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Table 3 Effects of tannic acid on the growth performance of broilers with NE

From: Effects of tannic acid on the immunity and intestinal health of broiler chickens with necrotic enteritis infection

 

NC

PC

PTA1

PTA2

PTA3

PTA4

P-value1

Linear2

Quadratic2

Bod Weight, g

 d 19

745.1 ± 6.0c

759.8 ± 7.5c

794.3 ± 6.4ab

801.2 ± 6.2ab

815.1 ± 11.3a

791.1 ± 5.6b

< 0.001

0.002

0.001

 d 28

1,486.6 ± 12.4a

1,396.2 ± 8.8c

1,423.4 ± 7.9bc

1,430.7 ± 15.0bc

1,460.1 ± 19.5ab

1,414.8 ± 15.2c

0.001

0.105

0.025

 d 35

2,011.7 ± 29.7

1,970.3 ± 12.0

2,010.5 ± 25.0

2,036.2 ± 24.2

2,050.3 ± 13.8

2,043.1 ± 16.0

0.111

0.004

0.145

F/G

 d 1–19

1.330 ± 0.013a

1.340 ± 0.016a

1.310 ± 0.008ab

1.270 ± 0.024b

1.280 ± 0.018b

1.300 ± 0.016ab

0.013

0.055

0.012

 d 1–28

1.390 ± 0.004c

1.440 ± 0.008a

1.410 ± 0.007bc

1.420 ± 0.005ab

1.410 ± 0.012bc

1.430 ± 0.005a

 < 0.001

0.612

0.009

 d 1–35

1.530 ± 0.011b

1.570 ± 0.002a

1.540 ± 0.010ab

1.530 ± 0.010b

1.530 ± 0.010b

1.540 ± 0.004ab

0.022

0.017

0.007

mortality, %

1.90 ± 1.23

4.76 ± 1.90

1.90 ± 1.23

0.95 ± 0.95

2.86 ± 1.98

1.90 ± 1.23

0.768

-

-

  1. n = 7. Data are the mean ± SEM. NC no tannic acid treatment or NE infection, PC NE infection + 0 mg/kg tannic acid, PTA1 NE infection + 250 mg/kg tannic acid, PTA2 NE infection + 500 mg/kg tannic acid, PTA3 NE infection + 750 mg/kg tannic acid, PTA4 NE infection + 1,000 mg/kg tannic acid
  2. 1Body weight and F/G P values obtained from ANOVA; the P-value of mortality was obtained by chi-square test; 2P-values obtained using contrast trend analysis. a–cDifferent lower case letters in the same column indicate significant differences (P < 0.05)