Genetic Analysis of the Fatty Acid Profile in Gilthead Seabream (Sparus aurata L.).
Authors
Vallecillos, A. (Antonio); Marín, M. (María); Bortoletti, M. (Martina); López, J. (Javier); Afonso, J.M. (Juan Manuel); Ramis, G. (Guillermo); Arizcun-Arizcun, M. (Marta); Maria-Dolores, E. (Emilio); Armero, E. (Eva)Date
2021-10-03Type
articleKeywords
fatty acid profileheritability
gilthead seabream
body weight
moisture
fat
collagen
protein
Abstract
The gilthead seabream is one of the most valuable species in the Mediterranean basin
both for fisheries and aquaculture. Marine fish, such as gilthead seabream, are a source of n3
polyunsaturated fatty acids, highly appreciated for human food owing to their benefits on the
cardiovascular and immune systems. The aim of the present study was to estimate heritability for
fatty acid (FA) profile in fillet gilthead seabream to be considered as a strategy of a selective breeding
program. Total of 399 fish, from a broodstock Mediterranean Sea, were analysed for growth, flesh
composition and FA profile. Heritabilities for growth traits, and flesh composition (fat, protein,
and moisture content) were medium. Heritability was moderate for 14:0, 16:0 and 18:1n9 and for
sum of monounsaturated FA and n6/n3 ratio, and it was low for 20:1n11 and 22:6n3 and the ratio
unsaturated/saturated FA. Breeding programs in gilthead seabream usually include growth as the
first criterion in the selection ...
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