Of the 138 species of bats exist in Mexico, most belong to the genus Myotis, therefore, it is considered the largest bat genus in the country. Myotis velifer, the species chosen for this study, is a hibernating microchiropteran in which although it has not been conclusively determined, it is likely...
The mechanism of reproduction in mammals is very complex and in some cases is quite particular. For exampble in some bat species, the male presents a reproductive mechanism characterized by an anual testicular cycle that goes from recrudescence to regression (spermatogenesis to inactivity period, respectively). After recrudescence, the spermatozoa arrive...
La Criptorquidia (CO) o no descenso testicular es una patología común con una prevalencia mundial de 2-4% en niños neonatos. Dicha condición se ha asociado con estrés oxidante que puede intervenir en la inadecuada diferenciación del gonocito a espermatogonia. Esta disrupción puede ser la causa de infertilidad en la vida...