Table 6 Effect of different litter materials on carcass parameters of Muscovy ducks at the end of growing period

Live body weight (g)

3189.00 ± 268.77

3303.00 ± 268.77

3179.00 ± 268.77

3400.00 ± 268.77

0.92

Carcass weight (g)

2190.00 ± 190.23

2276.00 ± 190.23

2259.00 ± 190.23

2290.00 ± 190.23

0.98

Dressing %

68.67 ± 1.73

68.90 ± 1.73

71.06 ± 1.73

67.35 ± 1.73

0.63

Heart (g)

17.64 ± 1.37

18.76 ± 1.37

19.38 ± 1.37

20.54 ± 1.37

0.52

Liver (g)

76.76 ± 9.81

87.26 ± 9.81

63.84 ± 9.81

73.30 ± 9.81

0.42

Gizzard (g)

65.63 ± 5.73

81.78 ± 5.73

73.67 ± 5.73

75.28 ± 5.73

0.28

Spleen (g)

3.05 ± 0.40

3.04 ± 0.40

3.08 ± 0.40

3.03 ± 0.40

1.00

Thymus (g)

12.60^b ± 1.30

16.85^a ± 1.30

15.19^ab ± 1.30

18.16^a ± 1.30

0.03

Bursa of fabricious (g)

2.33 ± 0.85

2.04 ± 0.85

4.00 ± 0.85

3.76 ± 0.85

0.27

Abdominal fat (g)

32.19^ab ± 3.13

35.45^a ± 3.13

23.25^b ± 3.13

27.40^ab ± 3.13

0.05