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

Published by Agricultural Research Service | Department of Agriculture | Catalog Last Checked: May 05, 2026 at 11:41 PM | Dataset Last Updated: February 08, 2024
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.csvResource Description: Aggregate means of Holstein predicted breeding values for milk yield and birth datesResource Title: Holstein Fat Yield. File Name: HO_f.csvResource Description: Aggregate means of Holstein predicted breeding values for fat yield and birth datesResource Title: Holstein Protein Yield. File Name: HO_p.csvResource Description: Aggregate means of Holstein predicted breeding values for protein yield and birth datesResource Title: Holstein Somatic Cell Score. File Name: HO_scs.csvResource Description: Aggregate means of Holstein predicted breeding values for somatic cell score and birth datesResource Title: Holstein Productive Life. File Name: HO_pl.csvResource Description: Aggregate means of Holstein predicted breeding values for productive life and birth datesResource Title: Holstein Daughter Pregnancy Rate. File Name: HO_DPR.csvResource Description: Aggregate means of Holstein predicted breeding values for daughter pregnancy rate and birth datesResource Title: Data Dictionary. File Name: data_dictionary.csvResource 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

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "005:18"
]
contactPoint 
{
  "fn": "Van Tassell, Curtis P.",
  "hasEmail": "mailto:curt.vantassell@usda.gov"
}
description <p>Aggregate means for six traits (milk, fat, and protein yields, somatic cell score, length of productive life, and daughter pregnancy rate) </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Holstein Milk Yield.</p> <p>File Name: HO_M.csv</p><p>Resource Description: Aggregate means of Holstein predicted breeding values for milk yield and birth dates</p></li><br><li><p>Resource Title: Holstein Fat Yield.</p> <p>File Name: HO_f.csv</p><p>Resource Description: Aggregate means of Holstein predicted breeding values for fat yield and birth dates</p></li><br><li><p>Resource Title: Holstein Protein Yield.</p> <p>File Name: HO_p.csv</p><p>Resource Description: Aggregate means of Holstein predicted breeding values for protein yield and birth dates</p></li><br><li><p>Resource Title: Holstein Somatic Cell Score.</p> <p>File Name: HO_scs.csv</p><p>Resource Description: Aggregate means of Holstein predicted breeding values for somatic cell score and birth dates</p></li><br><li><p>Resource Title: Holstein Productive Life.</p> <p>File Name: HO_pl.csv</p><p>Resource Description: Aggregate means of Holstein predicted breeding values for productive life and birth dates</p></li><br><li><p>Resource Title: Holstein Daughter Pregnancy Rate.</p> <p>File Name: HO_DPR.csv</p><p>Resource Description: Aggregate means of Holstein predicted breeding values for daughter pregnancy rate and birth dates</p></li><br><li><p>Resource Title: Data Dictionary.</p> <p>File Name: data_dictionary.csv</p><p>Resource Description: Defines variables / sub-components with examples as used in column headers. Filenames: </p> <ul> <li>Holstein Productive Life: HO_pl.csv</li> <li>Holstein Daughter Pregnancy Rate: HO_DPR.csv</li> <li>Holstein Somatic Cell Score: HO_scs.csv</li> <li>Holstein Protein Yield: HO_p.csv</li> <li>Holstein Fat Yield: HO_f.csv</li> <li>Holstein Milk Yield: HO_M.csv</li></ul><p></p></li> </ul>
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "HO_M.csv",
    "format": "csv",
    "mediaType": "text/plain",
    "downloadURL": "https://ndownloader.figshare.com/files/44334860"
  },
  {
    "@type": "dcat:Distribution",
    "title": "HO_f.csv",
    "format": "csv",
    "mediaType": "text/plain",
    "downloadURL": "https://ndownloader.figshare.com/files/44334863"
  },
  {
    "@type": "dcat:Distribution",
    "title": "HO_p.csv",
    "format": "csv",
    "mediaType": "text/plain",
    "downloadURL": "https://ndownloader.figshare.com/files/44334866"
  },
  {
    "@type": "dcat:Distribution",
    "title": "HO_scs.csv",
    "format": "csv",
    "mediaType": "text/plain",
    "downloadURL": "https://ndownloader.figshare.com/files/44334869"
  },
  {
    "@type": "dcat:Distribution",
    "title": "HO_pl.csv",
    "format": "csv",
    "mediaType": "text/plain",
    "downloadURL": "https://ndownloader.figshare.com/files/44334872"
  },
  {
    "@type": "dcat:Distribution",
    "title": "HO_DPR.csv",
    "format": "csv",
    "mediaType": "text/plain",
    "downloadURL": "https://ndownloader.figshare.com/files/44334875"
  },
  {
    "@type": "dcat:Distribution",
    "title": "data_dictionary.csv",
    "format": "csv",
    "mediaType": "text/plain",
    "downloadURL": "https://ndownloader.figshare.com/files/44334878"
  }
]
identifier 10.15482/USDA.ADC/1256513
keyword 
[
  "ARS",
  "Holstein",
  "NP101",
  "bulls",
  "cows",
  "dairy cattle",
  "data.gov",
  "genetic improvement",
  "genetic traits",
  "genetic trend",
  "heritability",
  "marker-assisted selection",
  "milk",
  "sires"
]
license https://www.usa.gov/publicdomain/label/1.0/
modified 2024-02-08
programCode 
[
  "005:040"
]
publisher 
{
  "name": "Agricultural Research Service",
  "@type": "org:Organization"
}
temporal 1975-01-01/2015-12-31
title Data from: Changes in genetic selection differentials and generation intervals in US Holstein dairy cattle as a result of genomic selection

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