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Title: Alterations of antioxidant capacity and hepatopancreatic enzymes in Penaeus monodon (Fabricius) juveniles fed diets supplemented with astaxanthin and exposed to Vibrio damsela challenge
Authors: 潘志弘(Chih-Hong Pan)
陳瑤湖(Yew-Hu Chien)
Brian Hunter
Contributors: 國立臺灣海洋大學:水產養殖學系
Keywords: alanine aminotransferase
Penaeus monodon
Vibrio damsela
total antioxidant status
superoxide dismutase
aspartate aminotransferase
Date: 2003
Issue Date: 2016-08-29T05:46:40Z
Publisher: 臺灣水產學會刊
Abstract: Abstract: This study aimed at determining whether increased body astaxanthin content in Penaeus monodon juvenile resulting from dietary astaxanthin supplementation followed by Vibrio damsela challenge could alter the shrimp's antioxidant defense capability and hepatopancreatic enzymes. Haemolymph total antioxidant status (TAS) and superoxide dismutase (SOD) were chosen as indices of shrimp antioxidant capacity. Hepatopancreatic enzymes measured were aspartate aminotransferase (AST) and alanine aminotransferase (ALT). P. monodon, 5-day old postlarvae, were fed diets supplemented with 0 or 71.5 mg astaxanthin/kg diet for 8 weeks and the resulting juvenile contained 10.5 and 45.6 μg/g body astaxanthin. Shrimp were then subjected to bath challenge of V. damsela. Up to 48 h after challenge, the survival of control shrimp, 36.5±3.2% was significantly lower than that of the astaxanthin-fed (AX) shrimp, 45.2±2.8%. After the bath challenge, AX shrimp had higher TAS and lower SOD and ALT than controls. AST was not influenced by either body astaxanthin or bath challenge. In conclusion, dietary astaxanthin increased body astaxanthin and concomitantly enhanced antioxidant defense capability in P. monodon juveniles, consequently provided protection to some extent against V. damsela challenge in the early stage, which reflected in slightly higher survival and lower ALT.
Relation: 30(4)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/38342
Appears in Collections:[水產養殖學系] 期刊論文

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