| FU Jinghua,ZHANG Wenbing,MAI Kangsen,FENG Xiuni,XU Wei,LIUFU Zhiguo,TAN Beiping. 2006. Effects of dietary vitamin A on antioxidant responses of abalone Haliotis discus hannai Ino. Acta Oceanologica Sinica, (5):141－150 |
| Effects of dietary vitamin A on antioxidant responses of abalone Haliotis discus hannai Ino |
| Effects of dietary vitamin A on antioxidant responses of abalone Haliotis discus hannai Ino |
| Received:March 02, 2006 Revised:June 29, 2006 |
| DOI： |
| Key words:Haliotis discus hannai vitamin A antioxidant enzymes mollusk |
| 中文关键词: Haliotis discus hannai vitamin A antioxidant enzymes mollusk |
| 基金项目: |
| Author Name | Affiliation | E-mail | | FU Jinghua | Key Laboratory of Mariculture of Ministry of Education, Ocean University of China, Qingdao 266003, China | | | ZHANG Wenbing | Key Laboratory of Mariculture of Ministry of Education, Ocean University of China, Qingdao 266003, China | wzhang@ouc.edu.cn | | MAI Kangsen | Key Laboratory of Mariculture of Ministry of Education, Ocean University of China, Qingdao 266003, China | | | FENG Xiuni | Key Laboratory of Mariculture of Ministry of Education, Ocean University of China, Qingdao 266003, China | | | XU Wei | Key Laboratory of Mariculture of Ministry of Education, Ocean University of China, Qingdao 266003, China | | | LIUFU Zhiguo | Key Laboratory of Mariculture of Ministry of Education, Ocean University of China, Qingdao 266003, China | | | TAN Beiping | Key Laboratory of Mariculture of Ministry of Education, Ocean University of China, Qingdao 266003, China | |
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| Abstract: |
| A 240 d growth experiment was conducted in a re-circulated water system to investigate the effects of dietary vitamin A on growth and antioxidant responses of abalone Haliotis discus hannai Ino.Triplicate groups of juvenile abalone[initial mass was (0.96±0.02) g, shell length was (17.70±0.06) mm] were fed to satiation one of three semi-purified diets containing 0, 1×103, 1×106 IU vitamin A per kilogram diet, respectively.Results showed that the daily increment in shell length (DISL) of abalone in the treatment with 1×103 IU vitamin A per kilogram diet was significantly higher than that with 0 or 1×106 IU vitamin A per kilogram supplementation (P> 0.05).Vitamin A deficiency (0 IU/kg) significantly elevated the activities of superoxide dismutase (SOD), glutathione peroxidase (GPX) and glutathione reductase (GR) in the viscera of abalone (P> 0.05).In muscle, the effects of vitamin A deficiency on SOD and GPX activities were the same as those in viscera, however, the activity of GR significantly decreased (P> 0.05).Vitamin A deficiency significantly decreased the ratio of CAT to SOD (catalase/superoxide dismutase) in viscera (P> 0.05).Nevertheless, it significantly decreased the ratio of GR to GPX in muscle (P> 0.05).Compared with the supplement of 1×103 IU vitamin A per kilogram, excessive vitamin A (1×106 IU/kg) had no significant effects on the activities of CAT, SOD and glutathione-S-transferase (GST) (P> 0.05), but significantly elevated GPX and GR activities in viscera (P> 0.05).In muscle, the activities of CAT, SOD, GPX, GST and GR were significantly decreased by the excessive dietary vitamin A supplement (P> 0.05).Compared with the supplement of 1×103 IU vitamin A per kilogram, vitamin A-excessive had no significant effect on the value of ratio of CAT to SOD either in viscera or in muscle (P>0.05).The ratio of GR to GPX was significantly decreased in viscera, but significantly elevated in muscle in the vitamin A-excessive group (P> 0.05).In conclusion, optimum supplement of vitamin A (1×103 IU/kg) was beneficial for abalone to maintain maximum growth and antioxidant system.Hypo-or hyper-vitaminosis A would decrease growth and the efficiency of scavenging reactive oxygen species (ROS) of abalone. |
| 中文摘要: |
| A 240 d growth experiment was conducted in a re-circulated water system to investigate the effects of dietary vitamin A on growth and antioxidant responses of abalone Haliotis discus hannai Ino.Triplicate groups of juvenile abalone[initial mass was (0.96±0.02) g, shell length was (17.70±0.06) mm] were fed to satiation one of three semi-purified diets containing 0, 1×103, 1×106 IU vitamin A per kilogram diet, respectively.Results showed that the daily increment in shell length (DISL) of abalone in the treatment with 1×103 IU vitamin A per kilogram diet was significantly higher than that with 0 or 1×106 IU vitamin A per kilogram supplementation (P> 0.05).Vitamin A deficiency (0 IU/kg) significantly elevated the activities of superoxide dismutase (SOD), glutathione peroxidase (GPX) and glutathione reductase (GR) in the viscera of abalone (P> 0.05).In muscle, the effects of vitamin A deficiency on SOD and GPX activities were the same as those in viscera, however, the activity of GR significantly decreased (P> 0.05).Vitamin A deficiency significantly decreased the ratio of CAT to SOD (catalase/superoxide dismutase) in viscera (P> 0.05).Nevertheless, it significantly decreased the ratio of GR to GPX in muscle (P> 0.05).Compared with the supplement of 1×103 IU vitamin A per kilogram, excessive vitamin A (1×106 IU/kg) had no significant effects on the activities of CAT, SOD and glutathione-S-transferase (GST) (P> 0.05), but significantly elevated GPX and GR activities in viscera (P> 0.05).In muscle, the activities of CAT, SOD, GPX, GST and GR were significantly decreased by the excessive dietary vitamin A supplement (P> 0.05).Compared with the supplement of 1×103 IU vitamin A per kilogram, vitamin A-excessive had no significant effect on the value of ratio of CAT to SOD either in viscera or in muscle (P>0.05).The ratio of GR to GPX was significantly decreased in viscera, but significantly elevated in muscle in the vitamin A-excessive group (P> 0.05).In conclusion, optimum supplement of vitamin A (1×103 IU/kg) was beneficial for abalone to maintain maximum growth and antioxidant system.Hypo-or hyper-vitaminosis A would decrease growth and the efficiency of scavenging reactive oxygen species (ROS) of abalone. |
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