We thank Miss Marion Amos for typing the manuscript and Tina Stallion for preparing the figure. 1 McPaul JJ, McIntosh DA, Hammond WS, et al. Autonomous secondary renal parathyroid hyperplasia. N EnglJ Med 1%4;271:1342-5. 2 Davies DR, Dent CE, Wilicox A. Hyperparathyroidism and steatorrhoea. BrMedJ7 1956;ii:1133-7. 3 Dandona P, Mohiuddin J, Weerakoon JW, Freedman DB, Fonseca V, Healey T. Persist...

Numerous techniques may be used for evaluation of the different reproductive disorders of the stallion. Approaches may vary from real-time ultrasonography and biopsy for evaluating testicular tumors to use of special assays for evaluating sperm or plasma for presence of antisperm antibodies. This communication addresses techniques used to evaluate five relatively uncommon, but perplexing, disor...

In China, the first Przewalski's horse (Equus przewalskii) group was released in Kalamaili Ungulate Protected Area in Xinjiang, in August 2001. The objective of this study was to investigate reproduction and development of released Przewalski's horses in Xinjiang, China from 2002 to 2006. Twenty-four descendants were naturally born, average reproduction rate was 38.7%, and average survival rate...

Mammalian seminal plasma contains among others, proteins called spermadhesins, which are the major proteins of boar and stallion seminal plasma. These proteins appear to be involved in capacitation and sperm-egg interaction. Previously, we reported the presence of a protein related to spermadhesins in goat seminal plasma. In the present study, we have further characterized this protein, and we ...

Rupture of the peroneous tertius was diagnosed in a 7-year-old stallion, based on clinical examinations.The stifle joint flexed as the limb was advanced forward without flexing the hock. When the limb was pulledbackward, the hock joint extended but the stifle was in the normal position. The recommended treatmentincluded complete stall rest for 6 weeks followed by limited exercise for 2 months. ...