Reference | JAWJGAW6 (32)

The broiler chickens in this study were raised under standardised husbandry conditions on the Farm for Education and Research in Ruthe, University of Veterinary Medicine Hannover, Foundation, Germany. The animals were housed in two adjacent buildings, one for the control and one for the experimental groups. The poultry stable was equipped with a gas air-heating system and an automatic temperature, humidity and weight control assembly. The feeding and drinking areas were equipped with a common feed pan system (Big Dutchman International GmbH, Vechta, Germany). A common drinking water system with nipple drinkers for broilers was used (Big Dutchman International GmbH, Vechta, Germany). Dust-free wood shavings were used as litter material and sanitised straw bundles as perching material. Before beginning with the trials, stable floors and all materials had been disinfected as well as screening tests for Enterobacteriaceae had been carried out to confirm that they were free of contamination

Two consecutive trials were conducted with 15,000 birds each. The birds were reared with a stocking density in accordance with German regulations. The experiments started with 1-dayold broiler chickens (as hatched; Ross 308; N = 30,000).

AST Method: Broth Microdilution

Reference explicitly reports AST breakpoints: None

Reference reports using a MIC table: None