Produção do híbrido "cachadia" em diferentes densidades de estocagem em sistema de recirculação de água

Faria, Paulo Eustáquio de; Luz, Ronald Kennedy; Prado, S. A.; Turra, Eduardo Maldonado; Jorge, Thiago Bernardes Fernandes; Lana, Ângela Maria Quintão; Teixeira, Edgar de Alencar

doi:10.1590/s0102-09352011000500023

Cited by 5 publications

(4 citation statements)

References 12 publications

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“…The values did not exceed 0.25 mg/l and 0.30 mg/l, respectively. All of these values are acceptable for raising tropical fish (FARIA et al, 2011).…”

Section: Raising Systems and Water Qualitymentioning

confidence: 95%

Blood chemistry profile of Surubim hybrid fish (Pseudoplatystoma reticulatum X P. corruscans) raised in different stocking densities

et al. 2013

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Massive production, such as fish growing in water recirculation system, imposes challenges to animals capable of altering their homeostatic balance, and is able to affect their physiological performance. Therefore, the levels of ions and serum enzymes can be used as indicators of fish health. This study aimed to analyze the blood biochemistry profile of hybrid surubim (P. reticulatum X P. corruscans) submitted to different stocking densities in water recirculation system, in two distinct stages of production, from 150 to 400 g (first trial), and 400 to 1000 g (second trial). In the first trial, the five stocking rates were: 27.5, 47.5, 67.5, 87.5 and 107.5 fish/m 3 of water. To obtain these densities, it was used 11, 19, 27, 35 and 43 fish per tank, respectively. In the second trial, five stocking rates were: 10, 20, 30, 40 and 50 fish/m 3 of water. To obtain these densities we used 4, 8, 12, 16 and 20 fish per tank, respectively. The concentrations of glucose, cholesterol, triglycerides, urea, creatinine, alkaline phosphatase (ALP), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), calcium, phosphorus, potassium and magnesium were obtained. Only urea concentrations in first trial and ALP and AST concentrations in second trial were influenced by stocking density, presenting a significant difference between groups. Thus, in both trials the hybrid fish studied maintained homeostasis when reared in different stocking densities.Index terms: Fish, hybrid, plasma biochemistry. RESUMODentre os sistemas de produção, o de recirculação de água impõe desafios para os animais que podem ser capazes de alterar o seu equilíbrio homeostático, afetando o índice de desempenho. Por conseguinte, os níveis de ions e enzimas séricas podem ser utilizados como indicadores de saúde dos peixes. Neste estudo, objetivo-se analisar o perfil de bioquímico do sangue do híbrido de Surubim (P. reticulatum X P. corruscans), submetido a diferentes densidades de estocagem em sistema de recirculação de água, em duas fases distintas de produção, de 150 a 400 g (primeiro ensaio) e, 400 a 1000 g (segundo ensaio). No primeiro ensaio, as cinco densidades de estocagem estudadas foram: 27,5, 47,5, 67,5, 87,5 e 107,5 peixes/m 3 de água. Para a obtenção dessas densidades foram utilizados 11, 19, 27, 35 e 43 peixes por tanque, respectivamente. No segundo ensaio, as cinco densidades de estocagem estudadas foram: 10, 20, 30, 40 e 50 peixes/m3 de água. Para a obtenção dessas densidades foram utilizados 4, 8, 12, 16 e 20 peixes por tanque, respectivamente. As concentrações de glicose, colesterol, triglicérides, ureia, creatinina, fosfatase alcalina (FA), aspartato aminotransferase (AST), desidrogenase lática (LDH), cálcio, fósforo, potássio e magnésio foram avaliadas. Apenas as concentrações de ureia no primeiro ensaio e FA e AST no segundo ensaio foram influenciadas pela densidade de estocagem, apresentando uma diferença significativa entre os grupos. Assim, em ambos os ensaios, o Surubim híbrido manteve a homeostase do sangue em diferentes...

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“…The values did not exceed 0.25 mg/l and 0.30 mg/l, respectively. All of these values are acceptable for raising tropical fish (FARIA et al, 2011).…”

Section: Raising Systems and Water Qualitymentioning

confidence: 95%

Blood chemistry profile of Surubim hybrid fish (Pseudoplatystoma reticulatum X P. corruscans) raised in different stocking densities

et al. 2013

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“…However it's underutilization of the space can reduce the efficiency of production (Gonçalves Junior et al, 2014;Dias et al, 2016). Furthermore, the use of inappropriate stocking densities may lead to increase competition for space, food and oxygen (Faria et al, 2011), reduce water quality and resulted on a chronic stress response which can, consequently, cause fish growth impairment (Gonçalves Junior et al, 2013;Abe et al, 2016). Thus, determining the adequate stocking density for each species and life stage is fundamental to optimize productivity, without compromising animal welfare and growth (Abe et al, 2019).…”

Section: /8mentioning

confidence: 99%

Salinized water as a strategy for increase stocking density in Heros severus larviculture, an Amazonian ornamental fish

Oliveira¹,

Silveira²,

Nascimento³

et al. 2023

Bol. Inst. Pesca

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The aim of this study was to evaluate the effect of different salinized water (0, 3 and 6 g L-1) and stocking densities (10, 15 and 20 larvae L-1) in Heros severus larviculture. The experimental design was completely randomized, in a 3x3 factorial design, with three replicates. For this, a total of 405 larvae of H. severus were randomly distributed in 27 aquariums (1L) according to the treatments and after 15 days all the larvae were measured, weighed and counted. Higher values for final length, length gain and specific growth rate were observed in H. severus larvae raised at any stocking density tested at 3 g L-1 of salinized water (p < 0.05). The final weight and weight gain followed the same trend of the length, being higher in fish submitted to 3 g L-1 of salinized water (p < 0.05). On the other hand, the salinized water of 6 g L-1 was detrimental to larvae weight uniformity and survival rate (p < 0.05). The fish stocked at densities of 15 or 20 larvae L-1 presented the best results of final weight and weight gain (p < 0.05). The stocking density of 20 larvae L-1 in salinized water at 3 g L-1 is recommended for H. severus larviculture.

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“…The superiority of Pseudoplatystoma hybrids is generally accepted among fish farmers; nonetheless, it can be controversial when some scientific data are considered; for example, the growth performance of the hybrid is superior to the parental spotted sorubim (Crepaldi et al ., 2003), but the growth performance and the morphometric traits of the same hybrid over the juvenile phase were similar to the parental barred sorubim (Fantini et al ., 2019). Nonetheless, the rearing of hybrids is increasing among fish farmers not only for the growth characteristics but also for the possibilities of selecting strains with better survival rates and other pertinent, zootechnical indices (Empresa Brasileira de Pesquisa Agropecuária, 2015; Faria et al ., 2011). To date, few research studies have been done to understand or even to describe the morphophysiological differences between pure species and their hybrids.…”

Section: Days After Fertilization (Daf) 0 2 4 6 8 10 12mentioning

confidence: 99%

Ontogeny of the digestive system and the profile of proteases in larvae of cachara (Pseudoplatystoma reticulatum Siluriformes: Pimelodidae) and its hybrid (Pseudoplatystoma corruscans × Pseudoplatystoma reticulatum)

Mello

Lundstedt

Moraes

et al. 2021

Journal of Fish Biology

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The development of the digestive system and digestive proteases was studied in cachara (Pseudoplatystoma reticulatum) and its hybrid (P. reticulatum × Pseudoplatystoma corruscans) during the first 25 days after fertilization. Both groups presented a fast and similar development of the digestive system, and the unspecific alkaline protease profile suggested that the digestive capacity of hybrid larvae is higher than that of cachara after the last half of the studied phase. The activities of trypsin and chymotrypsin were similar and observed since the oocyte. These observations suggested that cachara and its hybrid has similar digestive capacity and digestive system development.

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Produção do híbrido "cachadia" em diferentes densidades de estocagem em sistema de recirculação de água

Cited by 5 publications

References 12 publications

Blood chemistry profile of Surubim hybrid fish (Pseudoplatystoma reticulatum X P. corruscans) raised in different stocking densities

Blood chemistry profile of Surubim hybrid fish (Pseudoplatystoma reticulatum X P. corruscans) raised in different stocking densities

Salinized water as a strategy for increase stocking density in Heros severus larviculture, an Amazonian ornamental fish

Ontogeny of the digestive system and the profile of proteases in larvae of cachara (Pseudoplatystoma reticulatum Siluriformes: Pimelodidae) and its hybrid (Pseudoplatystoma corruscans × Pseudoplatystoma reticulatum)

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