Derivation of economic values for production traits in aquaculture species

Table 7 Economic values of traits for gilthead seabream

Trait	Baseline trait level (trait unit)	Genetic change (trait unit)	Economic value [€ (kg production)⁻¹ (trait unit)⁻¹]
\(TGC\) ^a	12.6	+0.95	0.40
\(TFC\) ^b	8.25	−0.55	−0.45
\(M\) ^c	0.0300	−0.016	−7.7
\(\sigma_{HW}\) ^d	60	−4.2	−0.0011
\(\sigma_{HW}\)	60	−8.5	−0.0010

^aThermal growth coefficient [\({\text{g}}^{2/3}\) /(day degrees · 1000)]
^bThermal feed intake coefficient [\({\text{g}}^{0.544}\) /(day degrees · 1000)]
^cMortality rate (%/day)
^dStandard deviation of harvest weight (g)

ISSN: 1297-9686