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Table 4 Residual variance, genetic variance and heritabilities for the three herd clusters with the single-trait model

From: Modelling and estimation of genotype by environment interactions for production traits in French dairy cattle

  

Holstein

Normande

Trait

 

C1

C2

C3

C1

C2

C3

 

gen var

835,690

802,710

590,920

519,830

473,220

420,700

  

(17,204)

(18,570)

(15,387)

(15,473)

(15,302)

(15,638)

Milk yield

res var

952,294

970,338

887,510

636,713

643,032

586,439

 

h 2

0.47

0.45

0.40

0.45

0.42

0.42

 

gen var

1232.5

1193.7

939.62

822

821

744

  

(26)

(29)

(25)

(27)

(29)

(28)

Fat yield

res var

1507

1605

1443

1260

1284

1141

 

h 2

0.45

0.43

0.39

0.39

0.39

0.39

 

gen var

608

580

416

513

472

428

  

(15)

(16)

(13)

(17)

(17)

(17)

Protein yield

res var

967

1013

896

757

771

685

 

h 2

0.39

0.36

0.32

0.40

0.38

0.38

 

gen var

15.5

15.4

15.0

8.4

8.4

7.8

  

(0.18)

(0.20)

(0.21)

(0.16)

(0.17)

(0.19)

Fat content

res var

3.9

4.2

4.2

3.6

3.9

3.9

 

h 2

0.80

0.78

0.78

0.70

0.69

0.67

 

gen var

2.6

2.5

2.5

2.5

2.5

2.4

  

(0.038)

(0.041)

(0.042)

(0.051)

(0.052)

(0.061)

Protein content

res var

1.3

1.4

1.4

1.2

1.3

1.3

 

h 2

0.67

0.64

0.64

0.67

0.66

0.64

  1. Variances (with standard errors between brackets) and heritabilities are presented for each trait by breed and herd cluster (C1, C2, C3).