The Effect of Two Combinations of Direct Fed Microbials on Growth Performance of Nursery Pigs Weaned from Sows Fed Diets with or without Yeast Additives

A total of 330 weaned pigs (Line 241 × 600, DNA; initially 12.7 lb BW) were used in a 38-d nursery study to evaluate previous sow treatment (control vs. yeast additives) and diets with different combinations direct fed microbials (DFMs; Phileo by Lesaffre, Milwaukee, WI) on pig growth performance. Pigs placed pens across two rooms at weaning then assigned 1 3 dietary treatments 6 per pen 8 10 replications treatment. Treatments arranged 2 factorial main effects additives; 0.10% ActiSaf Sc 47 HR+ 0.025% SafMannan) (control; DFM 1, 0.05% SafMannan from d 0 38 NucleoSaf 24; or 2, MicroSaf 24). Data analyzed using linear mixed models the nlme package R fixed treatment, their interaction, room serving as random effect. During first ten days post-weaning, progeny sows additives had improved (P < 0.05) ADG, ADFI, G:F. In fact, while entered lighter 0.001) BW compared control diet, there was no difference > 0.10) between groups. Offspring tended have = 0.069) overall F/G. increased ADG 24 38, end diet. conclusion, feeding positive impact early nursery, addition DFMs more later period.