Table 1. Descriptive data for 100 commercially farmed rainbow trout.

	N fish	Length (cm)	Weight (g)	Condition factor	Speilberg score	% unvaccinated
Fresh water, February 2009	50	19.5±1.5	83.4±19.6	1.12±0.10	–	20
Salt water, May 2010	50	38.7±3.8	763.1±204.7	1.29±0.12	1.25±0.54	20

Condition factor: CF = (W/L³)×100; where W = weight (g) and L = total length (cm) [18].

Speilberg score is a measure of vaccine-induced side effects.