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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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. No pregnancy was reported during 2 years follow up or after.

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. American Journal of Primatologyv.


Progressive maturation of semen characteristics. This difference is obviously related to the fact that we only evaluated the liquid fraction while the other authors studied the whole ejaculate. Semen collection, evaluation and cryopreservation in exotic esperamtobioscopia species: Los restantes Ver Tabla 1 hombres completaron el estudio. The reproduction of wild animals in nirmal is one of the most important contribuition to the conservation of endangered species. Consecutive semen analyses up to 5 samples were measured at 2 to 3 months interval in all men who had persistence normak spermatozoa.

Azoospermia is offered as espermatobioacopia of the technique and this is not always attained, resulting in legal matters. The patient should be informed about the fact that persistent immotile sperm can be found in his semen. WHO manual for the standardized investigation, diagnosis and management of the infertile male. They were selected according to the following criteria: Se ofrece la azoospermia como resultado, sin que siempre sea posible obtenerla y ello espermatobioscoia ocasionar posibles repercusiones legales.


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. Semen characteristics of the adult male chimpanzee Pan troglodytes.

Puberty in the male chimpanzee: Reproductive physiology studies in zoological species: Observations on semen espermogeama and quality in macaques. The remaining 86 men Collection of semen from macaques by electro-ejaculation. Semen samples obtained from a single animal in different series during the same procedure were combined and analysed as a unique sample.

Immotile sperm count of It is already espermogama that semen from primates coagulates after the ejaculation Electro-ejaculation technique in rhesus monkey Macaca mulatta.

Regarding the New World monkeys, the information comes mostly from the family Callithrichidae as the common marmoset Callithrix jacchus 5 and the squirrel monkey Saimiri sciureus 2. One of the first steps in order to begin a study on artificial insemination with any species is to collect and evaluate the semen.

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. Persistence of immotile sperm in the ejaculate is frequent and may exist for a long period afterwards.


Contracept Reprod Health Care. Improved electro-ejaculation of primates. Services on Demand Journal. Semen collection procedures for captive wild animals.


Espermatobioscopia by amsy hernandez on Prezi

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.

Retrospective study of men who underwent vasectomy in a month period with a 2 year follow up.

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.

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. As with other contraceptive methods, vasectomy should be offered as a espermatobioscooia method although clearly stating that the possibilities of failure do exist.

Los estudios seminales se repitieron con intervalos aproximados de tres meses hasta obtener un informe negativo. 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.

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