Content tagged "beef breeding and genetics"

Genetic Defects

Beef Cattle Updated: February 01, 2019

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

How To Get Started With DNA Testing

Beef Cattle Updated: September 28, 2018

  Summary: This fact sheet goes through the fundamentals of how and when producers might use DNA testing in beef cattle production.  It covers the different...

Recent Changes to National Cattle Evaluation

Beef Cattle Updated: June 14, 2018

 Single-step genetic evaluations have become a reality for several beef breed associations, with the expectation that more will adopt single-step predictions...

Selection for Improved Feed Efficiency: Comparison of Different Indices

Beef Cattle Updated: January 04, 2018

 *Click here for printable pdf version.Feed efficiency is one of the most economically important traits in beef production and is sufficiently heritable to...

2017 Across-Breed EPD Table & Improvements

Beef Cattle Updated: January 04, 2018

      Larry Kuehn and Mark Thallman      U.S. Meat Animal Research Center, *Click here for printable...

EPD Basics and Definitions

Beef Cattle Updated: February 09, 2017

 Summary:EPDs represent the genetic component of an animal’s phenotype that is expected to be passed on to the next generation. Studies have shown that using...

Hair shedding scores: A tool to select heat tolerant cattle

Beef Cattle Updated: January 27, 2017

Summary: Hair shedding scores are an easy and effective way to measure cattle’s ability to cope with heat stress. In this fact sheet, learn the how, when,...

Crossbreeding for the Commercial Beef Producer

Beef Cattle Updated: January 26, 2017

 Summary: Crossbreeding in the commercial beef industry is an important management practice.  The benefits include being able to utilize breeds that are from...

Parentage Testing

Beef Cattle Updated: January 24, 2017

Summary: Parentage testing can be a valuable tool for both seedstock breeders and commercial producers.  This fact sheet covers how parentage testing works...

Simple Inheritance in Beef Cattle

Beef Cattle Updated: January 04, 2017

    Summary: Managing traits that are controlled by simple inheritance has economic importance to many beef operations. Understanding simple inheritance can...

The Genetics of Horned, Polled and Scurred Cattle

Beef Cattle Updated: January 04, 2017

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

Economically Relevant Traits

Beef Cattle Updated: May 16, 2016

  Summary: Economically relevant traits (ERTs) are those that are directly associated with either a cost or a source of revenue.  Not all Expected Progeny...

Recent Developments in Genetic Evaluations and Genomic Testing

Beef Cattle Updated: January 19, 2016

  Summary: The application of genomics to improve the accuracy of EPDs is a rapidly developing field. There are ongoing improvements in genotyping and...

Beef Cattle Economic Selection Indices

Beef Cattle Updated: January 04, 2016

  Summary: Selection indices provide a single value, usually reported in dollars, for the selection of breeding stock that optimizes selection on a number of...

Commercial Replacement Heifer Selection

Beef Cattle Updated: December 23, 2015

 Summary: Typically only a subset of heifers are replacement candidates due to size (smaller heifers are often the ones that are born late(r) in the calving...

Genetic Correlations and Antagonisms

Beef Cattle Updated: December 23, 2015

 Summary:  Knowledge of which traits are antagonistic can be utilized to manage the impact of selection decisions on other correlated traits.  However, it is...

What is Gene Editing?

Beef Cattle Updated: December 23, 2015

  Gene editing is a category of new methods that can be used to precisely edit or change the genetic code. As the name “gene editing” suggests, these...

Genetic Markers of Bovine Respiratory Disease Complex Susceptibility

Beef Cattle Updated: December 11, 2015

 Summary: Complex diseases such as BRDC involve the influence of many genes and are by definition hard to predict. Results from the BRD CAP illustrate that...

Genetic Practices to Improve Beef Cattle Reproduction

Beef Cattle Updated: December 08, 2015

  Summary: Reproduction is typically a lowly heritable trait, but there are genetic practices that can help improve reproduction rates.Reproduction has a...

Beef Sire Selection Recommendations

Beef Cattle Updated: December 08, 2015

  Summary: Selecting the right bull is critical to the success of a genetic selection program, and should be based on traits important to each breeding...

Initial Genome-Wide Association Study of Feed Intake-Related Traits in Beef Cattle

Beef Cattle Updated: December 08, 2015

  The ability to improve the utilization of nutrients has tremendous potential to improve profitability.  It has been estimated that a 10% improvement in...

Decreasing Generation Interval to Increase Genetic Progress

Beef Cattle Updated: December 08, 2015

  Summary: To see the greatest return on investing in genomic-enhanced EPDs, cattle breeders must decrease the average age of sires and dams.The factors...

Managing Genetic Defects

Beef Cattle Updated: December 08, 2015

  Summary: Inbreeding is associated with an increased frequency of homozygosity (same allele of a gene inherited from both sire and dam) and this reveals...

Color Patterns in Crossbred Beef Cattle

Beef Cattle Updated: December 08, 2015

  Summary: Understanding the genetic basis of coat color can help create more uniform progeny groups and aid in marketing crossbred calves.Crossbreeding...

DNA Sample Collection

Beef Cattle Updated: November 25, 2015

 Summary:Producers may wish to collect DNA samples on animals for a variety of reasons including parentage testing, quantitative trait testing, testing for...

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.