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Tag: phenotype

Posted on September 3, 2019September 3, 2019

How To Get Started With DNA Testing


Cattle in field   How To Get Started With DNA Testing

   Alison Van Eenennaam

   University of California, Davis

   alvaneenennaam@ucdavis.edu

 

 

*Click here for printable pdf version

Summary: This fact sheet goes through the fundamentals of how and when producers might use DNA testing in beef …

Posted on September 3, 2019September 3, 2019

The Genetics of Horned, Polled and Scurred Cattle


Horned cattle

  The Genetics of Horned, Polled

   and Scurred Cattle

    Darrh Bullock

    University of Kentucky

    dbullock@uky.edu

 

*Click here for printable pdf version.

Summary: Completely avoiding both horns and scurs in your cowherd is near impossible for most commercial cattle producers. Understanding how …

Posted on September 3, 2019September 3, 2019

Genetic Defects

Picture of a group of cattle

   Genetic Defects

    Alison Van Eenennaam

    University of California, Davis

    alvaneenennaam@ucdavis.edu

 

 

 

*Click here for printable pdf version.

Summary: Genetic defects are hereditary conditions that result in an undesirable phenotype (i.e. disease or trait).  Genetic tests now exist for many of these …

Posted on September 3, 2019September 3, 2019

Value of Collecting Phenotypes


Picture of a technician performing an ultrasound on a cow

   Value of Collecting Phenotypes

    Matthew Spangler

    University of Nebraska, Lincoln

    mspangler2@unl.edu

 

 

 

*Click here for printable pdf version.

Summary: Even when using genomic selection, phenotypes are needed to build EPD accuracy and to retrain genomic predictions.

Introduction

From a historical point …

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This is a national Cooperative Extension resource

This work is supported by New Technologies for Agriculture Extension grant no. 2015-41595-24254 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

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