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Table 2 Percentage fertility recorded during the study when only the cockerels were treated at the 30, 60 or 90 mg/kg (n = 30) and the method of evaluation

From: Florfenicol induces early embryonic death in eggs collected from treated hens

Time

Event

Dose administered (mg/kg)

Method

0

30

60

90

−24

Day before treatment

81

72

71

67

Hatch

24

24 h after 1’st Treatment

92

92

88

92

Break-out

72

24 h after third treatment

75

92

73

76

Hatch

96

24 h after 4’th treatment

87

86

83

77

Break-out

120

Day 1 after withdrawal

70

77

83

83

Break-out

168

Day 3 after withdrawal

70

65

62

77

Hatch

192

Day 4 after withdrawal

87

92

87

87

Break-out

240

Day 6 after withdrawal

86

90

93

92

Break-out

264

Day 7 after withdrawal

63

77

63

57

Hatch

  1. Time- indicates the time of eggs collection in relation to treatment. Method- indicates the methodology used to ascertain fertility for the specified time point. Values are presented as the percentage fertility of the total number of eggs incubated