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首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >Feeding Frequency Differently Affects Post Prandial Patterns of Plasma Glucose, Insulin and Insulin-like Growth Factor I in European Sea Bass (Dicentrarchus labrax)
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Feeding Frequency Differently Affects Post Prandial Patterns of Plasma Glucose, Insulin and Insulin-like Growth Factor I in European Sea Bass (Dicentrarchus labrax)

机译：进食频率不同地影响欧洲鲈鱼（Dicentrarchus labrax）的血浆葡萄糖，胰岛素和胰岛素样生长因子I的餐后模式

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摘要

The aim of this study was to investigate the effects of feeding frequency on post-prandial pattern of circulating glucose, insulin and IGF-I (insulin-like growth factor-I) in European sea bass (D. labrax). Fish (average body weight 72.1 +/- 2 g) were randomly allocated in 12 tanks, reared in a closed thermo regulated recirculating system and fed a commercial diet at a fixed ration (1.5% body weight) for 7 weeks. Six fish groups were fed the ration in one meal a day (08:(30) am), while six fish groups were offered the same ration in two daily meals (08:(30) am and 04:(30) pm) according to a complete random design. Plasma insulin mean level was affected by the splitting up of the ration (14.4 vs 15.2 ng/ml, P<0.05, one meal and two meals/day, respectively) and showed a bimodal profile depending on the meal administration. The level of circulating glucose was slightly affected by feeding pattern with an increase of glycaemia after each meal. The daily pattern of plasma IGF-I did not appear related to meal administration. Results show that post prandial plasma glucose, insulin and IGF-I are differently affected by the meal administration pattern in sea bass due to their physiological role in maintaining the internal homeostasis.
机译：这项研究的目的是调查进食频率对欧洲鲈鱼（D. labrax）餐后循环葡萄糖，胰岛素和IGF-I（类胰岛素生长因子-I）的影响。将鱼（平均体重72.1 +/- 2 g）随机分配到12个水箱中，在密闭的温度调节循环系统中饲养，并以固定比例（1.5％体重）喂食商业饲料，持续7周。根据每天一顿饭（上午08：（30））向六个鱼群喂食定量饲料，每天两顿饭（上午08：（30）和下午04：（30））给六个鱼群提供相同的定量喂食。到完整的随机设计。血浆胰岛素平均水平受比例分配的影响（分别为14.4 ng / ml和15.2 ng / ml，P <0.05，一餐和两餐/天），并显示双峰曲线，具体取决于进餐量。进餐方式对循环葡萄糖水平的影响很小，每餐后血糖升高。血浆IGF-I的日常模式似乎与进餐无关。结果表明，餐后血浆葡萄糖，胰岛素和IGF-I受鲈鱼膳食管理方式的影响不同，这是由于它们在维持内部体内平衡方面的生理作用。

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