Request PDF on ResearchGate | Changing Tendency Analysis of Chinese Normal Male’s Semen Quality in Recent 25 Years: Samples from Chinese. because of differences in reference values for normal morphology. Adherence to WHO semen analysis reference range guidelines has.

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Improved electro-ejaculation of primates. Semen es;ermatobioscopia obtained from a single espwrmatobioscopia in different series during the same procedure were combined and analysed as a unique sample. Azoospermia is offered as result of the technique and this is not always attained, resulting in legal matters. Retrospective study of men who underwent vasectomy in a month period with a 2 year follow up.

Reproductive physiology studies in zoological species: Semen was collected by electro-ejaculation with a 9 mm diameter bipolar rectal probe connected to a standard bovine electro-ejaculator apparatus adapted to provide a more sensitive control and a attenuation of the intensity of the electrical shocks.


Analysis of some normal parameters of the spermiogram of captive capuchin monkeys Cebus apella Linnaeus, The pattern of the electrical stimulation was five series of 20 stimulus each, in a progressive level of current intensity, ranging from 50,to mA.

Semen evaluation in capuchin monkeys Cebus esper,atobioscopia. Progressive maturation of semen characteristics. Immotile sperm count of Journal of Clinical Endocrinology and Metabolismv.

Nine adult males Cebus apella were studied. The reproduction of wild animals in nirmal is one of the most important contribuition to the conservation of endangered species. Los restantes Ver Tabla 1 hombres completaron el estudio.

Semen collection procedures for captive wild animals. This difference is obviously related to the fact that we only evaluated the liquid fraction while the other authors studied the whole ejaculate.

Espermatobioscopia by amsy hernandez on Prezi

In the informed consent azoospermia should not be a concern as it is frequent to find immotile sperm in the ejaculate and this is an acceptable issue. How to cite this article.

Persistence of immotile sperm in the ejaculate is frequent and may exist espermatpbioscopia a long period afterwards. To identify sperm count on semen analysis at time of discharge. They were selected according to the following criteria: Insights into ovarian function in wild muriqui monkeys Brachyteles aracnoides. Contracept Reprod Health Care. Reproduction in new world primates. No pregnancy was reported during 2 years follow up or after.


Se ofrece la azoospermia como resultado, sin que siempre sea posible obtenerla y ello puede ocasionar posibles repercusiones legales. Consecutive semen analyses up to 5 samples were measured at 2 to 3 months interval in all men who had persistence of spermatozoa. WHO manual for the standardized investigation, diagnosis and management of the infertile male. Semen collection, evaluation and cryopreservation in exotic animal species: Los estudios seminales se repitieron con intervalos aproximados de tres meses hasta obtener un informe negativo.

Regarding the New World monkeys, normla information comes mostly from the family Callithrichidae as the common marmoset Callithrix jacchus 5 and the squirrel monkey Saimiri sciureus 2. As stated before, none of the mentioned authors evaluated the possible damage to sperm cell due to chemical treatment and its consequent decrease in fertility capacity.

The esermograma aggressive behaviour was also used as a desirable parameter for the males due to the well known positive correlation between testosterone levels and aggressiveness.

Services on Demand Journal. It is already espermogama that semen from primates coagulates after the ejaculation Electro-ejaculation technique in rhesus monkey Macaca mulatta. Five or more semen analysis can be made after the surgery. The cebus monkey Cebus apella. The results described in the literature presented some degree of variation among authors 1,9,10and when compared with our results we could find similar volumes of ejaculate in two of them 0,6 ml 10 and 0,58 ml 1 while the third was more than two fold bigger 1,9 ml 9.

The volume of the coagulum was measured by the displacement of a column of water in a graded glass tube after immersion. Collection of semen from macaques by electro-ejaculation. As with other contraceptive methods, vasectomy should be offered as a safe method although clearly stating that the possibilities of failure do exist. Observations on semen espermogeama and quality in macaques. Puberty in the male chimpanzee: In that case the same authors did not evaluate the possible damage to the acrossome that could lead to a reduction of the potential capacity for fertilization as a consequence of the enzimic action.


In respect to the sperm cell pathology we found only one work in literature that reports as the most frequent defects the detached heads and tails and the twisted and bent tails 1. One of the first steps in order to begin a study on artificial insemination with any species is to collect and evaluate the semen. Azoospermia should not be given as the result of vasectomy. Very few information on sperm parameters of Cebus apella could be found in literature and they were referred to the whole ejaculate after chemical dissolution of the coagulated fraction of the semen 1,9, Many techniques of artificial reproduction, commonly used with domestic species, can be adapted to wild animals as a helpful tool in conservation 3,6,8,17, Symposium of the Zoological Society of Londonv.

The patient should be informed about the fact that persistent immotile sperm can be found in his semen. In this perspective, a great deal of non-human primates species has been studied, not only for conservation purposes, but also for comparative research in human reproduction. The remaining 86 men Reproduction of espermgorama world primates. Semen characteristics of the adult male chimpanzee Pan troglodytes.

American Journal of Primatologyv. The purpose of this study is to know the number of semen samples needed to discharge a patient after intervention. Vasectomy is a surgical method of male contraception. This discussion clearly shows the lack of information on normal spermiogram of the Cebus apellawhat lead to conclude that the parameters here described are of great relevance, but further studies are imperative.

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