Influence of salinity on the biochemical composition of the rotifer Brachionus plicatilis (Muller). aspects of adaptation

Фролов, А. В.; Pankov, Stefan; Geradze, K.N.; Pankova, S.A.

doi:10.1016/0300-9629(91)90129-z

Cited by 31 publications

(24 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rotifers enriched with 0% DHA contained no detectable DHA, while rotifers enriched with 10% DHA contained an average of 7.3% DHA. Other workers have reported a direct relationship between PUFA levels in rotifers and levels in their enriched diets (Watanabe, Kitajima & Fujita 1983; Rainuzzo, Olsen & Rosenlund 1989; Frolov, Pankov, Geradze, Pankova & Spektorova 1991).…”

Section: Discussionmentioning

confidence: 99%

Effects of dietary docosahexaenoic acid (22:6n-3) and arachidonic acid (20:4n-6) on the growth, survival, stress resistance and fatty acid composition in black sea bass Centropristis striata (Linnaeus 1758) larvae

Rezek

Watanabe

Harel

et al. 2010

Aquaculture Research

View full text Add to dashboard Cite

The objectives of this study were to determine the effects of the dietary docosahexaenoic acid (DHA) to arachidonic acid (ARA) ratio on the survival, growth, hypersaline stress resistance and tissue composition of black sea bass larvae raised from ¢rst feeding to metamorphic stages. Larvae were fed enriched rotifers Brachionus rotundiformis and Artemia nauplii containing two levels of DHA (0% and10% total fatty acids 5 TFA) in conjunction with three levels of ARA (0%, 3% and 6% TFA). On d24ph, larvae fed the 10:6 (DHA:ARA) treatment showed signi¢cantly (Po0.05) higher survival (62.3%) than larvae fed 0:0 (DHA:ARA) (27.4%). Notochord length and dry weight were also signi¢cantly (Po0.05) greater in the 10:6 (DHA:ARA) treatment (8.65 mm, 2.14 mg) than in the 0:0 (DHA:ARA) (7.7 mm, 1.65 mg) treatment. During hypersaline (65 g L À 1 ) challenge, no signi¢cant di¡erences (P40.05) were observed in the median survival time (ST50) between larvae fed 10% DHA (ST50 525.6 min) and larvae fed 0% DHA (ST50 518.2 min). The results suggested that black sea bass larvae fed prey containing 10% DHAwith increasing ARA within the range of 0^6% showed improved growth and survival from ¢rst feeding through metamorphic stages.

show abstract

Section: Discussionmentioning

confidence: 99%

Effects of dietary docosahexaenoic acid (22:6n-3) and arachidonic acid (20:4n-6) on the growth, survival, stress resistance and fatty acid composition in black sea bass Centropristis striata (Linnaeus 1758) larvae

Rezek

Watanabe

Harel

et al. 2010

Aquaculture Research

View full text Add to dashboard Cite

show abstract

“…Its dry weight composition consists approximately of 15% lipids, 35% proteins and 30% carbohydrates (Suantika, Dhert, Nurhudah & Sorgeloos 2000), yielding a ratio protein to lipid of 2.3. Baker's yeast, on the other hand, is not as nutritionally boosted, with a composition of 8% lipids, 30% proteins and 46% carbohydrates (Frolov, Pankov, Geradze, Pankova & Spektorova 1991), yielding a ratio protein to lipid of 3.75. The quantity of phytoplankton supplied daily to the rotifer cultures was different in the two feeding regimes: in the case of yeast, phytoplankton was added in order to improve the nutritional value of the diet (Hirayama & Watanabe 1973), whereas in the case of Culture Selco, a lesser amount of phytoplankton was required, so as to improve the quality of the culture medium (Dhert et al 2001).…”

Section: Methodsmentioning

confidence: 99%

Mixis in rotifers of the lineage ?Nevada?, belonging to the Brachionus plicatilis species complex, under different feeding regimes

et al. 2007

View full text Add to dashboard Cite

A strain of Brachionus 'Nevada', which belongs to the Brachionus plicatilis species complex, and is commonly found in European hatcheries, was investigated in terms of its mixis potential. Two feeding regimes used for mass culturing were employed. Rotifer populations were fed on phytoplankton (Tetraselmis suecica) and either baker's yeast, Saccharomyces cerevisiae (treatments A) or Culture Selco s (treatments B). In order to promote mixis, the salinity of the culture medium was reduced from 40 to 20 g L À 1 . Indeed, the rotifer populations of lower salinity (A 20, B 20) showed a twofold increase in mixis rates compared with those of higher salinity (A 40, B 40). In addition, treatment A 20 showed signi¢cantly higher levels of mixis (22.59 AE 2.07%) compared with B 20 (16.56 AE 1.46%). The opposite trend was observed for the parthenogenetic growth rates (A 20: 0.46 AE 0.01; B 20: 0.62 AE 0.01). It is thus concluded that Culture Selco leads to a higher abundance of amictic ovigerous females, whereas yeast supports a higher abundance of males and mictic females carrying resting eggs. The two types of feeding regimes can be used for di¡erent purposes in a hatchery.

show abstract

“…However, fish larvae fed on rotifers often exhibit slow growth rates and high mortalities which has been attributed to PUFA deficiencies (Owen et al, 1975;Cowey, 1976;Howell, 1979;Scott and Middleton, 1979;Watanabe et al, 1983;Ben-Amotz et al, 1987;Dendrinos and Thorpe, 1987;James et al, 1987;Kissil and Koven, 1990). The chemical composition of the rotifer has been shown to be altered by diet (Watanabe et al, 1983;Frolov et al, 1991). Furthermore, a relationship between the fatty acid content in the diet and the rotifer has also been reported (Watanabe et al, 1978(Watanabe et al, , 1983Scott and Middleton, 1979;Lubzens et al, 1985Lubzens et al, , 1987Estevez and Planas, 1988;Stottrup, 1989;Frolov et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

Effects of commercial enrichment diets on the nutritional value of the rotifer (Brachionus plicatilis)

1993

View full text Add to dashboard Cite

The rotifer, Brachionus plicatilis, pre-fed on baker's yeast, was enriched for 6 h with three commercial products from Artemia Systems S.A., namely Protein Selco (microcapsules), Dry Selco (microparticles) and Super Selco (an emulsion containing high levels of n-3 HUFA). The biochemical composition (protein, carbohydrate, total lipid, lipid classes and fatty acids) and dry weight of the rotifers before and after the enrichment experiments were studied. Two of the enrichers, Dry Selco and Super Selco, are rich in lipid but poor in protein and carbohydrate. Protein Selco contains lipid as well as protein and carbohydrate. The biochemical composition and the dry weight of the rotifers were changed after 6 h of enrichment. The percentage of protein and lipid increased with all of the three enrichers and the percentage of carbohydrate decreased slightly. Rotifer dry weight increased in rotifers enriched on Protein Selco. Phospholipids, sterol esters+ waxes, triacylglycerols and free fatty acids increased after the enrichment with the three enrichers while sterols slightly decreased when the rotifers were fed on Protein Selco. The fatty acid content of the rotifers increased after the enrichment with all of the enrichers and this increase was particularly apparent in the case of n-3 HUFAs (20:5n-3 and 22:6n-3).

show abstract

Influence of salinity on the biochemical composition of the rotifer Brachionus plicatilis (Muller). aspects of adaptation

Cited by 31 publications

References 55 publications

Effects of dietary docosahexaenoic acid (22:6n-3) and arachidonic acid (20:4n-6) on the growth, survival, stress resistance and fatty acid composition in black sea bass Centropristis striata (Linnaeus 1758) larvae

Effects of dietary docosahexaenoic acid (22:6n-3) and arachidonic acid (20:4n-6) on the growth, survival, stress resistance and fatty acid composition in black sea bass Centropristis striata (Linnaeus 1758) larvae

Mixis in rotifers of the lineage ?Nevada?, belonging to the Brachionus plicatilis species complex, under different feeding regimes

Effects of commercial enrichment diets on the nutritional value of the rotifer (Brachionus plicatilis)

Contact Info

Product

Resources

About