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Research Journal of Veterinary Sciences
  Year: 2012 | Volume: 5 | Issue: 1 | Page No.: 13-24
DOI: 10.3923/rjvs.2012.13.24
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Stress Quantification in Penaeus monodon Exposed to Different Levels of Ammonia and Subsequent Infection to WSSV

M.N. Mohamed Fouzi, Mohamed Shariff and Fatimah Md Yusoff

Accumulation of ammonia is toxic and can cause stress in cultured animals leading to immune depression and increase susceptibility to diseases in aquaculture systems. The present study was aimed to quantify stress in shrimp exposed to different levels of total ammonia nitrogen, TAN, (8.1, 3.8 and 1.1 mg L-1) for 10 days and subsequently infect with White Spot Syndrome Virus (WSSV) by feeding positive WSSV shrimp. Haemo-chemicals alanine transaminase (ALT), aspartate transaminase (AST), total protein (TP), glucose and electrolytes (Na+, Cl¯, K+) were measured to quantify the stress caused by ammonia and WSSV infection. Shrimp exposed to 8.1 mg L-1 TAN for 10 days revealed significantly high haemolymph ALT, AST and TP while shrimp exposed to 3.8 mg L-1 TAN showed significantly low TP. These changes in haemolymph parameters showed that exposure to 3.8 mg L-1 TAN for 48 h was sufficient to stress the shrimp. Stress in shrimp exposed to ammonia for 10 days further increased significantly when shrimp were infected with WSSV. During post WSSV infection, haeomolymph TP significantly decreased with increase in TAN 1.1, 3.8 and 8.1 mg L-1 treatments. Therefore, exposure of shrimp to higher ammonia level had stressed the shrimp more and the stress further increased by subsequent infection with WSSV as illustrated by changes of haemo-chemical parameters.
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  •    Efficacy of Dietary Immunostimulants to Enhance the Immunological Responses and Vibriosis Resistance of Juvenile Penaeus monodon
  •    Histopathological Observation of White Spot Syndrome Virus and Infectious Hypodermal and Hematopoietic Necrosis Virus in Shrimp Farms, Litopenaeus vannamei, in Bushehr Province, Iran
  •    Acute Toxicity of Ammonia to Common Carp Fingerlings (Cyprinus carpio) at Different pH Levels
  •    Effect of Ascaridia galli Infestation on Electrolytes and Vitamins in Chickens
  •    Effects of Industrial Waste Water on the Physical and Chemical Characteristics of a Tropical Coastal River
  •    Determination of the Cerebrospinal Fluid Electrolytes Alteration in the Developing Rats Born from Diabetic Mothers
How to cite this article:

M.N. Mohamed Fouzi, Mohamed Shariff and Fatimah Md Yusoff, 2012. Stress Quantification in Penaeus monodon Exposed to Different Levels of Ammonia and Subsequent Infection to WSSV. Research Journal of Veterinary Sciences, 5: 13-24.

DOI: 10.3923/rjvs.2012.13.24






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