The metabolic regulation of dietary L-carnitine in aquaculture nutrition: present status and future research strategies
The metabolic regulation of dietary L-carnitine in aquaculture nutrition: present status and future research strategies
复制标题
水产养殖营养中膳食左卡尼汀的代谢调节：现状与未来研究策略
DOI：
10.1111/raq.12289
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发表时间：
2019-11-01
影响因子：
10.4
通讯作者：
Du, Zhen-Yu
中科院分区：
文献类型：
--
作者：
Li, Ling-Yu;Limbu, Samwel M.;Du, Zhen-Yu
左旋肉碱是一种多功能营养素，在哺乳动物和其他真核生物的脂肪酸代谢中起主导作用。其主要生理功能是促进脂肪酸β -氧化以产生能量，这在不影响全身和肌肉水分含量的情况下降低体脂含量并改善体重。近年来，其在水产养殖营养中的膳食补充已在不同养殖品种中得到研究。已证明左旋肉碱可促进一些水生动物的生长并提高脂质利用率。然而，膳食左旋肉碱的这种有益作用在其他物种中有限或不存在。水生动物中左旋肉碱功能研究结果相互矛盾的原因需要阐明。本综述全面探讨了左旋肉碱在各种水生动物中的不同生理功能。最后，提出了研究策略以阐明水产养殖营养中膳食左旋肉碱应用方面存在的矛盾，从而促进其在水产饲料工业中的利用。
L-carnitine is a multi-functional nutrient which plays a leading role in fatty acid metabolism in mammals and other eukaryotes. Its main physiological function is to promote fatty acid beta-oxidation to produce energy, which reduces body fat content and improves body weight without affecting moisture content in whole body and muscle. In recent years, its dietary supplementation in aquaculture nutrition has been studied in different cultured species. It has been proved that L-carnitine can improve growth and increase lipid utilization rate in some aquatic animals. However, such beneficial effects of dietary L-carnitine are limited or absent in other species. The reasons for the conflicting results obtained on L-carnitine functions in aquatic animals need to be elucidated. This review explores comprehensively the different physiological functions of L-carnitine in various aquatic animals. In the end, research strategies are provided to elucidate the existing conflicts on dietary L-carnitine application in aquaculture nutrition in order to promote its utilization in aquatic feed industry.