Artículos científicos: Envíos recientes
Mostrando ítems 21-40 de 622
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Otras causas de pérdidas reproductivas en bovinos. Pensando más allá de las etiologías infecciosas
(Ediciones Taurus, 2024-02)Teniendo en cuenta un mercado internacional cada vez más demandante de sistemas de producción de carne y leche bovina sustentables, es imprescindible mejorar los parámetros reproductivos de la producción pecuaria local. ... -
Infectious sporadic bovine abortions: retrospective analysis
(Springer Nature, 2024-03-01)Infectious sporadic abortions in cattle are mainly caused by opportunistic bacteria and fungi usually present in environmental or gastrointestinal and reproductive microbiota of healthy animals. A retrospective analysis ... -
Effect of on-farm poultry litter composting processes on physicochemical, biological, and toxicological parameters and reduction of antibiotics and antibiotic-resistant Escherichia coli
(Elsevier, 2024-02)Poultry litter is a valuable source of nutrients for crop production, but its use in agriculture can lead to environmental and public health concerns due to the presence of pollutants, antibiotic-resistant bacteria (ARB) ... -
MARCHI: A serious game for participatory governance of ecosystem services in multiple-use protected areas
(Elsevier, 2023-07-28)The management of multiple-use reserves is challenging due to trade-offs between the conservation of natural capital, the provision of different ecosystem services (ES) and the capture of its benefits, as well as a poor ... -
Change of soil carbon storage in monoculture tree plantations across wide environmental gradients: Argentina as a case study
(Elsevier, 2024-01)Forest plantations (through afforestation or reforestation) have been proposed as a valuable option to mitigate carbon (C) emissions. However, high spatiotemporal variation has been observed in soil organic carbon (SOC) ... -
Amaranthus hybridus (syn. quitensis) intoxication in cattle in Argentina: Case report
(Elsevier, 2023-12)Amaranthus spp. is a nephrotoxic plant with unknown toxic principle, affecting production animals worldwide, mainly in South America. The aim of this paper is to describe 5 spontaneous outbreaks of A. hybridus intoxication ... -
Pollen beetle (Astylus atromaculatus)-associated gastroenteric disease in cattle: report of 6 natural outbreaks
(SAGE Publications, 2023-11-29)Astylus atromaculatus is a pollen beetle native to South America, commonly found in crop flowers. Experimental intoxication of sheep and guinea pigs by this beetle resulting in fibrinonecrotizing enteritis has been reported. ... -
Respiratory distress in Holstein cows fed corn silage: case report
(Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste, 2023-11-28)An outbreak of respiratory distress was observed in Holstein cows immediately after consuming a new batch of corn-silage, presumably due to the presence of pneumotoxic gases. Signs were observed in 10% of the cows, and ... -
Exogenous progesterone during in vitro fertilization improves developmental competence of partially cumulus-denuded bovine oocytes
(Elsevier, 2023-11)The progesterone (P4) secreted by cumulus cells has gained attention for its role as a possible physiological inducer of sperm acrosome exocytosis. In mammals, it is generally accepted that fertilization rates of oocytes ... -
Analysis of factors controlling maize yield response to hairy vetch and to nitrogen fertilization after hairy vetch
(Elsevier, 2023-11)Context or problem: Several agricultural producers around the world are adopting hairy vetch (HV) (Vicia villosa Roth) inclusion in the crop sequence before maize (Zea mays L.). To date, it is not clear which factors control ... -
Early-stage findings in an experimental calf model infected with Argentinean isolates of Mycobacterium avium subsp. Paratuberculosis
(Elsevier, 2023-05)Mycobacterium avium subsp. paratuberculosis (MAP) is an important pathogen that causes granulomatous enteritis known as Johne’s disease or paratuberculosis (PTB). In this study an experimental model of calves infected with ... -
Modulation of granzymes mRNA expression in neural tissue of BoAHV-1 and BoAHV-5-infected cattle
(Elsevier, 2023-06)Bovine alphaherpesviruses (BoAHV)-1 and 5 are neurotropic viruses of cattle which differ in their neuropathogenic potential. BoAHV-5 is responsible for non-suppurative meningoencephalitis in calves while BoAHV-1 can ... -
Animal performance and meat quality characteristics from feedlot-finished steers fed increasing levels of wet distillers grain
(Elsevier, 2023-10)One hundred forty-four steers were group-housed in 24 pens that were randomly assigned to one of four dietary treatments defined by the proportion of wet distiller grain plus solubles (WDGS; 0, 15, 30, or 45%) and fed for ... -
Epilithic biofilms as a discriminating matrix for long-term and growing season pesticide contamination in the aquatic environment: Emphasis on glyphosate and metabolite AMPA
(Elsevier, 2023-11)The indiscriminate use of pesticides represents high ecological risk in aquatic systems. Recently, the inclusion of epilithic biofilms as a reactive matrix has shown potential in diagnosing the health of water resources. ... -
Transformation of tall-tussock grasslands and soil water dynamics in the Flooding Pampa
(Elsevier, 2023-10)Cow-calf production is the main practice within marginal agricultural lands of the world, like the Flooding Pampa of Argentina, where it promotes the transformation of native tall-tussock grasslands Paspalum quadrifarium ... -
Transplacental infection by bovine alphaherpesvirus type 1 induces protein expression of COX-2, iNOS and inflammatory cytokines in fetal lungs and placentas
(Elsevier, 2023-11-05)Bovine alphaherpesvirus type 1 (BoAHV-1) is associated with respiratory and reproductive syndromes. Until present the immunologic mechanisms involved in BoAHV-1 abortion are partially known. We studied key elements of the ... -
Occurrence of pesticide residues in indoor dust of farmworker households across Europe and Argentina
(Elsevier, 2023-10)Pesticides are widely used as plant protection products (PPPs) in farming systems to preserve crops against pests, weeds, and fungal diseases. Indoor dust can act as a chemical repository revealing occurrence of pesticides ... -
Enteric mucosal antibodies to Escherichia coli o157:h7 in adult cattle
(Wiley, 2008-08)This short communication describes a study conducted to determine whether antibodies to lee -encoded proteins are detectable in mucosal secretions from the terminal colon and rectum in adult yearling cattle following E ... -
Influence of corn silage supplementation before alfalfa grazing on ruminal environment in relation to the occurrence of frothy bloat in cattle
(Elsevier, 2007-07)Changes in the ruminal environment of cattle supplemented with corn silage (CS) before alfalfa grazing, in relation to the occurrence of frothy bloat, were evaluated. Six ruminally fistulated heifers were used in a crossover ... -
Does forest management affect the magnitude and direction of the afforestation effect on soil methane fluxes? A meta-analysis
(Elsevier, 2022-03)Evidence suggests that tree plantations change soil methane (CH4) fluxes (magnitude and/or direction of the fluxes) compared to herbaceous land (i.e. afforestation effect) due to the effect of trees increasing methanotroph ...