Korean Journal of Agricultural Science ISSN:2466-2402(Print) 2466-2410(Online) 농업과학연구

A total of 60 growing pigs (25.50 ± 1.63 kg) were used in a 6-week trial to investigate the effects of diet supplementation with brewer’s yeast (Saccharmyces cerevisiae) on growth performance, nutrient digestibility, and fecal score of growing pigs. Pigs were randomly allocated to one of two dietary treatments [six replications (five pigs·pen-1)] according to initial body weight. The dietary treatments included: 1) control, basal diet (CON); 2) basal diet supplemented with 1% brewer’s yeast. Dietary supplementation with brewer’s yeast showed significant improvement in body weight (BW) at weeks 4 and 6; the average daily gain (ADG) and gain : feed ratio (G/F) was higher during week 4 and overall compared with CON (p < 0.05). Brewer’s yeast supplementation in the diet had no significant on the nutrient digestibility. There was no significant difference in the fecal score of CON and brewer’s yeast supplementation in the diet. In conclusion, the results indicate that dietary supplementation with brewer’s yeast can improve growth performance in growing pigs. The results showed that supplementation of brewer’s yeast in the diet of growing pigs had a positive effect on the ADG in growing pigs, but no significant effect on nutrient digestibility and fecal score when supplemented with brewer’s yeast in the diet of growing pigs.