Table 4.
Expression of mRNA (relative fold change) of longissimus muscle (LM) genes at birth, incidence and treatments against bovine respiratory disease (BRD) in the feedlot, and carcass traits of calves born from cows that received diets supplemented with Ca soaps of soybean oil (CSSO; n = 52) or prilled saturated fat (CON+; n = 52) during the last trimester of gestation. Values reported are least square means ± standard error. Adapted from Brandão et al. [42].
| Item | CON+ | CSSO | p-Value |
|---|---|---|---|
| LM muscle at birth, mRNA expression | |||
| Adipocyte fatty acid-binding protein | 35.0 ± 14.1 | 73.9 ± 14.6 | 0.03 |
| Myogenic differentiation 1 | 13.3 ± 3.0 | 22.6 ± 3.1 | 0.02 |
| Myogenin | 7.03 ± 1.0 | 9.77 ± 1.1 | 0.04 |
| Peroxisome proliferator-activated receptor-γ | 3.16 ± 0.54 | 4.55 ± 0.58 | 0.07 |
| Stearoyl-CoA desaturase | 3.43 ± 0.32 | 4.54 ± 0.36 | 0.05 |
| Treated for BRD in the feedlot, % | |||
| Once | 40.5 ± 6.7 | 28.4 ± 6.7 | 0.16 |
| Twice | 19.2 ± 4.71 | 5.64 ± 4.68 | 0.03 |
| Number of antimicrobial treatments required | 1.49 ± 0.10 | 1.18 ± 0.11 | 0.05 |
| Carcass traits upon slaughter | |||
| LM, cm2 | 79.6 ± 1.0 | 82.4 ± 1.1 | 0.03 |
| Yield grade | 3.76 ± 0.07 | 3.68 ± 0.07 | 0.43 |
| Marbling | 526 ± 15 | 510 ± 15 | 0.47 |
| Backfat, cm | 2.46 ± 0.14 | 2.40 ± 0.14 | 0.76 |