Impact of Cannabis Seed Incorporation in Layer Diet on Productive Performance and Egg Quality Traits

Table 4

Effect of nonindustrial hemp seed incorporation in the diet of laying hens on physical egg quality during the experimental period.

Parameters

Treatments

Control

HS-10%

HS-20%

HS-30%

W-28

W-32

W-36

W-28

W-32

W-36

W-28

W-32

W-36

W-28

W-32

W-36

Yolk weight (%)

25.61^e ± 1.41

24.85^cde ± 0.83

24.93^cde ± 1.27

23.95^bcd ± 0.9

24.64^bcde ± 1.30

25.26^de ± 1.33

23.55^bc ± 0.68

23.9^bcd ± 0.62

25.00^cde ± 0.88

21.38^a±1.74

23.28^b ± 1.38

24.08^bcde ± 1.40

Albumen weight (%)

64.28^a ± 1.17

64.7^ab ± 0.83

64.63^ab ± 1.27

65.91^abc ± 0.93

65.07^abc ± 1.23

64.38^a ± 1.38

66.61^c ± 0.75

66.65^c ± 1.46

64.87^ab ± 0.90

69.00^d ± 1.98

66.22^bc ± 1.78

65.41^abc ± 1.47

Haugh units

61.45^a ± 3.69

63.69^ab ± 7.28

68.03^bcd ± 4.92

66.41^abc ± 5.64

68.73^bcd ± 5.33

73.41^d ± 2.81

61.67^a ± 6.02

71.23^cd ± 3.82

72.54^cd ± 6.81

68.69^bcd ± 4.15

73.64^d ± 3.81

73.91^d ± 3.29

Yolk index

0.42^a ± 0.01

0.43^abcd ± 0.01

0.44^abcd ± 0.01

0.43^a ± 0.01

0.42^ab ± 0.01

0.42^abc ± 0.01

0.43^ab ± 0.01

0.48^f ± 0.02

0.45^cd ± 0.01

0.44^bcd ± 0.01

0.47^ef ± 0.10

0.46^de ± 0.01

Shell thickness, mm

0.39^bcd ± 0.02

0.41^e ± 0.01

0.44^f ± 0.01

0.41^de ± 0.01

0.40^bcde ± 0.00

0.43^f ± 0.01

0.38^bc ± 0.02

0.38^b ± 0.01

0.43^f ± 0.01

0.34^a ± 0.01

0.40^cde ± 0.01

0.43^f ± 0.01

W-28: Week 28; W-32: Week 32; W-36: Week 36; HS-10%: hemp seed 10%; HS-20%: hemp seed 20%; HS-30%: hemp seed 30%. %. Mean ± standard deviation. Significant differences ( < 0.05) between means are shown with different lowercase letters (a–f).