Consumo de oxigênio pós-prandial de juvenis do pampo Trachinotus marginatus

Cunha, Viviana Lisboa da; Rodrigues, Ricardo Vieira; Okamoto, Marcelo Hideo; Sampaio, Luís André

doi:10.1590/s0103-84782009005000038

Cited by 9 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Riche et al (2004) found that feeding frequency is strongly influenced by time of gastric evacuation, which is useful for assessing appetite return and, therefore, can be used as a tool to estimate proper feeding frequency (Lee et al, 2000). Cunha et al (2009) suggested that the process of digestion and assimilation of food by juvenile pompano lasts for 2.5 hours, corresponding exactly to 8 times a day as observed in the present study. According to these results, it seems appropriated to feed juvenile pompano 8 times a day.…”

Section: Methodssupporting

confidence: 88%

“…The optimal feeding rate found for juvenile pompano (8% body weight per day) was high when compared to those reported for others subtropical species, such as Sparus aurata (Mihelakakis et al, 2002), Paralichthys olivaceus (Kim et al, 2007), and Limanda ferruginea (Puvanendran et al, 2003), of 2.3, 2.6, and 3.0% body weight per day, respectively. The feeding rate of juvenile pompano seems to be closer to values found for tropical fish, including Clarias gariepinus (8% body weight per day) (Marimuthu et al, 2011) and Colossoma macropomum (10% body weight per day) (Silva et al, 2007), which is probably due to the high metabolism of T. marginatus (Cunha et al, 2009).…”

Section: Methodssupporting

confidence: 65%

“…Several researches have been conducted to assess the culture of this species (Sampaio et al, 2003;Chaves et al, 2006;Cunha et al, 2009;Okamoto et al, 2009;Kütter et al, 2012Kütter et al, , 2013.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Feeding rate and frequency on juvenile pompano growth

Cunha

Shei

Okamoto

et al. 2013

Pesq. agropec. bras.

Self Cite

View full text Add to dashboard Cite

-The objective of this work was to evaluate the ideal feeding rate and frequency for juvenile pompano (Trachinotus marginatus). Two experiments were carried out in a completely randomized design, with three replicates each. In experiment I, 25 fish (4.8±0.6 g and 6.48±0.01 cm) were stocked in 15 tanks (50 L) during 21 days and fed 4, 8, 12, 16, and 20% body weight per day. In experiment II, 20 fish (4.1±0.1 g and 6.6±0.1 cm) were stocked in 15 tanks (40 L) during 28 days and fed 2, 6, 8, and 10 times a day. The tested feeding rates and frequencies did not influence survival. Final weight and length in experiment I were significantly lower in fish fed 4% body weight per day, whereas in experiment II only weight was significantly lower in fish fed 2 and 6 times a day. At the end of both experiments, apparent feed conversion showed significant difference, with the worst value observed for fish fed 20% body weight per day in experiment I and 2 times a day in experiment II. Juvenile pompano show better growth performance when fed 8% body weight per day and 8 times a day.Index terms: Trachinotus marginatus, feed management, marine fish culture. Taxa e frequência alimentar no crescimento de juvenis de pampoResumo -O objetivo deste trabalho foi avaliar a taxa e a frequência alimentar ideal para juvenis de pampo (Trachinotus marginatus). Foram conduzidos dois experimentos, em delineamento inteiramente casualizado, com três repetições cada um. No experimento I, 25 peixes (4,8±0,6 g e 6,48±0,01 cm) foram estocados em 15 tanques (50 L) durante 21 dias e alimentados com 4, 8, 12, 16 e 20% da biomassa total por dia. No experimento II, 20 peixes (4,1±0,1 g e 6,6±0,1 cm) foram estocados em 15 tanques (40 L) durante 28 dias e alimentados 2, 6, 8 e 10 vezes por dia. As taxas e as frequências alimentares testadas não influenciaram a sobrevivência. O peso e o comprimento finais no experimento I foram significativamente menores nos peixes alimentados com 4% da biomassa total por dia, enquanto, no experimento II, somente o peso foi significativamente menor nos peixes alimentados 2 e 6 vezes por dia. Ao final dos dois experimentos, a conversão alimentar aparente apresentou diferença significativa, com pior valor observado nos peixes alimentados com 20% da biomassa total por dia, no experimento I, e 2 vezes por dia no experimento II. Juvenis de pampo apresentam melhor desempenho de crescimento quando alimentados com 8% da biomassa total por dia e oito vezes por dia.Termos para indexação: Trachinotus marginatus, manejo alimentar, piscicultura marinha.

show abstract

Section: Methodssupporting

confidence: 88%

Section: Methodssupporting

confidence: 65%

See 1 more Smart Citation

Feeding rate and frequency on juvenile pompano growth

Cunha

Shei

Okamoto

et al. 2013

Pesq. agropec. bras.

Self Cite

View full text Add to dashboard Cite

show abstract

“…At the end of the 40-days experimental period, whole body oxygen consumption was measured following procedures described by Cunha et al (2009) ) at the beginning and the end of the measurement period, respectively; V is the tank volume (L); B is the fish biomass (g) and T is the measurement duration (h). Results were expressed in mg O 2 g wet body…”

Section: Methodsmentioning

confidence: 99%

Effect of salinity on survival, growth and biochemical parameters in juvenile Lebranch mullet Mugil liza (Perciformes: Mugilidae)

et al. 2015

Self Cite

View full text Add to dashboard Cite

Teleost fish growth may be improved under isosmotic condition. Growth and metabolic performance of juvenile Mugil liza (isosmotic point: 12‰) were evaluated after 40 days in different salinities (0, 6, 12 and 24‰). Tests were performed in quadruplicate (30 fish/tank; 0.48 ± 0.1 g body weight; 3.27 ± 0.1 cm total length) under controlled water temperature (28.2 ± 0.1°C) and oxygen content (>90% saturation). Fish were fed on artificial diet (50% crude protein) four times a day until apparent satiation. Results showed that salinity influenced juvenile mullet growth. Fish reared at salinity 24‰ grew better than those maintained in freshwater (salinity 0‰). Gill Na + ,K + -ATPase activity and whole body oxygen consumption showed an U-shape-type response over the range of salinities tested, with the lower values being observed at the intermediate salinities. Although no significant difference was observed in liver glycogen content at different salinities, it tended to augment with increasing salinity. These findings indicate that energy demand for osmorregulation in juvenile M. liza can be minimized under isosmotic condition. However, the amount of energy spared is not enough to improve fish growth. Results also suggest that M. liza is able to alternate between different energy-rich substrates during acclimation to environmental salinity.O crescimento de peixes teleósteos pode ser melhorado em condição isosmótica. O crescimento e o desempenho metabólico de juvenis da tainha Mugil liza (ponto isosmótico: salinidade de 12‰) foram avaliados após 40 dias de cultivo em diferentes salinidades (0, 6, 12 e 24‰). Os testes foram realizados em 4 réplicas (30 peixes/tanque; 0,48 ± 0,1 g de peso corporal; 3,27 ± 0,1 cm de comprimento total) em condições controladas de temperatura (28,2 ± 0,1°C) e conteúdo de oxigênio (>90% saturação). Os peixes foram alimentados quatro vezes ao dia com dieta artificial (50% de proteína bruta) até a saciedade aparente. Os resultados mostraram que a salinidade influenciou o crescimento dos juvenis da tainha. Os peixes cultivados na salinidade 24‰ cresceram melhor que aqueles mantidos na água doce (salinidade 0‰). A atividade da Na + ,K + -ATPase branquial e o consumo corporal de oxigênio mostraram uma resposta do tipo em forma de U, na faixa de salinidade testada, com os menores valores sendo observados nas salinidades intermediárias. Apesar de não ter sido observada diferença significativa no conteúdo de glicogênio entre os peixes mantidos nas diferentes salinidades, este parâmetro tendeu a aumentar com o incremento da salinidade. Estes achados indicam que a demanda energética para osmorregulação em juvenis de M. liza podem ser minimizados em condição isosmótica. Entretanto, a quantidade de energia poupada não é suficiente para melhorar o crescimento. Os resultados também sugerem que M. liza é capaz de alternar entre diferentes substratos ricos em energia durante a aclimatação à salinidade da água.

show abstract

“…At the end of the experimental period, whole body oxygen consumption was measured following the procedures described by Cunha et al (2009). Fish were fastened for 24 h prior to oxygen consumption measurements.…”

Section: Methodsmentioning

confidence: 99%

Acclimation of juvenile Mugil liza Valenciennes, 1836 (Mugiliformes: Mugilidae) to different environmental salinities

et al. 2015

View full text Add to dashboard Cite

Survival and physiological parameters associated with metabolism and osmoregulation were evaluated in juveniles of the Lebranche mullet Mugil liza acclimated to different water salinities (5, 10, 20, 30, and 40‰) for 15 days. Room temperature (25°C) and photoperiod (12L:12D) were fixed. Fish were fed twice-a-day with commercial diet (28% crude protein) until satiation. After acclimation, whole body oxygen consumption was measured and fish were euthanized and sampled for blood, gills, and liver. Whole body oxygen consumption and plasma osmolality did not change in the range of salinities tested. The isosmotic point was estimated as 412.7 mOsmol kg -1 (13.5‰). Gill Na + ,K + -ATPase activity tended to be lower at 20 and 30‰, while liver glycogen content was significantly higher at 20‰ than at 5 and 40‰. These results indicate that juvenile M. liza is able to acclimate for a short-period of time (15 days) to a wide range of salinities (5-40‰). This condition is achieved through adjustments in gill Na + ,K + -ATPase activity and carbohydrate metabolism to regulate plasma osmolality and aerobic/energy metabolism. Therefore, our findings support the idea of catching juveniles M. liza in sea water and rear them in estuarine and marine waters.A sobrevivência e parâmetros fisiológicos associados ao metabolismo e a osmorregulação foram avaliados em juvenis da tainha Mugil liza aclimatada à diferentes salinidades (5, 10, 20, 30 e 40‰) por 15 dias. Foram fixadas a temperatura (25°C) e o fotoperíodo (12L:12D) da sala onde os experimentos foram realizados. Os peixes foram alimentados duas vezes ao dia com ração comercial (28% de proteína bruta) até a saciedade. Após aclimatação, foi medido o consumo corporal de oxigênio e os peixes foram eutanasiados e foram coletadas amostras de sangue, brânquias e fígado. O consumo corporal de oxigênio e a osmolalidade plasmática não variaram na faixa de salinidade testada. O ponto isosmótico foi estimado em 412,7 mOsmol kg -1 (13,5‰). A atividade da Na + ,K + -ATPase branquial tendeu a ser menor em 20 e 30‰, enquanto o conteúdo de glicogênio hepático foi significativamente maior em 20‰ do que em 5 e 40‰. Estes resultados indicam que o juvenil de M. liza é capaz de se aclimatar a uma ampla faixa de salinidade (5-40‰) por um curto período de tempo (15 dias). Esta condição é atingida através de ajustes na atividade da Na + ,K + -ATPase branquial e no metabolismo de carboidratos para regular a osmolalidade plasmática e o metabolismo aeróbico/energético. Portanto, nossos achados suportam a ideia de que é possível capturar juvenis da tainha M. liza em água do mar e cultivá-los em águas estuarinas e marinhas.

show abstract

Consumo de oxigênio pós-prandial de juvenis do pampo Trachinotus marginatus

Abstract: Consumo de oxigênio pós-prandial de juvenis do pampo Trachinotus marginatus Postprandial oxygen consumption of juvenile pompano Trachinotus marginatus RESUMO

Cited by 9 publications

References 12 publications

Feeding rate and frequency on juvenile pompano growth

Feeding rate and frequency on juvenile pompano growth

Effect of salinity on survival, growth and biochemical parameters in juvenile Lebranch mullet Mugil liza (Perciformes: Mugilidae)

Acclimation of juvenile Mugil liza Valenciennes, 1836 (Mugiliformes: Mugilidae) to different environmental salinities

Contact Info

Product

Resources

About