Effect of sub-lethal nitrite toxicity on the hematological parameters of fingerlings of rohu, Labeo rohita (Ham.)


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Authors

  • P C Das Central Institute of Freshwater Aquaculture, Bhubaneswar-751002, Orissa, India
  • S Ayyappan Krishi Anusandhan Bhawan-II, Indian Council of Agricultural Research, Pusa, New Delhi 110 012
  • J K Jena Krishi Anusandhan Bhawan-II, Indian Council of Agricultural Research, Pusa, New Delhi 110 012
  • B K Das Krishi Anusandhan Bhawan-II, Indian Council of Agricultural Research, Pusa, New Delhi 110 012

Abstract

Changes in hematology of fingerlings of Labeo rohita exposed to 0, 1, 2, 4, 8 and 10.4 mg/l nitrite-nitrogen was studied for a period of 96 hours. Immature erythrocytes count, after 96 hours, increased with increasing concentration up to 4 mg/l followed by reduction to complete absence in 8-10.4 mg/l. Total
erythrocyte count reduced at 6 hour after which it increased continuously in 1- 2 mg/l, but reverse was the case in 4-10.4 mg/l. Haemoglobin content reduced with increasing concentration as well as exposure period, with significant
reduction after 6, 12 and 24 hours in 10.4, 4-8 and 1-2 mg/l, respectively. Leukocyte count increased with exposure period in 4-10.4 mg/l with significant increase in 10.4, 8 and 4 mg/l after 6, 12 and 48hr., respectively. Blood glucose level increased with increasing exposure period with a peak after 6 hours proportional to the nitrite concentration. Serum protein content reduced insignificantly (P>0.05) after 96 hours with increasing nitrite concentration

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Author Biographies

  • P C Das, Central Institute of Freshwater Aquaculture, Bhubaneswar-751002, Orissa, India
    Central Institute of Freshwater Aquaculture, Bhubaneswar-751002, Orissa, India
  • S Ayyappan, Krishi Anusandhan Bhawan-II, Indian Council of Agricultural Research, Pusa, New Delhi 110 012
    Krishi Anusandhan Bhawan-II, Indian Council of Agricultural Research,
    Pusa, New Delhi 110 012
  • J K Jena, Krishi Anusandhan Bhawan-II, Indian Council of Agricultural Research, Pusa, New Delhi 110 012
    Krishi Anusandhan Bhawan-II, Indian Council of Agricultural Research,
    Pusa, New Delhi 110 012
  • B K Das, Krishi Anusandhan Bhawan-II, Indian Council of Agricultural Research, Pusa, New Delhi 110 012
    Krishi Anusandhan Bhawan-II, Indian Council of Agricultural Research,
    Pusa, New Delhi 110 012

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Issue

Vol. 51 No. 3 (2004)

Section

Articles

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How to Cite

Das, P. C., Ayyappan, S., Jena, J. K., & Das, B. K. (2011). Effect of sub-lethal nitrite toxicity on the hematological parameters of fingerlings of rohu, Labeo rohita (Ham.). Indian Journal of Fisheries, 51(3), 287-294. https://epubs.icar.org.in/index.php/IJF/article/view/7203