Dietary lysine requirement of juvenile pacu Piaractus mesopotamicus (Holmberg, 1887)

Bicudo, Álvaro José de Almeida; Sado, Ricardo Yuji; Cyrino, José Eurico Possebon

doi:10.1016/j.aquaculture.2009.09.031

Cited by 54 publications

(35 citation statements)

References 42 publications

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“…All fish were deprived of feed for 24 hr before measure and weighing ( n = 15 fish per tank). Growth parameters were calculated as follows: weight gain (WG, %) = 100 × (final body weight (g) − initial body weight (g))/initial body weight (g); specific growth rate (SGR, %/day) = 100 × (ln final weight (g) − ln initial weight (g))/days of the trial (Bicudo et al, ).…”

Section: Methodsmentioning

confidence: 99%

Dietary β‐carotene improves growth performance and antioxidant status of juvenilePiaractus mesopotamicus

et al. 2019

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This study was conducted to investigate the effects of dietary synthetic β‐carotene on growth performance, haematological and immunological parameters, energy reserves and antioxidant status of juvenile fish Piaractus mesopotamicus. Two hundred and ten fish (12.24 ± 2.98 g) were fed with a control extruded feed (CEF) and the same diet supplemented with β‐carotene (BEF) for 90 days. A higher weight gain and specific growth rate were found in fish fed BEF in comparison with those fed CEF. In addition, BEF‐fed fish showed lower liver somatic index and a higher percentage of eosinophils. No statistical differences were found in energy reserves, except for plasma triglycerides which decreased in fish fed with BEF. Regarding oxidative stress markers, decreased activities of antioxidant enzymes were found in intestine and gills of BEF‐fed fish (SOD and GST, respectively). In the liver, both LPO levels and CAT activity decreased in fish fed with BEF. Additionally, lower brain LPO levels without changes in the antioxidant enzymes were observed in BEF‐fed fish. The inclusion of dietary synthetic β‐carotene improved growth and antioxidant status, and had a plasma triglyceride‐lowering effect in juvenile P. mesopotamicus.

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Section: Methodsmentioning

confidence: 99%

Dietary β‐carotene improves growth performance and antioxidant status of juvenilePiaractus mesopotamicus

et al. 2019

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“…Lysine is considered the least toxic of the amino acids (Sauberlich, ). However, excess lysine may impede fish growth (Bicudo, Sado, & Cyrino, ; Mai et al, ). In the present study, no such effect was confirmed because the fish exhibited sexual maturation, which would not have occurred if there had been growth depression.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of gross protein and lipid requirements in formulated feed for honey gourami, Trichogaster chuna (Hamilton 1822)

Sukumaran

Vijayagopal

Chakraborty

et al. 2018

J World Aquaculture Soc

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Gross protein and fat requirements in formulated feeds designed for the honey gourami, Trichogaster chuna (initial weight 1.34–1.38 g), were investigated. Feeds containing 30%, 40%, and 50% protein and 6% and 9% lipid at each protein level were tested. Protein and energy sources used were from fishmeal, shrimp meal, clam meal, soy flour, and wheat flour. An equal mixture of crude sardine oil and groundnut oil was used as the source of lipids. Comparison of the whole gourami amino acid profiles before and after the dietary treatments indicated a relative decline in all amino acids except methionine and lysine. Fatty acid profiles of whole individuals after dietary treatment showed a substantial increase in monounsaturated fatty acids relative to the initial fatty acid profiles. No significant differences were observed in fish growth between dietary treatments (p > .05). Feeds containing 30% protein and 6% lipid were found to be adequate for normal growth, while feeds with 40% protein and 6% lipid were seen to help accelerate growth and reproduction. In this study, protein and lipid levels required for regular maintenance, sexual maturation, and spawning of aquarium‐reared gourami were established.

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“…Diets were formulated taking into account the nutrient requirement for P. mesopotamicus (Bicudo, Sado, & Cyrino, ) with commercial corn meal, soybean meal (America Pampa Agroindustrial S.A.), corn starch, vitamin–mineral mix (Nutralia) and commercial fish meal (FM) or bovine plasma protein concentrate (BPP) (Yeruvá S.A.) according to Cian, Bacchetta, Cazenave, and Drago () (Table ). Two diets were produced: a diet with 130 g/kg of FM (FM diet—FMD) and a diet with 130 g/kg of BPP (BPP diet—BPPD) as a full replacement of FM.…”

Section: Methodsmentioning

confidence: 99%

“…In order to evaluate growth performance, fish starved for 24 hr were measured and weighed. The following indexes were calculated: weight gain (WG, %) = 100 × (final body weight (g) − initial body weight (g))/initial body weight (g); specific growth rate (SGR, %/day) = 100 × (ln final weight (g) − ln initial weight (g))/days of the trial (Bicudo et al, ).…”

Section: Methodsmentioning

confidence: 99%

Bovine plasma protein as an alternative protein source in extruded aquafeeds forPiaractus mesopotamicus(pacú) at two fattening stages

et al. 2019

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An 84‐day feeding trial was conducted to evaluate the addition of bovine plasma protein concentrate (BPP) as a full replacement of fish meal (FM) in extruded aquafeeds for the fish Piaractus mesopotamicus at two fattening stages. Fish with an initial body weight of 105.55 ± 13.48 g (1st fattening stage) and 564.50 ± 88.02 g (2nd fattening stage) received two iso‐nitrogenous and isocaloric diets with 130 g/kg of FM (FM diet—FMD) or with 130 g/kg of BPP (BPP diet—BPPD). No significant difference in growth performance was detected between dietary treatments. Fish from the 2nd fattening stage showed decreased intestinal pH and increased haemoglobin content. At the 1st fattening stage, fish fed with BPPD presented higher levels of plasma triglycerides and cholesterol, and hepatic and whole‐body lipid content, while plasma glucose and muscular glycogen were lower at the 2nd fattening stage compared with FMD‐fed fish. Fish fed with FMD showed an increase in the thiobarbituric acid reactive substances in liver at the 1st fattening stage and intestine at the 2nd one, accompanied by higher levels of hepatic catalase at the 1st fattening stage. Results suggest BPP could completely replace FM in diets for P. mesopotamicus without affecting growth performance, when FM represents 13% of the diet.

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Dietary lysine requirement of juvenile pacu Piaractus mesopotamicus (Holmberg, 1887)

Cited by 54 publications

References 42 publications

Dietary β‐carotene improves growth performance and antioxidant status of juvenilePiaractus mesopotamicus

Dietary β‐carotene improves growth performance and antioxidant status of juvenilePiaractus mesopotamicus

Evaluation of gross protein and lipid requirements in formulated feed for honey gourami, Trichogaster chuna (Hamilton 1822)

Bovine plasma protein as an alternative protein source in extruded aquafeeds forPiaractus mesopotamicus(pacú) at two fattening stages

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