Growth performance and body composition of pike perch (Sander lucioperca) fed varying formulated and natural diets

Schulz, Carsten; Günther, S.; Wirth, Manfred; Rennert, B.

doi:10.1007/s10499-006-9056-z

Cited by 24 publications

(13 citation statements)

References 29 publications

(34 reference statements)

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“…The values of these variables were similar to those noted in other studies in which juvenile pikeperch were reared on commercial feed (e.g. Zakęś et al 2001; Molnár, Szabó, Szabó, Szabó & Hancz 2006; Schulz, Günther, Wirth & Rennert 2006).…”

Section: Discussionsupporting

confidence: 85%

“…Notation as in Table 5 Fatty acids similar to those noted in other studies in which juvenile pikeperch were reared on commercial feed (e.g. Zakęs Ł et al 2001;Molna Ł r, Szabo¤ , Szabo¤ , Szabo¤ & Hancz 2006;Schulz, Gˇnther, Wirth & Rennert 2006). Feeding ¢sh diets with herbal adjuvants can improve the lipid metabolism as fat is more e¡ectively utilized as a source of energy, which means that protein ingested with the diets can be used more e¡ectively for somatic growth (Jang & Choi 2003, cited in Ji, Jeong et al 2007.…”

Section: Discussionmentioning

confidence: 64%

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Effect of two medicinal herbs (Astragalus radixandLonicera japonica) on the growth performance and body composition of juvenile pikeperch [Sander lucioperca(L.)]

Zakęś

Kowalska

Demska‐Zakęś

et al. 2008

Aquaculture Research

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The aim of this study was to determine the impact of feeding juvenile pikeperch diets with medicinal herb adjuvants on the growth performance, proximate body composition, fatty acids profile (whole fish, muscle tissues, viscera) and cytological and histological indicators of the liver and middle intestine. The fish (mean body weight of ca. 110 g) were fed diets with a 0.1% supplement of Astragalus radix (group A), Lonicera japonica (group L) or a mixture of these herbs (A. radix+L. japonica; group A/L) for 8 weeks. The herbal supplementation was not noted to have had an impact on the analysed indicators of fish growth performance, condition or feed conversion ratio (P>0.05). Statistically significant intergroup differences were noted in the value of the hepatosomatic index, hepatocyte size, their nucleus and nucleus/cytoplasm diameter ratio (P<0.05). Significant intergroup differences were also noted in the appearance of the hepatic parenchyma. Statistically significant intergroup differences were also noted in the protein content of the whole fish body. The analysis of the proximal composition of the fish viscera, in turn, indicated significant differences in the fat content (P<0.05). Among the analysed group of fatty acids (saturated – SFA, monoenoic – MUFA, polyenoic – PUFA) contained in the whole fish, the fillets and the viscera, significant intergroup differences were noted with regard to SFA (viscera) and MUFA (whole fish) (P<0.05). The total PUFA content was stable, although significant intergroup differences were noted with regard to a few of the acids that belong to this group (P<0.05).

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Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 64%

Effect of two medicinal herbs (Astragalus radixandLonicera japonica) on the growth performance and body composition of juvenile pikeperch [Sander lucioperca(L.)]

Zakęś

Kowalska

Demska‐Zakęś

et al. 2008

Aquaculture Research

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“…The dashed line (ratio = 1) indicates equal amounts of fatty acids in the juveniles and in the diet. (Hilge and Steffens 1996;Kestemont and Mélard 2000;Mandiki et al 2004;Nyina-Wamwiza et al 2005;Schulz et al 2006Schulz et al , 2007Lepi c et al 2017). However, in contrast to our results, other investigations on percid fish have shown relatively low SGRs.…”

Section: Growthcontrasting

confidence: 90%

“…However, in contrast to our results, other investigations on percid fish have shown relatively low SGRs. Indeed, SGR values ranged from 2.1% to 3.5% per day for Zander Sander lucioperca juveniles that either were given commercial diets formulated for Rainbow Trout or were fed natural diets (Zakes and Demska-Zakes 1996;Schulz et al 2006). High FCR may be related to the territorial behavior of dominant individuals; therefore, a high daily feeding ratio (25% of total biomass per 24 h) was chosen to ensure adequate feed intake for all fish.…”

Section: Growthmentioning

confidence: 99%

Novel Feed from Invasive Species is Beneficial to Walleye Aquaculture

et al. 2018

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Carnivorous fishes, such as the Walleye Sander vitreus, are nutritionally demanding for fish meal. A promising alternative to marine‐origin fish meal, the supply of which has been stagnant in recent decades, is fish meal derived from undesirable freshwater species, such as the White Sucker Catostomus commersonii. To evaluate the relative value of such ingredients, we examined the growth performance of Walleye juveniles. Two dietary treatments were tested: an experimental (EXP) diet that was manufactured using White Sucker as fish meal in comparison with a commercial (COM) diet, EWOS Micro (EWOS Canada, Ltd.). Dietary lipid content was 15.1% and 16.8% for EXP and COM diets, respectively. The protein content was 50.4% and 57.6% for EXP and COM diets, respectively. The energy content was 5,098.76 ± 9.23 cal/g (mean ± SD) for the EXP diet and 5,134.47 ± 10.95 cal/g for the COM diet. Starting at 27 d posthatch, Walleye juveniles (initial weight [mean ± SD] = 0.03 ± 0.008 g; initial length = 15.7 ± 1.5 mm) were reared for 6 weeks in three replicate tanks for each treatment. Condition factor (0.83), final weight (1.12 ± 0.3 g), and weight gain (1.09 ± 0.06 g) were higher in fish that were fed the EXP diet. Similarly, the energetic lipid content of fish in the EXP treatment group (mean ± SD = 5.01 ± 0.45 g/kg) was also higher than that of fish fed the COM diet (3.30 ± 0.53 g/kg). Although the polar lipid content (membrane lipids) was similar in fish from the two treatments, the nutritional ratio for COM juveniles was over 1.5 for arachidonic acid and docosahexaenoic acid, indicating selective incorporation by juveniles and suggesting a potential dietary imbalance of these fatty acids. Furthermore, the higher observed selective incorporation of oleic acid in juveniles fed the EXP diet suggested that a higher value of this fatty acid in the EXP feed could have increased Walleye growth performance. Threonine was the main essential amino acid (AA; >18.5% of total AAs), while serine and glycine contributed the highest percentages of the nonessential AAs (>31% and 8.5% of total AAs, respectively). All three AAs, often considered limiting ingredients, are important to support growth and are involved in metabolic processes in some fish species. Our results demonstrate that feed pellets made with White Sucker fish meal improved growth in Walleye juveniles and can serve as a suitable and probably lower‐cost regional alternative to marine fish meal in feeds for carnivorous fishes.

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“…Zakes and Demska‐Zakes (1996) found SGR of 2.09% and 3.01% per day for juvenile pike perch with initial body weights of 0.32 g fed with zooplankton and commercial diets. Schulz et al . (2006) achieved SGR of 2.49–3.47% per day and 2.44–3.11% per day feeding pike perch of initial weights of 1.36 g and 1.00–1.09 g with commercial rainbow trout (plus lipid supplementation) or natural diets and formulated diets with varying protein contents, respectively.…”

Section: Discussionmentioning

confidence: 99%

Effects of varying dietary protein to lipid ratios on growth performance and body composition of juvenile pike perch (Sander lucioperca)

Schulz

Huber

Ogunji

et al. 2008

Aquaculture Nutrition

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The present study investigated the effect of varying dietary protein-to-lipid ratios (P/L) on growth performance and body composition of pike perch (Sander lucioperca) fingerlings with an initial body weight of 1.35-1.40 g. Triplicate groups were reared during 56 days in recirculation systems and fed six experimental diets containing three dietary levels of lipid (90, 130, 170 g kg )1 of dry matter, d.m.) combined with two levels of dietary protein (470, 540 g kg )1 d.m.). During the experimental period the fixed feeding rates decreased from 10% to 5% of the total fish biomass per day. In contrast to previous results obtained with this species, the present study clearly demonstrated the occurrence of protein sparing effect. The best results for feed conversation ratio and specific growth rates were obtained in the treatments containing highest lipid level: diet 3 (P/L 47/17) and diet 6 (P/L 53/17). The d.m. and crude lipid contents of pike perch whole body increased in direct proportion of the dietary lipid levels. No difference was observed on crude protein and ash content among the treatments. Increasing hepatosomatic index at highest dietary lipid level suggested a limited lipid utilization of percids. KEY WORDS

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Growth performance and body composition of pike perch (Sander lucioperca) fed varying formulated and natural diets

Cited by 24 publications

References 29 publications

Effect of two medicinal herbs (Astragalus radixandLonicera japonica) on the growth performance and body composition of juvenile pikeperch [Sander lucioperca(L.)]

Effect of two medicinal herbs (Astragalus radixandLonicera japonica) on the growth performance and body composition of juvenile pikeperch [Sander lucioperca(L.)]

Novel Feed from Invasive Species is Beneficial to Walleye Aquaculture

Effects of varying dietary protein to lipid ratios on growth performance and body composition of juvenile pike perch (Sander lucioperca)

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