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Table 2 Summary statistics for nest-related traits for Rhode Island Red and White Leghorn hens

From: Nest preference and laying duration traits to select against floor eggs in laying hens

Trait

Rhode Island Red

White Leghorn

n

Mean

SD

Min.

Max.

n

Mean

SD

Min.

Max.

LRN (%)

788

91.80

8.32

51.45

99.65

879

86.53

9.37

50.71

98.58

CN

788

3.98

3.88

1.00

32.00

879

8.26

5.92

1.00

40.00

MOT (hh:mm)

831

02:28

01:07

00:04

06:17

920

03:39

01:01

00:28

06:38

MDN (nests)

827

7.80

3.03

0.47

20.26

918

9.21

3.06

2.54

21.46

PNL (%)

802

43

13

9

81

895

59

16

16

96

MLD (min)

832

41

17

11

106

921

64

23

16

142

MDB (min)

826

27

10

8

66

920

30

11

10

75

MDA (min)

826

14

13

1

67

920

34

19

3

103

 

n

0

1

  

n

0

1

  

NAL (%)

927

14.99

85.01

  

980

10.31

89.69

  
  1. The percentage of the observed phenotypic variance explained by the fixed effect of the hen’s hatch date was ≤ 10%, except for MOT (13%) and MDN (22%) in White Leghorn
  2. LRN laying rate in the nests, CN clutch number, MOT mean oviposition time, MDN mean distance between nests used for laying, PNL percentage of nests used for laying, MLD mean laying duration, MDB mean duration in the nest before laying, MDA mean duration in the nest after laying, NAL nest acceptance for laying (0 for hens with LRN < 50%, 1 otherwise), n number of hens with phenotype, SD standard deviation, Min. minimum, Max. maximum values
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Genetics Selection Evolution

ISSN: 1297-9686