alexa Dietary high protein and vitamin C mitigate stress due to chelate claw ablation in Macrobrachium rosenbergii males.
Agri and Aquaculture

Agri and Aquaculture

Journal of Aquaculture Research & Development

Author(s): Manush SM, Pal AK, Das T, Mukherjee SC

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Abstract Stress due to claw ablation was tested in Macrobrachium rosenbergii males. Dietary high protein and vitamin C were supplemented for amelioration of stress. We used four different treatments: fed with 25\% protein and a normal dose (0.12\%) of vitamin C (T(1)); 35\% protein and a normal dose (0.12\%) of vitamin C (T(2)); 25\% protein and a high dose (0.24\%) of vitamin C (T(3)); and high protein 35\% and a high dose (0.24\%) of vitamin C (T(4)) for 30 days. All test prawns (T(1) to T(4)) were subjected to ablation of their second chelate legs after the 15th day of the feeding trial. A control treatment was maintained without claw ablation and fed with 25\% protein. Haemolymph glucose, hepatopancreatic glycogen, muscle ascorbate and enzyme activities (glucose 6 phosphatase (G6Pase), fructose-1,6-bisphosphatase (FBPase), lactate dehydrogenase (LDH), Alanine aminotransferase (ALT) in hepatopancreas) were tested at different recovery periods (0, 6, 24 h, 7 and 14 days). Results indicate a high glucose level immediately after claw ablation and a concomitant increase in gluconeogenic enzymes (G6Pase and FBPase). However, glycogen reserves were regained in the treatments due to claw ablation stress after 24 h. LDH and ALT activity decreased in the hepatopancreas of M. rosenbergii up to 24 h after claw ablation. Overall results indicate that claw ablation is stressful to M. rosenbergii and high protein and vitamin C diet may mitigate stress due to claw ablation. This article was published in Comp Biochem Physiol A Mol Integr Physiol and referenced in Journal of Aquaculture Research & Development

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