水生生物学报2016，Vol.40Issue(4)：672-680,9.DOI:10.7541/2016.90
不同植物脂肪源对吉富罗非鱼生长性能、肌肉脂肪酸和生理生化指标的影响
EFFECT OF DIETARY VEGETABLE OILS WHEN FED TO GENETICALLY IMPROVED FARMED TILAPIA STRAIN OF NILE TILAPIA OREOCHROMISNILOTICUS
摘要
Abstract
An 8-week growth trial was conducted with GIFT (Genetic Improvement of Farmed Tilapia) tilapia to in-vestigate the supplemented feed diets with different vegetable oil as substitutes for fish oil. Six diets were supplemen-ted with 3%of either soybean oil (SO), palm oil (PO), cottonseed oil (CO), rapeseed oil (RO), phospholipid (SL), rape-seed oil (RO), 1∶1∶1∶1∶1 soybean oil-palm oil-cottonseed oil-rapeseed oil-phospholipid mixture (MIX). The re-sults showed that:(1) The specific growth rate of CO group was significantly higher than that of the PO, CO, SL and MIX group (P<0.05). The specific growth rate of SO group was significantly higher than that of the CO and PO group (P<0.05). The feed conversion ratio of RO group was significantly lower than that of the PO, CO and SL group (P<0.05), and had no significance with other groups (P>0.05). The feed conversion ratio of SO group was significantly lower than that of the CO group (P<0.05), and had no significance with other groups (P>0.05);(2) Fatty acid composi-tion of muscle in fish generally reflected the composition of the diet. The maximum correlation between muscle fatty acid composition and diet fatty acids composition was PO group, the minimal was CO group;(3) The activity of serum aspartate transaminase of PO group was significantly higher than that of the RO group (P<0.05). The content of high density lipoprotein cholesterol of CO group was significantly higher than that of the RO and PO group (P<0.05) and had no significance with other groups (P>0.05). The content of low density lipoprotein cholesterol of CO group were significantly higher than that of the MIX group (P<0.05) and had no significance with other groups (P>0.05). The re-sults suggested that rapeseed oil and soybean oil can be good lipid sources for the diet of the GIFT tilapia. Cottonseed oil will not improve the growth of the GIFT tilapia as good as rapeseed oil, palm oil, phospholipid oil and mixed oil.关键词
吉富罗非鱼/植物脂肪源/生长/肌肉脂肪酸/生理生化指标Key words
GIFT tilapia/Vegetable oil/Growth/Muscle fatty acid composition/Physiological index and biochemical index分类
农业科技引用本文复制引用
李新,杨瑞斌,钱雪桥,张健..不同植物脂肪源对吉富罗非鱼生长性能、肌肉脂肪酸和生理生化指标的影响[J].水生生物学报,2016,40(4):672-680,9.基金项目
广东海大集团海大研究院科研项目(TL14A3305)资助[Supported by the Scientific Research Project of Haid Research Institute of Guangdong Haid Group (TL14A3305)] （TL14A3305）
