Table 11.
Expression of LM genes in calves born from beef cows that received diets containing supplemental INR (n = 95) or AAC (n = 95) during gestation1,2
| Item | INR | AAC | SEM | P-value |
|---|---|---|---|---|
| FABP4 | ||||
| Birth | 155.7 | 108.0 | 31.4 | 0.29 |
| Weaning | 45.9 | 38.4 | 9.0 | 0.56 |
| Myogenin | ||||
| Birth | 5.05 | 4.54 | 0.58 | 0.53 |
| Weaning | 4.20 | 4.42 | 0.51 | 0.77 |
| PAX7 | ||||
| Birth | 3.42 | 3.42 | 0.25 | 0.99 |
| Weaning | 3.23 | 3.22 | 0.16 | 0.98 |
| PPAR-γ | ||||
| Birth | 4.28 | 4.24 | 0.76 | 0.97 |
| Weaning | 2.14 | 2.03 | 0.21 | 0.71 |
1INR and AAC cows received the same amount of supplemental Co, Cu, Mn, and Zn from sulfate sources or Availa 4 (Zinpro Corporation, Eden Prairie, MN). Cows were assigned to the experiment at 117 ± 2 d of gestation (day 0).
2Muscle samples were collected via needle biopsy (Schubach et al., 2019) at birth and at weaning (day 367). Values are expressed as relative fold change compared within CT of reference genes analyzed within the same sample (Ocón-Grove et al., 2008). Samples were collected from 30 cows of each treatment randomly selected on each sampling day.