Growth performance, digestive enzyme, transaminase and GH-IGF-I axis gene responsiveness to different dietary protein levels in broodstock allogenogynetic gibel carp (Carassius auratus gibelio) CAS III

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	Growth performance, digestive enzyme, transaminase and GH-IGF-I axis gene responsiveness to different dietary protein levels in broodstock allogenogynetic gibel carp (Carassius auratus gibelio) CAS III
	Tu, Yongqin 1,2; Xie, Shouqi 1; Han, Dong 1,3; Yang, Yunxia 1; Jin, Junyan 1; Liu, Haokun 1; Zhu, Xiaoming 1
刊名	AQUACULTURE
	2015-09-01
卷号	446 页码:290-297
关键词	Carassius auratus gibelio Broodstock Protein level Growth performance Enzyme activity GH-IGF-I gene expression
ISSN号	0044-8486
通讯作者	Zhu, XM (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China.
英文摘要	A 60-day growth trial was conducted to investigate the effect of dietary protein levels on growth performance, digestive enzyme activities, transaminase activities and GH-IGF-I axis gene expression of broodstock gibel carp (initial body weight, 180.3 +/- 0.4 g) using diets containing white fishmeal and casein as the main protein sources. Six isolipidic (100 g kg(-1)) and isoenergetic (gross energy 17.5 kJ g(-1)) diets were prepared, with protein levels ranging from 200 to 400 g kg(-1) at 40 g kg(-1) increments. Each diet was fed by hand to triplicate groups of 22 fish each to apparent satiation four times a day. Results indicated that specific growth rate (SGR), feed efficiency (FE) and protein retention efficiency (PRE) significantly increased with the increase of dietary protein levels from 200 to 360 g kg(-1), after that, SGR and FE plateaued while PRE notably decreased. Whole-body and muscle crude lipid increased and moisture decreased with increasing dietary protein levels; whereas crude protein and ash in whole-body and muscle, condition factor, vicerosomatic index and hepatosomatic index showed no obvious differences between treatments. Plasma ammonia concentration, hepatic alanine transaminase and aspartate transaminase activities markedly enhanced with the increase of dietary protein level up to 320-360 g kg(-1). Intestinal trypsin activity peaked in fish fed protein level of 320 g kg(-1), and then remarkably descended; while no significant differences were observed in intestinal lipase and alpha-amylase. The relative mRNA abundance of insulin like growth factor-I (IGF-I) in liver notably up-regulated with dietary protein level increasing to 360 g kg(-1), and down-regulated at higher protein level. Pituitary growth hormone (GH) mRNA showed an almost opposite trend with IGF-I. In conclusion, based on a broken-line analysis of SGR, the recommended dietary protein level for broodstock gibel carp was 369 g kg(-1), which was higher than that for sub-adult fish.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Fisheries ; Marine & Freshwater Biology
研究领域[WOS]	Fisheries ; Marine & Freshwater Biology
关键词[WOS]	TROUT ONCORHYNCHUS-MYKISS ; OREOCHROMIS-NILOTICUS L ; BREAM SPARUS-AURATA ; XIPHOPHORUS-HELLERI POECILIIDAE ; BASS DICENTRARCHUS-LABRAX ; AMINO-ACID-METABOLISM ; NILE TILAPIA ; REPRODUCTIVE-PERFORMANCE ; BODY-COMPOSITION ; SEA BASS
收录类别	SCI
语种	英语
WOS记录号	WOS:000355672000038
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/23850]
专题	水生生物研究所_淡水生态学研究中心_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Freshwater Aquaculture Collaborat Innovat Ctr Hub, Wuhan 430070, Peoples R China
推荐引用方式 GB/T 7714	Tu, Yongqin,Xie, Shouqi,Han, Dong,et al. Growth performance, digestive enzyme, transaminase and GH-IGF-I axis gene responsiveness to different dietary protein levels in broodstock allogenogynetic gibel carp (Carassius auratus gibelio) CAS III[J]. AQUACULTURE,2015,446:290-297.
APA	Tu, Yongqin.,Xie, Shouqi.,Han, Dong.,Yang, Yunxia.,Jin, Junyan.,...&Zhu, Xiaoming.(2015).Growth performance, digestive enzyme, transaminase and GH-IGF-I axis gene responsiveness to different dietary protein levels in broodstock allogenogynetic gibel carp (Carassius auratus gibelio) CAS III.AQUACULTURE,446,290-297.
MLA	Tu, Yongqin,et al."Growth performance, digestive enzyme, transaminase and GH-IGF-I axis gene responsiveness to different dietary protein levels in broodstock allogenogynetic gibel carp (Carassius auratus gibelio) CAS III".AQUACULTURE 446(2015):290-297.