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Article Categories General Breeding Information
Stallions and Stallion Management Mares and Mare Management Foals and Foaling
General Breeding Information Cleanliness Part 1 Part 2 Part 3 by B. W. Pickett, Ph.D. Professor Emeritus, Colorado State University
The single most prevalent reason for reduced fertility today is lack of cleanliness or sanitation.
The Breeding Season Actually Starts in November in the Northern Hemisphere!!! by Dickson D. Varner, DVM, MS, Diplomate ACT Charles C. Love, DVM, Ph.D., Diplomate ACT Terry L. Blanchard, DVM, MS, Diplomate ACT Steven P. Brinsko, DVM, MS, Diplomate ACT
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Texas A&M University
Although the upcoming breeding season is 3 months away, a successful year for 2005
begins with preparation of mares and evaluation of stallions right now.
Breeding Soundness Examinations by B. W. Pickett, Ph.D. Professor Emeritus, Colorado State University
Although some of you may feel that the prior breeding season has just ended, it is time to begin thinking about the upcoming breading season.
Stallions and Stallion Management Counting Spermatozoa by B. W. Pickett, Ph.D. Professor Emeritus, Colorado State University
A hemacytometer, originally designed to count blood cells, has been used for many years to
count other types of cells. Toward the end of World War II, with the advent of artificial
insemination in cattle, it became painfully obvious that other methods of counting spermatozoa
had to be developed, because of the length of time it required for an accurate count to be obtained with the hemacytometer.
Shipping Equine Semen by B. W. Pickett, Ph.D. Professor Emeritus, Colorado State University
When the stallion manager and the mare owner have confidence in one another and a spirit
of cooperation, shipped semen has many fewer disadvantages and a much greater chance of success.
Extenders by B. W. Pickett, Ph.D. Professor Emeritus, Colorado State University
To quote Dr. R.H. Foote, one of the most noted reproductive physiologists of our era, "Artificial
insemination (AI) was the first great biotechnology applied to improve reproduction and genetics of farm animals."
Mares and Mare Management Are You Ready? by E.L. Squires, M.S., Ph.D., hon, ACT, Colorado State University
Dr. Squires outlines a strategy for assuring that mares are ready for the next breeding season, with considerations for different categories of mares.
Low-Dose Insemination by Dickson D. Varner, DVM, MS, Diplomate ACT Charles C. Love, DVM, Ph.D., Diplomate ACT Terry L. Blanchard, DVM, MS, Diplomate ACT
Steven P. Brinsko, DVM, MS, Diplomate ACT Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Texas A&M University
Many advances have been made in assisted reproduction for horses in recent years,
and several breed registries in the United States have adopted many of these newly-found techniques.
Foals and Foaling Foal Diarrhea by Patrick M. McCue, DVM, Ph.D., Diplomate American College of Theriogenologists A majority
of foals will exhibit diarrhea at some time within the first 2 months of life. In most cases, the diarrhea
is mild, transient, not contagious to other foals and not life threatening. However, in some instances, diarrhea can be contagious, severe and possibly even fatal.
Foal Rejection by Patrick M. McCue, DVM, Ph.D., Diplomate American College of Theriogenologists
Rejection of a foal by its dam can take several forms. The mare may avoid the foal, prevent the foal
from nursing, or may become aggressive toward the foal. Mares in the latter category may assume
a threatening posture, pin their ears back when the foal approaches, charge or chase the foal,
squeal at the foal, or in more serious cases, may kick at or bite the foal. Mares have, on rare
occasions, seriously injured or killed their foals in the first few days after giving birth.
Foaling Fundamentals by Patrick M. McCue, DVM, Ph.D., Diplomat American College of Theriogenologists
Patrick M. McCue presents an informative array of facts and tips that will be of interest to beginning and experienced equine breeders alike.
Failure of Passive Transfer in Foals By Patrick M. McCue, DVM, Ph.D., Diplomate American College of Theriogenologists
Newborn foals enter the world without antibody protection. Foals are entirely dependent on
antibodies absorbed following ingestion of mare's colostrum in the first few hours of life for protection against infectious diseases.
ARS Equine Colostrum Refractometer by Patrick McCue, DVM, Ph.D., Diplomate American College of Theriogenologists
Colostrum is the thick, sticky yellow fluid produced by the mammary gland of the mare
during the last few weeks of pregnancy. It is comprised of carbohydrates, fats, proteins
and electrolytes. Colostrum is rich in antibodies or immunoglobulins that are critically important for immune protection of the newborn foal.
Meconium Impaction in Newborn Foals by Patrick McCue, DVM, Ph.D., Diplomate American College of Theriogenologists
Meconium is comprised of digested amnionic fluid, gastrointestinal secretions, bile, and cellular
debris that accumulate in the intestinal tract of the late-term fetus.1 It is usually dark greenish
brown or black in color, firm pellets to pasty in consistency and is generally passed within the first 3 to 4 hours after birth.
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