KMID : 1023519950180020152
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Korean Journal of Veterinary Service 1995 Volume.18 No. 2 p.152 ~ p.157
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Prevalence of Cryptosporidium baileyi Infection of Chickens In South Kyeonggi Area
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Seo Young-Suk
Park Chan-Sook Kim Chang-Soo
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Abstract
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A total of 1050 layer and broiler chickens from 63 flocks of 21 poultry farms in South-Kyeonggi area, aged from 1 to 18 weeks, were investigated for the prevalence of Cryptosporidium baileyi infection from May 1992 to March 1993. The results have shown that 44 chickens(4.19%) were infected with C.(baileyi during the period of investigation) Fecal samples were treated by using Sheather¡¯s flotating technique and were examined under the light and phase contrast microscopy and then stained by Kinyoun method. Cryptosporidium oocysts were found in 35 out of 650 broilers(5.4%) and 9 out of 400 layer chickens(2.3%) aged mainly from 2 to 12 weeks. The regional infection rate were 4.7% in Pyeong-taek, 5.1% in An-sung and 2.3% in Yong-in, respectively. The average size of isolated oocyst was about and the oocysts were orally inoculated into 2-day-old SPF chickens for the histological examination of oocyst in bursa of Fabricius. The study has concluded that C. baileyi infects chickens and oocysts were isolated in South-Kyeonggi area.
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KEYWORD
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Cryptosporidium baileyi, Chirkens, Prevalence
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