Growth rate, feed utilization and energy metabolism of the African catfish, Clarias gariepinus (Burchell, 1822), as affected by dietary protein and energy content

Machiels, M.A.M.; Henken, A.M.

doi:10.1016/0044-8486(85)90226-1

Cited by 66 publications

(52 citation statements)

References 15 publications

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“…Highest crude protein and crude lipid level was observed in T1 group fed with probiotics Bactocell. Body lipid and body moisture were inversely related while body ash contents remained almost constant as reported in previous experiments with African catfish, Clarias gariepinus (Machiels and Henken, 1985;Henken et al, 1986). In the study, fish fed diets containing probiotics supplement showed higher body protein and lipid content than the control diet.…”

Section: Table1 Formulation Of the Experimental Diets (% Dry Weight supporting

confidence: 60%

Evaluation of Selected Dietary Probiotics on Growth Performance, Nutrient Utilization and Body Carcass Composition of Mystus Cavasius (Hamilton, 1822) Fry

Ali¹,

Paul²,

Jana³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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Section: Table1 Formulation Of the Experimental Diets (% Dry Weight supporting

confidence: 60%

Evaluation of Selected Dietary Probiotics on Growth Performance, Nutrient Utilization and Body Carcass Composition of Mystus Cavasius (Hamilton, 1822) Fry

Ali¹,

Paul²,

Jana³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

View full text Add to dashboard Cite

“…Because feeding rate affects nutrient requirements in fish, such knowledge is regarded as a prerequisite for estimation of the amounts of nutrients they should receive (Tacon and Cowey 1985;Talbot 1985). The quantity and quality of feed consumed have a pronounced effect on growth rate, efficiency of feed utilization, and chemical composition (Reddy and Katre 1979;Reinitz 1983a, b;Machiels and Henken 1985;Lovell 1989;Pickering 1993). Several other factors including fish size and water temperature also I.…”

Section: Introductionmentioning

confidence: 99%

Effect of ration size on growth, body composition, and energy and protein maintenance requirement of fingerling Indian major carp, Labeo rohita (Hamilton)

Ahmed

2007

Fish Physiol Biochem

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An eight-week feeding trial has been conducted to determine the optimum ration for Indian major carp, Labeo rohita, fingerling (4.10 ± 0.30 cm, 0.55 ± 0.16 g) by feeding a purified diet (40% CP; 3.61 kcal g -1 GE) at six levels, 2, 4, 6, 8, 10, and 12% of body weight per day, at 0800 and 1600 h, in triplicate, to 20 fish per trough fitted with a water flow-through system. Highest weight gain, best feed conversion ratio (FCR), best specific growth rate (SGR%), and highest protein efficiency ratio (PER) were evident for rations of 6-8% body weight. Second-degree polynomial regression analysis for FCR, PER, protein, and energy retention data indicated the break-points occurred at 6.55, 6.75, 6.80, and 6.95% bw per day, respectively. Significant (P < 0.05) differences between body composition were observed for fish fed different rations. Maximum body protein content was recorded for 6% and 8% rations. A linear increase in body fat content was evident with increasing ration.Body moisture and ash content remained nonsignificantly (P > 0.05) low for higher rations, however. On the basis of these results it is recommended that feeding in the range 6.5-7.0% bw per day corresponding to 2.6-2.8 g protein and 23.49-25.31 kcal energy per 100 g of the diet per day is optimum for growth and efficient feed utilization of Labeo rohita. Results for 2-4% rations (0.8-1.6 g protein and 7.23-14.46 kcal energy) suggest these amounts approximate to the maintenance requirement of this fish.

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“…Increasing the non‐protein energy density of diets has been suggested as a strategy to spare protein and to limit ammonia production. However, feeding fish with fat‐rich diets can result in an excessive lipid deposition that ultimately can reduce both growth (Machiels and Henken 1985) and health (Khairallah and Wolf 1965; Coffey et al. 1991; Chatzifotis et al.…”

Section: Introductionmentioning

confidence: 99%

Changes in amino acid composition in the tissues of African catfish (Clarias gariepinus) as a consequence of dietary L-carnitine supplements

et al. 2002

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A study was undertaken to examine the effect of different amounts of dietary lysine (13 and 21 g kg−1 diet), lipid (80 and 160 g kg−1 diet) and L‐carnitine (0.2 and 1.0 g kg−1 diet) on growth performance, proximate composition and amino acid metabolism of the African catfish (Clarias gariepinus). Juvenile African catfish (23 ± 1.5 g/fish) were stocked into 70‐L aquaria (16 aquaria, 28 fish/aquarium) connected to a recirculation system during a maximum period of 74 days. All groups were fed at a level of 24 g kg−0.8 day−1 in an experiment run at pair feeding. Animals receiving 1.0 g carnitine accumulated up to six times more carnitine in their tissues than animals receiving 0.2 g (P < 0.05). Acyl‐carnitine and free L‐carnitine levels increased in the whole body and in tissues. Dietary L‐carnitine supplements increased protein‐to‐fat ratios in the body, but did not affect growth rate. Protein‐to‐fat ratios were only affected when the biosynthesis capacity of L‐carnitine was restricted due to low lysine levels and when there was a shortage of dietary fat. When lysine was offered at 21 g kg−1 feed, dietary L‐carnitine supplements did not affect the amino acid concentrations of body tissues. Dietary L‐carnitine supplements raised the concentration of glutamic acid > aspartic acid > glycine > alanine > arginine > serine > threonine in skeletal muscle tissue (P < 0.05). Total amino acid concentration in muscle and liver tissues (dry‐matter basis) increased from 506 to 564 and from 138 to 166 mg g−1, respectively, when diets were offered with high L‐carnitine, low lysine and low fat levels. These data suggest that dietary L‐carnitine supplementation may increase fatty acid oxidation and possibly decrease amino acid combustion for energy.

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Growth rate, feed utilization and energy metabolism of the African catfish, Clarias gariepinus (Burchell, 1822), as affected by dietary protein and energy content

Cited by 66 publications

References 15 publications

Evaluation of Selected Dietary Probiotics on Growth Performance, Nutrient Utilization and Body Carcass Composition of Mystus Cavasius (Hamilton, 1822) Fry

Evaluation of Selected Dietary Probiotics on Growth Performance, Nutrient Utilization and Body Carcass Composition of Mystus Cavasius (Hamilton, 1822) Fry

Effect of ration size on growth, body composition, and energy and protein maintenance requirement of fingerling Indian major carp, Labeo rohita (Hamilton)

Changes in amino acid composition in the tissues of African catfish (Clarias gariepinus) as a consequence of dietary L-carnitine supplements

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