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Table 1 Effect of different doses of Lactobacillus reuteri, and a mixture of reuterin and microcin J25 on growth performance of broiler chickens from d 0 to 35 of experiment

From: Effects of drinking water supplementation with Lactobacillus reuteri, and a mixture of reuterin and microcin J25 on the growth performance, caecal microbiota and selected metabolites of broiler chickens

Variables

Treatments

  

PC

NC

1RJ

5RJ

10RJ

E6Lr

E7Lr

E8Lr

SEM

P-value

Feed intake, kg

 d 0 to d 10

0.29a

0.27bc

0.28ab

0.28ab

0.29a

0.26cd

0.26d

0.26cd

0.004

<.0001

 d 11 to d 22

1.18a

1.09c

1.12abc

1.13abc

1.15ab

1.12bc

1.09c

1.09c

0.013

<.0001

 d 0 to d 22

1.47a

1.36cd

1.40bcd

1.41abc

1.44ab

1.38bcd

1.34d

1.35cd

0.015

<.0001

 d 23 to d 35

2.41a

2.28b

2.37ab

2.32ab

2.40a

2.33ab

2.28b

2.35ab

0.027

0.001

 d 0 to d 35

3.87a

3.64c

3.77abc

3.73bc

3.83ab

3.71bc

3.63c

3.70bc

0.037

<.0001

Body weight, kg

 d 0

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.0002

0.350

 d 7

0.20a

0.19abc

0.20ab

0.19abc

0.20a

0.18c

0.19bc

0.19c

0.004

<.0001

 d 10

0.31a

0.30c

0.30bc

0.30bc

0.31ab

0.30bc

0.30c

0.30abc

0.004

0.0002

 d 22

1.19a

1.12c

1.13bc

1.15abc

1.17ab

1.13c

1.12c

1.13c

0.017

<.0001

 d 35

2.82a

2.65c

2.73abc

2.68bc

2.77ab

2.70bc

2.67bc

2.70bc

0.026

0.0001

Average daily gain, g

 d 0 to d 7

22.3a

21.0bcd

21.4abc

21.3abcd

22.2ab

19.5d

20.2cd

20.2d

0.53

<.0001

 d 8 to d 10

37.8abc

34.5c

35.4bc

36.0bc

37.2abc

39.9a

36.8abc

38.7ab

0.84

0.0001

 d 0 to d 10

27.0a

25.1c

25.6bc

25.7abc

26.7ab

25.6abc

25.2cd

25.7abc

0.35

0.0001

 d 11 to d 22

72.7a

68.9b

68.9b

70.7ab

71.4ab

68.9b

68.4b

68.5b

0.97

0.001

 d 0 to d 22

51.9a

49.0c

49.3bc

50.3abc

51.1ab

49.2bc

48.8c

49.1bc

0.63

<.0001

 d 23 to d 35

125.2a

117.6b

123.0ab

117.3b

123.3ab

120.9ab

119.3ab

121.0ab

1.47

0.003

 d 0 to d 35

79.1a

74.5c

76.7abc

75.2bc

77.9ab

75.9bc

75.0bc

75.8bc

0.74

0.0001

Feed conversion ratio, g:g

 d 0 to d 10

1.10b

1.12b

1.12b

1.12b

1.10b

1.04a

1.06a

1.05a

0.006

<.0001

 d 11 to d 22

1.50a

1.54b

1.52ab

1.51ab

1.51ab

1.49a

1.49a

1.51ab

0.010

0.012

 d 0 to d 22

1.39abc

1.42d

1.41cd

1.40bcd

1.40abcd

1.37a

1.38ab

1.39abc

0.007

<.0001

 d 23 to d 35

1.50

1.50

1.51

1.53

1.52

1.50

1.50

1.50

0.013

0.088

 d 0 to d 35

1.45abc

1.47abc

1.47abc

1.47c

1.47bc

1.45ab

1.45a

1.45abc

0.005

0.001

Mortality, %

 d 0 to d 7

5.5

6.6

6.6

4.0

4.4

4.8

7.7

7.7

1.6

0.425

 d 8 to d 10

1.0

2.0

2.0

2.3

1.3

1.0

1.6

1.3

1.0

0.856

 d 11 to d 22

3.7ab

9.2b

4.0ab

6.6ab

5.2ab

2.6a

5.2ab

5.9ab

1.8

0.038

 d 23 to d 35

2.4

1.7

0.7

1.0

2.0

1.7

1.4

1.4

1.0

0.789

 d 0 to d 35

12.9ab

19.9b

13.6ab

14.3ab

13.2ab

10.3a

16.2ab

16.5ab

2.4

0.045

  1. a,b,c,d means in each raw with different superscripts are significantly different (P < 0.05). SEM = standard error of means
  2. PC = antibiotic bacitracin, NC = without antibiotic, 1RJ = 0.5 mmol/L reuterin and 0.008 μmol/L J25, 5RJ = 2.5 mmol/L reuterin and 0.04 μmol/L J25, 10RJ = 5 mmol/L reuterin and 0.08 μmol/L J25, E6Lr = L. reuteri (106 CFU/mL) plus 300 mmol/L glycerol, E7Lr = L. reuteri (107 CFU/mL) plus 300 mmol/L glycerol, E8Lr = L. reuteri (108 CFU/mL) plus 300 mmol/L glycerol. (n = 8 replicates/treatment)