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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2014 , Volume 2, Issue 3
Page No. : 30-34
Article doi: : http://dx.doi.org/10.18782
Effect of Sub-Lethal Exposure Of DDT on Mid-Gut Lipid Peroxidation and Some Nutritional Parameters of the Earthworm Pheretima Peguana (Rosa)
Rumpi Seal1, Santanu Sarma2* and Azad Ali3
1Department of Zoology, Bholanath College, Dhubri (Assam)
2Assistant Professor, Department of Zoology, Bholanath College, Dhubri (Assam)
3Head of the Department & Coordinator of Biodiversity and Ecological Research Centre, Department of Zoology,
Bholanath College, Dhubri-783324, (Assam)
*Corresponding Author E-mail: dr.santanusarma111@gmail.com
ABSTRACT
Healthy earthworms of the species Pheretima peguana (Rosa) were exposed to 5ppm and 10ppm of DDT
respectively (Groups-II & III) against normal control group (Group-I), in a rearing media prepared by
thorough mixing of sundried and powdered cow-dung, fine crushed rotted pseudo-stem of banana plant,
silted soil and distilled water in 5:3:1:2 by weight. Prior to experiment the LD50 value of DDT for this
species was determined as13.66±0.102 ppm (mg/kg of media) for 7 days. After the study period of 7 days
it had been revealed that, DDT is very toxic to the earthworms even though in sub-lethal amount. It leads
to lipid-peroxidation of the main metabolic organ “the mid-gut” of these animals, resulting in lowering of
nutrient levels in body fluid including Glucose and Total Protein. Total Protein–Albumin ratio and Total
Cholesterol-Very Low Density Lipoproteins ratio were drastically changed. Enhancements of
Triglycerides, Low Density Lipoproteins and Very Low Density Lipoproteins were also marked.
Keywords: - DDT, earthworm, lipid peroxidation, nutrient.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article:
Int. J. Pure App. Biosci. 2 (3): 30-34 (2014)
