Dietary inclusion of Peptiva, a peptide-based feed additive, can accelerate the maturation of the fecal bacterial microbiome in weaned pigs

Table 1 Growth performance of weaned pigs fed diets containing Peptiva formulated at 100 (PEP) or 90% (PEP-10) of amino acid requirements (NRC (2012)¹

	Control	PEP	PEP-10	SEM	P-value
Body weight, kg
d0	5.9	5.8	5.7	0.1	0.602
d6	6.2	6.2	6.2	0.2	0.948
d13	7.8	7.7	7.6	0.1	0.267
d20	10.4	10.2	9.9	0.3	0.396
d27	12.6^a	12.4^ab	12.1^b	0.2	0.067
d34	16.2^a	15.8^ab	15.2^b	0.2	0.011
d41	20.8^a	20.5^ab	19.4^b	0.3	0.008
Average daily gain, kg/d
d0 – d7	0.063	0.054	0.062	0.024	0.958
d8 – d21	0.256	0.253	0.234	0.014	0.476
d22 – d42	0.471	0.469	0.440	0.019	0.415
Average daily feed intake, kg/d
d0 – d7	0.108	0.096	0.097	0.014	0.797
d8 – d21	0.309	0.300	0.294	0.022	0.892
d22 – d42	0.659^a	0.614^b	0.633^ab	0.012	0.034
Gain:feed, kg:kg
d0 – d7	0.54	0.52	0.60	0.16	0.928
d8 – d21	0.81	0.83	0.76	0.05	0.528
d22 – d42	0.71	0.78	0.70	0.03	0.180
Pigs removed, #/pen	2.4	1.9	2.0	0.42	0.700
Total removed, #	36	35	26
Total started, #	360	383	360
Removal, %	10	9.1	7.2
Pen coefficient of variation
d0	0.230	0.199	0.226	0.011	0.083
d21	0.248	0.247	0.249	0.021	0.999
d42	0.240	0.242	0.269	0.021	0.545

¹Experimental diets were provided as part of a 3-phase nursery pig feeding program (Phase 1: 0-7d; Phase 2: 8-21d; Phase 3: 22-42d). Peptiva was included at 1.0, 0.5, and 0.3%, respectively). A total of 46 pens of 24 pigs/pen were included in the analysis (n = 16, 15, and 15 pens for CON, PEP, and PEP-10, respectively)
Means in the same row with different superscripts are significantly different as determined by the Tukey honest significant difference test

ISSN: 1746-6148