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Reference Base  Preliminary studies on the anatomy and ultrasonic images ... |
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| Title: |
Preliminary studies on the anatomy and ultrasonic images of the reproductive structure of three species of rhinoceros (Rhinoceros unicornis, Diceros bicornis, Ceratotherium simum) |
| Author(s): |
Schaffer, N.E.; Beehler, B.A. |
| Year published: |
1990 |
| Journal: |
Proceedings of the American Association of Zoo Veterinarians |
| Volume: |
1990 |
| Pages: |
242-248, 2 figures, 1 table |
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| File: |
View PDF: 62,7 kb |
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Reproduction - Management methods
All Rhino Species
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| Equipment. The best images of the cervix and caudal uterus in these species were obtained with hand-held 5.0 MHz linear array transducers for sagittal images, and 3.5 (90?) MHz convex transducers for cross-sectional images. For the African species, the 5.0 MHz linear-array transducer was attach... |
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Anatomy - Reproductive organs
All Rhino Species
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| Gross anatomical examinations of the penis and testicles were performed in Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis. The testicles are extra-abdominal and are located within the same skinfold as the penis. The testicles are oblate spheroids with a cranial-caudal longitudinal ... |
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Anatomy - Reproductive organs
White Rhino
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| In the white rhino, the vagina is smooth with large longitudinal folds that course between the urethral opening and the cervix.. In a multiparous female (C. simum), thin mucous membrane tags 6.0 cm and 8.0 cm in height extending from the vaginal wall may have been hymen remnants. The cervix of ... |
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Anatomy - Reproductive organs
Black Rhino
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| The vagina is smooth with large longitudinal folds that course between the urethral opening and the cervix. In a nulliparous D. bicornis, a hymen blocked the vaginal canal just cranial to the urethral opening. This mucous membrane blockage was perforated by a hole. A septum through the hole di... |
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Anatomy - Reproductive organs
All Rhino Species
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| Distances from the vulva to the ovary:
bicornis 70 cm
unicornis 85 cm
simum 90 cm
End |
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Anatomy - Reproductive organs
All Rhino Species
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| The male reproductive tract includes the bulbourethral, prostate and vesicular accessory sex glands, all within the pelvic canal.
Ampullae were not evident in Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis. The masculine uterus was evident in the African species. |
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Anatomy - Reproductive organs
All Rhino Species
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| Gross anatomical examinations of the penis and testicles were performed in Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis. The tip of the flaccid penis is directed caudally. During erection, the penis extends from the sheath and the glans swings forward. The fully erect penis exte... |
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Anatomy - Reproductive organs
White Rhino
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| The reproductive organs of male D. bicornis and C. simum are similar. The junction of the urethra with the urinary bladder is usually more cranial than the junction in R.unicornis. This results in a more developed pelvic urethra in the African rhinos. The prostate surrounds the neck of the blad... |
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Anatomy - Reproductive organs
Indian Rhino
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| Two male reproductive organs were examined. The junction of the bladder and urethra is located on the caudal pelvic brim. All of the accessory sex glands are in close proximity at the neck of the bladder and ventral to the rectum, approximately 5.0 cm cranial to the anal spincter. The paired d... |
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Anatomy - Reproductive organs
Black Rhino
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| The reproductive organs of male D. bicornis and C. simum are similar. The junction of the urethra with the urinary bladder is usually more cranial than the junction in R.unicornis. This results in a more developed pelvic urethra in the African rhinos. The prostate surrounds the neck of the blad... |
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