Effect of weaning initiation time and feed pellet size on peled
            <i>Coregonus peled</i>
            (Gmelin 1789) larviculture

Matoušek, Jan; Gebauer, Tatyana; Stejskal, Vlastimil

doi:10.1111/are.14533

Cited by 2 publications

(2 citation statements)

References 34 publications

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“…Our higher survival rate (91.8%) could imply an effect of the commercial feed used. Survival rate in the present study was also considerably higher than reported for C. peled (Stejskal et al, 2017, Matousek et al, 2020), as a related species.…”

Section: Discussioncontrasting

confidence: 63%

Effect of feeding strategy on survival, growth, intestine development, and liver status of maraena whitefish Coregonus maraena larvae

Stejskal

Gebauer

Sebesta

et al. 2021

J World Aquaculture Soc

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Optimizing larval rearing protocols is critical to successful intensive fish culture. We compared the efficacy of feeding strategies for larvae of maraena whitefish Coregonus maraena, a promising candidate for intensive aquaculture. Survival, growth indicators, intestine development, and liver status were compared in larvae fed live feed, commercial dried feed, and weaned from live to dried feed at 5, 10, 15, 20, or 25 days post hatching (dph). Seven experimental groups in three repetitions used 5,250 larvae (2 dph, initial body weight = 7.4 ± 0.1 mg; initial total length = 13.0 ± 0.1 mm). This 30‐day trial showed initial weaning from live feed (Artemia sp.) to artificial diet after 15 days to be the optimal, with beneficial effects on growth, body weight, and larva yield. No differences in survival rate, size heterogeneity, and or condition factor were observed among groups. Live feed and weaning to artificial diet at the appropriate time was beneficial to intestine development, while feeding on artificial feed only was associated with severe intestine impairment. Liver pathology was not seen in any group.

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Section: Discussioncontrasting

confidence: 63%

Effect of feeding strategy on survival, growth, intestine development, and liver status of maraena whitefish Coregonus maraena larvae

Stejskal

Gebauer

Sebesta

et al. 2021

J World Aquaculture Soc

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“…Synthetic analogues of gonadotropin-re-Peled Coregonus peled is native to Russia and has been introduced into areas including Belarus, Germany, Finland, Latvia, Estonia, and Czechia (Gordeeva et al 2008). It has been successfully adapted to intensive aquaculture (Savini et al 2010;Stejskal et al 2018;Matousek et al 2020). Peled matures at two years, with spawning typically occurring in winter.…”

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confidence: 99%

Efficacy of poly (lactic-co-glycolic acid) microparticles as a gonadotropin-releasing hormone analogue delivery system to stimulate ovulation of peled Coregonus peled

Knowles¹,

Vysloužil²,

Muselík³

et al. 2021

CZECH J ANIM SCI

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The aim of the study was to determine the efficacy of poly (lactic-co-glycolic acid) microparticles as a carrier of gonadotropin-releasing hormone analogues (GnRHa) for induction of ovulation in peled Coregonus peled. Female peled were injected intraperitoneally with 1) saline solution only (control), 2) mammalian GnRHa at 25 µg/kg body weight, 3) GnRHa in 753-type microparticles at 50 µg/kg, or 4) GnRHa in 653-type microparticles at 50 µg/kg. Blood plasma samples were taken on days 0, 4, 8, and 12 post-injection. All hormone treatments induced synchronous ovulation and higher cumulative ovulation compared to controls. Hormone treatments did not affect relative fecundity or the percentage of eyed eggs. Testosterone level decreased toward the onset of ovulation. On day eight of the trial, the testosterone level was significantly lower in hormone-treated groups compared to the control group. The level of 17β-oestradiol showed a decreasing trend post-injection, with the lowest observed level on day eight. Our results demonstrate that ovulation can be induced in the peled by the sustained – release of GnRHa in poly (lactic-co-glycolic acid) microparticles, but the treatment does not improve reproductive performance.

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Effect of weaning initiation time and feed pellet size on peled Coregonus peled (Gmelin 1789) larviculture

Cited by 2 publications

References 34 publications

Effect of feeding strategy on survival, growth, intestine development, and liver status of maraena whitefish Coregonus maraena larvae

Effect of feeding strategy on survival, growth, intestine development, and liver status of maraena whitefish Coregonus maraena larvae

Efficacy of poly (lactic-co-glycolic acid) microparticles as a gonadotropin-releasing hormone analogue delivery system to stimulate ovulation of peled Coregonus peled

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