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Chattopadhyay AK, Bandyopadhyay S. Seasonal variations of EPG Levels in gastro-intestinal parasitic infection in a southeast asian controlled locale: a statistical analysis. Springerplus. 2013;2:205doi: 10.1186/2193-1801-2-205.
Chattopadhyay, A. K., & Bandyopadhyay, S. (2013). Seasonal variations of EPG Levels in gastro-intestinal parasitic infection in a southeast asian controlled locale: a statistical analysis. SpringerPlus, 2205. https://doi.org/10.1186/2193-1801-2-205
Chattopadhyay, Amit K, and Bandyopadhyay, Subhasish. "Seasonal variations of EPG Levels in gastro-intestinal parasitic infection in a southeast asian controlled locale: a statistical analysis." SpringerPlus vol. 2 (2013): 205. doi: https://doi.org/10.1186/2193-1801-2-205
Chattopadhyay AK, Bandyopadhyay S. Seasonal variations of EPG Levels in gastro-intestinal parasitic infection in a southeast asian controlled locale: a statistical analysis. Springerplus. 2013 May 06;2:205. doi: 10.1186/2193-1801-2-205. eCollection 2013. PMID: 25013746; PMCID: PMC4082254.
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Springerplus. 2013 May 06;2:205. doi: 10.1186/2193-1801-2-205. eCollection 2013.

Seasonal variations of EPG Levels in gastro-intestinal parasitic infection in a southeast asian controlled locale: a statistical analysis.

SpringerPlus

Amit K Chattopadhyay, Subhasish Bandyopadhyay

Affiliations

  1. Aston University, Non-linearity and Complexity Research Group, Engineering and Applied Science, Birmingham, B4 7ET UK.
  2. Eastern Regional Station of Indian Veterinary Research Institute, 37, Belgachia Road, Kolkata, 700 037 India.

PMID: 25013746 PMCID: PMC4082254 DOI: 10.1186/2193-1801-2-205

Abstract

We present a data based statistical study on the effects of seasonal variations in the growth rates of the gastro-intestinal (GI) parasitic infection in livestock. The alluded growth rate is estimated through the variation in the number of eggs per gram (EPG) of faeces in animals. In accordance with earlier studies, our analysis too shows that rainfall is the dominant variable in determining EPG infection rates compared to other macro-parameters like temperature and humidity. Our statistical analysis clearly indicates an oscillatory dependence of EPG levels on rainfall fluctuations. Monsoon recorded the highest infection with a comparative increase of at least 2.5 times compared to the next most infected period (summer). A least square fit of the EPG versus rainfall data indicates an approach towards a super diffusive (i. e. root mean square displacement growing faster than the square root of the elapsed time as obtained for simple diffusion) infection growth pattern regime for low rainfall regimes (technically defined as zeroth level dependence) that gets remarkably augmented for large rainfall zones. Our analysis further indicates that for low fluctuations in temperature (true on the bulk data), EPG level saturates beyond a critical value of the rainfall, a threshold that is expected to indicate the onset of the nonlinear regime. The probability density functions (PDFs) of the EPG data show oscillatory behavior in the large rainfall regime (greater than 500 mm), the frequency of oscillation, once again, being determined by the ambient wetness (rainfall, and humidity). Data recorded over three pilot projects spanning three measures of rainfall and humidity bear testimony to the universality of this statistical argument.

Keywords: EPG; Probability Density Function (PDF); anthelmintic; coccidia; histogram; least square fit; strongyle

References

  1. Adv Parasitol. 1995;35:1-84 - PubMed
  2. Int J Parasitol. 2005 Dec;35(14):1517-24 - PubMed
  3. Int J Parasitol. 1997 Jul;27(7):799-801 - PubMed
  4. Vet Parasitol. 2003 Aug 14;115(4):311-20 - PubMed
  5. Vet Parasitol. 2012 Aug 13;188(1-2):127-33 - PubMed
  6. Am J Vet Res. 2009 May;70(5):571-3 - PubMed
  7. Int J Parasitol. 1992 Jul;22(4):537-40 - PubMed
  8. J Helminthol. 1972;46(3):201-11 - PubMed
  9. Vet Parasitol. 1993 Feb;46(1-4):121-31 - PubMed
  10. Trop Anim Health Prod. 2010 Oct;42(7):1481-6 - PubMed
  11. Int J Parasitol. 1990 Jul;20(4):515-23 - PubMed
  12. Vet Parasitol. 2011 Jun 10;178(3-4):311-8 - PubMed
  13. Int J Parasitol. 1999 Jan;29(1):115-24; discussion 137-8 - PubMed
  14. Vet Immunol Immunopathol. 1987 Dec;17(1-4):91-102 - PubMed
  15. Acta Trop. 1994 Mar;56(2-3):233-43 - PubMed
  16. Vet Parasitol. 2004 Aug 13;123(1-2):121-31 - PubMed
  17. Vet Parasitol. 2011 Dec 29;183(1-2):174-7 - PubMed
  18. J Helminthol. 1968;42(3):299-304 - PubMed
  19. Vet Parasitol. 2006 Apr 30;137(3-4):306-10 - PubMed

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