Processo de maturação das gônadas de pintado (Pseudoplatystoma corruscans) alimentado com dois níveis proteicos e suplementados com óleo de milho

Andrade, Vanessa Xavier Linhares de; Honji, Renato Massaaki; Romagosa, Elizabeth

doi:10.1590/s0102-09352010000200013

Cited by 9 publications

(19 citation statements)

References 14 publications

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“…In total, 109 females and three males were identified. The predominance of females in this study supports the findings of Batlouni, Romagosa and Botella () and Andrade, Honji and Romagosa (). These animals were acquired with approximately 15 cm.…”

Section: Average Weight Before (W1) During (W2) and After (W3) Coelisupporting

confidence: 92%

Coelioscopy technique for gender in surubim hybridPseudoplatystoma corruscans × Pseudoplatystoma reticulatum

Chaves¹,

Gheller²,

Teixeira

et al. 2013

Aquac Res

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Section: Average Weight Before (W1) During (W2) and After (W3) Coelisupporting

confidence: 92%

Coelioscopy technique for gender in surubim hybridPseudoplatystoma corruscans × Pseudoplatystoma reticulatum

Chaves¹,

Gheller²,

Teixeira

et al. 2013

Aquac Res

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“…These studies evaluated, for instance: (1) the reproductive cycle or reproductive performance of fish in captivity (Izquierdo et al, 2001); (2) larval, juvenile, and adult nutrition (Sargent et al, 1995(Sargent et al, , 1999Izquierdo et al, 2001;Andrade et al, 2010;Araújo et al, 2012); (3) smoltification (Björnsson et al, 2011); (4) trophic interrelationship (Lowe-McConnell, 1999;Bittar et al, 2012); and (5) effects of pollutants on energetic substrates (Lima et al, 2011;Vieira et al, 2013). Besides, in several fish species that are candidates for aquaculture, deposition of adequate energetic substrates in the tissues, as liver and ovaries, are essential for a good reproductive performance, successful egg mass, and fingerling production (Fernández-Palacios et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Mobilization of energetic substrates in the endangered catfish Steindachneridion parahybae (Siluriformes: Pimelodidae): changes in annual reproductive cycle in captivity

et al. 2018

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This study aimed at analyzing the energetic substrate (ES) in the main storage tissues of Steindachneridion parahybae, throughout the reproductive cycle in captivity. Differently from wild, in captivity, feeding is not interrupted during the reproductive period, the females do not spawn spontaneously, and they are sedentary. Adult females were sampled monthly and based on their histology and gonadosomatic index (GSI), ovaries were classified into: previtellogenic (PRV), vitellogenic (VTG), and regression (REG) stages. Ovaries at the VTG stage showed higher protein and lipids levels than at the PRV stage with a positive correlation between these substrates and the GSI. Muscle was the main source of proteins transferred to the ovaries, according to the negative correlation between these organs. Lipids remained unchanged in the liver, which is an important supplier in vitellogenesis, a pattern that probably occurs due to the continuous feeding. Muscular glycogen levels were higher at the VTG and REG than at the PRV stages. Plasma triglycerides were also higher during REG, while glucose levels were more elevated during the VTG stage. These results suggest that with constant food supply, the pattern of deposition of ES in S. parahybae is different from that described for other wild potamodromous species.Keywords: Glycogen, Lipids, Metabolic substrate, Protein, Reproductive cycle.O objetivo deste estudo foi analisar a composição do substrato energético (SE) nos principais tecidos de armazenamento de Steindachneridion parahybae, durante todo o ciclo reprodutivo em cativeiro. Diferentemente do ambiente natural, em cativeiro, a alimentação desses animais não é interrompida durante o período reprodutivo, as fêmeas não desovam espontaneamente, e são sedentárias. Fêmeas adultas foram amostradas mensalmente e baseada na histologia e no índice gonadossomático (IGS), os ovários foram classificados: estádios pré-vitelogênico (PRV), vitelogênico (VTG) e regressão (REG). Os ovários no estádio VTG apresentaram uma maior concentração de lipídeos e proteínas em relação ao estágio PRV. Esses substratos correlacionaram-se positivamente com o IGS. O músculo foi a principal fonte de proteína transferida aos ovários, como foi confirmado pela análise de correlação negativa entre esses órgãos. Os lipídeos mantiveram-se inalterados no fígado, considerado um importante órgão fornecedor de lipídeos para a vitelogênese, padrão que possivelmente ocorreu devido à contínua alimentação. A concentração do glicogênio muscular foi mais elevada durante os estágios VTG e REG em relação ao PRV. A concentração de triglicerídeos plasmática apresentou maiores valores no estádio REG enquanto a concentração de glicose no plasma foi maior durante os estádios VTG. Esses resultados sugerem que com alimentação constante, as fêmeas de S. parahybae apresentam um distinto padrão de mobilização dos substratos energéticos em relação ao que já foi descrito para outras espécies potamódromas de ambiente natural. Palavras-chaves:Ciclo reprodutivo, Glicogênio, Lipídeos, P...

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“…In fish, the liver plays an important role in females because during reproduction, this organ mobilizes food reserves for the production of vitellogenin (El-Sayed and Kawanna, 2007;Tsadik and Bart, 2007;Andrade et al, 2010). In this sense, the liver can be used as a body indicator of the nutritional or reproductive physiological status of fish (Caballero et al, 1999).…”

Section: Resultsmentioning

confidence: 99%

Essential oils in the initial phase of broodstock diets of Nile tilapia

et al. 2014

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-This study evaluated the effect of feed supplementation (at doses of 0, 50, 100, 150, and 200 mg/kg) with SALUTO ® , a microencapsulated blend of essential oils including carvacrol, cinnamaldehyde, 1,8-cineol, and pepper oleoresin, in Nile tilapia (Oreochromis niloticus) broodstock on reproductive and growth parameters during the initial phase of rearing. The growth parameters, somatic indexes and gonadal and hepatic parameters were analyzed. Quantitative parameters of growth, ovary fat and crude protein were not affected by supplementation of the additive. However, an increase in crude protein in the female liver was observed in correlation with increased essential oil levels. The female hepatosomatic index was also correlated with supplementation of essential oils. Feeding Nile tilapia broodstock diets containing an essential oil compound (SALUTO ® ) affects only the females, promoting an increase in liver protein inclusion and hepatosomatic index without impairing performance.

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Processo de maturação das gônadas de pintado (Pseudoplatystoma corruscans) alimentado com dois níveis proteicos e suplementados com óleo de milho

Abstract: Processo de maturação das gônadas de pintado (Pseudoplatystoma corruscans) alimentado com dois níveis proteicos e suplementados com óleo de milho

Cited by 9 publications

References 14 publications

Coelioscopy technique for gender in surubim hybridPseudoplatystoma corruscans × Pseudoplatystoma reticulatum

Coelioscopy technique for gender in surubim hybridPseudoplatystoma corruscans × Pseudoplatystoma reticulatum

Mobilization of energetic substrates in the endangered catfish Steindachneridion parahybae (Siluriformes: Pimelodidae): changes in annual reproductive cycle in captivity

Essential oils in the initial phase of broodstock diets of Nile tilapia

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