Fig. 1
From: Linkage between the intestinal microbiota and residual feed intake in broiler chickens
Production performance of the chickens with extremely high and low RFI values. Male Cobb chickens were individually housed from day 14 to 35 with free access to non-medicated feed. Residual feed intake (RFI) was calculated individually for 56 apparently healthy chickens, from which 15 and 17 chickens with extremely high and low RFI values, respectively, were selected (as shown by dashed lines) (a). RFI (b), body weight (BW) (c), average daily gain (ADG) (d), average daily feed intake (ADFI) (e), and feed conversion ratio (FCR) (f) were calculated for two groups of selected chickens. Statistical significance was determined using Student’s t-test