Effects of feeding rates and feeding frequency on the growth performances of juvenile hybrid sturgeon, Acipenser schrenckii Brandt♀×A. baeri Brandt♂

Luo, Lin; Li, Tieliang; Wang, Xing; Xue, Mei; Ma, Zhiyong; Jiang, Na; Li, Wentong

doi:10.1016/j.aquaculture.2015.06.005

Cited by 30 publications

(30 citation statements)

References 18 publications

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“…The OFRs have been determined for different sturgeon species, including Atlantic Sturgeon (Kelly and Arnold ; Jodun ), hybrid sturgeon (♀ Amur Sturgeon A. schrencki × ♂ Siberian Sturgeon A. baeri ; Luo et al. ), Green Sturgeon (Zheng et al. ), Beluga Huso huso (Mohseni et al.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Formulated Feed for Juvenile Lake Sturgeon Based on Growth Performance and Nutrient Retention

Lee

Zhao

et al. 2018

N American J Aquac

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This study evaluated the potential of feeding formulated feed to juvenile Lake Sturgeon Acipenser fulvescens and determined the optimal feeding rate of a soft-moist feed on the growth performance and whole-body composition of the fish. Six feeding rates (% body weight [BW]/d) of the soft-moist feed were assigned to each of the 1-week feeding trials: 2%, 4%, 6%, 8%, 10%, and 12% BW/d for trial I; and 0.5%, 2%, 3.5%, 5%, 6.5%, and 8% BW/d for trial II. As reference diets, frozen bloodworms and a dry formulated feed were administered to the fish at feeding rates of 8% and 5% BW/d for trials I and II, respectively. Each treatment was assigned to three tanks, with either 18 fish (trial I; initial BW [mean ± SD] = 3.5 ± 0.05 g) or 15 fish (trial II; initial BW = 7.8 ± 0.1 g) per tank. No mortality was observed during the two trials. Weight gain and feed conversation ratio were significantly better for fish that received the soft-moist feed than for those fed the bloodworms. The dry diet and soft-moist diet resulted in similar growth rates. Growth performance and whole-body lipid and moisture content were significantly influenced by feeding rates in both trials. The tyrosine, isoleucine, lysine, phenylalanine, and valine levels in whole fish were significantly altered by the feeding rates in trial I, whereas only the glycine level was altered in trial II. Optimum feeding rates based on the specific growth rate were estimated to be 7.6% and 6.2% BW /d (or 1.47 and 1.19 MJ·kg BW −1 ·d −1 ) for Lake Sturgeon weighing 3.5 and 7.8 g, respectively. These results indicate that Lake Sturgeon can be given formulated feed after previous acclimation to the formulated feed during the early life stage.

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Section: Discussionmentioning

confidence: 99%

Evaluation of Formulated Feed for Juvenile Lake Sturgeon Based on Growth Performance and Nutrient Retention

Lee

Zhao

et al. 2018

N American J Aquac

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“…These results are in agreement with those reported by Salama () for the closely related species, Asian seabass, with the author recommending an optimal feeding frequency of two meals per day. The potential of enhanced feeding frequency in improving fish growth performance and feed utilization efficiency, up to a certain level, has also been pointed out for several other species such as Atlantic halibut (Schnaittacher et al ); Norris and NWAC103 channel catfish, Ictalurus punctatus (Peterson and Small ); pikeperch, Sander lucioperca (Wang et al ); hybrid sturgeon (Luo et al ); and blunt snout bream, Megalobrama amblycephala (Tian et al ). It has been suggested that increased feeding frequency may result in improved growth rates by enhancing feed intake and FE in most species (Zhao et al ).…”

Section: Discussionmentioning

confidence: 92%

Effect of Dietary Lipid Level and Feeding Frequency on the Growth, Feed Utilization, and Body Composition of Juvenile Spotted Seabass, Lateolabrax maculatus

Rahman

Lee

2016

J World Aquaculture Soc

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A 6‐wk feeding trial was conducted to evaluate the effects of different dietary lipid levels and feeding frequencies on the growth performance, feed utilization, and body composition of juvenile spotted seabass, Lateolabrax maculatus. Two experimental diets were prepared with two different dietary lipid contents, low lipid (7%; LL) and high lipid (14%; HL). Each diet was fed to triplicate groups of fish (5.5 ± 0.01 g) to apparent satiation at three meals per day, two meals per day, one meal per day, and one meal every 2 d, respectively, for 6 wk. Fish growth performance in terms of weight gain (WG) and specific growth rate (SGR) was significantly affected by frequency of feeding, with increasing values as feeding frequency increased up to twice daily, regardless of dietary lipid content. In addition, fish fed the diet with the HL level (14%) showed significantly higher WG and SGR than those fed the LL diet (7%) at all the feeding frequencies tested. Feed efficiency (FE) and protein efficiency ratio (PER) were affected by both dietary lipid level and feeding frequency. FE and PER values were significantly higher in fish fed the HL diet and/or when fish were fed twice or thrice a day. However, daily feed intake and daily energy intake were significantly affected only by feeding frequency and were significantly reduced when the fish were fed only once every 2 d compared with those fed more frequently. Whole‐body moisture content of fish tended to decrease with increasing dietary lipid level and frequency of feeding. In contrast, whole‐body lipid content increased in fish as dietary lipid level and feeding frequency increased. Consequently, we can conclude that feeding spotted seabass twice daily to apparent satiation is acceptable and sufficient to achieve good growth and FE, as fish performance was not significantly enhanced when feeding was increased from two to three times daily.

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“…It is well known that an optimal feeding rate may vary depending on the species and size of fish, feeding regimen, feed quality and other culture conditions (Deng et al, ; Giberson & Litvak, ; Hung, Conte, & Lutes, ; Luo et al, ). Determination of optimal feeding rates for sturgeon has been intensively investigated in white and green sturgeon (Deng et al, ; Hung et al, ; Hung & Lutes, ; De Riu et al, ; Zheng et al, ).…”

Section: Discussionmentioning

confidence: 99%

Determination of optimal feeding rates for juvenile lake sturgeon ( Acipenser fulvescens) fed a formulated dry diet

et al. 2019

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Two 3‐week growth trials were performed to determine the optimum feeding rate of juvenile lake sturgeon (Acipenser fulvescens) fed with a semi‐purified dry diet (protein, 440 g; lipid, 130 g/kg) at different feeding rates: 5, 10, 20, 30, and 40 g/kg body weight per day (BW/.d‐1), for 36 g‐sized fish; and 2.5, 5, 10, 20, and 30 g/kg BW/.d‐1, for 80 g sized fish. Feeding rates significantly influenced growth performances, feed conversion ratio, wholebody lipid and moisture contents, energy and protein retention, and fasted blood glucose levels (p < 0.05). The ratio of total C/total N measured in whole fish was positively correlated to the feeding rates and the lipid contents of whole fish. Suboptimal feeding significantly depressed growth performance and protein synthesis based on the measurement of RNA/DNA ratio in white muscle. Based on polynomial regression models, an optimal feeding rate to support the maximum growth, protein and energy retention was 34.5, 22 and 27.3 g/kg BW/.d‐1, respectively, for fish sized at 36–72 g; and 29.0, 16.9 and 19.9 g/kg BW/.d‐1, respectively for fish sized at 80–140 g. Results of this study will benefit future research to develop practical feeds to replace frozen live feed and feed management for lake sturgeon.

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Effects of feeding rates and feeding frequency on the growth performances of juvenile hybrid sturgeon, Acipenser schrenckii Brandt♀×A. baeri Brandt♂

Cited by 30 publications

References 18 publications

Evaluation of Formulated Feed for Juvenile Lake Sturgeon Based on Growth Performance and Nutrient Retention

Evaluation of Formulated Feed for Juvenile Lake Sturgeon Based on Growth Performance and Nutrient Retention

Effect of Dietary Lipid Level and Feeding Frequency on the Growth, Feed Utilization, and Body Composition of Juvenile Spotted Seabass, Lateolabrax maculatus

Determination of optimal feeding rates for juvenile lake sturgeon ( Acipenser fulvescens) fed a formulated dry diet

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