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Bovine colostral cells : the often forgotten component of colostrum
(American Veterinary Medical Association, 2017-05)Because bovine maternal and fetal blood supplies are kept separate in utero, calves are immunologically naïve immediately after birth, which puts them at high risk for disease. The acquisition of passive immunity, generally ... -
Bovine colostral cells—the often forgotten component of colostrum
(American Veterinary Medical Association, 2017-05)At birth, neonatal calves have all the essential immune components they need as adult cattle; however, it takes at least 2 to 4 weeks for those components to become fully functional.1,2 The immune system does not become ... -
Bovine leukemia virus infection in neonatal calves. Risk factors and control measures
(Frontiers Media, 2018-10)Bovine leukemia virus (BLV) is the causative agent of enzootic bovine leukosis (EBL). Although efficient eradication programs have been successfully implemented in most European countries and Oceania, BLV infection rates ... -
Characterization of colostrum from dams of BLV endemic dairy herds
(Elsevier, 2015-06)Bovine Leukemia Virus (BLV) is endemic in Argentina, where the individual prevalence is higher than 80% in dairy farms. The aim of this work was to find preliminary evidence to know if the high level of infection of the ... -
Detección de anticuerpos anti-Mycobacterium bovis en sangre y calostro bovino
(Universidad Nacional del Centro de la Provincia de Buenos Aires, 2023-08)La tuberculosis bovina (TB) es una enfermedad endémica causada principalmente por Mycobacterium bovis. La respuesta inmune es predominantemente celular, siendo la intradermorreacción (IDR) la prueba diagnóstica de referencia. ... -
Efficacy of the spray-drying treatment to inactivate the bovine leukemia virus in bovine colostrum
(Elsevier, 2020-07)Previous studies have shown the presence of bovine leukemia virus (BLV) in colostrum and milk of naturally infected cows. The relationship between virus or provirus and specific antibodies in these secretions is particular ... -
Immune cells transferred by colostrum do not influence the immune responses to foot-and-mouth disease primary vaccination
(Elsevier, 2019-09)Little is known about the influence of maternal antibodies and immune cells transferred through colostrum on the immune responses of calves to the currently used foot-and-mouth disease (FMD) vaccines. Here we evaluated the ... -
Influence of antibodies transferred by colostrum in the immune responses of calves to current foot-and-mouth disease vaccines
(2014-11-12)Immunity to currently used oil-adjuvanted inactivated vaccines against foot-and-mouth disease virus (FMDV) has been studied in detail in adult animals; however, the influence of maternally derived antibodies transferred ... -
Morbilidad y mortalidad en terneras de rodeos lecheros con manejo intensivo del calostrado
(Asosiación Argentina de Veterinarios de Laboratorios de Díagnóstico, 2021-11)La producción lechera en Argentina ha registrado durante los últimos años una reducción en el número de tambos y del número de vacas a una tasa del 3,4% y 1.4% anual, respectivamente (OCLA, 2018). La ineficiencia reproductiva ... -
Physiopathological effects of Escherichia coli O157:H7 inoculation in weaned calves fed with colostrum containing antibodies to EspB and Intimin
(Elsevier, 2014-06-24)Escherichia coli O157:H7 is responsible for severe intestinal disease and hemolytic uremic syndrome (HUS), a serious systemic complication which particularly affects children. Cattle are the primary reservoir for E. coli ... -
Preservation of protective capacity of hyperimmune anti-Stx2 bovine colostrum against enterohemorrhagic Escherichia coli O157:H7 pathogenicity after pasteurization and spray-drying processes
(Elsevier, 2021-05)Enterohemorrhagic Escherichia coli (EHEC) O157:H7 is a major etiologic agent that causes bloody diarrhea, hemorrhagic colitis, and hemolytic uremic syndrome (HUS). Shiga toxin (Stx) is the main virulence factor of EHEC ... -
Quantitation of cytokine gene expression by real time PCR in bovine milk and colostrum cells from cows immunized with abovine rotavirus VP6 experimental vaccine
(Elsevier, 2013-10)In a previous work, VP6 recombinant protein was produced using baculovirus system and it was evaluated in a colostrum-deprived calf model. This vaccine was able to protect calves against viral challenge without inducing ...