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Mostrando ítems 1-11 de 11
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Changes in hematological, biochemical, and blood gases prameters in response to progressive inclusion of nitrate in the diet of Holstein calves
(Veterinary World Publisher, 2021-01)Background and Aim: Nitrate (NO3-) reduces enteric methane emissions and could be a source of non-protein nitrogen in ruminant feeds. Nonetheless, it has a potential toxic effect that could compromise animal health and ... -
Comparación de métodos de extracción de ADN para mejorar el diagnóstico molecular de Cryptosporidium sp. en materia fecal de terneros = Comparison of DNA extraction methods to improve the molecular diagnosis of Cryptosporidium spp. from fecal samples of calves
(Universidad de Morón, 2019-07)Cryptosporidium sp. es un parásito, protozoo que infecta a una gran variedad de hospedadores vertebrados. Entre las más de 30 especies validadas en el género, la especie zoonótica Cryptosporidium parvum es la principal ... -
Dynamics of the ruminal microbial ecosystem, and inhibition of methanogenesis and propiogenesis in response to nitrate feeding to Holstein calves
(Elsevier, 2021-12)It is known that nitrate inhibits ruminal methanogenesis, mainly through competition with hydrogenotrophic methanogens for available hydrogen (H2) and also through toxic effects on the methanogens. However, there is limited ... -
Efficacy of a recombinant Intimin, EspB and Shiga toxin 2B vaccine in calves experimentally challenged with Escherichia coli O157:H7
(Elsevier, 2018-06)Escherichia coli O157:H7 is a zoonotic pathogen of global importance and the serotype of Shiga toxin-producing E. coli (STEC) most frequently associated with Hemolytic Uremic Syndrome (HUS) in humans. The main STEC reservoir ... -
Immune response in calves vaccinated with type three secretion system antigens and shiga toxin 2B subunit of Escherichia coli O157:H7
(2017-01-03)Ruminants are the primary reservoir of Shiga-toxin producing Escherichia coli (STEC) O157:H7 and the main source of infection for humans. The aim of this study was to assess the immunogenic properties of a candidate vaccine ... -
Molecular characterization of Cryptosporidium isolates from calves in Argentina
(2013-12)Cryptosporidiosis is responsible for significant fatalities of neonatal calves, resulting in substantial economic loss in dairy farming in several countries. Additionally, the high shedding of environmentally resistant ... -
Necrotic Enteritis in Young Calves
(Sage Publishing, 2011-03)Non–enterotoxin (CPE)–producing Clostridium perfringens type A has been associated with enteritis in calves. Recent evidence has suggested that a novel toxin, named beta2 (CPB2), is implicated in the pathogenesis of this ... -
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 ... -
Prevalence of Cryptosporidium parvum in dairy calves and GP60 subtyping of diarrheic calves in central Argentina
(Springer, 2019-07)Cryptosporidiosis of calves is caused by the enteroprotozoan Cryptosporidium spp. The disease results in intense diarrhea of calves associated with substantial economic losses in dairy farming worldwide. The aim of this ... -
Prevalence, risk factors and molecular epidemiology of neonatal cryptosporidiosis of calves : The Argentine perspective
(Elsevier, 2023-10)Cryptosporidium spp. are enteroparasitic protozoans that cause cryptosporidiosis in newborn calves. Clinical signs of the infection are diarrhoea and dehydration leading to decreased productivity and economic losses in ... -
Situación epidemiológica de la criptosporidiosis bovina en Argentina = Epidemiological situation of bovine cryptosporidiosis in Argentina
(Universidad de Morón, 2021-04)La criptosporidiosis en terneros neonatos es causada por protozoos enteroparásitos del género Cryptosporidium. Es una afección caracterizada por cuadros de diarrea y deshidratación, dando lugar a una reducción en la ...