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Investigation and Treatment of Infertility in a Female Black Rhinoceros (Diceros bicornis).
Zoo Biol
January 2025
Taronga Conservation Society Australia, Taronga Institute of Science and Learning, Mosman New South Wales 2088, Taronga Western Plains Zoo, Dubbo, New South Wales, Australia.
A zoo-based, 11-year-old, uniparous southern black rhinoceros (Diceros bicornis minor) failed to conceive after weaning a calf. Behavioral observation and fecal progestagen monitoring confirmed irregular estrous cycles. Serial transrectal reproductive ultrasound examination revealed the cause to be recurrent anovulatory hemorrhagic follicles (AHFs).
View Article and Find Full Text PDFReal-time transrectal ultrasonographic measurement of the fetal eye (vitreous body) to predict parturition in bucking horse mares.
J Equine Vet Sci
January 2025
New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, 382 West Street Road, Kennett Square. PA 19348, USA.
Article Synopsis
- Monitoring gestation and predicting foaling dates in mares, especially in pasture-bred bucking horses, is complicated due to unknown breeding dates.
- A study developed a breed-specific scale that correlates fetal vitreous body length measured via transrectal ultrasonography with days before parturition (DBP) for bucking horses.
- The resulting curvilinear equation accurately predicts DBP based on fetal eye measurements, highlighting that previously used equations for small ponies do not apply accurately to bucking horse pregnancies.
Effect of gonadorelin dose and an additional gonadorelin treatment 2 d after the initiation of Resynch-25 on ovarian dynamics and fertility of lactating Holstein cows.
J Dairy Sci
November 2024
Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706. Electronic address:
Our objective was to improve ovulatory response at the initiation of the Resynch-25 protocol by (1) increasing the dose of GnRH from 100 µg to 200 µg; and (2) giving a second GnRH treatment 56 h after the initiation of the protocol. We considered the experimental d 0 the day of the previous service. The experiment consisted of a 2 × 2 factorial design to compare the main effects of GnRH dose (100 vs.
View Article and Find Full Text PDFClinical presentation, investigation findings, and treatment outcomes of intraluminal small intestinal obstruction by bezoars and other materials in adult cows- a retrospective study of 110 cases.
BMC Vet Res
November 2024
Department of Farm Animals, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, Zurich, CH-8057, Switzerland.
Background: Small intestinal obstruction (SIO) is a blockage of the intestinal lumen by blunt foreign bodies, neoplasms originating from the intestinal wall or thick chyme. This study analysed the medical records (only data) of 110 cattle with SIO and described the clinical findings, treatment and outcome. These findings were compared between surviving and non-surviving cattle, and among the affected regions such as the duodenum, jejunum and ileum.
View Article and Find Full Text PDFUltrasound assessment of the pelvic sidewall: methodological consensus opinion.
Ultrasound Obstet Gynecol
January 2025
Department of Obstetrics and Gynaecology, Faculty of Medicine, Semmelweis University, Budapest, Hungary.
A standardized methodology for the ultrasound evaluation of the pelvic sidewall has not been proposed to date. Herein, a collaborative group of gynecologists and gynecological oncologists with extensive ultrasound experience presents a systematic methodology for the ultrasonographic evaluation of structures within the pelvic sidewall. Five categories of anatomical structures are described (muscles, vessels, lymph nodes, nerves and ureters).
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