Journal
JOURNAL OF SHELLFISH RESEARCH
Volume 28, Issue 4, Pages 931-937Publisher
NATL SHELLFISHERIES ASSOC
DOI: 10.2983/035.028.0424
Keywords
glutathione peroxidase; glutathione reductase; superoxide dismutase; total hemocyte count; hepatopancreas; prawn; Macrobrachium; Lactococcus
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Funding
- National Science Council [96-2313-B-019-009-MY3]
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This study evaluated the effects of astaxanthin (AX) injected at 1.34 nmol/g body weight oil survival, antioxidant capacity, total hemocyte count, and hepalopancreas AX content of the giant freshwater prawn Macrobrachium rosenbergii (De Mail 1879) challenged with Lactococcus garvieae. Injected AX significantly increased the Survival of M. rosenbergii challenged with L. garvieae (P <= 0.05) and enhanced to sonic extent its antioxidant capacity (superoxide dismutase, glutathione peroxidase, and glutathione reductase) and total hemocyte Count. AX-injected M. rosenbergii yielded significantly higher hepatopancreas AX content compared with non-AX-injected control. Overall results of this Study indicate that AX plays an important role in enhancing M. rosenbergii resistance against L. garvieae.
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