Table 3

Indices of rainbow trout fins in each treatment group

FinIndex (mean ± standard error)
Fishmeal dietGrain-based diet
High densityLow densityHigh densityLow density
Pectoral (left)a,b0.104 ± 0.0020.108 ± 0.0010.114 ± 0.0010.117 ± 0.002
Pectoral (right)a,b0.106 ± 0.0010.107 ± 0.0010.115 ± 0.0010.118 ± 0.002
Dorsala,b0.088 ± 0.0030.088 ± 0.0050.091 ± 0.0030.095 ± 0.004
Pelvic (left)a,b0.088 ± 0.0010.088 ± 0.0010.090 ± 0.0030.096 ± 0.003
Pelvic (right)a,b0.097 ± 0.0010.097 ± 0.0010.102 ± 0.0010.104 ± 0.001
Ventrala0.097 ± 0.0010.099 ± 0.0020.102 ± 0.0010.104 0± 0. 02
Caudal (upper)a0.105 ± 0.0010.109 ± 0.0020.109 ± 0.0010.113 ± 0.001
Caudal (lower)a0.103 ± 0.0020.105 ± 0.0010.109 ± 0.0010.112 ± 0.002
  • a Fin showed statistically significant differences between diet treatment groups (P < 0.05); no statistical differences were determined between the density treatment groups.

  • b Fin showed statistically significant interaction (P < 0.05) between diet and density treatments.