Investigating the effects of peptide-based, MOS and protease feed additives on the growth performance and fecal microbial composition of weaned pigs

Table 2 Growth performance of weaned pigs under four different dietary treatments

	Con	PepM¹	PepM_Pro²	PepM_Pro(90)³	SEM	P-value
BW, kg
d 0	6.9	6.8	6.9	7.0	0.11	0.453
d 14	12.4	12.4	12.4	12.4	0.18	0.791
d 35	23.8	24.2	24.4	23.7	0.23	0.139
d 49	35.1	35.0	35.4	34.6	0.27	0.196
ADG, kg/d
d 0-14	0.355	0.359	0.357	0.360	0.012	0.985
d 15-35	0.534^b	0.558^a,b	0.568^a	0.536^b	0.010	0.017
d 36-49	0.851	0.829	0.833	0.823	0.017	0.404
d 0-35	0.443	0.458	0.461	0.447	0.007	0.204
d 0-49	0.563	0.569	0.574	0.558	0.006	0.259
ADF, kg/d
d 0-14	0.349	0.342	0.371	0.383	0.013	0.133
d 15-35	0.875	0.809	0.842	0.817	0.028	0.296
d 36-49	1.303^a	1.429^b	1.419^a,b	1.437^b	0.044	0.050
d 0-35	0.611	0.575	0.606	0.600	0.016	0.364
d 0-49	0.847	0.863	0.882	0.883	0.011	0.089
g:f, kg:kg
d 0-14	1.009^x,y	1.100^x	0.962^x,y	0.921^y	0.050	0.082
d 15-35	0.603^a	0.707^b	0.674^a,b	0.657^a,b	0.028	0.028
d 36-49	0.652^a	0.583^b	0.591^b	0.579^b	0.016	0.007
d 0-35	0.726^a	0.819^b	0.765^a,b	0.745^a,b	0.020	0.009
d 0-49	0.666^a	0.662^a	0.653^a,b	0.633^b	0.007	0.007

Experimental diets (Phase II and Phase III) were fed for 35 d (indicated as d 0–35, corresponding to d 7 to d 42 post-weaning), followed by a common diet for 14 d (indicated as d 36–49)
Means with different superscripts within a row were found to be different at a significance threshold of P ≤ 0.05 (^a,b) or to show a tendency when at 0.05 < P < 0.10 (x,y), based on the Tukey honest significant difference test
¹Control diet supplemented with Peptiva and MOS (formulated to provide 100% of required amino acids for weaned pigs – NRC 2012)
²Control diet supplemented with Peptiva, MOS and a protease (formulated to provide 100% of required amino acids for weaned pigs – NRC 2012)
³Control diet supplemented with Peptiva, MOS and a protease (formulated to provide 90% of required amino acids for weaned pigs – NRC 2012)

ISSN: 2049-1891