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Influenza D virus (IDV) has been detected in bovine respiratory disease (BRD) outbreaks, and experimental studies demonstrated this virus's capacity to cause lesions in the respiratory tract. In addition, IDV-specific antibodies were detected in human sera, which indicated that this virus plays a potential zoonotic role. The present study aimed to extend our knowledge about the epidemiologic situation of IDV in Swedish dairy farms, using bulk tank milk (BTM) samples for the detection of IDV antibodies. A total of 461 and 338 BTM samples collected during 2019 and 2020, respectively, were analyzed with an in-house indirect ELISA. In total, 147 (32%) and 135 (40%) samples were IDV-antibody-positive in 2019 and 2020, respectively. Overall, 2/125 (2%), 11/157 (7%) and 269/517 (52%) of the samples were IDV-antibody-positive in the northern, middle and southern regions of Sweden. The highest proportion of positive samples was repeatedly detected in the south, in the county of Halland, which is one of the counties with the highest cattle density in the country. In order to understand the epidemiology of IDV, further research in different cattle populations and in humans is required.
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http://dx.doi.org/10.3390/v15040829 | DOI Listing |
Ital J Food Saf
September 2025
Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich.
Colchicine poisoning in livestock presents a significant challenge for dairy farming, particularly in regions where Colchicum autumnale (autumn crocus) is prevalent in pastures. This case report describes an incident on an organic dairy farm in Eastern Switzerland where Brown Swiss cattle showed clinical signs after consuming freshly mown meadow forage containing autumn crocus leaves. The ingestion of this highly toxic plant led to severe effects such as apathy, hypothermia, and reduced milk production, which required immediate veterinary intervention.
View Article and Find Full Text PDFVet Sci
July 2025
Department of Dairy Research, Institute of Technology of Agricultural Products, Hellenic Agricultural Organization "DIMITRA", Katsikas, 45221 Ioannina, Epirus, Greece.
The role of spp. in food is debated since this group of lactic acid bacteria contains opportunistic pathogenic strains, some of which exhibit a multidrug-resistant profile. In livestock farms, the use of antibiotics is the most common practice to deal with mastitis-causing bacteria.
View Article and Find Full Text PDFJ Food Prot
August 2025
Grupo Centauro, Escuela de Medicina Veterinaria, Facultad de Ciencias Agrarias, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia. Electronic address:
Antimicrobial residues in bulk tank milk (BTM) are often linked to the treatment of bovine mastitis, the main disease in specialized dairy herds. These residues cause economic losses, especially in fermented dairy production and may pose health risks to consumers. Limited data exist on antimicrobial residues in raw milk in Colombia; thus, this study aimed to characterize antimicrobial use and detect residues in BTM from specialized dairy herds.
View Article and Find Full Text PDFJ Dairy Sci
August 2025
Teagasc Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 P302. Electronic address:
The objectives of this experiment were (1) to identify associations between nutritional and non-nutritional factors and bulk tank milk fat concentration and (2) to develop a multivariable model capable of predicting herd-level milk fat concentration for Irish commercial spring-calving grazing dairy herds. An observational experiment comprising 25 commercial spring-calving dairy herds was conducted over a 2-yr period. Farms were visited 10 times per year, which coincided with each grazing rotation.
View Article and Find Full Text PDFAnimals (Basel)
August 2025
Faculty of Public and One Health, University of Thessaly, 43100 Karditsa, Greece.
The objectives of the present work were as follows: (i) the detection of cathelicidin biomolecules in the milk of individual goats during the early stages of mastitis and their potential use for the diagnosis of mastitis at its early stage and (ii) the evaluation of the presence of cathelicidin proteins in the bulk-tank milk from goat and sheep farms. In an experimental study, after inoculation of into a mammary gland of goats, bacteriological and cytological examinations of milk samples, as well as proteomics examinations [two-dimensional gel electrophoresis analysis (2-DE) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometer (MALDI-TOF MS) analysis] were performed sequentially, from 4 to 48 h post-challenge. Cathelicidin-1 and cathelicidin-2 were detected consistently in milk samples obtained throughout the study, and spot optical densities obtained from PDQuest v.
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