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Effect of dietary soybean lecithin on reproductive performance of Chinese mitten crab Eriocheir sinensis (H. Milne-Edwards) broodstockPeer reviewed article
Sui, L.Y.; Wu, X.G.; Wille, M.; Cheng, Y.X.; Sorgeloos, P. (2009). Effect of dietary soybean lecithin on reproductive performance of Chinese mitten crab Eriocheir sinensis (H. Milne-Edwards) broodstock. Aquacult. Int. 17(1): 45-56. dx.doi.org/10.1007/s10499-008-9178-6
In: Aquaculture International. Springer: London. ISSN 0967-6120

Beschikbaar in Auteurs 
  • Vlaams Instituut voor de Zee: Reprints 143441 [ aanvragen ]
  • Vlaams Instituut voor de Zee: Open Repository 211189 [ download pdf ]

Trefwoorden
    Brood stocks; Crustacean culture; Eieren; Fecundity; Kuit schieten, Paaien; Kweken; Lecithin; Maturation; Phospholipids; Reproductive behaviour; Eriocheir sinensis H. Milne Edwards, 1853 [WoRMS]; Marien
Author keywords
    Eriocheir sinensis broodstock; Phospholipids; Soybean lecithin; Maturation; Fecundity; Egg quality

Auteurs  Top 
  • Sui, L.Y.
  • Wu, X.G.
  • Wille, M.
  • Cheng, Y.X.
  • Sorgeloos, P.

Abstract
    The effect of increasing levels of dietary phospholipids (PL) on the ovarian development and reproductive performance of Chinese mitten crab Eriocheir sinensis were investigated using four semipurified formulated diets supplemented with 0%, 1.2%, 2.4%, and 3.6% PL. Four groups of 40 females, with an average individual body weight of 95-120 g, were fed the experimental diets for a period of 7 months. Male crabs were introduced into the female rearing system in March, and mating, spawning, and egg hatching occurred in the following month. After 10 weeks of feeding, females fed the diet with 2.4% PL had a significantly higher gonadosomatic index (GSI) than females fed the diet with 0% PL, whereas females fed the diet with 1.2% PL had a significantly higher hepatic moisture content and lower hepatic lipid content than the other groups (P < 0.05). After mating, the spawning rate was higher among females fed diets with 3.6% and 2.4% PL (95% and 92%, respectively) compared with females fed diets with 0% and 1.2% PL (both 81%). The results showed that egg production (total number of eggs/female) and fecundity increased with increasing dietary PL level, with females fed diets with 0% and 1.2% PL supplementation having significantly lower values than females fed the diet with 3.6% PL (P < 0.05). In conclusion, our results suggest that dietary PL supplementation has a positive effect on ovarian development and reproductive performance of E. sinensis broodstock. Further study should aim to investigate the optimal PL level in the broodstock diet of E. sinensis in respect to offspring quality.

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