Treatments

Incubation period (hrs)

2 h

4 h

8 h

12 h

24 h

30 h

48 h

72 h

Grass hay

5.5^d

11.3^c

18.0^b

26.5^b

44.1^b

56.4^b

75.2^b

86.5^b

9281

19.8^a

34.9^a

49.5^a

60.5^a

74.2^a

83.6^a

94.4^a

100.5^a

11,252

17.0^bc

32.7^b

47.8^a

59.0^a

72.3^a

81.7^a

92.5^a

99.3^a

11,255

17.3^bc

33.7^ab

48.2^a

59.2^a

72.5^a

81.6^a

92.1^a

98.5^a

11,595

17.8^b

33.6^ab

49.6^a

60.6^a

73.5^a

82.7^a

93.5^a

100.3^a

11,604

16.9^c

32.2^b

48.3^a

59.7^a

73.3^a

82.1^a

92.3^a

98.4^a

SEM

0.28

0.49

0.76

0.87

0.82

0.97

1.04

1.22