an increasing trendp = 0.078
Crypt depth showed an increasing trend due to the synbiotic administration on day 4 PI in the Salmonella trial ( p = 0.078), but, contrarily, a decreasing one on day 3 in the ETEC F4 trial ( p = 0.081).
Crypt depth showed an increasing trend due to the synbiotic administration on day 4 PI in the Salmonella trial ( p = 0.078), but, contrarily, a decreasing one on day 3 in the ETEC F4 trial ( p = 0.081).
Regarding TNF-α, animals challenged with ETEC F4 presented higher concentrations than non-challenged pigs on day 7 PI (58.9, 57.2, 48.1 and 43.1 pg./ml for IC, IS, NIC and NIS, respectively; p = 0.010) and a similar pattern was found after the Salmonella challenge, although in this case, the differences did not reach statistical significance (125, 135, 124 and 101 pg./ml for IC, IS, NIC and NIS, respectively, day 8 PI; p = 0.132).
The effects of the ETEC F4 challenge were milder, with only a numerical trend seen for a lower ADFI in the post-inoculation period (333.65 vs. 367.95 g for challenged and non-challenged groups, respectively, p = 0.152).