Crescimento e sobrevivência do catfish de canal (Ictalurus punctatus sp) e jundiá (Rhamdia sp) no outono-inverno do Rio Grande do Sul

Souza, L S; Pouey, Juvêncio Luís Osório Fernandes; Camargo, S; Vaz, Bernardo dos Santos

doi:10.1590/s0103-84782005000400022

Cited by 13 publications

(12 citation statements)

References 9 publications

(3 reference statements)

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“…Jundia feeds well on artificial food and corn grains and might compete for food with NT and CC; however, no negative effect was observed in these species with JN introduction. The growth performance of JN in this work was better than that reported previously (Barcellos, Kreutz, Quevedo, Fioreze, Soso, Cericato, Fagundes, Conrad, Baldissera, Bruschi & Ritter 2004; Souza, Pouey, Camargo & Vaz 2005), including in polyculture (Silva et al 2006).…”

Section: Discussioncontrasting

confidence: 71%

Introduction of jundia Rhamdia quelen (Quoy & Gaimard) and Nile tilapia Oreochromis niloticus (Linnaeus) increases the productivity of carp polyculture in southern Brazil

Silva¹,

Barcellos²,

Quevedo³

et al. 2008

Aquaculture Res

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Fish polyculture is based on the assumption that each species has its own feeding niche and may increase the maximum standing crop of a pond by exploring a wider range of available food and ecological niches. In order to identify the better species ratio and to introduce jundia (JN) (Rhamdia quelen Quoy & Gaimard) and Nile tilapia (NT) (Oreochromis niloticus Linnaeus) in to the carp polyculture practiced in South Brazil, a 162-day experiment was conducted, in 12 250-m 2 earthen ponds (1.2 m deep).

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Section: Discussioncontrasting

confidence: 71%

Introduction of jundia Rhamdia quelen (Quoy & Gaimard) and Nile tilapia Oreochromis niloticus (Linnaeus) increases the productivity of carp polyculture in southern Brazil

Silva¹,

Barcellos²,

Quevedo³

et al. 2008

Aquaculture Res

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“…The temperature was also within thermal comfort limits (15-34°C) for R. quelen fry as recommended by Gomes, Golombieski, Gomes, and Baldisserotto (2000) and Bittencourt et al (2018). Values of dissolved oxygen above 4.3 mg/L are recommended for a better growth of catfish (Ictalurus punctatus and R. quelen) according to Souza, Pouey, Camargo, and Vaz (2005) and R. quelen fry (Bittencourt et al, 2018) and in this study, the dissolved oxygen remained above this values. The pH of the two systems was within the recommended limits for juvenile catfish (Rhamdia quelen), which ranges from 5.0 to 9.0 (Zaions & Baldisserotto, 2000).…”

Section: Sector Of Southern Brazil and Trade S/a (Bsbios) Passo Fundsupporting

confidence: 72%

Crude glycerol inclusion in diets for post‐larvae Rhamdia voulezi and Rhamdia branneri

et al. 2019

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Brazilian freshwater fish production has increased over the years (FAO, 2018). Brazilian native species of the genus Rhamdia have great potential for fish farming because they can withstand cold winters and grow fast in the summer. These characteristics make them suitable for fish production in the South of Brazil (Diemer et al., 2012).The catfish Rhamdia voulezi and Rhamdia branneri are endemic from the Iguaçu River basin and belong to the class Osteichthyes, the order Siluriformes and the family Heptapteridae (Boockmann & Guazzelli, 2003).Studies on the nutrition of these species are essential to estimate their nutritional requirements at different life stages. A variety of by-products have been studied and tested as alternative feed sources, including crude glycerol, a by-product derived from biodiesel production. Moreover, crude glycerol has been tested in recent years as a substitute energy source to corn in the diets of poultry, pork and fish (Shields, Van Heugten, Lin, Odle, & Stark, 2011).Studying the inclusion of glycerol in the nutrition of post-larvae (R. voulezi and R. branneri) is important for enabling the use of an alternative energy source in diets, with a focus on reducing the costs of feed (Abdalla, Silva Filho, Godoi, Carmo, & Eduardo, 2008). This study aimed to evaluate the replacement of corn with crude glycerol as an energy source on performance and body composition of R. voulezi and R. branneri post larvae.Two experiments were carried out simultaneously at the Laboratory of Technology for Reproduction of Cultivated Aquatic Animals (Latraac) of Unioeste, Campus Toledo, during 60 days. The Rhamdia voulezi and Rhamdia branneri with 0.01 ± 0.001 g (SD) were randomly distributed into five treatments with three replicates each, at a density of 5 post larvae/L, totalling 30 tanks of 60 L each.The experiment was carried out in a water recirculation system with biofilters. The water temperature and dissolved oxygen were measured twice a day, and the pH was measured weekly. Water physicochemical parameters were within normal limits for the studied species (Baldisserotto & Radunz Grandson 2004), with mean temperatures of 26 ± 1.1°C for R. voulezi and R. branneri respectively. The mean dissolved oxygen and the standard deviation were 7.60 ± 0.8 mg/L for R. voulezi and 8.04 ± 0.8 mg/L for R. branneri, whereas the mean pH was 7.67 ± 0.06 for R. voulezi and 7.82 ± 0.05 for R. branneri.The treatments consisted of five inclusion levels of crude glycerol (0, 2.2, 4.4, 6.6 and 8.8%). The animals were fed until apparent satiation three times per day. Tanks were siphoned every morning to remove faeces and feed residues. Crude glycerol was supplied by Biodiesel Sector of Southern Brazil and Trade S/A (BSBIOS), Passo Fundo -RioGrande do Sul, Brazil. Five isoproteic and isoenergetic diets containing 38.6% and 3,600 kcal/kg were formulated (Table 1). The digestibility values used for diet formulation were proposed by Boscolo, Hayashi, and Meurer (2002) and Meurer, Hayashi, and Boscolo (2003).At the end of the exp...

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“…Jundiás de igual classe de peso aos do presente trabalho criados no outonoinverno (temperatura média 18ºC) apresentam TCE de 0,63% dia -1 (SOUZA et al, 2005). Juvenis de jundiá de menor tamanho (1-15g), alimentados com dietas práticas semelhantes às deste estudo, têm TCE de 3 a 4,9% dia -1 (COLDEBELLA & RADÜNZ NETO, 2002;LAZZARI et al, 2006).…”

Section: Resultsunclassified

Alimentação do jundiá com dietas contendo óleos de arroz, canola ou soja

et al. 2008

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Crescimento e sobrevivência do catfish de canal (Ictalurus punctatus sp) e jundiá (Rhamdia sp) no outono-inverno do Rio Grande do Sul

Abstract: Growth and survival of channel catfish (Ictalurus punctatus) and silver catfish (Rhamdia sp) through autumn-winter in Rio Grande do Sul, Brazil

Cited by 13 publications

References 9 publications

Introduction of jundia Rhamdia quelen (Quoy & Gaimard) and Nile tilapia Oreochromis niloticus (Linnaeus) increases the productivity of carp polyculture in southern Brazil

Introduction of jundia Rhamdia quelen (Quoy & Gaimard) and Nile tilapia Oreochromis niloticus (Linnaeus) increases the productivity of carp polyculture in southern Brazil

Crude glycerol inclusion in diets for post‐larvae Rhamdia voulezi and Rhamdia branneri

Alimentação do jundiá com dietas contendo óleos de arroz, canola ou soja

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