Truscott R B, Friars G W
Can J Comp Med. 1972 Jan;36(1):64-8.
Turkey hens were vaccinated six times with Salmonella typhimurium endotoxin prior to and during their egg production cycle. The resultant poults possessed a significant degree of immunity to challenge with S. typhimurium.
在产蛋周期之前及期间,给母火鸡接种了六次鼠伤寒沙门氏菌内毒素。所产火鸡幼雏对鼠伤寒沙门氏菌的攻击具有显著程度的免疫力。