regulation of myofibril number
Any process that modulates the number of myofibrils. A myofibril is the contractile element of skeletal and cardiac muscle. It is a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism.
GO:0014738
regulation of muscle hyperplasia
is_a
GO:0065008
regulation of biological quality
is_a
change of myofibril number
exact