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Research Project: Improving Genetic Prediction of Economic Merit of Dairy Animals

Location: Animal Improvement Programs

Publications

Genetic Base Change for February 2005 - (25-Oct-04)

Population Structure of a Colony of Dog Guides - (22-Jun-04)

Optimum Genetic Choices for Dairy Producers using Grazing Practices - (14-Jun-04)

Choice of Scales for Delivery of Genetic Evaluations to the Public - (28-May-04)

Feasibility of Mace for Longevity for Colored Breeds - (28-May-04)

Performance of Dairy Cattle Clones and Evaluation of Their Milk Composition - (20-May-04)

Genetic Improvement of Dairy Cattle Health - (19-May-04)

Genetic Programs for Dairy Cattle in the United States - (03-May-04)

Selection on Net Merit to Improve Lifetime Profit - (29-Apr-04)

Duration of Herd Participation in Dairy Herd Improvement Milk Recording in the United States - (29-Apr-04)

Breed Composition Codes for Crossbred Dairy Cattle in the United States - (29-Apr-04)

Duration of Herd Participation in Dairy Herd Improvement Milk Recording in the United States - (07-Apr-04)

Stability of Evaluations for Active Ai Bulls - (02-Apr-04)

Type Trait (Co)variance Components for Five Dairy Breeds - (28-Mar-04)

Body Condition Scores and Dairy Form Evaluations As Indicators of Days Open in Us Holsteins - (27-Mar-04)

Estimation of the Economic Impact of a Unit Change in Pta for Daughter Pregnancy Rate - (23-Mar-04)

Prediction of Service Sire Fertility - (23-Mar-04)

Effect of Synchronization Protocols on Days Open and Pregnancy Rate at 120 Days in Dairy Cattle - (23-Mar-04)

Breed Composition Codes for Crossbred Dairy Cattle in the United States - (23-Mar-04)

Genetic Base and Trait Definition Update - (23-Mar-04)

Contribution of Inbreeding and Recessive Defects to Early Embryo Losses - (23-Mar-04)

Analysis of Daughter Pregnancy Rates and Estimated Relative Conception Rates for a Bimodal Distribution - (23-Mar-04)

Impact on Calving Ease Evaluations of Excluding Herds with Abnormal Distribution of Scores - (23-Mar-04)

Accounting for Differences in Rate of Maturity in Yield Evaluations - (23-Mar-04)

Genetic Relationships of Milk Yield for Different Parities Between Bulls and Their Sons - (23-Mar-04)

Merit of Obtaining Genetic Evaluations of Milk Yield for Each Parity on Holstein Bulls - (23-Mar-04)

Accuracy and Stability of National and International Somatic Cell Score Evaluations - (23-Mar-04)

Heterosis and Breed Differences for Daughter Pregnancy Rate in Crossbred Dairy Cows - (23-Mar-04)

Minimum Dry Period Length to Maximize Performance - (22-Mar-04)

Impact of Participation in Somatic Cell Count Testing on Herd Average Somatic Cell Score - (21-Mar-04)

Accuracy of Foreign Dairy Bull Evaluations in Predicting Us Evaluations for Yield - (16-Mar-04)

Somatic Cell Counts of Milk from Dairy Herd Improvement Herds During 2003 - (27-Feb-04)

State and National Standardized Lactation Averages by Breed for Cows Calving in 2002 - (27-Feb-04)

Development of a National Genetic Evaluation for Cow Fertility - (20-Jan-04)

Use of Early Lactation Days Open Records for Genetic Evaluation of Cow Fertility - (20-Jan-04)

Estimated Heterogeneity of Phenotypic Variance of Test-Day Yield with a Structural Variance Model - (20-Dec-03)

Relationships of Test-Day Somatic Cell Scores with Test-Day and Lactation Milk Yields - (17-Dec-03)

Genetic Evaluations for Fitness and Fertility in the United States and Other Nations - (22-Oct-03)

Dairy Cattle: Breeding and Genetics - (16-Oct-03)

Routine Web Reporting with Simple Sas Ods - (08-Sep-03)

Accuracy of Foreign Dairy Bull Evaluations in Predicting Us Evaluations for Yield - (28-Aug-03)

Using Activity and Milk Yield As Predictors of Fresh Cow Disorders - (20-Aug-03)

Changes to Net Merit Ushered in with August Proofs - (04-Aug-03)

Net Merit As a Measure of Lifetime Profit: 2003 Revision - (22-Jul-03)

Standardization of Lactation Records for Variance of Mendelian Sampling to Reduce Bias in Evaluations of Bull Dams - (22-Jun-03)

Performance of Holsteins That Originated from Embryo Transfer Or Multiparous Births - (22-Jun-03)

Test-Day Milk Loss Associated with Elevated Test-Day Somatic Cell Score - (22-Jun-03)

Genetic Correlation Estimates among Body Condition Score, Dairy Form, Days Open and Production Traits for Us Holsteins - (22-Jun-03)

Quality of Data Included in Genetic Evaluations for Daughter Pregnancy Rate - (22-Jun-03)

Definition of Traits and Comparison of Models for Genetic Evaluation of Cow Fertility - (22-Jun-03)

Use of Early Lactation Days Open Records for Genetic Evaluation of Cow Fertility - (22-Jun-03)

Using the Internet for Distribution of Dairy Genetic Evaluations and Research Information to the Dairy Industry - (22-Jun-03)

Characteristics of Genetic Evaluations for Daughter Fertility in Relation to Other Fitness Traits - (22-Jun-03)

Using Activity and Milk Yield As Predictors of Fresh Cow Disorders - (22-Jun-03)

Accuracy of Foreign Dairy Bull Evaluations in Predicting Us Evaluations for Yield - (22-Jun-03)

Performance of Holstein Clones in the United States - (11-Jun-03)

Progeny Testing and Selection Intensity for Holstein Bulls in Different Countries - (07-May-03)

Predicting Days Open for Genetic Evaluation of Female Fertility in U.S. Dairy Cattle - (01-May-03)

Implementation of a Sire-Maternal Grandsire Model for Evaluation of Calving Ease in the Us - (16-Apr-03)

Detection and Adjustment of Abnormal Test-Day Yields - (19-Mar-03)

Fertility Is Now a Selection Trait - (10-Mar-03)

State and National Standardized Lactation Averages by Breed for Cows Calving in 2001 - (06-Mar-03)

Somatic Cell Counts of Milk from Dairy Herd Improvement Herds During 2002 - (06-Mar-03)

Longevity and Fertility Trait Definitions Compared in Theory and Simulation - (02-Mar-03)

Correlation of Longevity Evaluation with Other Trait Evaluations from 14 Countries - (02-Mar-03)

Calving Ease (Co)variance Components for a Sire-Maternal Grandsire Evaluation Model - (15-Dec-02)

Daughter Pregnancy Rate Evaluation of Cow Fertility - (10-Dec-02)

USDA Dairy Goat Genetic Evaluation Program - Status and Plans - (18-Oct-02)

 
Project Team
Norman, H - Duane
Powell, Rex
Vanraden, Paul
Wiggans, George
Kuhn, Melvin
Van Tassell, Curtis - Curt

Project Annual Reports
  FY 2003

Publications

Related National Programs
  Food Animal Production (101)

Related Projects
   Increasing Accuracy of Genetic Evaluations for Calving Ease
   Improving Identification, Reproduction, and Health in Dairy Cattle
   Improving Identification, Reproduction, and Health in Dairy Cattle
   Improving Identification, Reproduction, and Health in Dairy Cattle
   Improving Reproduction and Health in Dairy Cattle Through Use of on-Farm Databases
   Improving Identification, Reproduction, and Health in Dairy Cattle
   Estimating Economic Contribution of Daughter Pregnancy Rate to Lifetime Net Merit
   Effects of Heat Stress on Reproduction, Production, and Survival of Holsteins and Jerseys Or Holsteins and Brown Swiss in the Same Herd
   Improving Fitness in Dairy Cattle by Facilitating the Initiation of a National Research Database for Health Traits
   Estimating Daily Milk, Component Yield, and Scs from Individual Milking Data
   Improving Prediction of Dairy Bull Genetic Merit Considering Heat Stress by Geographical Region
   Genetic and Environmental Parameters for Yield Traits Across Varying Herd Sizes, Production Levels and Lactation Number

 
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