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Table 2 Number of cows with records, dams and maternal grand-dams (MGD) included in each analysis

From: Broad phenotypic impact of the effects of transgenerational heat stress in dairy cattle: a study of four consecutive generations

Data set

Trait

Dam birth month

MGD birth month

Number

Name

Number of records

Number of dams

Number of records

Number of MGD

1

GD month

PD16

152,306

120,175

149,017

99,023

Milk production traitsa

175,171

134,722

171,404

109,462

Female fertility

160,787

125,894

157,285

103,262

Persistency

165,810

128,627

162,231

105,014

Herd-life

174,262

134,179

170,535

109,074

Calving traits

171,036

132,205

167,414

107,725

2

Min–Max

PD16

65,261

50,943

60,161

40,045

Milk production traits

75,477

57,330

68,173

43,801

Female fertility

68,996

53,400

63,176

41,572

Persistency

71,378

54,732

65,003

42,258

Herd-life

75,077

57,086

67,815

43,622

Calving traits

73,662

56,255

66,730

43,182

3

Maturing

Female maturing rate

348,417

229,588

343,298

173,307

4

GD season

PD16

133,472

120,175

133,472

99,023

Milk production traits

150,796

122,668

150,796

101,595

Female fertility

139,698

122,668

139,698

101,595

Persistency

144,216

122,668

144,216

101,595

Herd-life

150,034

122,668

150,034

101,595

Calving traits

147,644

122,668

147,644

101,595

  1. aMilk, fat, and protein production; fat and protein concentration; and somatic cell score