The Ability of Salmonella Enteritidis Isolated from Chicks Imported from England to Cause Transovarian Infection

[摘要] References(17)Cited-By(8)S. Enteritidis HY-1 isolated during quarantine from chicks imported from England was used. Laying hens at the age of 34 weeks were inoculated orally with 1010 organisms (10 birds), intramuscularly with 109 (5 birds), and intravenously with 109 (5 birds). Egg production did not change in hens infected orally, although it was reduced in hens infected intramuscularly for 2-3 weeks post inoculation. For one month, internally infected eggs of which the shells were not contaminated were found: one out of 65 eggs in hens infected orally and three out of 36 eggs in hens infected intramuscularly. This experiment demonstrated the ability of S. Enteritidis isolated from chicks imported from England to cause transovarian infection.

[学科分类] 兽医学

[关键词] laying-hen;S. Enteritidis;transovarian infection