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Bolliet, Valérie; Cheewasedtham, Chonlatee; Houlihan, Dominic; Gelineau, Anne; Boujard, Thierry. |
The effect of feeding time was studied in rainbow trout fed different dietary levels of fat. Fish were fed either 1 h after light on in the morning or 1 h after light off in the evening with a low energy diet (LE, 6 % lipid) or a high energy diet (HE, 23 % lipid). Regardless of the diet, apparent digestibility and post prandial protein synthesis were higher in fish fed in the morning than in those fed at the beginning of the night. In fish fed the LE diet in the morning, growth performance and nutrient retention efficiency tended to be higher than in those fed at the beginning of the night. In contrast, fish fed the HE diet in the morning had lower protein growth rate, protein content and protein retention efficiency than those fed in the evening. These... |
Tipo: Text |
Palavras-chave: Protein metabolism; Digestibility; Feeding time; Dietary fat level; Aquaculture; Métabolisme protéique; Digestibilité; Heure d'alimentation; Taux de lipides alimentaires; Aquaculture. |
Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/2000/publication-543.pdf |
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Gelineau, Anne; Bolliet, Valérie; Corrraze, Geneviève; Boujard, Thierry. |
The combined effects of feeding time (morning and evening) and dietary fat concentration on feed intake, growth, body composition and lipid tissue distribution were examined in rainbow trout fed on demand. To that purpose, diets with low (LE, 6% lipid) or high energy concentrations (HE, 24% lipid) were used in four treatments that combined provision of the same (HE-HE or LE-LE) or different (HE-LE, LE-HE) diets at morning and evening meals. Digestible energy intakes of the LE-HE (229 U kg(-1) d(-1)) and HE-HE (269 U kg(-1) d(-1)) groups were significantly different. There was no significant difference in the amount of energy intake between the two meals of the day in any of the treatments. The main effect of dietary treatment was on lipid intake; fish in... |
Tipo: Text |
Palavras-chave: Oncorhynchus mykiss; Body composition; Feed intake; Growth; Lipid; Feeding time. |
Ano: 2002 |
URL: https://archimer.ifremer.fr/doc/2002/publication-1398.pdf |
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