Two-way selection for muscle lipid content in pan-size Rainbow Trout
|Title||Two-way selection for muscle lipid content in pan-size rainbow trout (Oncorhynchus mykiss)|
|Written by||Edwige Quilleta, Sandrine Le Guilloua, JoJl Aubinb, Benoıt Fauconneauc|
|Published||December 19, 2004|
|Fish Species||Rainbow Trout (Oncorhynchus mykiss)|
|Key Words||Rainbow trout; Oncorhynchus mykiss; Mass selection; Fatmeter; Lipid content; Carcass traits; Body composition; Reproduction|
What the research is about
In this study, we present the results of experimental two-way mass selection for muscle lipid content in pan-sized rainbow trout. Selection was performed over two generations with the aim of evaluating the efficiency of the Fish Fat Meter values as a non-destructive predictive trait for selection. Direct and correlated responses for some major productive features (growth, body shape and composition, reproductive characteristics) were examined.
The results obtained demonstrated the efficiency of indirect mass selection for muscle lipid content using the Fish Fat Meter in pan-size Rainbow Trout. To our knowledge, this is the first report on a response to selection for a meat quality trait. The experimental lines developed will constitute valuable material to enable nutritional, genetic and functional analyses on lipids in trout.
Assurant Innovations take
The Fish Fat Meter was used to study the two-way selection for muscle lipid content performed in rainbow trout. The non-destructive approach to measure the muscle lipid content in live fish had a direct correlated responses at pan-size (around 260 g) were estimated after two generations of selection.