动物营养学报2019，Vol.31Issue(9)：4396-4403,8.DOI:10.3969／j.issn.1006⁃267x.2019.09.055
氧化鱼油对方格星虫稚虫生长性能、体组成和抗氧化酶活性的影响
Effects of Oxidized Fish Oil on Growth Performance, Body Composition and Antioxidant Enzyme Activities of Juvenile Peanut Worm ( Sipunculus nudus)
摘要
Abstract
This experiment was conducted to evaluate the effects of oxidized fish oil on growth performance, body composition and antioxidant enzyme activities of juvenile peanut worm ( Sipunculus nudus). A total of 5 400 healthy juvenile peanut worm with an initial body weight of ( 28.86 ±0.63) mg were randomly divided into 6 groups with 3 replicates of 300 peanut worm. Six experimental diets were prepared using fresh fish oil [ peroxide value ( POV) was 1.37 meq／kg) and five kinds of oxidized fish oil with different oxidation degrees ( POV were 63.62, 151.17, 243.89, 357.79 and 457.82 meq／kg, respectively) , which named as OX0 ( con?trol) , OX1, OX2, OX3, OX4 and OX5, respectively, to fed peanut worm in 6 groups for 8 weeks. The re?sults showed that the oxidized fish oil with different oxidation degrees significantly affected survival ratio ( SR) , final body weight ( FBW) , weight gain rate ( WGR) and specific growth rate ( SGR) ( P＜0.05) , and all of them were decreased at different degrees with the increase of POV of the oxidized fish oil. The SR of OX5 group with was significantly lower than that of control group ( P＜0.05). The FBW, WGR and SGR of OX4 and OX5 groups were significantly lower than those of control group ( P＜0.05). The oxidized fish oil with different oxidation degrees significantly affected body protein content ( P＜0.05). The body protein content in OX1, OX2 and OX3 groups had no significant difference compared with control group ( P＞0.05) , but that in OX4 and OX5 groups was significantly decreased compared with control group ( P＜0.05). The oxidized fish oil with different oxidation degrees also had significantly effects on superoxide dismutase ( SOD) and glutathi?one peroxidase ( GSH?Px) activities of worm ( P＜0.05). With the increase of POV of the oxidized fish oil, the SOD and GSH?Px activities of worm were decreased gradually, and that in OX5 group was significantly lower than that in control group ( P＜0.05). In conclusion, oxidized fish oil will result in the retardation of growth, the increase of mortality, the reduction of body nutritional value and the damage of oxidation resist?ance of juvenile peanut worm, and the exacerbation of them with the oxidation degree of fish oil increasing. [ Chinese Journal of Animal Nutrition, 2019, 31(9) :4396?4403]关键词
方格星虫/氧化鱼油/生长性能/体组成/抗氧化酶Key words
peanut worm ( Sipunculus nudus) /oxidized fish oil/growth performance/body composition/an⁃tioxidant enzyme分类
农业科技引用本文复制引用
董兰芳,张琴,许明珠,童潼..氧化鱼油对方格星虫稚虫生长性能、体组成和抗氧化酶活性的影响[J].动物营养学报,2019,31(9):4396-4403,8.基金项目
广西创新驱动发展专项资金项目(桂科AA17204044) （桂科AA17204044）
广西科技基地和人才专项(桂科AD18126005) （桂科AD18126005）
广西海洋生物技术重点实验室开放基金资助课题( GLMBT⁃201801) （ GLMBT⁃201801）
广西民族大学相思湖青年学者创新团队资助项目( 2018RSCXSHQN02) （ 2018RSCXSHQN02）
广西民族大学引进人才科研启动项目(2018KJQD14) （2018KJQD14）
