[关键词]
[摘要]
维生素D3是水产养殖动物必需的微量营养素,在维持水产动物正常生长、发育和营养代谢等方面具有重要功能。水产动物几乎不能合成维生素D3,主要通过食物获取。为了深入解析维生素D3调控水产动物糖脂代谢的机制,本文综述了近12年来最新的研究进展,包括水产动物对饲料维生素D3需求量及其影响因素、维生素D3吸收、转运和代谢机理,以及维生素D3调控糖脂代谢的机制。已有的研究主要聚焦于水产动物维生素D3营养生理、代谢和对糖脂代谢的调控,但仍有很多重要的科学问题尚未解决。重点需制定统一的 水产动物维生素D3需求量评价标准,加强维生素D3对水产动物糖脂代谢及机制的研究,从而为水产动物维生素D3营养的精准调控奠定基础。
[Key word]
[Abstract]
Vitamin D3 is an essential vitamin for aquatic animals and functions to maintain normal growth, development, and nutritional metabolism. Aquatic animals barely synthesize vitamin D3 in the body. Instead, they obtain vitamin D3 mainly from feed. To gain deep knowledge concerning mechanisms by which vitamin D3 regulates carbohydrate and lipid metabolism in aquatic animals, we summarized dietary vitamin D3 requirement and its influencing factors, and illustrated vitamin D3 absorption, transport, metabolism and regulatory mechanisms, and the mechanism of vitamin D3 regulating carbohydrate and lipid metabolism in aquatic animals. At present, studies are very limited on nutrition physiology, metabolism and regulation on carbohydrate and lipid metabolism by vitamin D3 in aquatic animals, and many important scientific questions remain unresolved. In the future, it will be necessary to set up a unified standard evaluating “dietary vitamin D3 requirement of aquatic animals” and to target studies concerning mechanisms regulating carbohydrate and lipid metabolism in aquatic animals, which will provide references for precise regulation of vitamin D3 nutrition physiology in aquatic animals.
[中图分类号]
S 963.73+1
[基金项目]
国家重点研发计划(2018YFD0900400)