鸡霍乱口服弱毒活疫苗免疫对鸡群产蛋量的影响

应用R1-23鸡霍乱口服弱毒活疫苗，分别在苏北地区的四个养禽场的不同品种产蛋鸡群中进行试验，以研究该口服弱毒活疫苗免疫接种后对鸡群产蛋量的影响。结果表明，产蛋鸡群口服该弱毒活疫苗后，对产蛋率没有明显影响，整体统计结果为十0.04％。但就某一鸡群而言，服苗后可能发生产蛋率下降，幅度在0.16％～0.83％之间，这主要取决于鸡的品种、产蛋周龄，鸡群健康状况以及饲养管理水平。

The Effect on Egg Production for the Oral fowl Cholera Valline

The layers of the four poultry farms in the north region of Jiangsu Province were experimented with the oral fowl cholera Vaccine R1 - 23 strain for study the effect on egg production. The results showed that the egg production there was no obvious fluctuate atter take the vaccine orally immunity. For some special case, the egg production may be dropped percent 0. 16 to 0. 83. The dropped degree depended on the chicken's strain, weeks, healthy condition and the levels of management.