc | P value |
|---|---|---|---|---|
| Prime | 1.30 | 4.35 | 1.70 | 0.134 |
| Choice | 78.39 | 76.07 | 2.66 | 0.423 |
| Select | 19.78 | 18.75 | 2.38 | 0.682 |
| No roll | 0.52 | 0.82 | 0.32 | 0.396 |
| Yield grade 1 | 6.13 | 3.96 | 1.97 | 0.322 |
| Yield grade 2 | 57.90 | 62.40 | 2.74 | 0.161 |
| Yield grade 3 | 34.96 | 33.13 | 3.70 | 0.642 |
| Yield grade 4 | 1.20 | 1.20 | 0.48 | 1.000 |
aCON: Control 90 ppm Zn added from ZnSO4 (n = 6 pens)
bZnMet: Control plus 720 mg Zn added from ZINPRO® zinc methionine (n = 6 pens)
cPooled standard error of the mean