Effect of ammonia on the immune response of mud crab (Scylla paramamosain) and its susceptibility to mud crab reovirus

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dc.contributor.authorCheng, Chang-Hong
dc.contributor.authorMa, Hong-Ling
dc.contributor.authorDeng, Yi-Qin
dc.contributor.authorFeng, Juan
dc.contributor.authorJie, Yu-Kun
dc.contributor.authorGuo, Zhi-Xun
dc.date.accessioned2021-03-15T17:58:38Z
dc.date.available2021-03-15T17:58:38Z
dc.date.issued2020
dc.description.abstractAmmonia is one of the major environmental pollutants that affect the growth and physiological functions of organisms. In the present study, the effects of ammonia on the immune response and pathogen resistance of mud crab reovirus (MCRV) in mud crab were investigated. Mud crab were exposed to four different ammonia concentrations (0, 2.5, 5 and 10 mg L-1 ammonia-N) for 7 d. The result showed that aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activity significantly increased after 5 and 10 mg L-1 ammonia exposure. The hepatopancreas superoxide dismutase (SOD), catalase (CAT), and total antioxidative capacity (T-AOC) in ammonia-N group were significantly lower than those in the control group, while the levels of malondialdehyde (MDA) were significantly higher than those in the control group. Significant reductions in total hemocyte counts (THC) were observed after ammonia exposure. After 7d ammonia exposure, mud crabs were injected 100 μL MCRV at 105 copies/g body weight. The mortality of mud crabs in ammonia-N group were significantly higher than those in the control group. All these results suggested that ammonia in water caused a depression in the immune response, and increased susceptibility to MCRV infection.
dc.format.extent0 pages
dc.identifier.doihttps://doi.org/10.46989/001c.21468
dc.identifier.issn0792-156X
dc.identifier.urihttp://hdl.handle.net/10524/63804
dc.relation.ispartofThe Israeli Journal of Aquaculture - Bamidgeh
dc.subjectimmune response
dc.subjectammonia
dc.subjecthemocyte
dc.subjectcatalase
dc.subjecthepatopancreas
dc.subjectmud crab
dc.subjectoxidative stress
dc.subjectammonia exposure
dc.subjectmcrv infection
dc.subjectscylla paramamosain
dc.titleEffect of ammonia on the immune response of mud crab (Scylla paramamosain) and its susceptibility to mud crab reovirus
dc.typeArticle
dc.type.dcmiText
prism.volume72

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Volume 72, 2020