Table 1 Effect of eugenol essential oil on the growth performance of chickens (n = 10)

G1a

1,501

3,081

150.10 ± 11.15^a

308.10 ± 44.46^a

1,580

2,883

1.825

103.26

G2a

1,496

3,036

149.60 ± 10.44^a

303.60 ± 39.30^a

1,540

2,780

1.805

100.65

G3a

1,496

3,103

149.60 ± 10.37^a

310.30 ± 38.66^a

1,607

2,877

1.790

105.03

G4a

1,503

3,033

150.30 ± 11.72^a

303.30 ± 58.21^a

1,530

2,820

1.843

100.00

G1b

1,498

5,354

149.80 ± 10.92^a

535.40 ± 73.65^b

3,856

7,534

1.954

99.51

G2b

1,497

5,319

149.70 ± 10.46^a

531.90 ± 84.32^b

3,822

7,710

2.017

98.63

G3b

1,494

5,004

149.40 ± 10.72^a

500.40 ± 72.59^b

3,510

7,031

2.003

90.58

G4b

1,502

5,377

150.20 ± 11.29^a

537.70 ± 72.77^b

3,875

7,440

1.920

100.00