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Table 1 Characteristics of the Holstein paragon dataset for the multiple-trait model

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

 

Herd cluster

C1

C2

C3

 

Number of herds

629

555

506

Data

Number of records

99,862

79,104

67,774

 

Pedigree

412,732

 

PC 1 score:

   
 

herd management specialisation

-0.88 (0.4)

0.36 (0.4)

0.38 (0.5)

Environment

milk yield vs protein and fat contents

   

descriptors

PC 2 score:

0.06 (0.4)

0.69 (0.4)

-0.79 (0.4)

 

herd management intensity

   
 

PC 3 score:

0.15 (0.4)

0.05 (0.5)

-0.02 (0.5)

 

herd management seasonality

   
 

Milk yield (kg)

10,163 (1,550)

9,818 (1,553)

9,152 (1,449)

 

Fat yield (kg)

399 (60)

392 (62)

364 (59)

Phenotypes

Protein yield (kg)

325 (49)

316 (50)

291 (47)

 

Fat content (%)

3.95 (0.43)

4.01 (0.42)

4.0 (0.42)

 

Protein content (%)

3.20 (0.20)

3.23 (0.20)

3.19 (0.20)

  1. This table presents the number of herds, of first lactation records, of animals included in the pedigree file and the mean and standard deviation (between brackets) of analysed traits and PC scores (only for the 3 first PC; herd clusters were created based on the first 10PC) for each herd cluster and breed.