Recent News for Breeding and Reproduction

Article

Independent Secondary Isolation of CEM in Kentucky

February 20, 1998

In a separate and unrelated incident, a second contagious equine metritis (CEM)-like organism was recovered from a jack in Kentucky which has no known association or relation to the California jack. Two Standardbred mares... Read More

Article

Kentucky CEM Update

February 20, 1998

As of Feb. 18, three more horses had tested positive for a "CEM-like" organism in Kentucky. A Paint stallion and two pregnant mares were cultured positive for the organism on the original nurse mare farm in Kentucky where the organism that cause... Read More

Article

USDA Relieves Oklahoma Horse Import Restrictions

February 20, 1998

The USDA has added Oklahoma to the list of states approved to receive certain mares and stallions imported into the United States from regions affected with contagious equine metritis, a serious venereal disease of... Read More

Article

Kentucky Thoroughbred Farm Manager's Club: Keeping Mares and Foals Healthy

February 17, 1998

The middle of foaling season was an appropriate time for farm managers in Central Kentucky to brush up on some of the finer points of keeping foals and mares healthy. Veterinarian Karen Wolfsdorf of Hagyard, Davidson, & McGee,... Read More

Article

CEM: Breeding Farm Precautions

February 17, 1998

The problem of contagious equine metritis (CEM) has not gone away. In fact, it has become more confusing as the weeks have progressed since a "CEM-like organism" was found in a Mammoth donkey jack in California in December 1997. In a separate an... Read More

Article

Regu-Mate Studies

February 13, 1998

Two studies involving the use of altrenogest (Regu-Mate) to control behavior of stallions appeared on the surface to have contradictory results. However, there was a key difference--age of the stallions involved--tha... Read More

Article

Foal Sharing

February 01, 1998

Foal sharing, by definition, is an agreement under which a mare owner puts up the use of a mare while the stallion owner puts up the use of a season. Together, the two partners own the resulting foal with no currency having changed hands for a stud... Read More

Article

Predicting Foaling

February 01, 1998

Eleven months is a considerable length of time to anticipate the birth of a foal. A great deal of hope, excitement, dreams, and financial investment can accompany the arrival of a newborn. Because of the long wait, most owners want to monitor th... Read More

Article

Sound and Pictures

February 01, 1998

One of the most significant advances in equine management in recent years has been the advent of ultrasonography, or ultrasound. Through this technology, which bounces repeating sound waves off tissues and structures in the horse's body and... Read More

Article

Sub-Fertile Mares

February 01, 1998

A broodmare which fails to conceive or carry a foal to term can be an emotional and financial liability. For the backyard breeder, the liability might be primarily emotional, when that special mare you wanted to produce your next trail horse or... Read More

Article

Does Frozen Semen Really Work?

February 01, 1998

It has been more than 40 years since Canadian investigators reported the birth of the first foal from the insemination of a mare using frozen stallion semen. Since then, the technology of semen freezing has evolved tremendously. On a... Read More

Article

Oxytocin And Maternal Recognition Of Pregnancy In Mares

January 09, 1998

It is well established that early conceptus loss (the embryo and its associated extra-embryonic membranes) is a major source of reproductive inefficiency in domestic animals. Early pregnancy in all mammals is characterized by a high fertilizatio... Read More

Article

Tyzzer's Disease

January 09, 1998

Tyzzer's disease affects many species of animals. It was originally described as an illness of mice, but has also been reported to cause disease in dogs, cats, rats, gerbils, rabbits, guinea pigs, monkeys, muskrats, hamsters, and foals. Tyzzer's... Read More

Article

Estrous Cycle Primer

January 01, 1998

For all things there is a time and a season. Nowhere is this more true than in equine reproduction. Nature has established a definite time and season for mares to conceive and bear foals. It is a very sensible approach on the part of... Read More

Article

Newborn Knowledge

January 01, 1998

Final preparations will need to be made so that the newborn foal gets the best chance at life.... Read More

Article

Foal Imprinting

January 01, 1998

A mare goes into labor. Powerful and swift contractions expel a foal that,  for a short time, lies helpless in the straw or on the grass. A handler quietly approaches the wet creature that is drawing its first breaths. This... Read More

Article

Cleft Palate in Horses

January 01, 1998

My filly, which is only a few days old, dribbles milk from her nose when she nurses her dam. The veterinarian who delivered her has been back out to check this, and he tells me that she has a cleft palate. Does this mean the same as it does... Read More

Article

Baby Boosters

January 01, 1998

Foals, just as infants, are vulnerable to disease and infection because their young bodies are naive to the world of germs and bacteria. The inclination, particularly for horse owners who choose to vaccinate their own horses, is to... Read More

Article

Mare Breeding Soundness Examination

December 01, 1997

Historically, mares have one of the lowest average conception/birth rates of any of the domestic species (somewhere in the neighborhood of 60-70%). Excellent breeding and overall management of mares and the blessing of... Read More

Article

The Orphan Foal

December 01, 1997

The birth of a long-awaited foal is an occasion to celebrate. All of the planning, breeding dates, pregnancy c... Read More

Article

Advances In Semen Sexing

December 01, 1997

Rens, Welch, and Johnson of Beltsville, Md., reported significant improvements in their flow cytometric semen sexing procedure at the American Society of Animal Science's meeting.

The sexing of sperm with the Beltsville method is based o... Read More

Article

Bone Cysts

November 01, 1997

The first thing to address in this story is that most "bone cysts" are not typically "cysts," by strict definition. The medical dictionary definition of a "cyst" is, "a structure lined with epithelium (a special cell type) and... Read More

Article

APHA Passes New Rule On Transported Semen

November 01, 1997

American Paint Horse Association (APHA) stallion owners are no longer limited to the number of mares bred with transported cooled semen. At the APHA’s annual convention, held October 2-4, directors passed a rule eliminating the old... Read More

Article

Monitoring Fetal Well-Being

October 01, 1997

Fetal monitoring in horses is similar to the methods used for humans -- ultrasound, EKG machines, and blood tests on unborns all are part of monitoring the health of the fetus. Advances in these areas for equines have allowed for... Read More

Article

Genetics Primer

September 01, 1997

Progress in the field of genetics has been moving by leaps and bounds during the past few years. It wasn't long ago that researchers discovered ways to unravel and study DNA, that elusive strand of genes that inhabits each and... Read More