Pathogenicity of Leucocytozoon caulleryi for Specific Pathogen-Free Laying Hens

Kikuyasu Nakamura; Masakazu Ogiso; Tomoyuki Shibahara; Harue Kasuga; Takashi Isobe

doi:10.1645/0022-3395(2001)087[1202:POLCFS]2.0.CO;2

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Kikuyasu Nakamura,¹ Masakazu Ogiso,² Tomoyuki Shibahara,¹ Harue Kasuga,¹ Takashi Isobe¹

¹National Institute of Animal Health, Kannondai, Tsukuba, Ibaraki 305-0856, Japan
²Nishimikawa Livestock Hygiene Center, Miai-cho, Okazaki 444-0805, Japan

Abstract

The pathogenicity of Leucocytozoon caulleryi against specific-pathogen-free laying hens was investigated. Many large schizonts (second-generation schizonts) of L. caulleryi were seen in the ovary and oviducts of chickens. Edema and pressure atrophy of the adjacent tissues were associated with these schizonts. The eggshell-secreting portion of the uterus exhibited the most severe damage in the oviduct. This experiment reconfirms that L. caulleryi may stop egg production in laying hens, presumably as a result of damage to ovaries and oviducts.

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Kikuyasu Nakamura, Masakazu Ogiso, Tomoyuki Shibahara, Harue Kasuga, and Takashi Isobe "Pathogenicity of Leucocytozoon caulleryi for Specific Pathogen-Free Laying Hens," Journal of Parasitology 87(5), 1202-1204, (1 October 2001). https://doi.org/10.1645/0022-3395(2001)087[1202:POLCFS]2.0.CO;2

Published: 1 October 2001

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