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Research Journal of Parasitology
  Year: 2007 | Volume: 2 | Issue: 1 | Page No.: 57-62
DOI: 10.3923/jp.2007.57.62
Evaluation of Anthelmintic Effect of Neem (Azadirachta indica) Leaves on Haemonchus contortus in Goats
L. Radhakrishnan, S. Gomathinayagam and V. Balakrishnan

Abstract:
A series of tests to examine the utility of Neem leaves as anthelmintic effect on Haemonchus contortus in goats was conducted. In vitro test revealed that the pure azadirachtin tested at graded level on motility of Haemonchus contortus L3 larvae had the maximum anti larval activity at 1000 microgram concentration. The motility of Haemonchus contortus L3 larvae was not reduced up to 400 μg. The concentration of azadirachtin content in the Neem leaves was determined to be 0.0244%. In yet another experiment involving twelve weaned nondescript male kids for a duration of 63 days, the efficacy of feeding Neem leaves as an anthelmintic source was studied by infecting with 5000 larvae of Haemonchus contortus (L3) on animals fed with or without Neem leaves. It was inferred that feeding Neem leaves reduced the Egg per Gram (EPG) count from 42nd day and worm count was also significantly reduced compared to infected groups fed with complete diet that did not contain Neem leaves. Hence, it is hypothecated that a continuous feeding of Neem leaves for more than 6-9 weeks would result in reducing the EPG count as well as the worm count. It is suggested that at least during the epizootics of worm infection, Neem leaves could play a role as an alternate non-chemical organic source of anthelmintic. Thus Neem can be considered as a potential candidate for organic farming as apart from delivering nutrient and organic source of anthelmintic.
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How to cite this article:

L. Radhakrishnan, S. Gomathinayagam and V. Balakrishnan , 2007. Evaluation of Anthelmintic Effect of Neem (Azadirachta indica) Leaves on Haemonchus contortus in Goats. Research Journal of Parasitology, 2: 57-62.

DOI: 10.3923/jp.2007.57.62

URL: https://scialert.net/abstract/?doi=jp.2007.57.62

 
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