• KOREAN POULTRY JOURNAL
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• v.34 no.5 s.391
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• pp.96-101
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• 2002

종계장 질병 청정화에 대하여는 오래 전부터 논의 되어왔던 주제인 만큼 많은 양계인들이 나름대로의 풍부한 지식과 의견을 가지고 있고 어떻게 대비하여야 할 것인지를 충분히 알고 있을 것으로 생각한다. 그러나, 새 천년이 시작된 이 시점에 육계에서 가금티푸스발생이 급격히 증가하여 종계장에서의 질병 청정화가 새롭게 거론되고 있어 마음이 무겁기만 하다. 이와 같이 육계에서 가금티푸스 발생이 급격히 증가를 한 이유는 종계로부터 가금티푸스 균이 난계대전염되었기 때문인 것으로 보는 것이 일반적인 견해일 것이다. 따라서, 이 자리에서는 작금의 상황을 좀더 직접적으로 살펴보고자 종계장에서의 난계대 질병 중 현재 문제가 되고 있는 육계에서의 가금티푸스 방제에 관련하여 중점적으로 이야기 하고자 한다.

• KOREAN POULTRY JOURNAL
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• v.3 no.6 s.20
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• pp.88-90
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• 1971

• KOREAN POULTRY JOURNAL
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• v.3 no.5 s.19
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• pp.65-68
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• 1971

• KOREAN POULTRY JOURNAL
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• v.29 no.11 s.337
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• pp.102-105
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• 1997

• 에너지협의회보
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• s.62
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• pp.8-17
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• 2002

• KOREAN POULTRY JOURNAL
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• v.42 no.8
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• pp.110-115
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• 2010

• KOREAN POULTRY JOURNAL
• /
• s.97
• /
• pp.78-86
• /
• 1977

• KOREAN POULTRY JOURNAL
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• v.56 no.2
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• pp.104-107
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• 2024

• Korean Journal of Plant Tissue Culture
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• v.21 no.2
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• pp.69-76
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• 1994

Callus growth and shoot regeneration of Solanum and Lycopersicon depended on genotype, growth regulators, and thiamine concentration. L. peruvianum LA 1277 and L. peruvianum LA 1373 and PI 251301 had the greatest callus growth while L hirsutum LA 1777, L.esculentum 'Diego'and 'Red Plum' had the least callus growth. Lycopersicon penvianum genotypes were superior to L. esculentur genotypes in regenerating plants. MG medium was more effective in regenerating shoots than MS medium. A low level of IAA (0.2mg/L) and high level of BA (2 mg/L) resulted in the greatest shoot regeneration. Shoot growth varied depending on thiamine concentration and genotype. Shoot proliferation of Solanum ptycathum, Solanum nigrum, and L. peruvianum PI 199380 was best on medium with 20 mg/L thiamine. Regeneration of L. peruvianum PI 251301 and PI 128652 was better on medium with 30 and 10mg/L thiamine, respectively.

• Korean Journal of Veterinary Research
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• v.33 no.4
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• pp.649-655
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• 1993

A series of experiments on the effects of ${\gamma}-irradiation$ was performed to reveal the pathogenicity of ${\gamma}-irradiated$ oocysts of E tenella from Cobalt-60 and its progeny. The SPF chickens were inoculated with differnt doses of radiation and inoculum. The level of 100 Gy ${\gamma}-irradiation$ from $^{60}Co$ and the level of inoculum with $1{\times}10^4$ oocysts were recognized more pathogenic than those of the other groups by comparison of body weight gains, blood in feces and lesion scores. The signs of blood in feces, lesion score and the number of excreted oocysts in the feces were revealed as the lowest in the group of the ${\gamma}-irradiated$ oocysts, the average in the group of the 1st and the 3rd progeny, and the highest in the group of non-irradiated oocysts of E $tenell\grave{a}$. The body weight gain of the group immunized with ${\gamma}-irradiated$ oocysts of E tenella was higher than those of the non-irradiated, the 1st and 3rd progeny groups. The body weight gain of the groups immunized with the 1st and the 3rd progeny of E tenella were higher than that of the non-irradiated group. The feed conversion ration of the group immunized with ${\gamma}-irradiated$ oocysts of E tenella was lower than those of the non-irradiated, the 1st and the 3rd progeny groups. The feed conversion ratios of the group immunized with the 1st and 3rd progeny of ${\gamma}-irradiated$ oocysts were lower than that of the group infected with non-irradiated E tenella. The anticoccidial index(ACI 190.6) in the chickens immunized with the ${\gamma}-irradiated$ oocysts of E tenella and those(ACI 142.8 and 107.4) of the 1st and the 3rd progeny groups were higher than that (ACT 87.4) of the group infected with non-irradiated E tenella. It was thought that the pathogenicity of ${\gamma}-irradiated$ E tenella would be recovered according to increase the number of generation passaged in chicken.