GUSTOR N'RGY improves broilers weight even if BMD is used in the diet

This field study, published in the IPSF 2019, aimed to evaluate the effect of the combined use of Protected Sodium Butyrate (PSB) and Bacitracin Methylene Disalicylate (BMD) on chicken broilers performance. A total of 138,400 one-day-old Cobb chickens were housed in 4 sheds which were randomly distributed into two treatments: CON (fed on the basal diet with 30 mg of BMD / kg of feed) and BUT (fed on the same basal diet with BMD plus 700 mg of protected sodium butyrate (Gustor® N´RGY)/ kg of feed) from 0 to 21 d of the experiment. The study lasted 49 d and the recorded parameters were: feed intake (FI), body weight (BW), average daily gain (ADG), feed conversion ratio (FCR), mortality (M), productivity index (PI) and villi height of duodenum at 20 d (VH). The inclusion of butyrate improved BW at 49 d by 2.54% (2752.5 vs 2822.5 g, for CON and BUT, respectively, P=0.011), and the ADG tended (P=0.079) to be 2.58% lower in CON (56.2 g) vs BUT (57.6 g), however no effect (P>0.05) was observed on FI, FCR, PI. Although, M was numerically higher (+0.6%) in CON (10.1%) vs BUT (9.5%) treatment. Regarding to VH the BUT treatment was 38.95% greater (579.5 µm vs 805.15 µm, for CON and BUT respectively, P=0.010) than the treatment CON. Data prove that the inclusion of protected sodium butyrate combined with BMD improves weight gain and duodenum villi height in broiler chickens