Effect of micro-algae Schizochytrium sp.supplementation in plant diet on reproduction of female rainbow trout(Oncorhynchus mykiss):maternal programming impact of progeny

作     者：Emilie Cardona Emilien Segret Yoann Cachelou Thibaut Vanderesse Laurence Larroquet Alexandre Hermann Anne Surget Geneviève Corraze Frederic Cachelou Julien Bobe Sandrine Skiba-Cassy Emilie Cardona;Emilien Segret;Yoann Cachelou;Thibaut Vanderesse;Laurence Larroquet;Alexandre Hermann;Anne Surget;Geneviève Corraze;Frederic Cachelou;Julien Bobe;Sandrine Skiba-Cassy

作者机构：INRAEUniv.Pau&Pays AdourE2S UPPANuMéAF-64310Saint Pée-sur-NivelleFrance INRAEUR1037 Fish Physiology and Genomic laboratoryF-35000 RennesFrance Viviers de SarranceF-64490SarranceFrance Viviers de RébénacqF-64260RébénacqFrance. 

出 版 物：《Journal of Animal Science and Biotechnology》 (畜牧与生物技术杂志（英文版）)

年 卷 期：2022年第13卷第4期

页      面：1175-1192页

核心收录：

学科分类：090801[农学-水产养殖] 0908[农学-水产] 0905[农学-畜牧学] 09[农学] 

基　　金：funded by FEAMP(NutriEgg N°PFEA470016FA1000002). 

主　　题：Egg quality Micro-algae Nutritional programming Plant diet Rainbow trout Reproduction 

摘      要：Background:The broodstock diet,and in particular the lipid and fatty acid composition of the diet,is known to play a key role in reproductive efficiency and survival of the progeny in fish.A major problem when replacing both fish meal and fish oil by plant sources is the lack of n-3 long chain polyunsaturated fatty acids,such as eicosapentaenoic acid(EPA)and docosahexaenoic acid(DHA).To address this problem,we studied the effect of the plant-based diet supplemented with Schizochytrium sp.microalgae,source of DHA,compared to a conventional commercial diet rich in fish meal and fish oil on reproductive performance and egg quality and the consequences on progeny,in female rainbow trout broodstock.Results:The results demonstrated that DHA-rich microalgae supplementation in a plant-based diet allowed for the maintenance of reproductive performance and egg quality comparable to a conventional commercial feed rich in fish meal and fish oil and led to an increased significant fry survival after resorption.Moreover,when females were fed a plant-based diet supplemented with micro-algae,the 4-month-old progenies showed a significant higher growth when they were challenged with a similar diet as broodstock during 1 month.We provide evidence for metabolic programming in which the maternal dietary induced significant protracted effects on lipid metabolism of progeny.Conclusions:The present study demonstrates that supplementation of a plant-based diet with DHA-rich microalgae can be an effective alternative to fish meal and fish oil in rainbow trout broodstock aquafeed.