Protein sparing effects in large rainbow trout, Salmo gairdneri

Beamish, F. W. H.; Medland, T. E.

doi:10.1016/0044-8486(86)90053-0

Cited by 116 publications

(84 citation statements)

References 16 publications

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“…Our study confirms the existence of a positive effect of high dietary energy contents on feed efficiency and protein efficiency ratio as already described in the rainbow trout [10,15,55,58,63]. In hand-fed trout, FE and PER were respectively enhanced by 11% and 7.5% from 15% to 30% dietary lipid contents, whereas in selffed trout, this rise was more evident (14% for FE and 18% for PER).…”

Section: Discussionsupporting

confidence: 76%

Relation between dietary lipid level and voluntary feed intake, growth, nutrient gain, lipid deposition and hepatic lipogenesis in rainbow trout

Gélineau¹,

et al. 2001

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-Four diets with differing lipid contents (15,20,25 or 30% DM) were tested on small (initial body weight: 27 g) and larger (IBW: 93 g) rainbow trout (Oncorhynchus mykiss) fed on demand or by hand, respectively. In both trials, voluntary feed intake was inversely related to dietary lipid levels. Protein efficiency increased when dietary fat content increased. Final whole-body lipid content was positively related to dietary lipid levels. The main sites of lipid storage were visceral adipose tissue and to a lesser extent muscle. Increased fat deposition in the visceral cavity of young trout was due to both hyperplasic and hypertrophic responses and in larger trout mostly due to a hypertrophic response. Liver activities of glucose-6-phosphate dehydrogenase and fatty acid synthetase were negatively correlated with fat intake and positively with starch intake, whereas malic enzyme was little affected by dietary treatments. rainbow trout / dietary lipid / feed intake / lipid depositionRésumé -Relation entre le taux de lipides alimentaires et l'ingestion volontaire, les performances de croissance, les dépôts lipidiques et la lipogénèse hépatique chez la truite arc-en-ciel. Quatre régimes différant par leur contenu lipidique (15, 20, 25 et 30 % MS) sont testés chez des truites arc-en-ciel (Oncorhynchus mykiss) de petite taille (poids initial : 27 g) ou plus grandes (p.i. : 93 g) nourries respectivement à la demande ou à la main. Dans les deux cas, l'augmentation de la teneur en lipides du régime diminue l'ingestion volontaire et augmente l'efficacité protéique et le gain lipidique. La teneur corporelle finale en lipides est positivement corrélée aux taux de lipides alimentaires. Les sites principaux de stockage des lipides sont le tissu adipeux péri-viscéral et dans une moindre mesure le muscle. L'élévation des dépôts péri-viscéraux est due, chez les Reprod. Nutr. Dev. 41 (2001) 487-503 487

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Section: Discussionsupporting

confidence: 76%

Relation between dietary lipid level and voluntary feed intake, growth, nutrient gain, lipid deposition and hepatic lipogenesis in rainbow trout

Gélineau¹,

et al. 2001

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“…Protein sparing effect has been demonstrated in many marine fish species (Torstensen et al 2001;Helland and Grisdale-Helland 1998;Beamish and Medland 1986;Kim and Lee 2005). The increase in dietary lipids significantly improved PER in our study, revealing that increasing the dietary lipids will provide a more efficient utilization of dietary protein for growth purposes (Lee et al 2002).…”

Section: Discussionmentioning

confidence: 45%

Effects of dietary lipid levels on growth, feed utilization, body composition, fatty acid profiles and antioxidant parameters of juvenile chu’s croaker Nibea coibor

Huang

Wen

et al. 2016

Aquacult Int

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The present study aimed at determining the growth performance, feed utilization, body composition and antioxidant status of chu's croaker (Nibea coibor) juveniles fed with increasing levels of dietary lipid: 6 % (D6), 9 % (D9), 12 % (D12) and 15 % (D15). Each diet was assigned to triplicate groups of fish in a total of 12 floating pens (300 fish, 25 fish per pen). After a 49-day growth trial, survival rate was not affected. D12 and D15 led to significantly higher specific growth rate (SGR). Fish fed D12 showed the highest protein efficiency ratio (PER), protein and lipid retention efficiencies (PER and LRE, respectively). The hepatosomatic and viscerosomatic indexes (HIS and VSI, respectively) increased, while feed conversion ratio (FCR) and feed intake (FI) decreased. Body protein, ash and muscle lipid contents were not significantly affected, but significantly higher body and liver lipid were noticed in fish fed with D15. Monounsaturated fatty acid (MUFA) was found to decrease compared to the experimental diets in muscle, while high unsaturated fatty acid (HUFA) was selectively accumulated in all treatments. Serum alanine transaminase (ALT, 14.13-22.53 U/L), aspartate transaminase (AST, 34.31-51.25 U/L), cholesterol (CHO, 2.02-3.03 mmol/L) and triglyceride (TG, 5.61-8.50 mmol/L) were correlated with increasing dietary lipids. Liver malate dehydrogenase (MDA, 3.32-6.67 mmol/L) and superoxide dismutase (SOD, 42.69-52.86 U/mg prot) increased with dietary lipids, while total antioxidant capacity (t-AOC, 1.08-3.50 U/mg prot) decreased. Polynomial regression analyses between SGR and dietary lipid levels showed that the optimal dietary lipid requirement of chu's croaker is 12.9 % of dry matter.

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“…Poor/reduced growth of fish fed lower carbohydrate diets during the present study agrees with the findings of Bergot (1979) and Jantrarotai et al (1994) in rainbow trout and hybrid Clarias catfish, respectively. Moreover, higher levels of inclusion of cellulose as filler in the low carbohydrate diets ( diets Dl and D2) may have resulted poor fish growth (Beamish and Medland 1986).…”

Section: Discussionmentioning

confidence: 99%

Optimum dietary carbohydrate requirement of rohu, Labeo rohita (Hamilton), fingerlings

Saha¹,

Ray²

2001

Acta Ichthyol. Piscat.

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Protein sparing effects in large rainbow trout, Salmo gairdneri

Cited by 116 publications

References 16 publications

Relation between dietary lipid level and voluntary feed intake, growth, nutrient gain, lipid deposition and hepatic lipogenesis in rainbow trout

Relation between dietary lipid level and voluntary feed intake, growth, nutrient gain, lipid deposition and hepatic lipogenesis in rainbow trout

Effects of dietary lipid levels on growth, feed utilization, body composition, fatty acid profiles and antioxidant parameters of juvenile chu’s croaker Nibea coibor

Optimum dietary carbohydrate requirement of rohu, Labeo rohita (Hamilton), fingerlings

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