Recent News for Genetic Problems

Article

Finding and Testing Low-Sugar Forage

May 14, 2007

Did the brown, stemmy, overmature hay you thought was perfect for your easy keepers make them even fatter? ... Read More

Article

Muscle Disorders (AAEP 2006)

March 01, 2007

Careful inspection of a horse's muscle mass and symmetry and hands-on palpation educates the examiner about the horse's muscle tone and comfort level. The examiner also evaluates the horse in motion and conducts a full lameness exam.... Read More

Article

Neonatal Nuances

February 01, 2007

The first days of a foal's life can be risky; there are a number of things that can go wrong. Some problems can be dealt with easily (such as constipation), while others are life-threatening (such as a ruptured bladder).

In this article, Bonni... Read More

Article

Prevalence of PSSM in Quarter Horses

September 14, 2006

Up to 6% of apparently healthy Quarter Horses could have subclinical polysaccharide storage myopathy (PSSM).... Read More

Article

Feeding to Prevent and Control Disease

August 01, 2006

Dietary management can work like magic for specific equine diseases.... Read More

Article

More Than Skin Deep?

April 01, 2006

It was two years ago--in April of 2004--that this magazine published the announcement that the Poco Bueno Quarter Horse sire line had been identified as carrying the recessive gene that causes hyperelastosis cutis (HC, also known as hereditary... Read More

Article

Understanding Congenital Stationary Night Blindness

March 27, 2006

Canadian researchers are investigating the cause of a condition found primarily in Appaloosas that prevents them from seeing in the dark. Congenital stationary night blindness (CSNB) is a hereditary, non-progressive condition for which there is... Read More

Article

Inheritance of RER in Thoroughbreds: One Affected Parent Required

January 01, 2006

Recurrent exertional rhabdomyolysis (RER, tying-up) causes affected Thoroughbreds to suffer recurring episodes of muscle cramping, stiffness, excessive sweating, and a reluctance to move after exercise. With no cure available, information on how... Read More

Article

Inheritance of RER in Thoroughbreds

November 21, 2005

Recurrent exertional rhabdomyolysis (RER) causes affected Thoroughbreds to suffer recurring episodes of muscle cramping, stiffness, excessive sweating, and a reluctance to move after exercise. With no cure available, information on how RER might... Read More

Article

Equine Genetic Disease: Who's At Risk?

October 01, 2005

Many DNA sequence variations are fine; they just give rise to the broad spectrum of colors, sizes, and other characteristics we see in the horse population. Some variations, however, cause problems. These might range from a genetic predisposition... Read More

Article

GBED Linked to Quarter Horse Bloodlines

March 29, 2005

Glycogen-branching enzyme disorder (GBED) has likely been a cause of neonatal mortality in Quarter Horses for decades, according to Stephanie Valberg, DVM, PhD, who gave an update on her research on the disorder at the recent conference of the... Read More

Article

AAEP Convention 2004 Wrap-Up: Medicine/Treatments

March 03, 2005

Equine Malignant Hyperthermia

We've all heard of people and animals that are "sensitive" to anesthesia. Monica Aleman, MVZ, PhD, Dipl. ACVIM, head of the neuromuscular disease lab at the University of California, Davis, reported on a... Read More

Article

Newborn Foals: Routine and Emergency Care

February 14, 2005

The best chance to improve the survival rate of a newborn foal, she said, is adequate advance disease prevention and planning. The disease prevention includes a comprehensive vaccination program, Zimmel told her listeners.... Read More

Article

HC/HERDA Research

February 13, 2005

In horses with HC, the skin separates between the deep and superficial dermis. There is no cure. A DNA test for carrier identification is not yet available, and therefore, managed breeding strategy is currently the only option for reducing the incide... Read More

Article

Medicinal Control of Tying-Up

December 01, 2004

Dantrolene sodium (Dantrium) is used to control exertional rhabdomyolysis (ER, also called tying-up) in horses. Diagnosis of ER is typically confirmed by a finding of increased serum creatine kinase (CK), which is often greater than 1,000 IU at... Read More

Article

Hyperkalemic Periodic Paralysis and Colic

September 01, 2004

Q: I have a 4-year-old Quarter Horse gelding who is HYPP N/H positive. This horse is very gassy and tends to colic once a month, which causes a minor HYPP attack. I have tried everything, from changing his diet (no grain) to jus... Read More

Article

Good/Bad Effects of Antioxidants

July 01, 2004

In a society that is trying to slow the aging process, free radicals and antioxidants are terms that are regularly tossed around. One might not realize their importance in horses, but researchers continue to pursue the details of how and why the... Read More

Article

Fatal Genetic Quarter Horse Disease Identified

June 09, 2004

Glycogen branching enzyme deficiency in Quarter Horses might cause unexplained stillbirths/deaths of foals.... Read More

Article

HC/HERDA Update; Owners of Carrier Stallions Notified

May 17, 2004

Approximately 100 Quarter Horse stallion owners have received, or will receive, a message that the stallion is a carrier of the recessive gene that causes HC, also known as hereditary equine regional dermal asthenia (HERDA).... Read More

Article

Feeding HYPP Horses

May 01, 2004

Hyperkalemic periodic paralysis (HYPP) horses need careful dietary management to reduce attacks.... Read More

Article

HC/HERDA In the News

May 01, 2004

I'm amazed at some of the angry reactions that followed our publication of a news item last month on a hereditary disease called hyperelosis cutis (HC) or hereditary equine regional dermal asthenia (HERDA). Some of the researchers involved--Ann... Read More

Article

HERDA: Not Just Skin Deep

April 01, 2004

Today, it is primarily through Poco Bueno's bloodline that the recessive gene that causes hyperelastosis cutis (HC) has passed. In some scientific circles, the disease is called hereditary equine regional dermal asthenia (HERDA).... Read More

Article

Diet: When Horses Need Less Carbs

April 01, 2004

Research suggests some horses (growing foals, laminitic horses, etc.) could do well on low-glycemic diets. ... Read More

Article

Fever of Unknown Origin in the Foal

March 11, 2004

"Take an organized approach to elucidate causes of fever of unknown origin in the foal," said Robert Franklin, DVM, Dipl. ACVIM, of Goulburn Valley Equine Hospital in Victoria, Australia, during the Western Veterinary Conference held February... Read More

Article

AQHA Board of Directors Votes on Key Rule Changes at Convention

March 11, 2004

The American Quarter Horse Association Board of Directors voted Tuesday on the recommendations of the AQHA standing committees as approved in the general membership meeting. The following is the final results of the vote regarding hyperkalemic... Read More