Impacts of weaning weights and mycotoxin challenges on jejunal mucosa-associated microbiota, intestinal and systemic health, and growth performance of nursery pigs

Table 3 Growth performance of pigs with different weaning weights and mycotoxin challenges

Weaning weight (WW)	< 7.5 kg		> 9.0 kg		SEM	P-value
Mycotoxin¹ (MTX)	–	+	–	+	SEM	WW	MTX	WW vs. MTX
Body weight, kg
d 0	6.9	6.9	9.8	9.8	0.2	< 0.001	0.974	0.961
Phase 1	10.5	10.1	11.3	11.1	0.2	0.029	0.435	0.756
Phase 2	22.4	19.8	21.2	19.7	0.8	0.422	0.015	0.508
ADG, g
Phase 1	257	228	371	326	32	0.002	0.259	0.800
Phase 2	686	572	584	508	34	0.006	0.002	0.524
Overall	498	416	544	473	30	0.054	0.006	0.836
ADFI, g
Phase 1	373	316	532	498	32	< 0.001	0.168	0.727
Phase 2	1038	807	842	719	50	< 0.001	< 0.001	0.129
Overall	737	585	783	677	38	0.033	< 0.001	0.452
G/F
Phase 1	0.70	0.70	0.70	0.66	0.05	0.639	0.615	0.648
Phase 2	0.67	0.71	0.69	0.71	0.02	0.687	0.119	0.444
Overall	0.67	0.71	0.68	0.70	0.01	0.945	0.055	0.469

¹Dietary treatments were based on 2 phases: phase 1 from d 0 until animals achieved 11 kg of body weight (4 d for pig weaning weight > 9 kg and 14 d for pig weaning weight < 7.5 kg) and phase 2 until pigs achieved 20 kg of body weight (17 d for both weaning weight groups).ADG, average daily gain; ADFI, average daily feed intake; G/F, gain to feed ratio

ISSN: 2049-1891