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Title: | Influence of genetic selection for growth and broodstock diet N-3 LC-PUFA levels on reproductive performance of gilthead seabream, sparus aurata | Authors: | Shajahan, Ferosekhan Turkmen, Serhat Pérez García, Cathaysa Xu, Hanlin Gómez, Ana Shamna, Nazeemashahul Afonso, Juan Manuel Rosenlund, Grethe Fontanillas, Ramón Gracia, Anselmo Izquierdo, Marisol Kaushik, Sadasivam |
UNESCO Clasification: | 310502 Piscicultura | Keywords: | Broodstock Fatty Acid Genetic Selection Spawning Quality Sperm Quality, et al |
Issue Date: | 2021 | Project: | Consumer driven Production: Integrating Innovative Approaches for Competitive and Sustainable Performance across the Mediterranean Aquaculture Value Chain Mejora de la Competitividad Del Sector de la Dorada A Través de la Selección Genética (Progensa-Iii) |
Journal: | Animals | Abstract: | Genetic selection in gilthead seabream (GSB), Sparus aurata, has been undertaken to improve the growth, feed efficiency, fillet quality, skeletal deformities and disease resistance, but no study is available to delineate the effect of genetic selection for growth trait on GSB reproductive performance under mass spawning condition. In this study, high growth (HG) or low growth (LG) GSB broodstock were selected to evaluate the sex steroid hormones, sperm, egg quality and reproductive performance under different feeding regime of commercial diet or experimental broodstock diet containing either fish oil (FO) or vegetable oil (VO) based diet. Under commercial diet feeding phase, broodstock selected for either high growth or low growth did not show any significant changes in the egg production per kg female whereas egg viability percentage was positively (p = 0.014) improved by the high growth trait broodstock group. The experimental diet feeding results revealed that both growth trait and dietary fatty acid composition influenced the reproductive performance of GSB broodstock. In the experimental diet feeding phase, we observed high growth trait GSB males produced a higher number of sperm cells (p < 0.001) and also showed a higher sperm motility (p = 0.048) percentage. The viable egg and larval production per spawn per kg female were significantly improved by the broodstock selected for high growth trait and fed with fish oil-based diet. This present study results signifies that gilthead seabream broodstock selected on growth trait could have positive role in improvement of sperm and egg quality to produce viable progeny. | URI: | http://hdl.handle.net/10553/78022 | ISSN: | 2076-2615 | DOI: | 10.3390/ani11020519 | Source: | Animals [EISSN 2076-2615], v. 11 (2), 519 (Febrero 2021) |
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