Changes

==Introduction==

==Introduction==

Muscle mass accounts for a large majority of the carcass weight of domestic animals.  Muscular contraction is necessary for voluntary and involuntary movement of limbs, stabilization of joints, maintaining luminal diameter (in the case of arteries, bowel, etc), and to produce heat.  The number of muscle fibers an individual possesses is determined by genetics and is set at birth, although muscle size and type (i.e. glycolytic to oxidative and vice versa) can be altered.  Further muscle development therefore occurs by hypertrophy, rather than hyperplasia of muscle fibers.  Three types of muscle can be described:

Muscle mass accounts for a large majority of the carcass weight of domestic animals.  Muscular contraction is necessary for voluntary and involuntary movement of limbs, stabilization of joints, maintaining luminal diameter (in the case of arteries, bowel, etc), and to produce heat.  The number of muscle fibers an individual possesses is determined by genetics and is set at birth, although muscle size and type (i.e. glycolytic to oxidative and vice versa) can be altered.  Further muscle development therefore occurs by hypertrophy, rather than hyperplasia of muscle fibers.  Three types of muscle can be described:

*Skeletal (Striated, Somatic, Voluntary)

*Skeletal (also referred to as Striated, Somatic, Voluntary)

*Smooth (Visceral)

*Smooth (also referred to as Visceral)

*Cardiac

*Cardiac