Table 5.
Correlations of MyHC composition with metabolism enzyme activities in porcine LM during postnatal growth
| MyHC protein composition | MyHC mRNA composition | |||||||
|---|---|---|---|---|---|---|---|---|
|
|
|
|||||||
| MyHC I | MyHC IIa | MyHC IIb | MyHC IIx | MyHC I | MyHC IIa | MyHC IIb | MyHC IIx | |
| CK activity | 0.224 | −0.247 | −0.234 | −0.250 | 0.500* | −0.128 | 0.041 | 0.105 |
| LDH activity | −0.468* | 0.291 | 0.256 | 0.292 | 0.063 | −0.231 | 0.284 | −0.039 |
| SDH activity | 0.643** | −0.459* | −0.454* | −0.455* | 0.769** | −0.143 | −0.126 | −0.185 |
| MDH activity | 0.725** | −0.474* | −0.467* | −0.470* | 0.682** | −0.084 | −0.186 | −0.203 |
MyHC, myosin heavy-chain; LM, longissimus muscle; CK, creatine kinase; LDH, lactate dehydrogenase; SDH, succinate dehydrogenase; MDH, malate dehydrogenase.
*
Means significant difference (p<0.05);
**
means very significant difference (p<0.01).