Sperm quality is evaluated for the calculation of sperm dosage in artificial reproductive programs. The most common parameter used is motility, but morphology has a higher potential as a predictor of genetic quality. Morphometry calculations from CASA-Morph technology improve morphological evaluation and allow mathematical approaches to the problem. Semen from 28 Holstein bulls was collected by...

The outcome of assisted reproductive technologies (ARTs) depends mostly on the quality of input material (oocytes and sperm) used in these procedures. The number of transferable embryos produced in these programs depends on both provision of high quality mature oocytes and adequate numbers of good quality spermatozoa capable of supporting embryo development to term. Semen samples are cellular m...

difference. The fact that only one spermatozoon is enough to achieve a pregnancy has delayed spermatology research in human. On the other hand, the high variability of human infertility cases may make it seem an unattractive investment whereas the opposite is the case: the papers presented here show that investment in the equipment, and the researchers, to correlate clinical data with the morph...

DNA fragmentation has been shown to be one of the causes of male infertility, particularly related to repeated abortions, and different methods have been developed to analyze it. In the present study, two commercial kits based on the SCD technique (Halosperm ® and SDFA) were evaluated by the use of the DNA fragmentation module of the ISAS ® v1 CASA system. Seven semen samples from volunteers we...

The objectives of the present study were to develop an alternative theoretical approach to the analysis of sperm motility and to develop motility parameters that would complement those more commonly used in current computer-assisted semen analysis procedures. We have defined a set of parameters and have tested them using boar spermatozoa undergoing bicarbonate-induced motility activation. ...