Table 3 Effects of dietary Clostridium butyricum (CB) and rumen protected fat (RPF) on growth performance and carcass traits of goats

Growth performance

 Initial BW, kg

20.7

20.5

21.7

21.7

0.75

0.163

0.865

0.916

 Final BW, kg

30.1

31.5

31.0

31.7

1.23

0.552

0.295

0.733

 DMI, g/d

1010

1137

982

1095

40.6

0.367

0.005

0.852

 ADG, g/d

135.3

158.9

134.3

145.8

8.82

0.430

0.058

0.499

 FCR

7.66

7.22

7.54

7.61

0.410

0.733

0.648

0.519

Carcass traits

 LWBS, kg

29.0^b

31.9^a

32.1^a

32.0^a

1.21

0.030

0.050

0.041

 HCW, kg

13.2

14.6

14.5

14.9

0.68

0.093

0.046

0.258

 Dressing, %

45.5

45.8

45.1

46.5

1.87

0.759

0.580

0.714

 Back fat, mm

2.53

2.77

2.52

2.59

0.066

0.100

0.006

0.980

Organ weight, kg

 Liver

0.46

0.54

0.52

0.52

0.024

0.470

0.151

0.185

 Heart

0.12

0.14

0.14

0.13

0.045

0.847

0.346

0.199

 Spleen

0.04

0.05

0.06

0.06

0.004

0.011

1.000

0.141

 Kidney

0.11

0.12

0.11

0.12

0.010

0.999

0.535

0.754

% of LWBS

 Liver

1.60

1.68

1.61

1.64

0.108

0.877

0.626

0.815

 Heart

0.43

0.45

0.43

0.42

0.024

0.530

0.765

0.533

 Spleen

0.15

016

0.20

0.18

0.015

0.045

0.699

0.400

 Kidney

0.38

0.37

0.35

0.37

0.039

0.617

0.953

0.807