Feeding and Nutrition of Percid Fishes During Ongrowing Stages

Geay, Florian; Kestemont, Patrick

doi:10.1007/978-94-017-7227-3_22

Cited by 11 publications

(6 citation statements)

References 103 publications

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“…Still, pikeperch is thought to be one of the most thermophilic per-cid fish species studies so far (Geay & Kestemont, 2015). Thus, this thermophilic feature does not seem to apply at such low temperature for maturing broodstock.…”

Section: Discussionmentioning

confidence: 99%

Duration of chilling phase, but not thermal condition, influence the gonad maturation of male and female domesticated pikeperch (Sander lucioperca)

Milla

Khendek

Żarski

et al. 2021

Aquaculture Fish & Fisheries

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This study was designed to determine the influence of the thermal level and duration of chilling period on the initiation and progress of gonadogenesis and gametogenesis under controlled conditions in pikeperch (Sander lucioperca). A set of 120 fish was distributed into eight tanks (15 fish per tank). The effects of two temperatures (6 or 12 • C) in combination with two durations of chilling period, either short (S; 75 days at 6 • C and 125 days at 12 • C) or long (L; 135 days at 6 • C and 185 days at 12 • C), were investigated for the effect on growth, gonadosomatic index (GSI), hepatosomatic index (HSI), gamete developmental stage and sex-steroid levels (17 beta-estradiol-E2 and testosterone-T). These zootechnical and physiological parameters were selected as they reflect the progressive advancement of gametogenesis in percids including pikeperch. The results show that the temperature did not affect the reproductive parameters but down-regulated the HSI and the condition factor in females. In addition, the exposure to a longer chilling period, whatever the temperature, allowed for (1) further advancement of gonadogenesis in females (GSI = 6.5% vs. 11%), (2) further advancement of gametogenesis (0% vs. 60% of oocytes at late vitellogenesis, 15% vs. 80% of spermatozoa in males) and (3) the maintenance or increase of plasma sex steroids in both sexes (e.g. 10 ng/mL vs. 27 ng/mL of T in females). Together with already published data, these results suggest that, depending on the features of fish populations and photothermal programmes, the maintenance of temperature at either 6 or 12 • C does not necessarily impact pikeperch gonad maturation. However, the duration of the chilling period is an important factor for the optimization of gonadogenesis and gametogenesis achievement before reproduction.

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Section: Discussionmentioning

confidence: 99%

Duration of chilling phase, but not thermal condition, influence the gonad maturation of male and female domesticated pikeperch (Sander lucioperca)

Milla

Khendek

Żarski

et al. 2021

Aquaculture Fish & Fisheries

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“…Consequently, the results cannot be attributed exclusively to the influence of feed pellet size because of the slight difference in the feed micronutrient compositions. Depending on life stage, the nutritional requirements of percid fishes are met by formulated feeds containing 43-50% protein, 13-18% lipids, and 10-15% carbohydrates, which are noted to support very good growth performance when the feed is delivered either continuously or three times per day (Geay andKestemont 2015, Policar et al 2019). In the current experiment, the feed composition was within optimal values for rearing pikeperch.…”

Section: Discussionmentioning

confidence: 99%

Effect of feed pellet size and tank water level on growth performance in juvenile pikeperch, Sander lucioperca (L.), reared in a recirculating system

Kozlowski

Piotrowska

Szczepkowska

2021

Fisheries &Amp; Aquatic Life

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Three 28-day experiments were performed to assess the impact of two sinking feed pellet sizes (0.5–1.0 and 0.9–1.6 mm for experiment I, 0.9–1.6 and 1.3–2.0 mm for experiment II, and 1.3–2.0 and 1.6–2.4 mm for experiment III) and two tank water levels (0.50 and 0.65 m) on the growth performance of juvenile pikeperch of different mean initial body weights in experiment I, II, III respectively (1.1 ± 0.1 g, 5.1 ± 0.2 g, 16.6 ± 0.5 g) at different ages (67, 102, and 137 days post hatch). Two-factor analysis of variance showed that the growth of pikeperch was positively correlated with feed pellet size in experiment I, both feed pellet size and water level in experiment II, and water level in experiment III. The feed pellet sizes of 0.9–1.6 and 1.3–2.0 mm at body weights of 1.1 g and 5.1 g, respectively, are recommended to promote more efficient pikeperch growth rates. In the case of pikeperch with a body weight of 16.6 g, the feed pellet size was less important than the tank water level.

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“…Thus, the nutritional requirements in proteins, lipids, and some additives, such as oxidative as ethoxyquin, were specified [89,[115][116][117][118]. These studies allowed defining that a feed for perch should contain 43-50% of proteins, 13-18% of lipids, and 10-15% of glucids [119].…”

Section: On-growing Nutritional Needsmentioning

confidence: 99%

Domestication of the Eurasian Perch (Perca fluviatilis)

Fontaine¹,

Teletchea²

2019

Animal Domestication

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The farming of percids (Eurasian perch Perca fluviatilis, pikeperch Sander lucioperca) has progressively become a diversification path of European inland aquaculture in the past 25 years. This required the domestication of wild or pseudowild (coming from polyculture ponds) populations. Considering the history of Eurasian perch, this domestication can be subdivided into four main successive parts: (1) a short initial prospective period (bibliographical analysis, market analysis, etc.), (2) a first experimental period to acquire basic data that notably resulted in the choice of the rearing system and commercial feeds, (3) a second experimental period allowing to get an in-depth knowledge on each of the main phase of the life cycle of this species (control of the life cycle in rearing conditions), and (4) a third experimental period, still ongoing, of optimization of rearing practices. This chapter allows understanding the domestication framework of this species and better understanding the role of different actors in the decision-making. In the future, the farming of this species is likely to rely on a larger diversity of rearing systems; a key issue is to study the interactions between species-rearing system. How different domestication trajectories or paths (intratrajectories variability) will affect global performances of Eurasian perch remains an open question.

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Feeding and Nutrition of Percid Fishes During Ongrowing Stages

Cited by 11 publications

References 103 publications

Duration of chilling phase, but not thermal condition, influence the gonad maturation of male and female domesticated pikeperch (Sander lucioperca)

Duration of chilling phase, but not thermal condition, influence the gonad maturation of male and female domesticated pikeperch (Sander lucioperca)

Effect of feed pellet size and tank water level on growth performance in juvenile pikeperch, Sander lucioperca (L.), reared in a recirculating system

Domestication of the Eurasian Perch (Perca fluviatilis)

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