The sperm quality supplied by producers is an urgent problem in the field of livestock breeding. Therefore, monitoring health male and great priority. study aimed to assess reproductive performance bulls using laboratory, clinical, morphological, ultrasound reflexological techniques. A total 17 heads Kazakh-white-headed, Holstein-Frieze Simmental breeds were studied. was evaluated diagnostic me...

context correct timing of diagnostic laparoscopy for unexplained infertility management remains as a debate for clinicians. a cost-effective strategy of diagnostic laparoscopy utilization for unexplained infertile patients is much needed. evidence acquisition detailed evaluation of the articles extracted from a “pubmed” and “cochrane database” search using “unexplained infertility and diagnosti...

Modern reproductive technology has not been completely accepted and, especially in-vitro fertilization, IVF has generated serious social, political and legal controversies in Latin America. We may distinguish two trends that show us the oppositions; on one hand, the primacy of the embryo's live and its protection during artificial reproductive process and on the other, the primacy of liberal ac...

Now-a-days the assisted reproductive technologies (ART) are progressing and advancing rapidly. Many reproductive medicine specialists do believe in ART to be the first choice for infertile women regardless of age related issues while gynecologists do believe in reproductive surgery as basic treatment option for these patients. Debate is still unsolved between reproductive surgery or ART which i...

1 Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research of PAS, 10-748 Olsztyn, Poland 2Department of Morphology and Function, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal 3 Laboratory of Reproductive Immunology, Department of Experimental Therapy, Institute of Immunology and Experimental Therapy of PAS, 53-114...

Much evidence has shown that postzygotic reproductive isolation (hybrid inviability or sterility) evolves by the accumulation of interlocus incompatibilities between diverging populations. Although in theory only a single pair of incompatible loci is needed to isolate species, empirical work in Drosophila has revealed that hybrid fertility problems often are highly polygenic and complex. In thi...

Understanding the genetic basis of reproductive isolation between recently diverged species is a central problem in evolutionary genetics. Here, I present analyses of the genetic architecture underlying hybrid male sterility and segregation distortion between the Bogota and USA subspecies of Drosophila pseudoobscura. Previously, a single gene, Overdrive (Ovd), was shown to be necessary but not ...

I read with interest the article by Scherrer et al. This research was largely advertised in a Swiss television show, 36.9, on April 4, 2012. In this show, it was clearly evident that children conceived by assisted reproduction techniques were informed of the hypothesis of the study before the measurements, that they were at risk to be victims of heart infarction at a very young age, and that th...

Farm animals have been important models for the development of reproductive immunology. Two of the major concepts underpinning reproductive immunology, the idea of the fetal allograft and progesterone's role in regulation of uterine immunity, were developed using the bovine as a model. This volume of the American Journal of Reproductive Immunology is composed of review articles that highlight t...

Major achievements in reproductive biology and endocrinology have been made during the last year. Two major areas show intense activity and have revised our concepts. There has been continuous high activity in the stem cell field and the advances of stem cell biology are now creating novel possibilities of assisted-reproduction technologies for human use. Another area of interesting development...