Table 6 Effects of dietary Clostridium butyricum (CB) and rumen protected fat (RPF) on amino acid composition in Longissimus thoracis of goats, % of dry meat weight

Arginine (Arg)

4.52

4.89

5.24

5.04

0.159

0.013

0.587

0.088

Histidine (His)

2.35

2.34

2.55

2.53

0.084

0.035

0.834

0.996

Isoleucine (Ile)

3.26

3.56

3.27

3.32

0.084

0.204

0.049

0.141

Leucine (Leu)

6.04

6.05

6.18

6.41

0.249

0.329

0.637

0.661

Lysine (Lys)

6.37^b

6.74^b

8.77^a

6.52^b

0.394

0.011

0.003

0.003

Methionine (Met)

1.96

1.90

1.99

1.92

0.063

0.686

0.282

0.874

Phenylalanine (Phe)

2.99

3.10

2.96

3.19

0.110

0.810

0.146

0.570

Threonine (Thr)

3.21

3.23

3.61

3.43

0.126

0.026

0.520

0.449

Valine (Val)

3.59

3.53

3.62

3.62

0.119

0.612

0.832

0.784

EAA¹

34.3

35.3

38.2

36.0

1.05

0.027

0.544

0.104

Glycine (Gly)

4.04

4.38

4.25

4.44

0.266

0.613

0.336

0.785

Alanine (Ala)

4.95

5.05

4.88

5.54

0.340

0.549

0.280

0.416

Serine (Ser)

2.67

2.68

3.04

2.81

0.096

0.018

0.253

0.230

Proline (Pro)

3.30

3.25

3.03

3.52

0.151

0.972

0.164

0.085

Aspartic acid (Asp)

6.49

6.57

7.38

6.86

0.240

0.023

0.367

0.226

Glutamic acid (Glu)

11.5

11.2

12.1

11.9

0.325

0.047

0.456

0.901

Tyrosine (Tyr)

2.74

3.01

2.41

2.81

0.158

0.109

0.044

0.709

NEAA²

35.7

36.1

37.1

37.9

0.835

0.065

0.481

0.830

FAA³

31.5

32.1

33.9

33.8

0.722

0.010

0.723

0.648

TAA⁴

70.0

71.4

75.3

73.9

1.59

0.024

0.987

0.369