Review Article
How Muscle Structure and Composition Influence Meat and Flesh Quality
Table 1
Biological characteristics of muscle fiber types
1 [
6].
| ā | I | IIA | IIX | IIB |
| Contraction speed | + | +++ | ++++ | +++++ | Myofibrillar ATPase | + | +++ | ++++ | +++++ | Contraction threshold | + | +++ | ++++ | +++++ | Contraction time per day | +++++ | ++++ | +++ | + | Fatigue resistance | +++++ | ++++ | ++ | + | Oxidative metabolism | +++++ | ++++ | ++ | + | Glycolytic metabolism | + | ++++ | ++++ | +++++ | Phosphocreatine | + | +++++ | +++++ | +++++ | Glycogen | + | +++++ | ++++ | +++++ | Triglycerides | +++++ | +++ | + | + | Phospholipids | +++++ | ++++ | +++ | + | Vascularization | +++++ | +++ | +, ++ | + | Myoglobin | +++++ | ++++ | ++ | + | Buffering capacity | + | +++ | +++++ | +++++ | Z line width | +++++ | +++ | +++ | + | Diameter | ++ | +, ++ | ++++ | +++++ |
|
|
ā: very low; ++: low; +++: medium; ++++: high; +++++: very high.
|