Estrus detection in mares using contextually congruent stallion vocalization playback with and without stallion scent
نویسندگان
چکیده
Estrus detection in mares using contextually congruent stallion vocalization playback with and without stallion scent K.M. Janson, S.M. McDonnell ∗ Havemeyer Equine Behavior Laboratory, University of Pennsylvania School of Veterinary Medicine, Department of Clinical Studies, New Bolton Center, 382 West Street Road, Kennett Square, PA 19348, USA
منابع مشابه
Use of an androgenized mare as an aid in detection of estrus in mares.
A study was conducted over a 2-mo period to compare estrus detection results obtained using an androgenized teaser mare with those obtained with a stallion, using the same group of 10 normally cyclic mares. The teaser mare was androgenized by administration of boldenone undecylenate (500 mg i.m. every 1 to 2 wk), and allowed to run loose with the mare group. Estrus was determined by observation...
متن کاملEffects of inbreeding and other systematic effects on fertility of Black Forest Draught horses in Germany
BACKGROUND The Black Forest Draught horse (BFDH) is an endangered German coldblood breed with its origin in the area of the Black Forest in South Germany. In this retrospective study, the influence of the inbreeding coefficient on foaling rates was investigated using records from ten breeding seasons. Due to the small population size of BFDH, the level of inbreeding is increasing and may have a...
متن کاملSexual behavior of mares.
The mare is seasonally polyestrus, having an anovulatory period during the short light days of late fall and early winter, and beginning to ovulate as the days become longer during the winter. The complete estrus cycle is typically about 3 weeks, with 5 to 7 days of estrus and approximately 2 weeks of diestrus. When a mare lives within the natural social structure of the horse, i.e. a family ba...
متن کاملEvaluation of androgenized mares as an estrus detection aid.
Ten pony mares that had developed stallion-like sexual behavior as the result of anabolic steroid treatment (boldenone undecylenate, 0.55 mg/kg intramuscularly (i.m.), once weekly for 12 injections) were evaluated for ability to aid in detecting estrus in cycling mares. In across-the-fence estrus detection trials, androgenized mares failed to elicit signs of estrus or diestrus. In 10-min pastur...
متن کاملInitial occurrence of Taylorella asinigenitalis and its detection in nurse mares, a stallion and donkeys in Kentucky.
In 1998, a newly identified bacterium Taylorella asinigenitalis was isolated from the external genitalia and reproductive tracts of nurse mares, a stallion and donkey jacks in Kentucky. An extensive regulatory effort was implemented to contain the outbreak including the tracing and testing of 232 horses and donkeys on 58 premises. T. asinigenitalis was isolated from the reproductive tract of 10...
متن کامل