Dietary modulation of some digestive enzymes and Metabolic processes in developing marine fish: Applications to diet formulation
Dietary modulation of some digestive enzymes and Metabolic processes in developing marine fish: Applications to diet formulation
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DOI：
10.1016/j.aquaculture.2007.04.032
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发表时间：
2007-08-22
期刊：
影响因子：
4.5
通讯作者：
Cahu, C. L.
中科院分区：
文献类型：
--
作者：
Infante, J. L. Zambonino;Cahu, C. L.
在过去的20年里，许多研究都集中在海洋鱼类幼体消化道的发育。大多数研究旨在获得不同营养素的最佳饲料供应形式的知识，以配制能够在幼鱼摄食顺序中完全取代活猎物的复合饲料。因此，大多数研究旨在描述饲料适应对消化酶谱的影响，主要器官的形态，而其他方面的生理学的幼虫消化道（肠道激素，肠道运输.）这篇综述报告了最近的数据，特别强调，在可能的情况下，在控制酶的表达在幼虫的分子和激素机制的饮食调制消化酶。我们研究了如何饮食调制的胰腺和肠道酶参与蛋白质消化可以提供有用的信息，有关的性质和分子形式的膳食蛋白质供应，将是足够的幼虫阶段。同样，脂肪酶和磷脂酶A2的研究数据以及最近的脂质转运研究结果都有力地表明，仔鱼对磷脂的处理能力强于磷脂酰胆碱。研究某些营养物质对发育过程中某些代谢途径的影响及其对仔鱼生理和形态发生的影响，为仔鱼营养开辟了一个新的研究领域。以及青少年的进一步发展。这些研究揭示了一些代谢过程之间的交叉对话，特别是那些关于维生素A和多不饱和脂肪酸，在鱼苗的发展和揭示的必要性，设计一个全球性的方法来确定一些营养素的需求。(C)2007 Elsevier B.V.保留所有权利。
During these last 20 years, many studies have focussed on the development of the digestive tract in marine fish larvae. Most of the studies aimed at acquiring knowledge on the optimal form of dietary supply for different nutrients, in order to formulate a compound diet able to totally replace live preys in the fish larvae feeding sequence. Consequently, most of the studies aimed at describing the effect of dietary adaptation on digestive enzymes profile, the morphology of the main organs, while others aspects of the physiology of the larvae digestive tract (gut hormones, intestinal transport...) were poorly investigated.This review reports the more recent data on dietary modulation of digestive enzymes with a particular emphasis, when possible, on the molecular and hormonal mechanisms controlling enzyme expression in larvae. We examined how the dietary modulation of pancreatic and intestinal enzymes involved in protein digestion can provide useful information concerning the nature and molecular form of a dietary protein supply that would be adequate for larval stages. In the same way, data on lipase and phospholipase A2 paralleled with recent findings on lipid transport, strongly suggests that fish larvae handle phospholipids better than triglycerides.A new field of research has been opened in fish larvae nutrition, with the study of the effects of some nutrients on the functioning of some metabolic pathways involved in development and their impact on larvae physiology and morphogenesis, as well as the further development of juveniles. These studies revealed cross-talks between some metabolic processes, particularly those concerning vitamin A and polyunsaturated fatty acids, during fish larvae development and unveil the necessity to design a global approach for determining the requirements of some nutrients. (C) 2007 Elsevier B.V. All rights reserved.