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Point prevalence of bovine fascioliasis and the influence of chemotherapy on the milk yield in a lactating bovine population from the district of Toba Tek Singh, Pakistan

Published online by Cambridge University Press:  10 November 2010

M.K. Khan ,
M.S. Sajid ,
M.N. Khan ,
Z. Iqbal ,
M. Arshad  and
A. Hussain
M.K. Khan*
Affiliation:
Department of Parasitology , University of Agriculture, Faisalabad, Pakistan
M.S. Sajid
Affiliation:
Department of Parasitology , University of Agriculture, Faisalabad, Pakistan
M.N. Khan
Affiliation:
Department of Parasitology , University of Agriculture, Faisalabad, Pakistan
Z. Iqbal
Affiliation:
Department of Parasitology , University of Agriculture, Faisalabad, Pakistan
M. Arshad
Affiliation:
Department of Microbiology, University of Agriculture, Faisalabad, Pakistan
A. Hussain
Affiliation:
Veterinary Officer (Health), District Sheikhupura, Livestock and Dairy Development Department, Punjab, Pakistan
*
*E-mail: [email protected]
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Abstract

This paper provides an estimation of the point prevalence of fascioliasis and its economic impact in terms of increased milk yield after chemotherapy of a bovine population from the district of Toba Tek Singh, Punjab, Pakistan. A total of 2400 cattle and buffaloes were examined quantitatively using the McMaster egg-counting technique. Infected cattle and buffaloes (50 of each) were randomly selected and each divided into two groups of 25 animals. Groups A (buffaloes) and C (cattle) were treated with oxyclozanide (orally, 16.6 mg kg− 1 body weight). Groups B and D served as negative controls for buffaloes and cattle, respectively. Pre- and post-treatment milk yield was recorded to determine if there were any changes in milk yield after treatment. Of 2400 faecal samples analysed, 654 (27.25%) were positive for Fasciola spp. with a mean number of eggs per gram (EPG) of 503.2. The point prevalence and worm burden of fascioliasis was significantly higher (OR = 2.13; P < 0.05) in buffaloes (34.58%; 415/1200; mean EPG maximum likelihood = 521.4) as compared to that of cattle (19.92%; 239/1200; mean EPG maximum likelihood = 415.8). Among the parasite species, F. gigantica (19.88%; 477/2400) was predominant (OR = 3.12; P < 0.05) as compared to F. hepatica (7.38%; 177/2400). An average daily increase of 0.67 and 0.87 litres of milk, with 0.41% and 0.37% more fat per animal, was observed in oxyclozanide-treated buffaloes and cattle, respectively. The economic value of reduced production of infected animals was estimated as US$0.33 and 0.32 per animal per day for cattle and buffaloes, respectively.

Type
Research Papers
Information
Journal of Helminthology , Volume 85 , Issue 3 , September 2011 , pp. 334 - 338
Copyright
Copyright © Cambridge University Press 2010

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