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Epidemiology of prolonged testicular infections with bovine viral diarrhea virus.
TLDR
It is demonstrated that prolonged testicular infections could result in detection of viral RNA in semen for 2.75 years with infectious virus grown from testicular tissue 12.5 months after viral exposure.
Reproductive and economic impact following controlled introduction of cattle persistently infected with bovine viral diarrhea virus into a naive group of heifers.
TLDR
The active immunity that developed following field exposure to BVDV provided effective reproductive and fetal protection during the breeding season and subsequent gestations, despite continuous exposure to PI animals until approximately midgestation.
Normal calves produced after transfer of in vitro fertilized embryos cultured with an antiviral compound.
TLDR
Evaluating the capability of IVF embryos to develop into normal, weaned calves after exposure to antiviral concentrations of DB606 during IVC concluded that bovine embryo cultures can be safely supplemented with antiviral Concentrations DB606; addition ofDB606 agent might prevent viral transmission if BVDV were inadvertently introduced into the embryo culture system.
Infectivity of bovine viral diarrhea virus associated with in vivo-derived bovine embryos.
TLDR
Evaluated the infectivity of BVDV associated with in vivo-derived bovine embryos through utilization of primary cultures of uterine tubal cells (UTC) as an in vitro model of the uterine environment and found virus associated with developing embryos was infective for permissive cells.
Comparison of reproductive protection against bovine viral diarrhea virus provided by multivalent viral vaccines containing inactivated fractions of bovine viral diarrhea virus 1 and 2.
TLDR
Analytical differences were observed between groups with respect to post-vaccination antibody titers, presence and duration of viremia in pregnant cattle, and fetal infection rates in offspring from BVDV-exposed cows.
Bovine herpesvirus-1 associated with single, trypsin-treated embryos was not infective for uterine tubal cells.
TLDR
It is concluded that trypsin treatment might effectively prevent infection of recipients if individual, Day 7, exposed embryos were transferred into the uterus.
Bovine viral diarrhea virus (BVDV) associated with single in vivo-derived and in vitro-produced preimplantation bovine embryos following artificial exposure.
TLDR
Although many embryos were positive for virus, there were limited numbers of copies, thereby posing doubt regarding their potential for contamination following embryo transfer.
Serologic survey for antibodies against three genotypes of bovine parainfluenza 3 virus in unvaccinated ungulates in Alabama.
TLDR
Results indicated that BPI3V-A may no longer be the predominant genotype circulating among ungulates in Alabama, and the extent of cross-protection among antibodies against the various B PI3V genotypes is unknown.
Washing and trypsin treatment of in vitro derived bovine embryos exposed to bovine viral diarrhea virus.
TLDR
Washing and trypsin treatments recommended by the International Embryo Transfer Society for in vivo-derived embryos were applied to in vitro-derived, virus-exposed, bovine embryos in this side-by-side comparison of treatments.
In vitro fertilization and in vitro culture of bovine embryos in the presence of noncytopathic bovine viral diarrhea virus.
TLDR
This study examined if noncytopathic BVDV-infected uterine tubal cells in IVF and IVC systems affected the rate of cleavage and development, and if either degenerated ova or embryos produced in the presence of the infected cells had virus associated with them after washing.
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