Selênio orgânico na alimentação de matrizes de tilápia-do-Nilo (Oreochromis niloticus)

Pereira, Thiago Scremin Boscolo; Fabregat, Thiago El Hadi Perez; Fernandes, João Batista Kochenborger; Boscolo, Camila Nomura Pereira; Castillo, Julian David Alvarado; Koberstein, Teresa Cristina Ribeiro Dias

doi:10.4025/actascianimsci.v31i4.6300

Cited by 8 publications

(9 citation statements)

References 7 publications

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“…In spite of the notorious influence of broodstock nutrition on breeding performance of males (Moraes et al, 2004), females (Ng & Wang, 2011) and offspring (Gunasekera et al, 1996;Pereira et al, 2009;Sink et al, 2010), broodstock nutrition is a not well known segment of nutrition in bony fishes (Izquierdo et al, 2001). This lack of information about the specific broodstock nutritional requirements in fish (Bhujel et al, 2001;Lupatsch et al, 2010) has driven the recent development in research studies on both tilapia (El-Gamal et al, 2007;Sink & Lochman, 2008;Sink et al, 2010;Ng & Wang, 2011) and other commercial freshwater (Parra et al, 2008;Navarro et al, 2010) and marine (FernandezPalacios et al, 1995;Mazzorra et al, 2003) fish cultures.…”

Section: Introductionmentioning

confidence: 99%

“…For that, improved nutrition, feeding and management of broodstock are essential tools (Bhujel et al, 2007), given that the nutrients used by females during vitellogenesis might impact both the quality and the chemical features of eggs (Tyler & Sumpter, 1996;Wiegand, 1996;Izquierdo et al, 2001) and consequently the progeny development (Pereira et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Growth of Nile tilapia post-larvae from broodstock fed diet with different levels of digestible protein and digestible energy

Sousa¹,

Freccia²,

Santos

et al. 2013

R. Bras. Zootec.

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-This study was carried out to evaluate the influence of different levels of digestible energy and digestible protein in diets of Nile tilapia (Oreochromis niloticus) broodstock on offspring growth during sex reversal stage. A total of 2,700 post-larvae (8.2±0.001 mg) derived from breeders fed nine diets with distinct levels of digestible protein (28, 34 and 40% DP) and digestible energy (2,800; 3,400; and 4,000 kcal DE.kg -1 ) were stored in twenty-seven 70 L tanks. After 30 days of growth, their average final weight (AFW, g), average weight gain (AWG, g), final standard length (SL, cm), condition factor (CF), specific growth rate (SGR, %/day), stock uniformity (UNI, %), survival (SUR, %) and sex reversal rate (SRR, %) were measured. Although female nutrition is thought to influence the performance or quality of progeny during early life stages, no influence of diets supplied to broodstock was detected on any parameter. Nonetheless, the offspring presented commercially satisfactory growth rates. Thus, diets containing 28% of digestible protein and 2,800 kcal of digestible energy.kg of diet -1 can be used to feed Nile tilapia broodstock without jeopardizing offspring performance during the sex reversal phase.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Growth of Nile tilapia post-larvae from broodstock fed diet with different levels of digestible protein and digestible energy

Sousa¹,

Freccia²,

Santos

et al. 2013

R. Bras. Zootec.

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“…Em tilápias-do-nilo (Oreochromis niloticus), benefícios da suplementação com selênio foram relatados no desempenho zootécnico e reprodutivo, bem como no desenvolvimento inicial da prole em animais suplementados com 0,4 a 0,5 mg kg -1 de selênio orgânico na dieta (Pereira et al, 2009;Fonseca et al, 2013).…”

Section: Introductionunclassified

“…A deficiência, por exemplo, causou menor atividade natatória e retenção de lipídeos em esturjão-branco (Acipenser transmontanus) (Tashjian et al, 2006), enquanto o excesso de selênio (100 e 200 mg kg -1 ) causou mortalidade, diminuição dos índices de crescimento e alterações histopatológicas tanto em esturjão-branco quanto em esturjão-verde (Acipenser medirostris) (Del Riu et al, 2014).…”

Section: Introductionunclassified

“…No tratamento com 1,0 mg kg -1 , ocorreram hipertrofia dos hepatócitos e presença de núcleos picnóticos deslocados para a periferia da célula (Figura 1 D), enquanto, no tratamento com 1,5 mg kg -1 , havia focos de necrose (Figura 1 E), congestão e presença de grânulos de glicogênio (PAS positivo), quando comparado aos tratamentos anteriores (Figura 1 F). A toxicidade do selênio em doses acima de 1,0 mg kg -1 já havia sido relatada em outras espécies de peixes, como esturjões (Tashjian et al, 2006;Del Riu et al, 2014) e paulistinha (Danio rerio) (Thomas et al, 2013), mas foi constatada pela primeira em tilápias-do-nilo.…”

Section: Introductionunclassified

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Histopatologia do fígado de tilápias-do-nilo suplementadas com selenometionina

Gomes

Cruz

Sakabe

et al. 2016

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o efeito dietário da selenometionina sobre a histopatologia do fígado de tilápia-do-nilo (Oreochromis niloticus). A selenometionina foi adicionada à dieta-base (sem suplementação) nas doses de 0,25, 0,50, 1,0 e 1,50 mg kg -1 , que consistiram em cinco tratamentos, com quatro repetições. Após 90 dias de experimento, foi observada degeneração lipídica no fígado dos animais que receberam a dieta sem suplementação, o que indica deficiência de selênio. No entanto, os animais que receberam acima de 1,0 mg kg -1 apresentaram hipertrofia, acúmulo de glicogênio, desarranjo cordonal, focos de necrose e degeneração lipídica no fígado. A incorporação de selênio é essencial para a nutrição de tilápias-do-nilo; porém, níveis acima de 1,0 mg kg -1 de selenometionina prejudicam o metabolismo hepático.Termos para indexação: Oreochromis niloticus, hepatócitos, micronutrientes, toxicidade. Histopathological alterations in liver of Nile tilapia supplemented with selenomethionineAbstract -The objective of this work was to evaluate the effects of selenomethionine supplementation on liver histopathology of Nile tilapia (Oreochromis niloticus). Selenomethionine was added to the base diet (without supplementation) at the concentrations of 0.25, 0.50, 1.0, and 1.50 mg kg -1 , which consisted of five treatments, with four replicates. After 90 days of experiment, hepatic lipid degeneration was observed in the liver of the animals that received diet without supplementation, indicating selenium deficiency. However, the animals that received above 1.0 mg kg -1 showed hypertrophy, glycogen accumulation, cordonal disarrangement, foci of necrosis and lipid peroxidation in the liver. Selenium is essential for Nile tilapia nutrition; however, concentrations above 1.0 mg kg -1 selenomethionine impair the liver metabolism.

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A Multi-objective Approach for Supply Chain Network Design: Tilapia Pisciculture in Paraná State - Brazil

Ramos

Fragoso

Feiden

2018

Journal of Agricultural &Amp; Food Industrial Organization

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Nowadays, efficient supply chain network design is a major issue, which becomes a greater challenge with the need to consider environmental and social concerns in decisions, besides economic issues. This paper develops a supply chain planning model based on a multi-objective framework that considers economic, social and environmental issues. The model is applied to the tilapia pisciculture supply chain in Brazil. A pay-off matrix is derived and an approximation of the Pareto frontier is built using the augmented ε-constraint method. Several non-dominated solutions are generated and analyzed in order to propose the preferable scenarios of supply chain network design.

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Selênio orgânico na alimentação de matrizes de tilápia-do-Nilo (Oreochromis niloticus)

Cited by 8 publications

References 7 publications

Growth of Nile tilapia post-larvae from broodstock fed diet with different levels of digestible protein and digestible energy

Growth of Nile tilapia post-larvae from broodstock fed diet with different levels of digestible protein and digestible energy

Histopatologia do fígado de tilápias-do-nilo suplementadas com selenometionina

A Multi-objective Approach for Supply Chain Network Design: Tilapia Pisciculture in Paraná State - Brazil

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