Crescimento e sobrevivência de larvas do jundiá, Rhamdia quelen, alimentadas com alimento vivo enriquecido e dieta artificial

Borges, Pedro Gusmão; Dutra, Fabrício Martins; Ballester, Eduardo Luís Cupertino; Portz, Leandro

doi:10.4322/rbcv.2014.011

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…Studies with silver catfish larvae have been shown that, in order to obtain good growth and better survival rates, the presence of live food during first feeding of the fish is required (DIEMER et al, 2012;BORGES NETO et al, 2013). Thus, considering that the consumption of live organisms (zooplankton) is important for the development of silver catfish post-larvae (BALDISSEROTTO; RADÜNZ NETO, 2004), the use of a BFT system for larviculture of this species of fish may be advantageous.…”

Section: Discussionmentioning

confidence: 99%

“…It needs to be kept in mind that, although there is a large diversity of microorganisms in BFT waters, the heterotrophic bacteria are the major driving force of the system (DE SCHRYVER et al, 2008), which is not the preferred food of silver catfish larvae. In addition, the use of artificial diets, as the main source of food, has not shown good results of performance and survival in larviculture of this species (PIAIA; RADÜNZ NETO, 1997;BORGES NETO et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

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Growth and survival of silver catfish (Rhamdia quelen) post-larvae reared at different stocking densities in a biofloc system

Battisti¹,

Rabaioli²,

Hermes³

et al. 2021

Rev Agr Acad

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Biofloc technology (BFT) is an approach in aquaculture that has gained much interest and is currently widely being studied and applied. In this study, silver catfish (Rhamdia quelen) post-larvae were reared in a BFT system, at different stocking densities (10, 20, 30 and 40 post-larvae/L), for 21 days. After two weeks, fish larvae subjected to the higher stoking density showed greater weight gain. At the end of the trial (21 days), no relevant differences between treatments were observed related to growth parameters. However, post-larvae reared at the stocking density of 20 post-larvae/L presented a higher survival rate.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Growth and survival of silver catfish (Rhamdia quelen) post-larvae reared at different stocking densities in a biofloc system

Battisti¹,

Rabaioli²,

Hermes³

et al. 2021

Rev Agr Acad

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“…For Neotropical fishes there is no information regarding the PNR. According to Lima et al (2017), larvae of R. voulezi are highly specific in the choice of their prey, and therefore the survival and growth in hatchery systems verified by Borges Neto et al (2013) for R. quelen depend on the supply of live prey, because their larvae have difficulties assimilating artificial diets.…”

Section: Discussionmentioning

confidence: 99%

Effects of delayed first feeding on growth of the silver catfish larvae Rhamdia voulezi (Siluriformes: Heptapteridae)

et al. 2017

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The effects of the timing of first feeding on the point-of-no-return (PNR) and growth of laboratory reared silver catfish Rhamdia voulezi larvae were studied. The experiment began immediately after the complete absorption of the yolk sac, 3 days after hatching (DAH). , and 9 th DAH. Zooplankton and newly-hatched Artemia spp. were used to feed the larvae. To evaluate the effect of food deprivation on growth, the standard length and weight of 594 larvae were assessed. Larval growth was significantly affected by the time of first exogenous feeding. The larvae fed from 3 rd to 5 th DAH showed a significantly higher development than those fed from 6 th DAH. The larvae reached the PNR on 6 th DAH. Survival and larval growth strongly depended on the timing of initial feeding. In order to avoid potential mortality by starvation and obtain good growth, the silver catfish larvae R. voulezi must establish successful initial feeding within 5 days after hatching. Keywords

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The effect of fairy shrimp “branchoneta” (Dendrocephalus brasiliensis) as the initial diet of tambaqui postlarvae

Daltro

Macedo

Serafim-Júnior

et al. 2021

Acta Sci. Anim. Sci.

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The effect of fairy shrimp “branchoneta” as the first exogenous feed for tambaqui postlarvae was evaluated. A hundred and eighty larvae were distributed in 12 aquariums, containing 1.5L of water and the stocking density was 10 larvae per liter. The trials lasted for 20 days and postlarvae were submitted to three diets (T1: Commercial feed, T2: branchoneta, and T3: Commercial feed with branchoneta), with a completely randomized design with four replicates for each treatment. During the trials, the water quality parameters were kept within ideal conditions for the species. The tambaqui postlarvae submitted to T2 and T3 showed better survival rates respectively. Regarding the postlarval development, larvae fed with only branchoneta had a better final weight (3.48 mg), daily weight gain (0.14 mg day-1), and the best specific growth rate (8.62%). The results also showed that the tambaqui postlarvae fed with only commercial feed developed less efficiently due to lower rates of survival and growth. The present study indicates that the branchoneta promoted greater development and survival rates of the tambaqui postlarvae and therefore, it presents good potential as a live food for the species.

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Crescimento e sobrevivência de larvas do jundiá, Rhamdia quelen, alimentadas com alimento vivo enriquecido e dieta artificial

Cited by 3 publications

References 4 publications

Growth and survival of silver catfish (Rhamdia quelen) post-larvae reared at different stocking densities in a biofloc system

Growth and survival of silver catfish (Rhamdia quelen) post-larvae reared at different stocking densities in a biofloc system

Effects of delayed first feeding on growth of the silver catfish larvae Rhamdia voulezi (Siluriformes: Heptapteridae)

The effect of fairy shrimp “branchoneta” (Dendrocephalus brasiliensis) as the initial diet of tambaqui postlarvae

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