Cooled & Frozen Semen


Questions to Ask Before Breeding With Frozen Semen

November 07, 2015

Frozen semen offers many advantages, but it is important to understand that not all frozen semen is the same.... Read More


Linseed Oil, Vitamin E Help Improve Cooled Semen Quality

October 31, 2015

Adding these supplements to stallions' diets could help counteract the phenomenon of lower sperm quality in the winter.... Read More


Thinking Outside the Breeding Shed

June 17, 2015

Infertile mare? Deceased stallion? No problem! Equine reproduction is now high-tech enough to overcome these hurdles.... Read More


Cooled-Shipped Sperm Quality's Effect on Fertility

May 01, 2015

One vet said sperm quality thresholds his team identified can help practitioners make better breeding decisions.... Read More


Top Equine Reproduction Studies of 2014

January 20, 2015

Studies covered biofilms, chilled and frozen semen, endometritis, placentitis, oxidative stress and fertility, and more.... Read More


Post-Thaw Semen Quality Tested

June 10, 2014

Non-sperm cells in fresh semen release an enzyme during freezing which could decrease thawed semen quality.... Read More


Seminal Plasma Removal Not Needed for All Stallions

March 22, 2014

While seminal plasma removal can stabilize sperm before cooling, that stability didn't affect pregnancy rates.... Read More


Breeding with Frozen Semen

January 08, 2014

The benefits of using frozen semen when breeding a mare are numerous. ... Read More


Stallion Semen Tests: Which to Use and What Do They Mean?

September 12, 2013

Learn what different semen evaluations can tell veterinarians about a stallion's fertility.... Read More


'Cheap 'n' Easy' Method for Evaluating Stallion Sperm Described (AAEP 2012)

January 27, 2013

Researchers studied the use of Dip Quick stain for examining sperm morphology with positive results.... Read More


Single Layer Centrifugation Benefits in Horse Breeding

April 20, 2012

SLC can help breeders address problems associated with breeding both stallions and mares.... Read More


Stored Semen Processing Method Evaluated

January 13, 2012

A scaled-up single layer centrifugation method improved stored semen quality.... Read More


Artificial Insemination: What's New?

December 01, 2011

Precise timing and specialized tools are the mainstays of successful equine insemination.... Read More


Assisted Reproduction in Horses: Practical Usage (AAEP 2010)

February 06, 2011

Technology is an amazing thing--especially technology that allows veterinarians to produce live foals from horses with very poor fertility and even from those that have died. A number of assisted reproductive technologies for horses have been ... Read More


DHA Positively Affects Semen Quality

January 12, 2011

Various supplements are commonly given to breeding stallions in hopes of improving semen quality, but conflicting reports exist on their effectiveness. Researchers have found, however, that the supplement ingredient DHA, an omega-3 fatty acid found ... Read More


EVA Confirmed in Great Britain

December 10, 2010

A breeding stallion in West Sussex, England, has tested positive for equine viral arteritis (EVA), according to a report filed by the British equestrian magazine Horse & Hound. The confirmation of the EVA was announced Dec. 8.... Read More


Cooled Shipped Semen Quality Impacted by Collection Centers

December 02, 2010

When it comes to the quality of cooled shipped semen for artificial insemination (AI), all semen collection centers are not equal. They're far from it, in fact, according to a new study by Austrian researchers. The huge variation in the quality ... Read More


Building a Horse Breeding Shed

December 01, 2010

Before you open a horse breeding operation, carefully consider the facilities and equipment required.... Read More


Horse Reproduction Trends And Tools

December 01, 2010

Whether reproduction occurs through natural breeding or artificial insemination, techniques and tools exist to help mare and stallion owners achieve their final goal: a complication-free conception, a problem-free pregnancy, and a healthy foal.... Read More


10 Steps for Successful Artificial Insemination for Horses

December 01, 2010

Artificial insemination (AI) is today's breeding standard for many types of horses. To find out how to make our readers' artificial insemination programs more successful, The Horse went to two recognized experts in equine artificial insemination... Read More


Icelandic Volcano Disrupts Semen Shipments

April 15, 2010

The eruption of Iceland's Eyjafjallajokull volcano has closed airports and canceled flights in Europe, leading to the suspension of equine frozen semen shipments at the height of the breeding season.

Jamie Anderson of Equine Repr... Read More


Semen Centrifugation Speeds Examined in Study

January 17, 2010

Theriogenologists typically recommend low centrifugation speeds for separating equine semen from seminal plasma in ejaculate, as it was unknown whether higher speeds would damage the cells. However, higher forces did not damage sperm in a new s... Read More


Breedings to Deceased Stallions Offered Via Injection Technique

November 17, 2009

A reproductive technique called intracytoplasmic sperm injection (ICSI), in which a sperm cell is injected directly into an egg, has resulted in foals from many mares that were no longer able to produce. However, it might be equally as... Read More


Sexed Equine Semen Available Commercially in 2010

November 12, 2009

The ability to have stallion semen sorted for sex-selected foals is being offered on a commercial basis through a new alliance between Sexing Technologies and Equine Reproduction Innovations. The use of sex-selected semen in conjunction with... Read More


Equine Semen Extenders: Effect on Bacterial Growth and Sperm Viability

October 20, 2009

Preliminary results of a collaborative effort between researchers at Oklahoma State University and Texas A&M University were recently presented at the American Association of Veterinary Laboratory Diagnosticians in San Diego, Calif. These... Read More