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
Funding
USDA-ARS
History
Data contact name
Van Tassell, Curtis P.Data contact email
curt.vantassell@usda.govPublisher
Ag Data CommonsTemporal Extent Start Date
1975-01-01Temporal Extent End Date
2015-12-31Theme
- Not specified
ISO Topic Category
- biota
National Agricultural Library Thesaurus terms
dairy cattle; genetic traits; genomics; Holstein; longevity; marker-assisted selection; milk fat yield; milk protein yield; milk yield; multiple trait selection; pregnancy rate; selection methods; somatic cell count; United StatesOMB Bureau Code
- 005:18 - Agricultural Research Service
OMB Program Code
- 005:040 - National Research
ARS National Program Number
- 101
Pending citation
- No
Public Access Level
- Public