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Virginia Tech

Use of sire evaluations for first, all, and later lactations to predict lifetime profit functions of individual daughters

Abstract

dc:description.abstract

Sire evaluations from first, all, and later lactations for Predicted Difference milk, fat, and dollars on 226 sires were used to predict deviated relative net income. Eleven different relative net incomes were calculated on 176,902 individual cows. Low, medium and high values were used for lifetime product value and feed price. Lifetime product value was actual milk and fat production. Individual relative net income was deviated from contemporaries in the same herd and calving in the same year of first freshening.

Degree

thesis:*
Name thesis:degree_name
Master of Science
Level thesis:degree_level
masters
Discipline thesis:degree_discipline
Dairy Science (Genetics and Management)
Department dc:contributor.department
Dairy Science (Genetics and Management)
Grantor dc:publisher
Virginia Tech
Year dc:date.issued
1986

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Beaudry, Thomas Fernand
Chair dc:contributor.committeechair
  • Cassell, Bennet G.
Committee members dc:contributor.committeemember
  • McGilliard, Michael L.
  • Pearson, Ronald E.
  • Vinson, William E.

Rights

dc:rights
Statement dc:rights
  • Creative Commons Attribution-NonCommercial-NoDerivs 3.0 United States
Language dc:language.iso
en_US

Identifiers

dc:identifier.*
Dc Identifier Other
etd-12182013-040020
OAI identifier oai:identifier
oai:vtechworks.lib.vt.edu:10919/51125

Chain of custody

source
Harvested from
Virginia Tech
Base URL
vtechworks.lib.vt.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
related terms
citation

Beaudry, Thomas Fernand. Use of sire evaluations for first, all, and later lactations to predict lifetime profit functions of individual daughters. masters thesis, Virginia Tech, 1986. http://hdl.handle.net/10919/51125