Resumo

GONZALEZ ALTAMIRANDA, EA; KAISER, GG  e  ODEON, AC. Role of assisted reproduction biotechniques in the transmission of bovine viral diarrhea virus. InVet [online]. 2015, vol.17, n.1, pp.35-45. ISSN 1668-3498.

Biotechnical of assisted reproduction have become commercially important in recent years. Associated with these techniques the question about his possible role in the transmission of infectious agents via semen and oocytes used as starting material arises. The high prevalence and ability to cause reproductive infections of the bovine viral diarrhea virus (BVDV) has become a potential problem in the in vitro production embryos. This update addresses the previous data on the subject and shows own results on the ways of infection with bovine viral diarrhea (BVDV) associated with in vitro production techniques and their impact on the reproduction bovine. The results demonstrate changes in the ovarian follicular development associated with persistent BVDV infection. These changes were reflected in the low efficiency obtained in the in vitro fertilization as a result of early interaction between the virus and ovarian germ line. Moreover, it was determined that noncytopathic BVDV can cross the zona pellucida of bovine oocytes infected at the beginning of the stage of in vitro maturation. This finding highlights the importance of to understand fully the risks of transmission of virus via semen and oocytes and appropriate quality assurances are used in in vitro production embryos systems (IVP). Likewise, the association of BVDV was demonstrated with gametes when IVF was performed with both types from animals infected persistent, where a decrease was observed in cleavage rates and embryo development. The information obtained in this review article contributes to knowledge about the implications of BVDV infections in IVP systems and its effect on embryonic development, as well as the impact of the transmission of infection in cattle by breeding techniques assisted.

Palavras-chave : Bovine Viral Diarrhea Virus; In vitro fertilization; Oocytes; Semen.