鸡新城疫-传染性法氏囊病二联灭活疫苗对SPF鸡和商品肉鸡的免疫效果观察 |
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引用本文: | 詹先强.鸡新城疫-传染性法氏囊病二联灭活疫苗对SPF鸡和商品肉鸡的免疫效果观察[J].福建畜牧兽医,2016(3):17-19. |
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作者姓名: | 詹先强 |
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作者单位: | 福州大北农生物技术有限公司 福州 350014 |
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基金项目: | 国家星火计划项目“鸡新城疫、传染性法氏囊病二联灭活疫苗产业化示范”(S2015C400020)资助。 |
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摘 要: | 用鸡新城疫-传染性法氏囊病二联灭活疫苗(La Sota+HQ株)分别免疫1、7、14日龄SPF雏鸡,1日龄免疫组于25日龄采血,法氏囊病中和抗体几何平均值为15.5log2,攻毒保护10/10;7日龄免疫组于30日龄采血,法氏囊病中和抗体几何平均值为14.8log2,攻毒保护10/10;14日龄免疫组于35日龄采血,法氏囊病中和抗体几何平均值为15.4log2,攻毒保护10/10。3组在50日龄时法氏囊病中和抗体几何平均值依次为16log2、16.1log2、15.9log2,攻毒保护均为10/10。用鸡新城疫-传染性法氏囊病二联灭活疫苗(La Sota+HQ株)免疫带有母源抗体的1、7、14日龄商品肉鸡,免后25 d血清法氏囊病中和抗体几何平均值分别为12.4log2、15log2、14.2log2,攻毒保护分别为8/10、10/10、9/10;3组在50日龄时法氏囊病中和抗体几何平均值依次为16.2log2、15.7log2、15.5log2,攻毒保护均为10/10。
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关 键 词: | 免疫 中和抗体 攻毒保护 |
The immune effect of duplex inactivated vaccines of newcastle disease and infectious bursal disease on SPF chicken and commercial broiler |
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Abstract: | 1, 7, 14 days of age SPF chicken are respectively vaccinated with a new, efficient inactivated vaccine of infectious bursal disease, and group 1 of chicken immune at 1 day-age, blood collecting at 25 days-age, the neutralizing antibody is up to15.5log2, poison attack protection reaches 10/10; group 2 of chicken immune at 7 days-age, blood collecting at 30 days-age, the neutralizing antibody is up to 14.8log2, poison attack protection reaches 10/10; group 3 of chicken immune at 14 days-age, blood collecting at 35 days-age, the neutralizing antibody is up to 15.4log2, poison attack protection reaches 10/10.At 50 days-age of three groups chickenˊs neutralizing antibody are respectively up to16log2,16.1log2 and15.9log2, and poison attack protection all reaches 10/10. A new, effi-cient inactivated vaccine immune 1, 7, 14 days old commercial broilers with maternal antibody, after 25 days, sera-neutralizing anti-bodies are respectively up to 12.4log2, 15log2 and 14.2log2, poison attack protection respectively reach 8/10, 10/10 and 9/10; Three groups commercial broilers at the age of 50 days,their neutralizing antibody titers are respectively up to16.2log2,15.7log2,15.5log2, and poison attack protection reaches all 10/10. |
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Keywords: | Immune Neutralizing antibody Protective efficiency |
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