Response to an Escherichia coli K88 oral challenge and productivity of weanling pigs receiving a dietary nucleotides supplement

Table 7 The effects of dietary nucleotides supplementation on growth performance of weaned pigs (Exp. 2)^a

Item	CON	R150	R220	R275	SEM^b	Contrast^c
Item	CON	R150	R220	R275	SEM^b	1	2	3
Body weight, kg
day 1	8.40	8.40	8.40	8.40	0.01	0.94	0.87	0.74
day 14	13.14	13.27	13.18	13.42	0.11	0.49	0.66	0.51
day 42	23.16	24.10	25.01	25.50	1.21	0.02	0.12	0.27
Before challenge (d 1 to 14)
ADG, g	339	348	341	359	13	0.07	0.11	0.17
ADFI, g	484	496	491	506	7	0.65	0.42	0.27
G/F	0.700	0.702	0.695	0.709	0.06	0.57	0.43	0.22
After challenge (d 15 to 42)
ADG, g	357	387	423	431	23	<0.001	0.01	0.33
ADFI, g	566	583	617	626	29	0.03	0.01	0.53
G/F	0.631	0.664	0.686	0.688	0.019	<0.001	0.08	0.77
Overall (d 1 to 42)
ADG, g	351	374	395	407	20	<0.001	0.01	0.09
ADFI, g	525	540	554	566	11	0.09	0.12	0.60
G/F	0.669	0.693	0.713	0.719	0.016	<0.001	0.06	0.72

^aAbbreviation: CON basal diet, R150 basal diet + nucleotides 150 mg/kg, R220 basal diet + nucleotides 220 mg/kg, R275 basal diet + nucleotides 275 mg/kg
^bStandard error mean
^cContrast: 1) CON vs. mean of nucleotide groups; 2) R150 vs. R275; 3) R220 vs. mean of R150 and R275

ISSN: 2049-1891