Induction time of anesthesia and recovery of benzocaine to patinga (<i>Piaractus mesopotamicus x Piaractus brachypomus</i>)

Rodrigues, Rômulo Batista; Melo, Iury Wallyson de Amorin; Rocha, Joana; Silva, Thibério Carvalho da; Bridi, Vinicius Ricardo Calcagno; Signor, Arcângelo Augusto; Bittencourt, Fábio; Boscolo, Wilson Rogério

doi:10.5935/1981-2965.20160030

Cited by 3 publications

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“…Sedation and recovery times observed in the present study were similar to those found in the literature for tainha juveniles (Mugil liza) (BRAZ et al, 2017), quinguio (Carassius auratus) (BITTENCOURT et al, 2012) and patinga (Piaractus mesopotamicus x P. brachypomus) (RODRIGUES et al, 2016). These authors describe times for sedation ranging from 2 to 11 minutes and recovery from 3 to 14 minutes.…”

Section: Resulsts and Discussionsupporting

confidence: 89%

“…The use of anesthetics is a viable alternative to reduce the stressful effects of day-to-day management practices in fish farms (ROSS and ROSS, 2008a;ZAHL et al, 2012;RIBEIRO et al, 2015). Among numerous existing anesthetics, benzocaine (ethyl p-aminobenzoate) is widely used in research centers and by some fish farmers due to the low cost and ease of acquiring and handling this product (SOUZA et al, 2012;RODRIGUES et al, 2016;BRAZ et al, 2017). Another anesthetic widely used is eugenol (4-Allyl-2-methoxyphenol), which has aroused interest because it is a natural product, originating from clove oil (ROTILI et al, 2012;HOSEINI et al, 2015;MIRGHAED et al, 2016;BRAZ et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Benzocaine and Eugenol as anesthetics for pangasius juveniles, Pangasianodon hypophthalmus

Leonardo¹,

Barros²,

Sampaio³

2022

Bol. Ind. Anim.

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The aim of this study was to evaluate the effect and efficacy of different concentrations of eugenol and benzocaine for pangasius juveniles (Pangasianodon hypophthalmus) and determine the anesthetic and concentration most appropriate for carrying out routine fish farming practices for this species. Onehundred juveniles with an average weight of 32.10 ± 4.9 g and an average total length of 15.32 ± 0.57 cm were used. Four concentrations of both anesthetics were evaluated: 0, 25, 50, 75 and 100 mg/L, with four induction time stages and three recovery stages. During the time that the fish remained anesthetized, biometric procedures were performed. Then, they were transferred to a 10-liter aquarium containing clean water, without adding the anesthetic to observe the recovery time. After recovery, the animals were kept in aquariums for 72 hours to check for mortality. Eugenol, at all concentrations evaluated, and benzocaine, at a concentration of 25 mg/L, were not effective in sedating juveniles of pangasius. Benzocaine concentrations of 75 and 100 mg/L were effective for anesthesia and recovery of fish within the time span of five andseven minutes. However, considering animal welfare, the use of a concentration of 100 mg/L is recommended, as it resulted in shorter latency and recovery times.

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Section: Resulsts and Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Benzocaine and Eugenol as anesthetics for pangasius juveniles, Pangasianodon hypophthalmus

Leonardo¹,

Barros²,

Sampaio³

2022

Bol. Ind. Anim.

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“…After the blood collection, all animals were measured and weighted, to determine the zoo-technical performance parameters, where it was obtained: average weight, total length, food conversion, standard length, weight gain, biomass gain, survival and specific growth rate. After the collections, all animals were euthanized with a super dose of benzocaine at 300 mg L -1 (RODRIGUES et al, 2016) and stored in freezers, where they were later processed for bromatological analysis.…”

Section: Methodsmentioning

confidence: 99%

Effect of different stocking densities and vitamin c supplementation for piaractus mesopotamicus / Efeito das diferentes densidades de estoquecimento e fornecimento de vitamina c para piaractus mesopotamicus

Baumgartner¹,

Siqueira²,

Nienkoetter³

et al. 2022

BJDV

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The objective was to evaluate the effects of stocking density and vitamin C supplementation under the zoo-technical, blood and bromatological parameters of juvenile Piaractus mesopotamicus. A hundred and eighty fish (10.64±1.26g) were randomly distributed in 24 boxes and two stocking densities (0.89 and 1.77kg/m³), fed for with commercial feed (60 days), supplemented with three levels of vitamin C (0, 0.5, and 1.5 g/kg of feed), in a 2x3 factorial scheme, with four repetitions. At the end of the experiment, all fish were anesthetized to collect the zoo-technical data. Three animals from each repetition were selected for blood collection, and then, all animals were euthanized and processed to determine the bromatological parameters. There was interactive effect between the vitamin C levels and the stocking densities in the blood hematological parameter and in the carcass crude protein (p0.05). There was no effect of the vitamin C supplementation levels for the evaluated zoo-technical, hematological and bromatological parameters. The density influenced on the weight gain, average final weight, specific growth rate, total and standard length. It is concluded that the vitamin C did not present alteration in the studied variables, however, the recommended stocking density for the species in this study is 0.89 kg/m³.

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“…The data was used to determine mean final weight (FW) = (wet final weight in g -wet initial weight in g); weight gain (WG) = (wet final weight in g -wet initial weight in g); specific growth rate (SGR) = ((Ln (wet final weight in g) -Ln (wet initial weight in g) / times in day) x 100); survival rate (SR) = ((fish final number/fish initial number)*100); Feed efficiency (FE) = (wet weight gain in g / feed intake in g); Protein efficiency rate (PER) = (wet weight gain in g/ intake protein in g); and condition factor (CF) = ((mean final weight in g/(mean body length in cm at cube elevated))*100). For chemical composition of the fish carcass analysis of dry matter (DM), mineral matter (MM), protein, and lipid content was realized in three fish per experimental unit euthanized by 300 mg L-1 benzocaine solution (RODRIGUES et al, 2016) and maintained at -20°C in the Laboratory for Food Quality (Unioeste), in accordance with the AOAC (2005).…”

Section: Ingredientsmentioning

confidence: 99%

Lisina em dietas para alevinos de carpa comum

et al. 2017

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O presente estudo teve por objetivo determinar a exigência de lisina para alevinos de carpa comum (Cyprinus carpio). Foram distribuídos inteiramente ao acaso 280 alevinos de carpa comum com peso e comprimento inicial médio de 0,62 ± 0,05 g e 3,38 ± 0,11 cm, respectivamente, em 28 tanques-rede quadrados com volume útil de 150 litros, dispostos no interior de um tanque circular de alvenaria com capacidade para 25 m 3 de água (sete tratamentos e quatro repetições). Os peixes foram alimentados até a saciedade aparente quatro vezes ao dia com dietas isproteicas e isoenergéticas suplementadas com lisina nas concentrações de 1,58; 1,81; 2,05; 2,29; 2,53; 2,76 e 3,0% da dieta por 57 dias. Ao final do estudo foi avaliado o desempenho produtivo, sobrevivência e composição centesimal da carcaça dos peixes. Os dados obtidos foram submetidos a análise de regressão (p<0,05) e ao teste múltiplo de média Tukey. A análise do platô de resposta linear (LRP) foi aplicado adicionalmente. A suplementação de lisina melhorou (p<0,05) o peso final médio, ganho de peso médio e taxa de crescimento específico e a partir de 2,29% de suplementação de lisina na dieta prejudicou a eficiência alimentar dos peixes. A exigência de lisina para alevinos de carpa comum é de 1,89% da dieta ou 4,73% da proteína bruta para obtenção do melhor crescimento.Palavras-chave: aminoácidos; nutrientes; exigências; ração. ABSTRACTThe aim of the present study was to determine the lysine requirement of common carp fingerlings. Two hundred and eighty common carp fingerlings, with mean weight and mean length initial of 0.62 ± 0.05 g and 3.38 ± 0.11 cm, respectively were randomly distributed into 28 squares net cages of 150 litres arranged inside a masonry circular tank with water capacity of 25 m -3 (seven treatments and four replications). The fish were fed until apparent satiation, four times per day, with isoproteic and isoenergetic diets supplemented with lysine at 1.58, 1.81, 2.05, 2.29, 2.53, 2.76, and 3.0% of the diet for 57 days. Productive performance, survival rate, and chemical composition of the fish body were evaluated at the end of the study. The data obtained was subjected to regression analysis and, when significantly different (P<0.05), the Tukey multiple comparison test was used. Additionally, linear response plateau (LRP) analysis was performed. Lysine supplementation significantly improved (P<0.05) mean final weight, mean weight gain, and specific growth rate. However, lysine levels above 2.29% compromised the feed efficiency. Lysine requirements of common carp fingerlings were found to be 1.89% of the diet or 4.73% of the crude protein in the diet for obtain better growth.

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Induction time of anesthesia and recovery of benzocaine to patinga (Piaractus mesopotamicus x Piaractus brachypomus)

Cited by 3 publications

References 0 publications

Benzocaine and Eugenol as anesthetics for pangasius juveniles, Pangasianodon hypophthalmus

Benzocaine and Eugenol as anesthetics for pangasius juveniles, Pangasianodon hypophthalmus

Effect of different stocking densities and vitamin c supplementation for piaractus mesopotamicus / Efeito das diferentes densidades de estoquecimento e fornecimento de vitamina c para piaractus mesopotamicus

Lisina em dietas para alevinos de carpa comum

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