|  | Duodenum |  | Jejunum |  | Ileum |
---|
Groups | Â | Villi length | Crypt depth | C/V | Â | Villi length | Crypt depth | C/V | Â | Villi length | Crypt depth | C/V |
T1 | Â | 833c | 81c | 10.2 | Â | 817c | 89 | 9.1 | Â | 757c | 80b | 9.4 |
T2 | Â | 1100b | 104b | 10.0 | Â | 957c | 116 | 8.2 | Â | 910b | 91b | 10.0 |
T3 | Â | 1067b | 99bc | 10.1 | Â | 813c | 123 | 6.6 | Â | 930b | 101b | 9.2 |
T4 | Â | 1200ab | 100bc | 12.0 | Â | 1100b | 120 | 6.0 | Â | 1077ab | 118b | 9.1 |
T5 | Â | 1433a | 121a | 11.0 | Â | 1337a | 132 | 10.0 | Â | 1233a | 131a | 9.4 |
SEM1 | Â | 65.20 | 3.40 | 0.40 | Â | 58.90 | 3.80 | 0.60 | Â | 52.30 | 4.80 | 0.33 |
P-value | Â | 0.020 | 0.050 | 0.836 | Â | 0.0001 | 0.400 | 0.529 | Â | 0.030 | 0.020 | 0.982 |
- a,b,c Mean values with different superscripts in the same column indicate significant difference (Tukey’s test; P ≤ 0.05)
- T1: Control - basal diet; T2: Butirex C4 1 kg/ton in starter feed (0–15 d) and then 0.5 kg/ton in grower and finisher feed; T3: Lincomix recommended dose (100 g/ton); T4: Lincomix half the recommended dose (50 g/ton) + Butirex C4 0.5 kg/ton at 0–15 d and then 0.25 kg/ton; T5: Lincomix half the recommended dose (50 g/ton) + Butirex C4 1 kg/ton at 0–15 d and then 0.5 kg/ton
- C/V: Crypt/Villus ratio
- 1 SEM: Standard error of mean
- Number of sampled birds (N) = 5 birds/group