Final body weight decreased with increasing stocking density (Fig. 1a). Survival was
higher in the 35 and 65 kg/m3 treatments than in the 95 and 125 kg/m3 treatments (Fig.
1b), while serum cortisol on day 60 was unaffected by stocking density (Fig. 1c).
Leukocyte parameters did not significantly differ between treatments but GSH level, GSH4
Wang et al.
Px activity, and SOD activity increased as the stocking density increased (Table 1).
Lysosome activity significantly differed between the 35 and 125 kg/m3 treatments on day60