Short-term cycles of feed deprivation and refeeding promote full compensatory growth in the Amazon fish matrinxã (Brycon amazonicus)

Urbinati, Elisabeth Criscuolo; Sarmiento, Sherezada Jiménez; Takahashi, Leonardo Susumu

doi:10.1016/j.aquaculture.2014.06.030

Cited by 60 publications

(50 citation statements)

References 24 publications

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“…In other feed tests of matrinxã that used similar initial weight of juveniles and evaluation periods, but only commercial extruded feed (Arbelaez-Rojas et al 2011;Urbinati et al 2014) the growth performance of fish was better than in our study. The same discrepancy in growth rates was observed for juvenile tambaqui (Chagas et al 2013;Silva and Fujimoto 2015) in comparison with our results.…”

Section: Discussioncontrasting

confidence: 50%

“…Juvenile matrinxãs submitted to feed deprivation exhibited full compensatory growth in relation to animals fed daily by increasing feed intake and efficiency, leading to the conclusion that the use of intermittent cycles of feeding can be employed to reduce production costs (Urbinati et al 2014). In our experiment the animals were fed daily and the feed intake did not differ among the treatments.…”

Section: Discussionmentioning

confidence: 72%

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Seeds of sacha inchi (Plukenetia volubilis, Euphorbiaceae) as a feed ingredient for juvenile tambaqui, Colossoma macropomum, and matrinxã, Brycon amazonicus (Characidae)

2018

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Sacha inchi (Plukenetia volubilis) is a plant native to the Peruvian Amazon with seeds that contain 24 to 29% protein, and levels of vitamin A and E and omega 3 polyunsaturated fatty acids that are suitable for fish nutrition. Thus, this study aimed to evaluate the use of sacha inchi seeds as an ingredient in the diets of tambaqui (Colossoma macropomum) and matrinxã (Brycon amazonicus). The acceptance and effect of three levels of sacha inchi seed meal (0, 15 and 30%) in fish feed was evaluated in a randomized experiment, testing groups of 12 juvenile tambaquis (29.8 ± 1.0 g, 11.0 ± 1.4 cm) and groups of eight juvenile matrinxãs (34.8 ± 1.3 g, 13.7 ± 1.0 cm). Growth performance and body composition of the fish were determined at the end of the experiment. An effect of the sacha inchi diet was only observed for feed conversion of tambaquis, which was worst at the highest level of sacha inchi seed. In conclusion, sacha inchi can be added to feed juvenile tambaquis at a level of 15%, and juvenile matrinxãs at 30% without compromising growth performance and body parameters of the fish.KEYWORDS: alternative diet, growth performance, nutrition, fish Sementes de sacha inchi (Plukenetia volubilis, Euphorbiaceae) em rações para juvenis de tambaqui, Colossoma macropomum, e matrinxã, Brycon amazonicus (Characidae) RESUMOSacha inchi (Plukenetia volubilis) é uma planta nativa da Amazônia peruana cujas sementes contém 24-29% de proteína, além de vitamina A e E e ácidos graxos polinsaturados ômega 3 em níveis adequados para a nutrição de peixes. Dessa forma, este estudo teve como objetivo avaliar o uso de sementes de sacha inchi como ingrediente em rações para o tambaqui (Colossoma macropomum) e matrinxã (Brycon amazonicus). Níveis de inclusão de sacha inchi nas rações e aceitação foram avaliados em um delineamento experimental inteiramente aleatorizado, avaliando três grupos de 12 juvenis de tambaqui (29,8 ± 1,0 g; 11,0 ± 1,4 cm) e três grupos de oito juvenis de matrinxãs (34,8 ± 1,3 g; 13,7 ± 1,0 cm) alimentados com rações contendo 0, 15 ou 30% de farelo de sementes de sacha inchi. O crescimento e a composição corporal dos peixes foram avaliados ao final do experimento. Um efeito da ração com sacha inchi foi somente observado para a conversão alimentar de tambaquis, que foi pior no maior nível de semente de sacha inchi. Em conclusão, sacha inchi pode ser adicionada na alimentação de juvenis de tambaqui até o nível de 15% e na de juvenis de matrinxã até 30% sem comprometimento do desempenho e dos parâmetros corporais.

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Section: Discussioncontrasting

confidence: 50%

Section: Discussionmentioning

confidence: 72%

Seeds of sacha inchi (Plukenetia volubilis, Euphorbiaceae) as a feed ingredient for juvenile tambaqui, Colossoma macropomum, and matrinxã, Brycon amazonicus (Characidae)

2018

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“…Fish in group1 (control) were fed everyday, until satiation, and other groups were fed as follows: 2 days starvation /2 days refeeding (2DD2DRF) (15 cycles), 2 days starvation /3 days refeeding (2DD3DRF) (12 cycles), 2 days starvation/4 days refeeding (2DD4DRF) (10 cycles) for 60 days, three times a day (0900: 1300: 1700) until apparent satiation, respectively. This design is a modification of that used by (Urbinati, Sarmiento, & Takahashi, 2014). Furthermore, during the experiment continuous aeration, water recirculation, water temperature 28.8  0.36, pH = 7.8  0.36, DO 6.1  0.31 mgL -1 , Ammonia-Nitrogen free and photoperiod 12h light /dark cycle were maintained.…”

Section: Experimental Designmentioning

confidence: 99%

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Gabriel¹,

Omoregi²,

Martin³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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This study was designed to determine compensatory growth response of short-term starvation and refeeding cycles on Oreochromis mossambicus juveniles. A total of 360 juveniles were randomly divided into 12 tanks in triplicate groups. The control group (C) was fed three times a day to satiation. The feeding regimes of the other groups were designed as follows: 2 days deprivation /2 days refeeding (2DD2DRF), 2 days deprivation /3 days refeeding (2DD3DRF), and 2 days deprivation /4 days refeeding (2DD4DRF). After 60 days, only fish in 2DD4DRF group presented partial compensatory growth; no significant difference (P>0.05) was observed in the final weight (FW), and specific growth weight (SGR) compared to the control. Hepatosomatic index (HSI), viscerosomatic index (VSI), and condition factor (CF) was not affected by these feeding regimes. Furthermore, improved feed conversion ratio (FCR), and feed efficiency ratio (FER) were observed in 2DD4DRF fish, among groups. Feed intake (FI) was significantly lower (P<0.05) in starved fish compared to C. Meanwhile, muscle crude protein and lipid content in 2DD2DRF, and 2DD3DRF groups was significantly lower (P<0.05) compared to C and 2DD4DRF group. Compensatory growth response in 2DD4DRF presents possibilities for economic optimization in O. mossambicus production.

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“…Even though the metabolic rates in red muscle were higher than those in white muscle, the intensiveness of the experimental conditions were likely not enough to lead to significant changes in B. amazonicus. This may be attributed to the fact that, in this species, energetic stores are mobilized for seasonal changes in feeding (Urbinati et al, 2014). The evaluated conditions, however, changed the plasma levels of triglycerides and ammonia.…”

Section: Resultsmentioning

confidence: 90%

Sustained swimming mitigates stress in juvenile Brycon amazonicus reared in high stocking densities

Arbeláez-Rojas

Moraes

Nunes

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to evaluate the effect of stocking density associated with the swimming exercise on the stress responses of Brycon amazonicus. During 70 days, fish were subjected to three stocking densities: LD, low density of 88 fish per cubic meter; ID, intermediary density of 176 fish per cubic meter; and HD, high density of 353 fish per cubic meter. These densities were combined with static water (non-exercised group) or moderate-speed water (exercised group). Chronic stress was observed in HD, and plasma cortisol and glucose increased with the stocking densities. In HD, levels of plasma cortisol were significantly lower in exercised fish (135 ng mL ). The greatest hepatic glycogen bulks occurred in fish kept in ID and sustained swimming. Hepatic free amino acids (FAA) increased with the stocking density, particularly in non-exercised fish. The contents of FAA in the liver and of free fatty acids (FFA) in the liver and muscle were mobilized to meet the metabolic demands imposed by exercise and stocking density. The hematological parameters remained stable. The results show that Brycon amazonicus is more resistant to stress when subjected to sustained swimming and high stocking density than to static water. ). Os maiores acúmulos de glicogênio hepático ocorreram em peixes mantidos em DI e em natação sustentada. Os aminoácidos livres (AAL) hepáticos aumentaram com a densidade de estocagem, particularmente nos peixes não exercitados. As reservas de AAL hepáticos e de ácidos graxos livres hepáticos e musculares foram mobilizados para atender às demandas metabólicas impostas pelo exercício e pela densidade de estocagem. Os parâmetros hematológicos mantiveram-se estáveis. Os resultados são indicativos de que o matrinxã é mais resistente ao estresse quando submetido à natação sustentada e à alta densidade de estocagem que à água parada.Termos para indexação: bem-estar animal, piscicultura intensiva, respostas metabólicas, exercício físico.

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Short-term cycles of feed deprivation and refeeding promote full compensatory growth in the Amazon fish matrinxã (Brycon amazonicus)

Cited by 60 publications

References 24 publications

Seeds of sacha inchi (Plukenetia volubilis, Euphorbiaceae) as a feed ingredient for juvenile tambaqui, Colossoma macropomum, and matrinxã, Brycon amazonicus (Characidae)

Seeds of sacha inchi (Plukenetia volubilis, Euphorbiaceae) as a feed ingredient for juvenile tambaqui, Colossoma macropomum, and matrinxã, Brycon amazonicus (Characidae)

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Sustained swimming mitigates stress in juvenile Brycon amazonicus reared in high stocking densities

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