지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
An experiment was conducted to examine the efficacy of spray vaccination against Newcastle disease(ND).
Four different coarse sprayers and four different diluents were compared in particle size, immune response and respiratory reaction. The smaller particle size of spray~r was, the better efficacy was and the more respiratory reactions were appeared.
Of four diluents, antibody responses and resistance to challenge were higher with skim milk and gelatin, respectively.
When day-old broiler chicks with maternal antibodies were vaccinated by coarse, sprayer B with B₁ strain diluted in 1% skim milk, they showed 100% protection at two weeks of age and 50% from 4 to 8 weeks of age. Another group which boostered at 2 weeks of age by drinking water vaccination showed 100%, 70%, 50%, 40% protection at 2, 4, 6, 8 weeks of age, respectively.
Although spray vaccination against ND in this experiments showed similar efficacy, compared to conventional methods, this method may not be appropriate in our field condition because of respiratory vaccinal reaction.
Four different coarse sprayers and four different diluents were compared in particle size, immune response and respiratory reaction. The smaller particle size of spray~r was, the better efficacy was and the more respiratory reactions were appeared.
Of four diluents, antibody responses and resistance to challenge were higher with skim milk and gelatin, respectively.
When day-old broiler chicks with maternal antibodies were vaccinated by coarse, sprayer B with B₁ strain diluted in 1% skim milk, they showed 100% protection at two weeks of age and 50% from 4 to 8 weeks of age. Another group which boostered at 2 weeks of age by drinking water vaccination showed 100%, 70%, 50%, 40% protection at 2, 4, 6, 8 weeks of age, respectively.
Although spray vaccination against ND in this experiments showed similar efficacy, compared to conventional methods, this method may not be appropriate in our field condition because of respiratory vaccinal reaction.
목차
SUMMARY
Ⅰ. 緖論
Ⅱ. 材料 및 方法
Ⅲ. 結果
Ⅳ. 考察
Ⅴ. 引用文獻
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UCI(KEPA) : I410-ECN-0101-2009-527-015200090