Table 6.

Effect of drinking water acidification on the mean water intake (WI) and its ratio with feed intake (WI/FI) ($\overline{\mathrm{x}}$ ± SEM) of broiler chicks experimentally challenged by C. jejuni.

Parameter	Period	Experimental Groups
		A	B	C	D	E	F
Water intake/bird (mL)	1–9 d *	74.00			72.93	72.99	81.65
	1–15 d *	100.00			102.05	99.80	109.78
	15–39 d	258.68	260.18	260.07	285.01	287.41	300.58
	1–39 d	177.27	163.14	163.07	178.48	178.28	189.30
Water intake/Average daily feed intake ratio	1–9 d *	2.80			2.74	2.75	3.19
	1–15 d *	2.40			2.66	2.60	2.94
	15–39 d	1.93	2.05	2.01	2.29	2.27	2.33
	1–39 d	2.04	2.03	2.00	2.28	2.26	2.38

Water intake was not evaluated statistically due to the absence of statistical replicates. * For the period 1–18 days, groups A, B, and C were considered as one (controls), as birds in these groups received only tap water (without any treatment), and the challenge by C. jejuni was not yet applied.