Table 2.

Experimental design.

240 ducks	120 control	40	10 Gene
			15 E. coli
			15 NDRV
		40	10 Gene
			15 E. coli
			15 NDRV
		40	10 Gene
			15 E. coli
			15 NDRV
	120 DFM	40	10 Gene
			15 E. coli
			15 NDRV
		40	10 Gene
			15 E. coli
			15 NDRV
		40	10 Gene
			15 E. coli
			15 NDRV

Gene: 10 ducks per replicate were randomly chosen for the relative expression of genes.

E. coli: 15 ducks per replicate were randomly challenged with E. coli.

NDRV: 15 ducks per replicate were randomly challenged with NDRV.