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

Table 2 The effects of dietary nucleotides supplementation on growth performance of weaned pigs (Exp. 1)^a

Item	CON	R150	R220	R275	SEM^b	Contrast^c
Item	CON	R150	R220	R275	SEM^b	1	2	3
Body weight, kg
d 1	8.33	8.33	8.34	8.34	0.04	0.44	0.68	0.16
d 7	11.75	11.96	12.04	12.02	0.11	0.06	0.69	0.75
d 21	16.92	17.22	17.48	17.56	0.23	0.08	0.32	0.76
d 42	24.74	25.26	25.65	25.88	0.34	0.04	0.21	0.85
Phase 1 (d 1 to 7)
ADG, g	244	259	264	264	8	0.07	0.69	0.79
ADFI, g	300	306	314	310	4	0.05	0.54	0.25
G/F	0.809	0.846	0.840	0.854	0.028	0.26	0.83	0.78
Phase 2 (d 8 to 21)
ADG, g	370	376	389	396	15	0.34	0.37	0.87
ADFI, g	618	611	603	609	9	0.32	0.86	0.49
G/F	0.601	0.616	0.65	0.655	0.025	0.19	0.28	0.64
Phase 3 (d 22 to 42)
ADG, g	559	574	584	595	16	0.20	0.39	0.97
ADFI, g	850	850	844	852	3	0.59	0.59	0.06
G/F	0.657	0.676	0.691	0.699	0.020	0.18	0.43	0.87
Overall (d 1 to 42)
ADG, g	391	403	412	418	8	0.04	0.21	0.85
ADFI, g	590	589	587	590	3	0.73	0.79	0.42
G/F	0.663	0.684	0.703	0.709	0.013	0.03	0.21	0.71

^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