Thirty double-muscled Belgian Blue bulls were maintained at a rate of gain of .5 kg/d during four periods of time, 115 (G2), 239 (G3), or 411 (G4) d (low growth period, LGP), before fattening (rapid growth period, RGP). Ten control animals (CG) were fed a diet rich in energy and protein. The G2, G3, and G4 were fed a diet low in energy and protein and the same diet as CG during RGP. Live weight...

After pneumonectomy, the remaining lung increases in size. This process is referred to as compensatory lung growth. Various pathways likely play important roles in this growth response. The molecular mechanisms involved in compensatory lung growth, however, remain poorly understood. Hypoxia-induced mitogenic factor (HIMF), also called FIZZ1 or RELM-alpha, possesses mitogenic, vasoconstrictive, ...

Although laboratory and observational studies suggest that many animals are capable of compensatory growth after periods of food shortage, few field experiments have demonstrated structural growth compensation in the wild. Here, we addressed the hypotheses that (i) food restriction can induce structural compensatory growth in free-living animals, (ii) that compensation is proportional to the le...