Growth performance and total tract digestibility of nutrients for weanling pigs are improved by an exogenous xylanase and a stimbiotic regardless of maternal xylanase consumption

Table 7 Plasma characteristics and cytokines of pigs (d 28)^1,2

Item	Sow treatment				Post-weaning dietary treatment
Item	Control	Xylanase³	SEM	P-value	Control	Xylanase	Stimbiotic³	SEM	P-value
Plasma urea N, mg/dL	6.00	5.96	0.42	0.944	6.25^xy	5.00^y	6.69^x	0.51	0.062
Total protein, g/dL	5.00	4.81	0.04	0.002	4.81^b	4.89^ab	5.02^a	0.05	0.020
Albumin, g/dL	2.90	2.88	0.08	0.805	2.77^b	2.91^ab	2.99^a	0.08	0.012
Peptide YY, ng/mL	1.24	1.35	0.06	0.162	1.31	1.31	1.27	0.07	0.914
GIP⁴, pg/mL	788.50	839.53	68.61	0.545	797.26	741.32	903.47	75.25	0.203
Cytokine, ng/mL
IFNγ⁴	4.62	4.85	1.04	0.796	5.86	3.61	4.75	1.12	0.123
IL⁴-1α	0.02	0.02	0.01	0.333	0.02^a	0.01^b	0.03^a	0.01	0.011
IL-1β	0.10	0.09	0.01	0.345	0.11^x	0.06^y	0.11^x	0.02	0.051
IL-1RA	0.28	0.18	0.02	0.004	0.24	0.19	0.26	0.03	0.185
IL-2	0.09	0.07	0.02	0.663	0.11^a	0.03^b	0.10^a	0.02	0.027
IL-4	0.25	0.23	0.06	0.862	0.34^a	0.07^b	0.31^a	0.07	0.007
IL-6	0.05	0.03	0.01	0.200	0.05	0.04	0.04	0.01	0.765
IL-8	0.02	0.01	0.00	0.054	0.01	0.02	0.01	0.00	0.513
IL-10	0.32	0.29	0.08	0.672	0.37^a	0.13^b	0.41^a	0.09	0.010
IL-12	0.78	0.74	0.05	0.640	0.71	0.86	0.71	0.06	0.133
IL-18	0.98	0.78	0.13	0.283	0.89	0.77	0.99	0.16	0.638
TNFα⁴	0.05	0.03	0.01	0.103	0.05	0.04	0.04	0.01	0.362

^a,bWithin columns in the post-weaning dietary treatment main effect, values within a row lacking a common superscript differ (P < 0.05)
^x,yWithin columns in the post-weaning dietary treatment main effect, values within a row lacking a common superscript tend to be different (P < 0.10)
¹Data are least square means for each dependent variable represent 18 to 24 observations per sow treatment, and 13 to 16 observations per post-weaning dietary treatment
²There was no interaction between sow treatment and post-weaning dietary treatment for any of the plasma and cytokines parameters, therefore, the interaction term was removed from the final model and only main effects are presented
³Xylanase: Econase XT 25 (160,000 BXU/g); AB Vista, Marlborough, UK; Stimbiotic: Signis; AB Vista, Marlborough, UK
⁴GIP Gastric inhibitory polypeptide, IFNγ Interferon-γ, IL Interleukin, TNFα Tumor necrosis factor-α

ISSN: 2049-1891