Data from: Changes in genetic selection differentials and generation intervals in US Holstein dairy cattle as a result of genomic selection

Aggregate means for six traits (milk, fat, and protein yields, somatic cell score, length of productive life, and daughter pregnancy rate)

Resources in this dataset:
Resource Title: Holstein Milk Yield.
File Name: HO_M.csv
Resource Description: Aggregate means of Holstein predicted breeding values for milk yield and birth dates

Resource Title: Holstein Fat Yield.
File Name: HO_f.csv
Resource Description: Aggregate means of Holstein predicted breeding values for fat yield and birth dates

Resource Title: Holstein Protein Yield.
File Name: HO_p.csv
Resource Description: Aggregate means of Holstein predicted breeding values for protein yield and birth dates

Resource Title: Holstein Somatic Cell Score.
File Name: HO_scs.csv
Resource Description: Aggregate means of Holstein predicted breeding values for somatic cell score and birth dates

Resource Title: Holstein Productive Life.
File Name: HO_pl.csv
Resource Description: Aggregate means of Holstein predicted breeding values for productive life and birth dates

Resource Title: Holstein Daughter Pregnancy Rate.
File Name: HO_DPR.csv
Resource Description: Aggregate means of Holstein predicted breeding values for daughter pregnancy rate and birth dates

Resource Title: Data Dictionary.
File Name: data_dictionary.csv
Resource Description: Defines variables / sub-components with examples as used in column headers. Filenames:

Holstein Productive Life: HO_pl.csv
Holstein Daughter Pregnancy Rate: HO_DPR.csv
Holstein Somatic Cell Score: HO_scs.csv
Holstein Protein Yield: HO_p.csv
Holstein Fat Yield: HO_f.csv
Holstein Milk Yield: HO_M.csv