Immunization with irradiated larvae against Dictyocaulus filaria in young lambs |
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Authors: | D N Dhar R L Sharma |
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Institution: | Regional Centre, Indian Veterinary Research Institute, Rawalpora, Srinagar-5, Kashmir India |
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Abstract: | In the lungworm-endemic areas of Kashmir, 6-10 week old lambs of Karnah and Kashmir Merino breeds were vaccinated with two doses of 50 kR gamma-irradiated larvae of Dictyocaulus filaria, given a month apart. Assessed on the basis of reduced prevalence and significantly lower faecal larval output over an eight-month observation period, vaccinated lambs showed a high degree of resistance to naturally acquired D. filaria infection. The results also show that vaccination against D. filaria provided some degree of protection against infection with other lungworm species. |
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