Alteration of eggs biochemical composition and progeny survival by maternal high carbohydrate nutrition in a teleost fish - Archive ouverte HAL Access content directly
Journal Articles Scientific Reports Year : 2022

Alteration of eggs biochemical composition and progeny survival by maternal high carbohydrate nutrition in a teleost fish

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Therese Callet
  • Function : Author
  • PersonId : 1173859
Emilie Cardona
Nicolas Turonnet
  • Function : Author
  • PersonId : 1173860
Patrick Maunas
  • Function : Author
  • PersonId : 1173861
Laurence Larroquet
  • Function : Author
  • PersonId : 1173848
Anne Surget
  • Function : Author
  • PersonId : 1173862
Geneviève Corraze
Lucie Marandel

Abstract

Reproductive performances, and the factors affecting them, are of major importance especially for farmed fish in the context of the development of a sustainable aquaculture. Dietary maternal lipids have been identified as a major factor affecting reproductive performances. Nevertheless, the consequences of carbohydrates have been little studied while plant-derived carbohydrates could be increasingly used in broodstock diets. To explore this issue, 2-year-old female trout were fed either a control diet that contains no carbohydrate and a high protein content (65.7%) or a diet formulated with plant-derived carbohydrates containing 32.5% carbohydrate and 42.9% protein (’HC diet’) for an entire reproductive cycle. The reproductive performances, the quality of the unfertilized eggs and the development of the progeny were carefully monitored. Although the one year HC nutrition had not impaired female growth nor spawns quality, such nutrition had increased the variability of eggs size within spawns (+ 34.0%). Moreover, the eggs produced had a modified fatty acid profile, including a significant reduction in EPA content (− 22.9%) and a significant increase in the AA/EPA ratio (+ 33.3%). The progeny were impacted by such alterations as their survival rates were significantly reduced. A lower plant-derived carbohydrate inclusion (20%) should be considered in aquafeed for female broodstock in trout.
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hal-03812318 , version 1 (12-10-2022)

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Attribution - CC BY 4.0

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Therese Callet, Emilie Cardona, Nicolas Turonnet, Patrick Maunas, Laurence Larroquet, et al.. Alteration of eggs biochemical composition and progeny survival by maternal high carbohydrate nutrition in a teleost fish. Scientific Reports, 2022, 12 (1), pp.16726. ⟨10.1038/s41598-022-21185-5⟩. ⟨hal-03812318⟩
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