Effects of feeding rate on growth performance of white sturgeon (Acipenser transmontanus) larvae

Deng, Dong‐Fang; Koshio, Shunsuke; Yokoyama, Saichiro; Bai, Sungchul C.; Shao, Qingjun; Cui, Yuntao; Hung, Silas S.O.

doi:10.1016/s0044-8486(02)00461-1

Cited by 100 publications

(134 citation statements)

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“…Lower case denotes significant differences within a treatment group across duration larvae. In white sturgeon larvae, sub-optimal feeding for only one week led to increased mortality and decreased growth performance, nutrient utilization, and energy retention (Deng et al 2003). Decreased RNA:DNA ratios were also seen in fish larvae during food restriction or deprivation, reflecting a reduced or stunted growth (Raae et al 1988;Deng et al 2003).…”

Section: Discussionmentioning

confidence: 99%

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Starvation reduces the heat shock protein responses in white sturgeon larvae

et al. 2011

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This study investigates the responses of white sturgeon larvae (Acipenser transmontanus) to starvation and thermal stress, through the measurement of nutritional status (i.e. growth performances) and cellular biomarkers: heat shock proteins (Hsp) 70 and 90. White sturgeon larvae (25 day post hatch; initial weight 179.0±5.1 mg) were fed (20% body weight per day) or starved for 24, 48 or 72 hrs. Every 24 hrs, five larvae from each of the starved or fed treatment replicates were exposed to heat shock resulting from an increase in water temperature from 19°C to 26°C, at a rate of 1°C per 15 min, and maintained at 26°C for 4 hrs. No mortality was observed in this study. Starvation significantly (p<0.05) decreased the body weight and body contents of energy, protein, and lipid of the experimental larvae, compared to the fed larvae. Heat shock induced the expressions of Hsp70 and Hsp90 in both the fed and starved group; however, starvation reduced the induction at all sampling points. The current study demonstrates that poor larval nutritional status, assessed by the aforementioned parameters, reduced heat shock responses to thermal stress, as measured by heat shock protein levels. Furthermore, Hsp70 and 90 are more sensitive to heat shock and starvation, respectively. This may be, in part, a result of the different functioning of the heat shock proteins in cellular stress response and warrants further study.

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Section: Discussionmentioning

confidence: 99%

“…Three tanks were then randomly assigned to the feeding or starvation treatments. The same starter feed was used, at a rate of 20% BWd −1 (Deng et al 2003(Deng et al , 2009, for the feeding treatment and dispensed using 24-hr automatic feeders (Cui et al 1997). …”

Section: Experimental Design and Larvae Husbandrymentioning

confidence: 99%

Starvation reduces the heat shock protein responses in white sturgeon larvae

et al. 2011

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“…Duplicate determinations of whole body proximate moisture (WBmoist, %) and crude protein (WBprot, %), lipid (WBlip, %) and ash (WBash, %) were then performed on the ground carcasses according to Association of Official Analytical Chemists standards (Jones 1984). Calculations of WBe (mJ kg −1 ) were as in Deng et al (2003) using the formula:…”

Section: Nutritional Statusmentioning

confidence: 99%

Effects of nutritional deprivation on juvenile green sturgeon growth and thermal tolerance

et al. 2015

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“…Fish appear to continuously increase in weight commensurate with feeding rate up to the level of satiation, although this increase may not correspond with incremental feed consumption. Continuous weight gain in response to increased feeding rate has been reported in blackspot seabream (Pagellus bogaraveo; Ozorio et al, 2009); olive flounder (P. olivaceus; Cho et al, 2007); white sturgeon (Acipenser transmontanus; Deng et al, 2003); and gilthead sea bream (Spurus aurata; Mihelakakis et al, 2002), among other species. However, the improvement in growth performance of fish fed at a rate below satiation varied according to fish size.…”

Section: Discussionmentioning

confidence: 92%