Silver catfish
Activity PAtterns of south AmericAn silver cAtfish (Rhamdia quelen)
... forming aggregations and moved into deeper areas during the night. the roach in the turbid lake were dispersed in the pelagial zone during the day and moved inshore at night. the behavior in the clear water lake is seen ...
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The essential oil from Lippia alba induces biochemical stress in the silver catfish (Rhamdia quelen) after transportation
... Variations in the water parameters, such as ammonia and carbon dioxide levels, can provoke stress that could be minimized, at least in some species, through the addition of either sedatives or anesthetics in the ...
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Transporting live silver catfish (Rhamdia quelen) with salt addition does not mitigate fish stress and negatively affects meat quality
... during silver catfish (Rhamdia quelen) transportation on stress and meat ...Adult silver catfish (n=380) were distributed in four experimental groups: T1: non-transported; T2: transported ...
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Efficacy of eugenol and the methanolic extract of Condalia buxifolia during the transport of the silver catfish Rhamdia quelen
... This study evaluated extracts of Condalia buxifolia as anesthetics for the silver catfish Rhamdia quelen. The effectiveness of eugenol and of the methanolic extract (ME) of C. buxifolia during the transport ...
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Dissolved oxygen and ammonia levels in water that affect plasma ionic content and gallbladder bile in silver catfish
... Fish under hypoxia are likely to experience high ammonia levels (WALSH et al., 2007). Decreased DO levels increases ammonia toxicity in freshwater fish (THURTSON et al., 1981; WAJSBROT et al., 1991; SERAFINI et al., in ...
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Supplementation with microencapsulated lemongrass essential oil improves protein deposition and carcass yield in silver catfish (Rhamdia quelen)
... ABSTRACT. The aim of this study was to investigate the effect of dietary supplementation with Cymbopogon flexuosus essential oil (EO) on productive performance, metabolic parameters and body and fillet composition of ...
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Effects of delayed first feeding on growth of the silver catfish larvae Rhamdia voulezi (Siluriformes: Heptapteridae)
... The ability to tolerate certain periods of food deprivation is crucial to larval survival and growth (Chen et al., 2007). However, food deprivation should be avoided before the complete development of the larvae, because ...
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Effect of phytase on digestibility of corn, sorghum and wheat bran by silver catfish (Rhamdia voulezi)
... The ADC of crude protein of corn found in the present study corroborates results obtained by Oliveira-Filho and Fracalossi (2006), who evaluated the digestibility of energy and protein feed for silver ...
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Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments
... as silver catfish growth at different pH is altered by water hardness, it was expected that the pH preference could also be altered by adaptation to different water ...
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Oxidative stability during frozen storage of fillets from silver catfish (Rhamdia quelen) sedated with the essential oil of Aloysia triphylla during transport
... Silver catfish (Rhamdia quelen) is a freshwater fish found from southern Mexico to central Argentina, whose importance in aquaculture has grown, especially in Brazil (BARCELLOS et ...
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Characterization of an IgM-like immunoglobulin from silver catfish (Rhamdia quelen) serum and its use for the production of polyclonal antibodies and development of immunoassays
... that silver catfish serum Ig is composed of one immunodominant H chain with approximately 75k Da and one L chain with approximately 28 kDa, similar to human ...the catfish IgM-like Ig recognized both ...
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PRODUCTIVE PERFORMANCE OF SILVER CATFISH, Rhamdia quelen, JUVENILES STOCKED AT DIFFERENT DENSITIES / Desempenho produtivo de juvenis de Jundiá (Rhamdia quelen) submetidos a diferentes densidades de estocagem.
... with silver catfish at density of 2 fish/m 2 in earthen nursery ponds obtained mean AFCR of ...rearing catfish at higher densities in controlled ...African catfish (Clarias gariepinus), the ...
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Biochemical parameters of silver catfish (Rhamdia quelen) after transport with eugenol or essential oil of Lippia alba added to the water
... of silver catfish transported with both compounds than those transported in only ...of silver catfish transported with EUG, while the addition of EOL did not affect the activity of this ...of ...
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Sedative and anesthetic activities of the essential oils of Hyptis mutabilis (Rich.) Briq. and their isolated components in silver catfish (Rhamdia quelen)
... Silver catfish (R. quelen) juveniles were purchased from a local fish farm and transported to the laboratory, where they were maintained in continuously aerated 250-L tanks with controlled water parameters. ...
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Anesthetic activity and bio-guided fractionation of the essential oil of Aloysia gratissima (Gillies Hook.) Tronc. in silver catfish Rhamdia quelen
... Conversely, the hypothesis that the minor constituents are responsible for the anesthetic activity of EOA in silver catfish cannot be ruled out, since the fractions of lower yield were not tested. Essential ...
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Increased immunoglobulin production in silver catfish (Rhamdia quelen) exposed to agrichemicals
... channel catfish (Ictalurus punctatus) no antibodies to Ichthyophthirius multifilis could be detected in immunized fish kept for 21 days at 15 6 C or at temperatures cycling from 15 6 to 25 6 C ...
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Inactivated Parapoxvirus ovis as inducer of immunity in silver catfish (Rhamdia quelen)
... Silver catfish (50 – 80 g) of both sexes were acclimatized in self-cleaning tanks containing 1000 L of continuously running water (15 fish/tank) and used in this ...
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Reproductive performance of silver catfish fed sorghum diets supplemented with phytase
... Abstract – The objective of this work was to evaluate the reproductive performance of silver catfish (Rhamdia quelen) fed diets containing sorghum, as a replacement for corn, supplemented or not with ...
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Immunomodulatory effects of dietary β-glucan in silver catfish (Rhamdia quelen)
... to silver catfish diet has been unequivocally demonstrated by challenging fish with an intraperitoneal injection of ...fact, silver catfish fed ...
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A mathematical model for growth in weight of silver catfish (Rhamdia quelen) (Heptapteridae, Siluriformes, Teleostei)
... When farmers invest on a specific fish species, they wish to know the time necessary for it to reach the slaughter stage and reproduction, so they may program their production and profit. Mathematical models can be used ...
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