Determination of tryptophan requirements for juvenile silver catfish ( Rhamdia quelen ) and its effects on growth performance, plasma and hepatic metabolites and digestive enzymes activity

Pianesso, Dirleise; Neto, João Radünz; Silva, L.P. da; Goulart, Fernanda Rodrigues; Adorian, Taida Juliana; Mombach, Patrícia Inês; Loureiro, Bruno Bianch; Dalcin, Marina Osmari; Rotili, Daniel Antonio; Lazzari, Rafael

doi:10.1016/j.anifeedsci.2015.09.025

Cited by 41 publications

(26 citation statements)

References 46 publications

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Section: Discussionsupporting

confidence: 86%

“…In the present study, weight gain of fish was affected by graded levels of dietary tryptophan, as observed in previous studies in Nile tilapia (Santiago & Lovell, ) and other fish species such as silver catfish, Rhamdia quelen (Pianesso et al., ); African catfish, Clarias gariepinus (Fagbenro & Nwanna, ); hybrid striped bass, Morone chrysops × M. saxatilis (Gaylord, Rawles, & Davis, ); and rohu, Labeo rohita (Abidi & Khan, ). The essential amino acid requirements are generally estimated based on weight gain results (NRC, ), as previously described for many fish species (Ahmed & Khan, ; Gaylord et al., ; Pianesso et al., ; Santiago & Lovell, ). In the present study, the total dietary tryptophan requirement was estimated at 3.4 g/kg, which is lower than the 3.6–3.8 g/kg obtained in Indian major carp, respectively (Ahmed & Khan, ), and higher than 2.1–2.5 g/kg that was estimated for hybrid striped bass (Gaylord et al., ), from 2.4 to 2.7 for stinging catfish (Farhat & Khan, ) and 2.8 g/kg for red drum (Pewitt et al., ).…”

Section: Discussionsupporting

confidence: 86%

“…In the present study, weight gain of fish was affected by graded levels of dietary tryptophan, as observed in previous studies in Nile tilapia (Santiago & Lovell, 1988) and other fish species such as silver catfish, Rhamdia quelen (Pianesso et al, 2015); African catfish, Clarias gariepinus (Fagbenro & Nwanna, 1999); hybrid striped bass,…”

Section: Discussionsupporting

confidence: 86%

“…Morone chrysops × M. saxatilis (Gaylord, Rawles, & Davis, 2005); and rohu, Labeo rohita (Abidi & Khan, 2010). The essential amino acid requirements are generally estimated based on weight gain results (NRC, 2011), as previously described for many fish species (Ahmed & Khan, 2005;Gaylord et al, 2005;Pianesso et al, 2015;Santiago & Lovell, 1988). In the present study, the total dietary tryptophan requirement was estimated at 3.4 g/kg, which is lower than the 3.6-3.8 g/kg obtained in Indian major carp, respectively (Ahmed & Khan, 2005), and higher than 2.1-2.5 g/kg that was estimated for hybrid striped bass (Gaylord et al, 2005), from 2.4 to 2.7 for stinging catfish (Farhat & Khan, 2014) and 2.8 g/kg for red drum (Pewitt et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

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Total and available tryptophan requirement of Nile tilapia,Oreochromis niloticus, fingerlings

et al. 2018

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The dietary total and available requirement of tryptophan of Nile tilapia fingerlings was determined using linear regression analysis. Six hundred fish (3.4 ± 0.0 g) were fed diets containing 296.4 g/kg of crude protein and 14.1 MJ/kg of digestible energy. Five extruded diets containing 2.5, 3.0, 3.4, 3.8 and 4.2 g/kg of total tryptophan were evaluated. Fish were fed four times a day during 45 days. Final body weight, weight gain, feed intake, feed conversion ratio and net protein utilization of fish fed Trp 3.4 and Trp 3.8 diets were improved compared to fish fed Trp 2.5 and Trp 4.2 diets. No significant differences in survival rate, whole‐body moisture and ash were observed. Whole‐body amino acid profile of fish fed different diets did not differ statistically (p > .05). Fish fed Trp 3.0 and Trp 3.4 diets showed higher tryptophan retention compared to fish fed Trp 2.5 and Trp 4.2 diets. Excepting blood glucose, no effects of dietary tryptophan on haematological parameters were observed. The dietary total tryptophan requirement of Nile tilapia fingerlings based on weight gain was estimated to be 3.4 g/kg (11.0 g/kg of dietary crude protein) or 3.0 g/kg of available tryptophan (11.0 g/kg of dietary digestible protein).

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Section: Discussionsupporting

confidence: 86%

Section: Discussionsupporting

confidence: 86%

Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Total and available tryptophan requirement of Nile tilapia,Oreochromis niloticus, fingerlings

et al. 2018

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“…However, the A. japonicus fed a 5% dietary Trp obtained lower SGR, probably due to excessive doses to the animal. Previous studies showed that excessive amino acid may become toxicant (Abidi & Khan, ; Alam, Teshima, Koshio & Ishikawa, ; Borlongan & Coloso, ; Pianesso et al., ). According to Zhu, Mai, Zhang, Wang and Xu (), the optimum dietary protein requirement of juvenile Stichopus japonicus was suggested to be 18.21%–24.18%.…”

Section: Discussionmentioning

confidence: 99%

Effects ofl-tryptophan on the performance, energy partitioning and endocrine response of Japanese sea cucumber (Apostichopus japonicusSelenka) exposed to crowding stress

et al. 2017

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The effects of dietary tryptophan on growth performance, energy budget and endocrine response of sea cucumber Apostichopus japonicus (Selenka) were studied, to test whether the tryptophan could mitigate the crowding stress response of the sea cucumber. Four density treatments of the sea cucumber (i.e. 4, 8, 16 and 32 individuals per 40 L water, represented as L, ML, MH and H) were fed with diets containing 0 (control), 1%, 3% and 5% L-tryptophan, respectively, for 75 days. The results showed that the specific growth rate (SGR) and feed conversion ratio (FCE) of A.japonicus decreased with increasing in the stocking densities but increased after supplementation of 1% and 3% tryptophan. The energy allocation of the A. japonicus was affected significantly by stocking density and dietary tryptophan treatments (p < .05). In general, the energy consumed (C) and energy used for growth (G) decreased with the increasing in the stocking densities. The highest proportion of energy deposited to growth occurred in each 3% treatment (L, 6.38%; ML, 6.12%; MH, 4.56% and H, 4.14%), which were significantly higher than the controls (p < .05) respectively. Higher cortisol, glucose and lactate levels of A. japonicus were recorded in the control treatments of MH and H, but L-tryptophan supplementation could reduce the levels of cortisol, glucose and lactate of the test animals. The present results proved that the growth performance of the sea cucumber was inhibited by high stocking densities, while dietary supplementation of tryptophan could significantly mitigate the crowding stress, and improve the growth of sea cucumber.

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Micronutrient and amino acid profile of breakfast cereal flakes from germinated brown rice (Oryza sativa), aerial yam (Dioscorea bulbifera) and germinated black turtle bean (Phaseolus vulgaris)

2022

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Background: Breakfast cereal flakes are currently one of the main components of a breakfast meal in many households and are gaining much research attention due to their convenience, good taste, and ease-in-preparation. Flakes production from germinated brown rice ([GBR] Oryza sativa), aerial yam (Dioscorea bulbifera), and germinated black turtle bean ([GTB] Phaseolus vulgaris) flour blends could optimize the use of these local food ingredients; and could serve as a cheap source of nutrients and functional food for disease prevention. This study aimed to produce breakfast flakes from flour blends of GBR, aerial yam, and GTB and to evaluate the micronutrients, antioxidant activity, and protein quality of the flakes produced. Results:The results showed that calcium content ranged from 2.20 to 24.93 mg/100 g, phosphorus (11.05-42.34 mg/100 g), iron (0.11-0.18 mg/100 g), copper (0.82-1.19 mg/100 g), potassium (550.58-1037.10 mg/100 g), zinc (3.87-4.39 mg/100 g) and magnesium (104.16-122.90 mg/100 g). The vitamin contents of the flakes showed that pro-vitamin A ranged from 2.07 to 4.30 mg/100 g, vitamin B 1 (2.00-3.95 mg/100 g), B 3(1.56-3.98 mg/100 g), and B 6 (1.40-3.85 mg/100 g), essential amino acid index (72%-90%), protein efficiency ratio (1.74-3.07), and biological value (71%-86%). The flakes had a good yield of amino acids, with leucine being the highest (5.80-8.55 g/100 g) concentrated essential amino acid; while glutamic acid was the highest (10.38-13.59 g/100 g) concentrated among non-essential amino acids. Conclusion:Production of breakfast cereal flakes from GBR, aerial yam, and GTB composite flours could serve as a cheap source of micronutrients and functional food.

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Determination of tryptophan requirements for juvenile silver catfish ( Rhamdia quelen ) and its effects on growth performance, plasma and hepatic metabolites and digestive enzymes activity

Cited by 41 publications

References 46 publications

Total and available tryptophan requirement of Nile tilapia,Oreochromis niloticus, fingerlings

Total and available tryptophan requirement of Nile tilapia,Oreochromis niloticus, fingerlings

Effects ofl-tryptophan on the performance, energy partitioning and endocrine response of Japanese sea cucumber (Apostichopus japonicusSelenka) exposed to crowding stress

Micronutrient and amino acid profile of breakfast cereal flakes from germinated brown rice (Oryza sativa), aerial yam (Dioscorea bulbifera) and germinated black turtle bean (Phaseolus vulgaris)

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