Histological Characteristics of Spermatogenesis in Testes of the Orangutan (Pongo pygmaeus)
نویسندگان
چکیده
منابع مشابه
Pregnancy diagnosis in the orangutan (Pongo pygmaeus) using the subhuman primate pregnancy test kit.
A determination was made of the gestational interval over which the Subhuman Primate Pregnancy Test, a hemagglutination inhibition test for urinary chorionic gonadotropin, accurately indicated conception and the continuation of pregnancy in an orangutan (Pongo pygmaseus). The initial positive diagnostic test response occurred about 8 months before parturition and positive responses continued th...
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In this paper the alterations of the skeleton of a 42 year old, Bornean Orangutan (Pongo pygmaeus pygmaeus, Linnaeus, 1760) are described. The skeleton showed typical hyperostosis and calcification on the right side of the thoracic vertebrae, consistent with the skeletal disease known in human pathology under the name of Diffuse Idiopathic Skeletal Hyperostosis (DISH, ankylosing hyperostosis). ...
متن کاملSpeciation and intrasubspecific variation of Bornean orangutans, Pongo pygmaeus pygmaeus.
Mitochondrial DNA control region sequences of orangutans (Pongo pygmaeus) from six different populations on the island of Borneo were determined and analyzed for evidence of regional diversity and were compared separately with orangutans from the island of Sumatra. Within the Bornean population, four distinct subpopulations were identified. Furthermore, the results of this study revealed marked...
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Many social animals can discriminate between familiar and unfamiliar faces. Orangutans, however, lead a semi-solitary life and spend much of the day alone. As such, they may be less adept at recognizing conspecifics and are a good model for determining how social structure influences the evolution of social cognition such as facial recognition. The present study is the first report of whether o...
متن کاملthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
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ژورنال
عنوان ژورنال: Primate Research
سال: 2010
ISSN: 1880-2117,0912-4047
DOI: 10.2354/psj.26.51