Shrimp moult roughly every 21 d, so show a discontinuous growth pattern (Mishra, Verdegem and van Dam, 2002; Franco, Ferreira and Nobre, 2006). The duration of the moult cycle is temperature dependent (Emmerson, 1980b). Commercial growout to 20 g takes between 120 and 150 d at 28 oC (Figure 15).
