References

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Hussein, H.S. and S.E. El-Sammani, 1990. Onchocerca raillieti. Release from skin snips. Maintenance in vitro and periodicity of microfilariae. Vet. Res. Comun., 14: 31-39.
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Knott, J., 1939. A method for making microfilarial surveys on day blood. Trans. R. Soc. Trop. Med. Hygiene, 33: 191-196.
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Levine, N.D., 1968. Nematode Parasites of Domestic Animals and of Man. 1st Edn., Burgess Publisher, Minneapolis, USA., ISBN: 0808712993, pp: 103-105.

Lyons, E.T., 1986. Onchocerca spp.: Frequency in thoroughbreds at necropsy in Kentucky. Am. J. Vet. Res., 74: 882-884.
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Lyons, E.T., 1988. Verification of ineffectual activity of ivermectin against adult Onchocerca spp. in the ligamentum nuchae of horses. Am. J. Vet. Res., 46: 983-985.
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Mirzayans, A. and H. Maghsoodloo, 1977. Filarial infection of equidae in the Tehran area of Iran. Trop. Anim. Health Prod., 9: 19-20.
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Soulsby, E.J.L., 1982. Helminthes, Arthropods and Protozoa of Domesticated Animals. 7th Edn., Lea and Febiger Publisher, Philadelphia, USA., ISBN: 0-7020-0820-6, pp: 307-319.