Erratum: Ferosekhan et al. Influence of Genetic Selection for Growth and Broodstock Diet n-3 LC-PUFA Levels on Reproductive Performance of Gilthead Seabream, Sparus Aurata. Animals 2021, 11, 519

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.

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Reproductive performance of gilthead seabream (Sparus aurata) broodstock showing different expression of fatty acyl desaturase 2 and fed two dietary fatty acid profiles

Scientific Reports ◽

10.1038/s41598-020-72166-5 ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Shajahan Ferosekhan ◽

Hanlin Xu ◽

Serhat Turkmen ◽

Ana Gómez ◽

Juan Manuel Afonso ◽

...

Keyword(s):

Fatty Acids ◽

Fatty Acid ◽

Reproductive Performance ◽

Egg Quality ◽

Sparus Aurata ◽

Fatty Acid Desaturase ◽

Fatty Acyl ◽

Reproductive Hormones ◽

Gilthead Seabream ◽

Fatty Acid Profiles

Abstract Previous studies have shown that it is possible to nutritionally program gilthead seabream offspring through fish oil (FO) replacement by vegetable oils (VO) in the broodstock diet, to improve their ability to grow fast when fed low fish meal (FM) and FO diets during grow-out phase. However, in those studies broodstock performance was reduced by the VO contained diet. Therefore, the present study aimed to determine if it is possible to replace FO by a mixture of FO and rapeseed oil (RO) with a specific fatty acid profile in broodstock diets, without altering gilthead seabream broodstock reproductive performance. Besides, the study also aimed to evaluate the reproductive performance of broodstock with different expression of fatty acid desaturase 2 gene (fads2) a key enzyme in synthesis of long chain polyunsaturated fatty acids. For that purpose, broodfish having either a high (HD) or low (LD) expression of fads2 were fed for three months during the spawning season with two diets containing different fatty acid profiles and their effects on reproductive hormones, fecundity, sperm and egg quality, egg biochemical composition and fads2 expression were studied. The results showed that blood fads2 expression in females, which tended to be higher than in males, was positively related to plasma 17β-estradiol levels. Moreover, broodstock with high blood fads2 expression showed a better reproductive performance, in terms of fecundity and sperm and egg quality, which was correlated with female fads2 expression. Our data also showed that it is feasible to reduce ARA, EPA and DHA down to 0.43, 6.6 and 8.4% total fatty acids, respectively, in broodstock diets designed to induce nutritional programming effects in the offspring without adverse effects on spawning quality. Further studies are being conducted to test the offspring with low FM and FO diets along life span.

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High broodstock fads2 expression combined with nutritional programing through broodstock diet improves the use of low fishmeal and low fish oil diets in gilthead seabream (Sparus aurata) progeny

Aquaculture ◽

10.1016/j.aquaculture.2020.736321 ◽

2020 ◽

pp. 736321

Author(s):

Hanlin Xu ◽

Shajahan Ferosekhan ◽

Serhat Turkmen ◽

Juan Manuel Afonso ◽

Maria Jesus Zamorano ◽

...

Keyword(s):

Fish Oil ◽

Sparus Aurata ◽

Gilthead Seabream ◽

Broodstock Diet

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Reproductive performance of gilthead seabream (Sparus aurata L., 1758) fed two combined levels of carotenoids from paprika oleoresin and essential fatty acids

Aquaculture Nutrition ◽

10.1111/j.1365-2095.2010.00766.x ◽

2010 ◽

Vol 17 (3) ◽

pp. 304-312 ◽

Cited By ~ 12

Author(s):

V. SCABINI ◽

H. FERNÁNDEZ-PALACIOS ◽

L. ROBAINA ◽

T. KALINOWSKI ◽

M.S. IZQUIERDO

Keyword(s):

Fatty Acids ◽

Reproductive Performance ◽

Sparus Aurata ◽

Essential Fatty Acids ◽

Gilthead Seabream ◽

Paprika Oleoresin

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Genetic selection for lifetime reproductive performance

Bioscientifica Proceedings ◽

10.1530/biosciprocs.18.0033 ◽

2020 ◽

Author(s):

A.C. Clutter

Keyword(s):

Reproductive Performance ◽

Genetic Selection ◽

Selection For

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Family based selection for production traits in gilthead seabream (Sparus aurata) and European sea bass (Dicentrarchus labrax) in Greece

Aquaculture ◽

10.1016/j.aquaculture.2007.07.193 ◽

2007 ◽

Vol 272 ◽

pp. S314 ◽

Cited By ~ 9

Author(s):

I. Thorland ◽

N. Papaioannou ◽

L. Kottaras ◽

T. Refstie ◽

S. Papasolomontos ◽

...

Keyword(s):

Sparus Aurata ◽

Dicentrarchus Labrax ◽

Sea Bass ◽

Gilthead Seabream ◽

Production Traits ◽

European Sea Bass ◽

Selection For ◽

Family Based

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Genetic selection to produce lines of sheep differing in plasma copper concentrations

Animal Science ◽

10.1017/s0003356100040150 ◽

1985 ◽

Vol 40 (3) ◽

pp. 465-473 ◽

Cited By ~ 4

Author(s):

G. Wiener ◽

J. A. Woolliams ◽

Carol Woolliams ◽

A. C. Field

Keyword(s):

Body Weight ◽

Genetic Variation ◽

Reproductive Performance ◽

Genetic Selection ◽

Selection Line ◽

Low Concentrations ◽

Plasma Copper ◽

Selection For ◽

The Difference ◽

High Selection

ABSTRACTMale lambs were selected annually at 18 and 24 weeks of age for high or low concentrations of copper in plasma to produce two closed lines. The difference between the high and low lines increased to approx. 0·5 mg/1 after 5 years when the experiment ended, indicating appreciable additive genetic variation for the concentration of Cu in plasma. The selection lines were derived from a population of Scottish Blackface × Welsh Mountain crosses which had been interbred for many generations. The two parental breeds contributing to the cross normally differ in a number of aspects of Cu status with that of the Welsh higher than that of the Blackface. Both pure breeds were kept as controls. In the final year, Cu concentrations of the high selection line exceeded the values of the Welsh and the low selection line had values below those of the Blackface. Differences between the selection lines persisted at all ages.There were indications of changes in the frequency of the Hb alleles, associated with the selection for Cu concentrations, but there were no correlated changes in body weight, reproductive performance or lamb mortality during the 5-year selection period when dietary supplies of Cu were not particularly restrictive.

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