Immunomodulatory effect ofCynodon dactylonagainst white tail disease of giant freshwater prawn,Macrobrachium rosenbergii(de Man, 1879)
| Autor: | Azeez Sait Sahul Hameed, S. Vimal, Seepoo Abdul Majeed, N. Madan, Gnanavel Balasubramanian, K.S.N. Nambi, G. Taju, M.A. Farook |
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| Rok vydání: | 2015 |
| Předmět: |
0301 basic medicine
Infectivity Veterinary medicine biology Macrobrachium rosenbergii Aquatic Science Cynodon dactylon biology.organism_classification Crustacean Hatchery Fishery 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology chemistry Immunity Prawn Lysozyme |
| Zdroj: | Aquaculture Research. 47:3421-3431 |
| ISSN: | 1355-557X |
| DOI: | 10.1111/are.12789 |
| Popis: | The giant freshwater prawn, Macrobrachium rosenbergii, is an economically important and extensively cultured crustacean worldwide. The viral pathogens, Macrobrachium rosenbergii nodavirus (MrNV) and extra small virus (XSV) are responsible for causing severe mortalities in the hatchery and nursery phases. This study investigates the protection of postlarvae of freshwater against white tail disease (WTD) using plant extract derived from Cyanodon dactylon and the modulation of the prawn non-specific immunity. To determine the immunomodulatory effect of C. dactylon extract, the prawn was injected with plant extract and various immunological parameters were estimated. The immunological parameters such as proPO, SOD, THC and clotting time were found to be significantly higher in the plant extract-injected prawn when compared with control groups. The results of real time PCR analysis revealed up regulation on the expression proPO, SOD and lysozyme genes in MrNV and XSV challenged prawn postlarvae treated with C. dactylon extract. Infectivity experiment showed high relative per cent survival in MrNV and XSV-challenged prawn postlarvae treated with C. dactylon extract. These results strongly indicate that the administration of C. dactylon plant extract enhances immunity of the prawn. Based on the results, this study recommends that the immersion of postlarvae in C. dactylon plant extract is a potential prophylactic agent against WTD. |
| Databáze: | OpenAIRE |
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