Featured Blog: Equine Embryo Biopsy

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February 02, 2017

Posted by Dr. Phil Matthews in Embryo Transfer

embryo One of the advantages of embryo transfer is the ability to biopsy the embryos in an attempt to diagnose different genetic traits or determine gender. The ability to do so has existed for several years and the amount of genetic information that can be realized is ever expanding as geneticists learn more and tests become available to identify particular alleles.

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Oxytocin Use in the Mare

December 28, 2016

Posted by Dr. Dave Scofield in Mare Management

Oxytocin Use in the Mare_Injection Oxytocin is one of the most utilized hormones in broodmare practice. With so many possible clinical applications, a review of the use of oxytocin in the mare highlights the benefits of oxytocin, as well as necessary precautions with its use. Oxytocin is a nine-amino acid neuropeptide that is produced in the hypothalamus and released by hypothalamic neurons that terminate in the posterior pituitary. It is released in a natural pulsatile manner and exerts its effects by coupling with oxytocin receptors on various tissues such as the endometrium, myometrium, heart, kidney, pancreas, and fat tissue. There are also local effects of oxytocin and receptor binding, notably in the utero-placental tissues that help to increase the effect and intensity of pituitary derived oxytocin pulses. Clinically, oxytocin is available as a sterile injection, 20 IU (international units) per milliter. It can be administered intravenously or intramuscularly.

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Ways to Determine Equine Fetal Gender

December 08, 2016

Posted by Dr. Anna Toenissen in Mare Management

Ways To Determine Equine Fetal Gender - Fetal Ovary via Doppler 2 Horse breeders are always interested in the well being of their broodmares as well as the well being of the fetus they are carrying. Advances in reproductive techniques have made it possible to gain insight into how the fetus is progressing as well as the ability to determine its gender. Knowing whether a mare is carrying a colt or a filly can help owners make important decisions concerning their herds and the industry in general. For example, fetal sex determination is used on a regular basis among thoroughbred breeders prior to stock auctions. In this article, we discuss the sorting of equine sperm for sex as well as fetal sex determination via transrectal and transabdominal ultrasound.

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Suppression of Stallion and Mare Behavior

November 07, 2016

Posted by Dr. Ed Squires in Industry

Suppression of Stallion and Mare Behavior - O'Rourke Jumping Mare Once young colts and fillies reach the age of puberty their behavior may become an issue in the show ring or on the race track. Castrating a colt which you intend to use for breeding purposes may not be an option and mares are not typically permanently sterilized. Their sexual behavior may also cause problems with housing, trail riding, etc. In this article, Dr. Ed Squires discusses some of the common ways stallion and mare owners suppress the behavior of their horses.

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Please Note - photos used in these news articles are available in the public domain, have been purchased through istockphoto or (when referencing breeders or horses) have been submitted to Select Breeders Services Inc. by the breeding farm or horse owner. Photo credit has been provided where applicable. If at anytime you see something that needs to be addressed please feel free to contact us directly.

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