Effect of insecticide containing Deltamethrin on immune response of the giant freshwater prawn Macrobrachium rosenbergii (De Man 1879)

Oanh Dang Thi Hoang, . and Tien Tran Viet, . and Phuong Nguyen Thanh, . Effect of insecticide containing Deltamethrin on immune response of the giant freshwater prawn Macrobrachium rosenbergii (De Man 1879). pp. 90-103. ISSN 0116-6514

Study on natural immune responses of freshwater prawn Macrobrachium rosenbergii (De Man 1879) exposed to deltamethrin in laboratory condition was performed. Prawns (172.3 g) were maintained in water containing concentrations of deltamethrin at 0.0025; 0.025 and 0.125 mg.L-1. Prawns in control group were maintained in water without deltamethrin. Haemolymph samples from prawns in all groups were collected at 0 24 48 72 and 96 h after exposure to deltamethrin. Haemolymph analyses carried out include total haemocyte count and identification phenoloxidase respiratory burst and superoxide dismutase activities. Results of immunological analyses revealed that total haemocyte count granular cells hyalinecells and phenoloxydase activity decreased significantly (P0.05) in treatment groups compared to the control group at 24 48 72 and 96 h after exposure. Respiratory burst activity in the treatment groups increased significantly (P0.05). However in the group exposed to 0.125 mg.L-1 deltamethrin superoxide dismutase activity decreased at 24 72 and 96 h exposure to deltamethrin compared to the control group but no difference was observed at 48 h. These results suggest that exposure to deltamethrin suppressed the immune responses of M. rosenbergii.

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Abstract

Study on natural immune responses of freshwater prawn Macrobrachium rosenbergii (De Man 1879) exposed to deltamethrin in laboratory condition was performed. Prawns (172.3 g) were maintained in water containing concentrations of deltamethrin at 0.0025; 0.025 and 0.125 mg.L-1. Prawns in control group were maintained in water without deltamethrin. Haemolymph samples from prawns in all groups were collected at 0 24 48 72 and 96 h after exposure to deltamethrin. Haemolymph analyses carried out include total haemocyte count and identification phenoloxidase respiratory burst and superoxide dismutase activities. Results of immunological analyses revealed that total haemocyte count granular cells hyalinecells and phenoloxydase activity decreased significantly (P0.05) in treatment groups compared to the control group at 24 48 72 and 96 h after exposure. Respiratory burst activity in the treatment groups increased significantly (P0.05). However in the group exposed to 0.125 mg.L-1 deltamethrin superoxide dismutase activity decreased at 24 72 and 96 h exposure to deltamethrin compared to the control group but no difference was observed at 48 h. These results suggest that exposure to deltamethrin suppressed the immune responses of M. rosenbergii.

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Item Type:	Article
AGROVOC Term:	Insecticides
AGROVOC Term:	Deltamethrin
AGROVOC Term:	Immune response
AGROVOC Term:	Freshwater prawns and shrimps
AGROVOC Term:	Macrobrachium rosenbergii
AGROVOC Term:	Immune response
AGROVOC Term:	Haemolymph
AGROVOC Term:	Haemocytes
AGROVOC Term:	Identification
AGROVOC Term:	Superoxide dismutase
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/23676

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