Nitrogen balance and myofibrillar protein turnover in double muscled belgian blue bulls in relation to compensatory growth after different periods of restricted feeding

peer reviewed ; Nitrogen balance and myofibrillar protein breakdown were studied in 16 double-muscled Belgian Blue bulls during a low growth period (0.5 kg d-1) (LGP) of 4 mo (L4), 8 mo (L8), or 14 mo (L14) and the subsequent fattening period (rapid growth period, RGP). The control group (CG) was given a conventional fattening diet; the others received a low-energy, low-protein diet during LGP, and the same diet as the CG during RGP. Measurements were made halfway through the LGP, 1 mo after the beginning of the fattening period, and 1 mo before slaughter. Nitrogen balance was about half of CG... Mehr ...