El uso de células somáticas (fibroblastos) provenientes de piel, constituye un precedente sumamente importante para la obtención de cultivos celulares con fines reproductivos, de conservación y preservación de material genético proveniente de especies amenazadas, extintas o en peligro de extinción, especímenes cuyo potencial genético es superior al resto de la...
The major signal for maternal recognition of pregnancy in the ruminant species is interferon tau (IFNT). In the present study, in vivo and in vitro domestic and hybrid blastocysts were obtained, and IFNT expression was measured by semi quantitative RT-PCR and quantitative RT-PCR method. Hybrid IVF produced less blastocyst than...
Intracytoplasmic sperm injection (ICSI) success is restricted by failure in oocyte activation and in sperm head decondensation with low male pronuclei (PN) formation. In order to improve ICSI, appropriate sperm selection and oocyte activation are necessary. The objective of the present study was to determine the efficiency of fertilization using...