. 2020 Nov 19;100(2):1034–1048. doi: 10.1016/j.psj.2020.10.071

Table 2.

Effect of dietary berberine supplementation on the growth performance in yellow-feathered broilers.

Item	Treatment
Item	NC	PC	BBR
BW, g
Day 1	35.56 ± 0.51	36.91 ± 0.31	36.77 ± 0.22
Day 63	1,546.82 ± 31.71^b	1,612.48 ± 13.81^a	1,632.51 ± 13.97^a
ADFI, g/d
1–21 d	26.05 ± 0.23	26.26 ± 0.33	26.85 ± 1.84
22–42 d	67.33 ± 1.17^a,b	65.59 ± 0.85^b	69.18 ± 0.77^a
43–63 d	75.73 ± 1.78^b	79.03 ± 1.37^a,b	86.14 ± 3.94^a
1–63 d	56.31 ± 0.75^b	57.07 ± 0.69^b	62.36 ± 1.06^a
ADG, g/d
1–21 d	16.23 ± 0.08^b	16.93 ± 0.24^a	17.11 ± 0.19^a
22–42 d	29.03 ± 0.55	29.35 ± 1.39	29.85 ± 0.36
43–63 d	24.35 ± 0.92	25.81 ± 0.20	25.30 ± 0.27
1–63 d	23.98 ± 0.50^b	25.01 ± 0.22^a	25.11 ± 0.04^a
F/G, g/g
1–21 d	1.61 ± 0.01^a	1.55 ± 0.02^b	1.59 ± 0.01^a,b
22–42 d	2.29 ± 0.04	2.26 ± 0.11	2.21 ± 0.03
43–63 d	3.12 ± 0.10	2.87 ± 0.14	3.05 ± 0.06
1–63 d	2.35 ± 0.04	2.23 ± 0.03	2.29 ± 0.03

^a,bMeans (n = 6) in the same row with different superscripts differ (P < 0.05).

Abbreviations: BBR, berberine supplementation at 250 mg/kg; F/G, feed to gain ratio; NC, negative control without in-feed antibiotics; PC, positive control containing 200 mg/kg of oxytetracycline calcium +250 mg/kg of nasiheptide.