Kosugi Y, Baba E, Fukata T, Arakawa A
Avian Dis. 1986 Apr-Jun;30(2):313-8.
The effects of concurrent cage contamination with Salmonella typhimurium and Eimeria tenella on the establishment of salmonella infection in day-old chickens were investigated. Chickens were divided into five groups: uninfected recipient birds placed in a cage contaminated by donor birds infected with E. tenella and S. typhimurium; E. tenella-infected recipients placed in a cage contaminated by S. typhimurium-infected donors; uninfected recipients placed in a cage contaminated by S. typhimurium-infected donors; E. tenella-infected recipients placed in a cage contaminated by uninfected donors; and uninfected recipients placed in a cage contaminated by uninfected donors. Three identical trials were conducted. Recipient birds were necropsied 4, 7, and 11 days after caging. In the cage where donor birds infected with both organisms had been reared, S. typhimurium counts in feces and number of feces positive for S. typhimurium were significantly (P less than 0.05) greater than those in the other cages on days 0, 4, and 7 after caging. Moreover, in this cage, more chicks died, counts of S. typhimurium in cecal contents were greater, and more birds were positive for S. typhimurium than in the other groups. This suggests that S. typhimurium infection in day-old chickens is enhanced in cages contaminated with E. tenella and S. typhimurium compared with infection in cages contaminated with S. typhimurium alone.
研究了鼠伤寒沙门氏菌和柔嫩艾美耳球虫同时污染鸡笼对1日龄雏鸡沙门氏菌感染定植的影响。雏鸡被分为五组：未感染的受体雏鸡置于被感染柔嫩艾美耳球虫和鼠伤寒沙门氏菌的供体雏鸡污染的鸡笼中；感染柔嫩艾美耳球虫的受体雏鸡置于被感染鼠伤寒沙门氏菌的供体雏鸡污染的鸡笼中；未感染的受体雏鸡置于被感染鼠伤寒沙门氏菌的供体雏鸡污染的鸡笼中；感染柔嫩艾美耳球虫的受体雏鸡置于未感染的供体雏鸡污染的鸡笼中；未感染的受体雏鸡置于未感染的供体雏鸡污染的鸡笼中。进行了三项相同的试验。受体雏鸡在入笼后4天、7天和11天进行剖检。在饲养过感染两种病原体的供体雏鸡的鸡笼中，入笼后第0天、4天和7天，粪便中鼠伤寒沙门氏菌计数以及鼠伤寒沙门氏菌粪便阳性数均显著（P<0.05）高于其他鸡笼。此外，在这个鸡笼中，死亡的雏鸡更多，盲肠内容物中鼠伤寒沙门氏菌计数更高，且感染鼠伤寒沙门氏菌呈阳性的雏鸡比其他组更多。这表明，与仅被鼠伤寒沙门氏菌污染的鸡笼相比，在被柔嫩艾美耳球虫和鼠伤寒沙门氏菌污染的鸡笼中，1日龄雏鸡的鼠伤寒沙门氏菌感染增强。
