Table 3. Skeletal muscle satellite cell densities in the longissimus muscle of beef cattle from different stocker management programs at the conclusion of the stocker and finishing phases
Variable | Stocker management program | SEM | p-value |
CON | CORN | LGWP | HGWP |
Intermediate harvest | | | | | | |
Myf-5+ cells/mm2 | 80.95 | 88.90 | 85.50 | 81.85 | 6.32 | 0.8020 |
Pax7+ cells/mm2 | 21.95ab | 17.40b | 25.35a | 20.15ab | 1.97 | 0.0429 |
Myf-5+:Pax7+ cells/mm2 | 6.95a | 1.75b | 5.90a | 5.60a | 1.22 | 0.0203 |
Final harvest | | | | | | |
Myf-5+ cells/mm2 | 90.20 | 87.50 | 86.25 | 88.60 | 7.33 | 0.9841 |
Pax7+ cells/mm2 | 17.65 | 21.35 | 21.70 | 20.35 | 3.17 | 0.7997 |
Myf-5+:Pax7+ cells/mm2 | 5.15 | 4.50 | 5.20 | 4.90 | 1.34 | 0.9820 |
Least square means within a row lacking a common superscript differ (p ≤ 0.05).
SEM, standard error of the LS mean.
CON, 40% crude protein cottonseed meal-based supplement on dormant native range; CORN, corn and soybean meal-based supplement on dormant native range; LGWP, re-duced rate of gain on wheat pasture; HGWP: high rate of gain on wheat pasture.