Growth performance, feed utilization and nutrient digestibility in rainbow trout fed with the two experimental diets with (H-Chol) or without (L-Chol) cholesterol fortification.

Data are presented as a mean ± s.e.m., n = 3, N = 6. P>0.05 = ns (not significant),* = P** = PCV% = Coefficient of variance in percentage.1See Table 1 for experimental diet abbreviations.2Feed consumption (g fish−1) = dry feed consumed per fish over the 84 day experimental period.3Weight gain (g) = (final weight) − (initial weight).4Weight gain% = (final weight−initial weight)×(initial weight)−1×100.5FCR (Food Conversion Ratio) = (dry feed fed)×(wet weight gain)−1.6SGR (Specific Growth Rate) = [Ln (final weight)−Ln (initial weight)]×(number of days)−1×100.7Feed Ration (% day1) = (dry food fed per day)×(average weight)−1×100.8DP% (Dressed−out percentage) = (gutted fish weight)×(total fish weight)−1×100.9FY% (Fillet yield percentage) = (fillet weight)×(total weight)−1×100.10HSI% (Hepatosomatic Index) = (weight of liver)×(total weight fish)−1×100.11K (g cm−3) (Condition Factor) = (total fish weight)×(total fish length)−3.12ADC = Apparent Digestibility Coefficients.