Light cycle effects on Haliotis discus hannai Ino growth, energy budget, and related gene expression

doi:10.1016/j.aquaculture.2017.10.010

	Light cycle effects on Haliotis discus hannai Ino growth, energy budget, and related gene expression
	Gao Xiaolong1,2 ; Zhang Mo 1; Li Xian 1; Wu Fucun 1; Song Changbin 3; Liu Ying2
	2018-01-20
发表期刊	AQUACULTURE
卷号	483 页码:213-222
文章类型	Article
摘要	This study investigated the effects of different light cycles on growth, food intake, energy budget, and related gene expression of the abalone Haliotis discus hannai Ino. Abalones (mean +/- standard error shell length: 30.28 +/- 1.64 mm, body weight: 4.51 +/- 0.49 g) were exposed to the following light cycles: 0L:24D, 4L:20D, 8L:16D, 12L:12D, and 16L:8D for 60 days, four repetitions were provided for each light cycle. At the end of the experiment, there was no significant difference in shell length or body weight growth rate between 0L:24D and 4L:20D (P > 0.05), the values of which were significantly higher than in 16L:8D (P < 0.05). In 0L:24D, abalone food intake was significantly higher compared with in the other groups (P < 0.05), but the food conversion efficiency was significantly lower than in 4L:20D (P < 0.05). At the end of the experiment, in 16L:8D, the activity of hexokinase was significantly higher than in any other group (P < 0.05), but in 12L:12D and 16L:8D, it significantly increased compared with Day 30 (P < 0.05). In 0L:24D, 4L:20D, and 8L: 16D, cellulase and pyruvate kinase activity was significantly higher than in 12L:12D and 16L:8D (P < 0.05). There was no significant difference in the energy acquired from food in 0L:24D and 4L:20D (P > 0.05). However, the energy loss via feces and respiratory metabolism in 0L: 24D was significantly higher than in 4L: 20D (P < 0.05); therefore, the energy accumulated for individual growth was significantly lower than in 4L:20D (P < 0.05). Although the energy loss via feces, excretion, and respiratory metabolism was significantly lower in 16L:8D compared with 0L:24D, 4L:20D, and 8L:16D, the ratio of the energy loss via feces and respiratory metabolism to the energy acquired from food intake was significantly higher than in any other group (P < 0.05); therefore, the net growth efficiency K-2 was significantly lower (P < 0.05). In 16L:8D, gene expression levels of manganese superoxide dismutase (Mn-SOD), catalase (CAT), TPx, heat shock protein (HSP) 26, HSP70, and HSP90 were significantly higher than in any other group (P < 0.05). At the end of the experiment, Mn-SOD, CAT, and HSP70 expression in 16L:8D significantly increased compared with Day 30 (P < 0.05). Therefore, considering aquaculture production and business costs, it would be appropriate to select the light cycle of 4L:20D for the culture of H. d. hannai.
关键词	Haliotis Discus Hannai Ino Light Cycle Activity Of Digestive Enzymes Energy Budget Gene Expression
DOI	10.1016/j.aquaculture.2017.10.010
收录类别	SCI
语种	英语
WOS记录号	WOS:000414417800027
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.qdio.ac.cn/handle/337002/143065
专题	海洋环境工程技术研究发展中心实验海洋生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Dalian Ocean Univ, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Gao Xiaolong,Zhang Mo,Li Xian,et al. Light cycle effects on Haliotis discus hannai Ino growth, energy budget, and related gene expression[J]. AQUACULTURE,2018,483:213-222.
APA	Gao Xiaolong,Zhang Mo,Li Xian,Wu Fucun,Song Changbin,&Liu Ying.(2018).Light cycle effects on Haliotis discus hannai Ino growth, energy budget, and related gene expression.AQUACULTURE,483,213-222.
MLA	Gao Xiaolong,et al."Light cycle effects on Haliotis discus hannai Ino growth, energy budget, and related gene expression".AQUACULTURE 483(2018):213-222.

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