Dietary nutrient composition affects digestible energy utilisation for growth: a study on Nile tilapia (<i>Oreochromis niloticus</i>) and a literature comparison across fish species

Schrama, J.W.; Saravanan, S.; Geurden, Inge; Heinsbroek, L.T.N.; Kaushik, Sadasivam; Verreth, J.A.J.

doi:10.1017/s0007114511005654

Cited by 50 publications

(92 citation statements)

References 38 publications

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“…Irrespective of the fat intake, trout in the present study predominantly deposited dietary fat into body fat with a high-fat retention efficiency (>92%). This confirms the overall low utilization of ingested fat for energy production through oxidation and the large capacity of trout to store body fat without compromising DEI, as previously reported in this species (7,8,34,37) and other fish (38).…”

Section: Discussionsupporting

confidence: 89%

Voluntary Feed Intake in Rainbow Trout Is Regulated by Diet-Induced Differences in Oxygen Use

Saravanan

Geurden

Figueiredo-Silva

et al. 2013

The Journal of Nutrition

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This study investigated the hypothesis that the voluntary feed intake in fish is regulated by diet-induced differences in oxygen use. Four diets were prepared with a similar digestible protein:digestible energy ratio (18 mg/kJ), but which differed in the composition of nonprotein energy source. This replacement of fat (F) by starch (S) was intended to create a diet-induced difference in oxygen use (per unit of feed): diets F30-S70, F50-S50, F65-S35, and F80-S20 with digestible fat providing 28, 49, 65, and 81% of the nonprotein digestible energy (NPDE), respectively. Each diet was fed to satiation to triplicate groups of 20 rainbow trout for 6 wk. As expected, diet-induced oxygen use decreased linearly (R(2) = 0.89; P < 0.001) with increasing NPDE as fat. The digestible and metabolizable energy intakes of trout slightly increased with increasing NPDE as fat (i.e., decreasing starch content) (R(2) = 0.30, P = 0.08; and R(2) = 0.34, P = 0.05, respectively). Oxygen consumption of trout fed to satiation declined with increasing dietary NPDE as fat (R(2) = 0.48; P = 0.01). The inverse relation between digestible energy intake of trout and the diet-induced oxygen use (R(2) = 0.33; P = 0.05) suggests a possible role of diet-induced oxygen use in feed intake regulation as shown by the replacement of dietary fat by starch.

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Section: Discussionsupporting

confidence: 89%

Voluntary Feed Intake in Rainbow Trout Is Regulated by Diet-Induced Differences in Oxygen Use

Saravanan

Geurden

Figueiredo-Silva

et al. 2013

The Journal of Nutrition

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“…The apparent digestibility of energy (<72% in Table ) in the current study, which was similar with the report of Jin (), was less than that of Schrama et al . () in Nile tilapia. The different dietary energy concentrations and energy sources could be the main reason.…”

Section: Discussionmentioning

confidence: 99%

The effect of dietary methionine concentrations on growth performance of juvenile Nile tilapia (Oreochromis niloticus) fed diets with two different digestible energy levels

Liang

Lemme

et al. 2016

Aquacult Nutr

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A growth trial was conducted to examine the effect of dietary digestible energy (DE) content on methionine (Met) utilization and requirement in juvenile Nile tilapia (Oreochromis niloticus). Ten iso‐nitrogenous (288 g kg−1 protein) practical diets, with two DE levels (10.9 MJ kg−1; 12.4 MJ kg−1) and five methionine supplementation levels (0, 1, 2, 4 and 6 g kg−1), were hand‐fed twice daily to triplicate groups of Nile tilapia (initial body weight 8.95 ± 0.06 g) for 8 weeks. Weight gain (WG) and specific growth rate (SGR) increased significantly with increasing dietary methionine concentration at the same DE content (P < 0.001). At the same dietary methionine level, WG and SGR of fish fed high‐DE diets were significantly higher than that of fish fed low‐DE diets (P = 0.0001), although no interaction was found between dietary DE and methionine supplementation. Based on quadratic regression analysis between dietary methionine concentration and weight gain, optimal methionine requirement for maximum growth, expressed as g Met required kg−1 diet (low‐ versus high‐DE diets), increased as diet DE concentration increased (7.34 versus 9.90 g kg−1 diet, respectively; with cysteine 4.70 g kg−1 diet). The results indicated that diet DE content affects methionine utilization and requirement in juvenile Nile tilapia, fish fed high‐DE diets required more methionine for maximum growth.

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“…Feeding is a key factor for individual survival and growth (Elliott, 1976;Schrama et al, 2012) but it is also important for food web composition and can alter the composition of aquatic communities (Herrmann et al, 2012;Winkelmann et al, 2011). Feeding-mediated interaction is not limited to direct predation and individual growth but also involve competition for nutrients and other more complex interactions.…”

Section: Methodsmentioning

confidence: 99%

Environmentally relevant concentrations of citalopram partially inhibit feeding in the three-spine stickleback (Gasterosteus aculeatus)

et al. 2015

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PostprintThis is the accepted version of a paper published in Aquatic Toxicology. This paper has been peerreviewed but does not include the final publisher proof-corrections or journal pagination.Citation for the original published paper (version of record):Kellner, M., Porseryd, T., Porsch-Hallstrom, I., Hansen, S., Olsén, H. (2015) Environmentally relevant concentrations of citalopram partially inhibit feeding in the three-spine stickleback (Gasterosteus aculeatus).Aquatic Toxicology,[158][159][160][161][162][163][164][165][166][167][168][169][170] http://dx.doi.org/10.1016/j.aquatox. 2014.11.003 Access to the published version may require subscription. N.B. When citing this work, cite the original published paper. NOTICE: this is the author's version of a work that was accepted for publication in Aquatic Toxicology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Aquatic Toxicology, Vol. 158,[165][166][167][168][169][170] Abstract Selective Serotonin Re-uptake Inhibitors (SSRI) are mood-altering, psychotropic drugs commonly used in the treatment of depression and other psychological illnesses. Many of them are poorly degraded in sewage treatment plants and enter the environment unaltered. In laboratory studies, they have been demonstrated to affect a wide range of behaviours in aquatic organisms. In this study we investigated the effect of a three week exposure of 0.15 and 1.5 µg/l of the SSRI citalopram dissolved in the ambient water on the feeding behaviour in three-spine stickleback (Gasterosteus aculeatus). Feeding, measured as the number of attacks performed on a piece of frozen bloodworms during a 10 minute period, was reduced by 40-60% in fish exposed to both 0.15 and 1.5 µg/l citalopram. The effects of the environmentally relevant dose 0.15 µg/l on feeding, an important fitness characteristic, suggests that the ecological significance of environmental SSRI exposure may be pronounced.

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Dietary nutrient composition affects digestible energy utilisation for growth: a study on Nile tilapia (Oreochromis niloticus) and a literature comparison across fish species

Cited by 50 publications

References 38 publications

Voluntary Feed Intake in Rainbow Trout Is Regulated by Diet-Induced Differences in Oxygen Use

Voluntary Feed Intake in Rainbow Trout Is Regulated by Diet-Induced Differences in Oxygen Use

The effect of dietary methionine concentrations on growth performance of juvenile Nile tilapia (Oreochromis niloticus) fed diets with two different digestible energy levels

Environmentally relevant concentrations of citalopram partially inhibit feeding in the three-spine stickleback (Gasterosteus aculeatus)

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