Egg shell color

Albumen grading (%)

Yolk grading (%)

AA

A

B

AA

A

B

White

18.53^b

76.54^a

4.93^a

4.90^a

73.39^a

21.72^a

Brown

25.72^a

71.50^b

2.78^a

5.48^a

70.56^a

23.96^a

SEM¹

0.034

0.0343

0.017

0.015

0.021

0.0231

Collection date

Summer season

17-06-2015

7.98^c

84.90^ab

7.20^ab

0.00

51.97^d

48.03^a

1-07-2015

8.95^bc

85.67^a

5.38^ab

3.26^b

77.32^abc

19.42^ab

15-07-2015

12.45^bc

83.05^b

4.50^ab

2.80^b

85.98^a

11.22^c

29-07-2015

21.2^bc

73.6^ab

5.2^ab

0.00

56.91^ᵈ

43.09^a

12-08-2015

8.75^c

83.71^ab

7.54^ab

0.00

53.77^ᵈ

46.67^a

26-08-2015

8.15^bc

84.68^a

7.17^ab

0.00

55.72^ᵈ

44.28^a

9-9-2015

13.48^bc

83.17^b

3.35^ab

3.1^b

84.96^a

11.94^c

23-09-2015

20.5^bc

74.8^ab

4.70^ab

4.26^b

76.75^abc

18.99^ab

Autumn/winter seasons

7-10-2015

32.35^b

63.25^bc

4.44^ab

7.80^ab

71.09^c

21.11^ab

21-10-2015

54.32^a

43.68^c

2.00^b

16.68^a

73.73^bc

9.59^c

4-11-2015

21.50^bc

67.30^ab

11.20^a

5.35^b

84.45^ab

10.20^c

18-11-2015

15.85^bc

81.72^ab

2.43^b

9.60^ab

73.43^bc

16.97^b

2-12-2015

33.39^b

61.65^bc

4.96^ab

7.91^ab

72.87^c

19.22^ab

16-12-2015

54.92^a

43.72^c

1.36^b

17.69^a

72.65^bc

9.66^c

30-12-2015

21.46^bc

68.76^ab

9.78^a

5.48^b

83.55^ab

10.97^c

13-01-2016

14.65^bc

82.77^ab

2.58^b

9.75^ab

72.74^bc

17.51^b

SEM¹

6.6

6.7

2.4

2.7

4.2

4.77

P > F

Egg shell color

0.2735

0.02086

0.6031

0.6948

0.3354

0.5518

Collection date

0.0003

0.0019

0.1083

0.0035

0.0001

<0.0001

ESC × CD

0.2722

0.391

0.5545

0.0961

0.1780

0.4961