Dairy Reproduction and Genetics News

News published on January 4, 2018:

X-Zelit increases fertility and reduces number of empty days

A new study from Cornell University showed that cows supplemented with X-Zelit in the dry period were getting pregnant faster. The figure shows the frequency of cows non-pregnant. Thus, in start of lactation...
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News published on September 2, 2014:

Tools To Identify Uncommon Beef Cattle Traits

Breakthroughs in genetic research have made it possible to evaluate and routinely predict growth, calving ease, and other important, easily observable traits within beef cattle breeds. However, producers also w...
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Sandra Avant, USDA, Agricultural Research Magazine (ARS)
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News published on January 9, 2012:

ISU scientist helps find structure of gene-editing protein named Method of the Year

In the two and a half years since Adam Bogdanove, professor at Iowa State University in the Department of Plant Pathology and Microbiology, along with Matthew Moscou, a former graduate student in that departmen...
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Iowa State University
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News published on May 26, 2009:

Genomic regulation of oestrous behaviour in dairy cows

Gene expression patterns in brain areas associated with heat scores Intensive selection for high milk yield in dairy cows has raised production levels substantially but at the cost of reduced fertility. This p...
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Wageningen UR Animal Breeding & Genomics Centre
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News published on May 15, 2009:

Trends in Dairy Cattle Breeding and Genetics

The number of tools to develop a productive and profitable dairy herd that is genetically superior continues to grow.  All of the old methods, such as crossbreeding or selection, are still available and ne...
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University of Minnesota Dairy Extension
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News published on April 30, 2009:

A Revolution in Dairy Cattle Genetics

Sound the alarm. "One if by land and two if by sea" stated Henry Wadsworth Longfellow in his poem "The Midnight ride of Paul Revere". The redcoats are coming. The redcoats are coming. Today, the SNPs are coming...
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University of Illinois (Illini DairyNet)
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News published on April 17, 2009:

Superb Gains at IPS with April Proofs

With the August 2009 sire summaries, International Protein Sires (IPS) proven sire lineup realized superb gains.  "Our new releases are formidable breed leaders.  And bulls in our former battery reali...
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International Protein Sires
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News published on April 16, 2009:

What Weight for Breeding Crossbred Heifers?

We have received some questions about the appropriate weight to breed crossbred heifers. At Virginia Tech, we have used 650 lbs as the minimum body weight to breed HJ or JH heifer, while limits of 550 and 750 l...
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Virginia Cooperative Extension - Dairy Pipeline
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News published on March 9, 2009:

Strategies for Improving Reproductive Performance

Reproductive Performance (RP) in dairy herds continues to be a major issue. While experts suggest that herds should strive for a pregnancy rate of greater than 20%, Virginia's average for DHIA herds is currentl...
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Virginia Cooperative Extension Dairy Pipeline
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News published on February 23, 2009:

Pedometry to Improve Reproduction

Pedometry offers the opportunity for medium- to large-sized dairy herds to improve heat detection and, at the same time, reduce dependence upon labour. A pedometer is a motion-detecting and -recording device, o...
Source :
OMAFRA FactSheet
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