2026-06-14T03:33:53Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/183172024-11-28T14:57:35Zcom_20.500.12105_15322com_20.500.12105_2051col_20.500.12105_16927

00925njm 22002777a 4500 dc Guerrero-Cozar, Israel author Jimenez-Fernandez, Eduardo author Berbel, Concha author Espinosa, Elena author Claros, Manuel Gonzalo author Zerolo, Ricardo author Manchado, Manuel author 2021-04-22 Shape quality is very important in flatfish aquaculture due to the impact on commercialization. The Senegalese sole (Solea senegalensis) is a valuable flatfish with a highly elliptic body that slightly changes with age and size, and it is prone to accumulating malformations during the production cycle. The present study aims to investigate the genetic parameters of two growth traits (weight and standard length) and six shape quality predictors (ellipticity, three body heights (body height at the pectoral fin base [BHP], body maximum height [BMH] and caudal peduncle height [CPH]) and two ratios (BMH/BHP and BMH/CPH)). These traits were measured before the on-growing stage (age ~400 days (d)) and at harvest (~800 d). Phenotypic data, heritabilities and genetic and phenotypic correlations between the traits are presented and discussed. High or very high heritabilities (0.433-0.774) were found for growth traits, body heights and ellipticity and they were higher at 400 than 800 d. In contrast, the ratios of BMH/BHP and BMH/CPH were less heritable (0.144-0.306). Positive and very high (>0.95) correlations between growth traits and the three heights were found and decreased with age. In contrast, ellipticity had negative and medium-high genetic correlations with growth traits and heights, indicating fish selected for bigger size would also become rounder. The ratio of BMH/CPH showed low genetic correlations with all traits and provided complementary information to ellipticity for a better fitting to the expected lanceolate body morphology of sole. The genetic correlations for all traits at both ages were very high, indicating that selection before entering the growth-out stage in recirculation aquaculture systems is recommended to accelerate genetic gains. 10.3390/ani11051206 2076-2615 Animals http://hdl.handle.net/10668/4582 33922218 http://hdl.handle.net/20.500.12105/18317 Senegalese sole Genetic estimates Shape Growth Breeding Productos pesqueros Variación genética Forma de la célula Crecimiento Cruzamiento Animales Peces planos Acuicultura Genetic Estimates for Growth and Shape-Related Traits in the Flatfish Senegalese Sole