Effect of Divergent Genetic Selection for Growth on Spawning Quality in Gilthead Seabream (<i>Sparus aurata</i>).

ABSTRACT: Gilthead seabream (Sparus aurata) is a prominent aquaculture species in Europe; however, the repercussions of growth-oriented selective breeding on reproductive performance under industrial conditions have not been adequately characterised. The present study evaluated the influence of divergent Best Liner Unbiased Prediction (BLUP)-based selection for low growth (LG) (n = 49; mean weigh ± SD = 842 ± 189 g) and high growth (HG) (n = 50; mean weight ± SD = 1127 ± 407 g) on spawning quality throughout the commercial mass-spawning season. A number of significant differences were detected between the genetic lines. The LG broodstock produced substantially higher oocyte yields and numbers of fertilised eggs (26% and 25% increases, respectively), indicating greater quantitati

SUBMITTER: Perez-Garcia C 

PROVIDER: S-EPMC12729285 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature