NDLI: Effects of total replacement of fish oil on growth performance, lipid metabolism and antioxidant capacity in tilapia (Oreochromis niloticus)

Content Provider	Springer Nature Link
Author	Peng, Xianghe Li, Fajian Lin, Shimei Chen, Yongjun
Copyright Year	2015
Abstract	Five iso-nitrogenous (crude protein 32 %) and iso-energetic (gross energy 15 MJ kg−1) practical diets were formulated by totally replacing fish oil (FO) with soybean oil (SO), rapeseed oil (RO), linseed oil (LO) and pork lard (PL), respectively. These diets were fed to triplicate groups of 30 gift tilapia (Oreochromis niloticus) (mean initial weight 9 g). Fish were fed three times a day for 8 weeks at 26.5 ± 2.5 °C. The results showed that the replacement of FO with RO or LO or PL in tilapia diets did not affect growth or feed utilization. Fish fed SO exhibited lower specific growth rate and protein efficiency ratio, and higher feed conversion ratio. The lowest hepatosomatic index, hepatopancreas lipid content, hepatopancreas malondialdehyde contents, lipoprotein lipase and malate dehydrogenase activities in liver were observed in fish fed FO, LO and RO. Fish fed FO or LO exhibited higher aspartate transaminase and alanine transaminase activities in liver and higher total antioxidant capacity, superoxide dismutase and alkaline phosphatase activities in serum, but the values of these parameters were lower in fish fed PL in comparison with the other groups. This study showed that alternative lipid sources could be used successfully in tilapia diets except for SO. Total replacement of dietary fish oil by linseed oil could be possible without adverse effects on fish health.
Starting Page	145
Ending Page	156
Page Count	12
File Format	PDF
ISSN	09676120
Journal	Aquaculture International
Volume Number	24
Issue Number	1
e-ISSN	1573143X
Language	English
Publisher	Springer International Publishing
Publisher Date	2015-04-28
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Tilapia Lipid sources Growth Enzyme activities Freshwater & Marine Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Agronomy and Crop Science

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