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第 30 卷 第 4 期
广东海洋大学学报 Vo l .3 0 No.4
2010 年 8 月 Journal of Guangdong Ocean University Aug. 2010
收稿日期:2010-04-28
基金项目:中国水产科学研究院珠江水产研究所所长基金项目
第一作者:张晓红(1980-),女,硕士研究生。E-mail: zhangxiaohong818@163.com
通讯作者:吴锐全,研究员,从事水产动物营养与饲料研究。E-mail: wuruiquan1@21cn.com
饲料中添加虾青素对血鹦鹉皮肤类胡萝卜素含量和
体色三刺激值的影响
张晓红
1,2
,吴锐全
1
,王海英
1
,欧阳冰
1
,吴立新
2
(1. 中国水产科学研究院珠江水产研究所,广东 广州 510380; 2. 大连大连海洋大学生命科学与技术学院,辽宁 大连 116023)
摘 要:为探讨投喂增色剂对鱼类增色效果的定量评价方法,分别用添加 0、30、100、300、500、700、900 mg/kg
虾青素的饲料饲喂血鹦鹉 60
d,测定血鹦鹉皮肤中的总类胡萝卜素含量和鱼体体色的三刺激值。结果显示,血鹦鹉
皮肤总类胡萝卜素含量随着虾青素添加量的增加而升高,而三刺激值 X、Y、Z 则逐渐减小。总类胡萝卜素含量 300~
900 mg/kg 各组显著高于对照组(P < 0.05),500、700 和 900 mg/kg 组显著高于 0、30、100 mg/kg 组(P < 0.05),
而 500、700 和 900 mg/kg 各组间差异不显著(P > 0.05)。总类胡萝卜素含量与三刺激值间的相关系数分别为-0.966、
-0.932、-0.981,均达到极显著水平(P < 0.01)。可见,在饲料中添加虾青素可明显提高血鹦鹉皮肤类胡萝卜素含
量,改善血鹦鹉体色,血鹦鹉体色的三刺激值与皮肤总类胡萝卜素含量有极高的相关性,可用测色色差计测定血鹦
鹉的三刺激值,并以此来推算鱼体皮肤总类胡萝卜素含量,定量评价血鹦鹉的体色。
关键词:血鹦鹉;体色三刺激值;类胡萝卜素含量;虾青素
中图分类号:S963.73 文献标志码:A 文章编号:1673-9159(2010)04-0077-04
Effects of Dietary Astaxanthin on Total Carotenoids Contents of Skin of
Blood Parrot (Cichlasoma citrinellum × C. synspilum) and
X, Y, Z Data of Colorimeter
ZHANG Xiao-hong
1,2
, WU Rui-quan
1
, WANG Hai-ying
1
, OU Yang-bing
1
,WU Li-xin
2
(1.Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380,
China; 2. School of Life Science and Technology, Dalian Ocean University, Dalian 116023, China )
Abstract: In order to investigate the result of pigment enhancing agents on fish pigmentation without
injuring fish body quantitatively, blood parrot were divided into 7 groups and fed with artificial diet with 0,
30, 100, 300, 500, 700 and 900 mg/kg astaxanthin. After 60d of rearing, the pigment contents of skin and
the data of X or Y or Z from colorimeter were measured. The results indicated that the total carotenoids
contents of skin were promoted while the values of X or Y or Z from colorimeter decreased with increasing
dietary astaxanthin concentration. The total carotenoids contents of skin of 300-900 mg/kg groups were
significantly higher than that of the control group (P < 0.05) and that of 500, 700, 900 mg/kg groups were
significantly higher than that of 0, 30 and 100mg/kg groups (P < 0.05). The total carotenoids contents were
not significantly different among 500, 700 and 900 mg/kg groups (P > 0.05). The correlation coefficients
between total carotenoids contents and the data of X or Y or Z from colorimeter were -0.966, -0.932,
-0.981 respectively and the relationships were extremely close correlated (P < 0.01). The results showed
that adding astaxanthin in feed could increase the carotenoids contents of skin and improve the body color