Table 5.
The effects of short-term (6 day) BA or GH treatment of lambs at 60 or 120 days of age on metabolic and signalling enzyme activities in the Longissimus dorsi
| D60 | D120 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Trait | CO | BA | GH | s.e.d. | P-value | CO | BA | GH | s.e.d. | P-value |
| n | 10 to 11 | 7 to 9 | 10 | 10 to 11 | 9 to 10 | 10 | ||||
| ICDH activity (mOD/min per mg tissue) | 49.3 | 33.9 a | 49.4 | 4.9 | 0.004 | 37.3 | 28.2 a | 33.1 | 3.4 | 0.041 |
| LDH activity (mOD/min per mg tissue) | 510 | 489 | 519 | 86 | 0.928 | 637 | 618 | 652 | 114 | 0.957 |
| CaMKII (pmol/min per µg protein) | 11.5 | 14.3 | 10.9 | 2.1 | 0.246 | 13.8 | 14.9 | 11.5 | 1.8 | 0.160 |
| CaN (×10−3) arbitrary units | 49.5 | 43.0 | 44.4 | 15.5 | 0.901 | 34.1 | 27.1 | 22.5 | 11.1 | 0.562 |
BA=β agonist; GH=growth hormone; CO=control; ICDH=isocitrate dehydrogenase; LDH=lactate dehydrogenase; CaMKII=calmodulin kinase II; CaN=calcineurin.
a
Significantly different to control (Dunnett’s test; P<0.05).