Haematological and biochemical changes in cattle of Eloor with special reference to endosulfan
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Date
2002
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Department of Pharmacology and Toxicology, College of Veterinary and Animal Sciences, Mannuthy
Abstract
A study was undertaken to assess the impact of environmental pollution
with endosulfan in cattle of Eloor industrial belt. Hindustan Insecticide Limited
is the major industrial unit handling endosulfan is situated here. So this area
was selected for the conduct of study.
Field samples like sludge, water and fodder and biological samples like
blood, dung, urine and milk of cattle in the study area were collected. The
collected samples were analysed for endosulfan level by gas liquid
chromatography and compared (statistically) with those of control samples
collected from University Livestock Farm (ULF), Mannuthy.
A higher level of endosulfan could be detected in the field and
biological samples ofEloor cattle than control animals. Milk samples collected
from both Eloor area and ULF, Mannuthy had no detectable level of endosulfan
in them except for one sample from the study area. Fodder was suspected to be
the main source of endosulfan to cattle.
A significant change was noticed in lymphocyte count, neutrophil and
eosinophil count of the animals in affected area. Other haematologic values
like total leucocyte count, total erythrocyte count, packed cell volume and
erythrocyte indices (MC V, MCH, MCHC) did not show any significant
di fferences. Eventhough the biochemical parameters like the creatinine
phosphokinase and BUN level showed significant difference between test and
control animals, these were within the normal range.
It can be inferred that the levels of endosulfan in the field and biological
samples were not sufficient enough to cause toxic symptoms and the variations
in haematological and biochemical parameters might be due to role of other
contaminants apart from endosulfan. However it could be concluded that field
and biological samples collected from vicinities of Hindustan insecticides Ltd.
were contaminated with endosulfan. The higher than normal endosulfan level
in all samples may be looked with caution because of its toxic nature.
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Citation
171993