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Mostrando ítems 1-20 de 20
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Antimicrobial resistance trends of Staphylococcus aureus isolated from bovine intramammary infections from 1990 to the present time in Argentina
(2018)Staphylococcus aureus is one of the most prevalent major mastitis pathogens in dairy herds worldwide. Antimicrobial therapy is one of the bases of S. aureus mastitis control programmes, both for subclinical cases at drying ... -
Detection by multiplex PCR of Mycoplasma species associated with dairy cattle in Argentina = Detección por PCR multiplex de especies de Mycoplasma asociadas a ganado lechero en Argentina
(Elsevier, 2021)There is scarce information about the frequency and epidemiological and clinical features associated with the presence of Mycoplasma spp. in Argentine dairy herds. The objectives of this study were to develop a multiplex ... -
Development, validation and field evaluation of an indirect ELISA for the detection of antibodies against Brucella abortus in bulk and individual milk samples in dairy cattle
(Elsevier, 2022-11)Brucellosis is an abortigenic and zoonotic disease. In cattle, it is mainly caused by Brucella abortus. The disease is endemic in low- and middle-income countries, being considered a neglected zoonotic disease. In these ... -
Epidemiological Description of Cystic Ovarian Disease in Argentine Dairy Herds: Risk Factors and Effects on the Reproductive Performance of Lactating Cows
(Wiley, 2014-12)To describe the epidemiology of cystic ovarian disease (COD), to find possible risk factors associated with the incidence of cysts and to analyse the impact of COD on the reproductive performance of dairy cows, databases ... -
Estimación de pérdidas económicas causadas por Trypanosoma vivax en un rodeo lechero de Argentina
(Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste, 2020)En Argentina T. vivax fue descrito por primera vez en 2006 afectando ganado de carne de la Provincia de Formosa. Durante el verano/otoño de 2016/2017 se observaron los primeros brotes en la zona central de la Provincia de ... -
Evaluación de indicadores metabólicos y bioquímicos sanguíneos en vacas en lactancia con Enfermedad Quística Ovárica = Evaluation of metabolic and biochemical blood parameters in lactating cows with Cystic Ovarian Disease
(Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, 2013)El objetivo de este trabajo fue determinar y evaluar indicadores bioquímicos sanguíneos asociados a procesos metabólicos energéticos, proteicos, minerales y de funcionalidad hepática, junto con parámetros productivos y ... -
Feeding Calcium Salts of Linseed Oil on Productive Performance and Milk Fatty Acid Profile in Grazing Dairy Cows
(Scientific Research Publishing, 2020-10)The objective of this study was to determine the effect of supplying calcium salts of linseed oil (Ca-FA) rich in omega-3 (α-linolenic acid) on the production and chemical composition of milk and its nutraceutical value ... -
First report of Mycoplasma leachii isolation associated with disease in dairy calves in Argentina = Primer aislamiento de Mycoplasma leachii asociado a enfermedad en terneros de tambo en Argentina
(2018)There are few reports about the isolation of Mycoplasma species associated with cattle disease in Argentina. In this work we describe the detection of Mycoplasma leachii associated with disease in dairy calves in Santa Fe ... -
Genome-wide association study for somatic cell score in Argentinean dairy cattle
(2015-05)This study aimed to understand the genomic architecture of Argentinean dairy herds by measuring linkage disequilibrium (LD) and identifying loci associated with parameters calculated from somatic cell count (SCC). Phenotypic ... -
Genomic prediction of bull fertility in US Jersey dairy cattle
(Elsevier, 2019-04)Service sire has a major effect on reproductive success in dairy cattle. Recent studies have reported accurate predictions for Holstein bull fertility using genomic data. The objective of this study was to assess the ... -
Genotypic and phenotypic detection of capsular polysaccharide and biofilm formation in Staphylococcus aureus isolated from bovine milk collected from Brazilian dairy farms
(2016-12)Staphylococcus aureus is a pathogen that frequently causes mastitis in bovine herds worldwide. This pathogen produces several virulence factors, including cell-associated adhesins, toxic and cytolytic exoproteins, and ... -
Identificación de factores de riesgos asociados a la presentación de endometritis en bovinos lecheros
(Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, 2014)El objetivo del presente trabajo fue identificar factores asociados a la presentación de endometritis en vacas lecheras posparto. Se muestrearon 152 vacas (aproximadamente con 40 días posparto) pertenecientes a cuatro ... -
Impacto de factores de manejo sobre la concepción en vaquillonas lecheras
(Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba, 2020)El incremento del número de vaquillonas preñadas por unidad de tiempo mejora la eficiencia reproductiva en rodeos lecheros. El objetivo de este trabajo fue analizar el efecto de factores de manejo sobre la concepción. Se ... -
Performance of dairy cows supplemented with by-pass fat under heat stress conditions
(Scientific Research Publishing Inc., 2023-01)The objective of this study was to determine the effect of supplementation with a protected fat source on the productive response, metabolic environment and physiological indicators in Holstein cows under heat stress ... -
Predicting male fertility in dairy cattle using markers with large effect and functional annotation data
(BMC, 2019-04)Background: Fertility is among the most important economic traits in dairy cattle. Genomic prediction for cow fertility has received much attention in the last decade, while bull fertility has been largely overlooked. The ... -
Seroprevalencia de paratuberculosis bovina en rodeos de cría y de leche de dos departamentos de la provincia de Santa Fe (Argentina) = Prevalence of paratuberculosis in dairy and beef cattle in two departmen of Santa Fe province (Argentina)
(Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, 2019)La paratuberculosis (PTB) es una enfermedad crónica granulomatosa del tracto gastrointestinal causada por Mycobacterium avium subsp. paratuberculosis (MAP), que afecta a rumiantes domésticos y silvestres. La enfermedad ha ... -
Single nucleotide polymorphisms in candidate genes and their relation with somatic cell scores in Argentinean dairy cattle
(2015-11)The prevention and control of bovine mastitis by enhancing natural defenses in animals is important to improve the quality of dairy products. Mastitis resistance is a complex trait which depends on genetic components, as ... -
Survey of potential factors involved in the low frequency of CP5 and CP8 expression in Staphylococcus aureus isolates from mastitis of dairy cattle from Argentina, Chile, and Uruguay
(2018-08)Staphylococcus aureus produces capsular polysaccharides (CPs) both in vivo and under defined culture conditions being serotypes 5 and 8 the most prevalent. S. aureus isolates that fail to produce CP5 or CP8 are defined as ... -
Susceptibilidad a antibióticos de Staphylococcus aureus aislados de mastitis bovina en lecherías de la cuenca central de Argentina
(2016-09)La mastitis bovina causa cuantiosas pérdidas económicas al productor lechero y la industria láctea a nivel mundial. Staphylococcus aureus es uno de los principales patógenos mayores causantes de infecciones intramamarias, ... -
The association between mastitis and reproductive performance in seasonally-calved dairy cows managed on a pasture-based system = Asociación entre la mastitis y el desempeño reproductivo en rodeos lecheros Holstein de base pastoril y servicios estacionados
(2014)The objective of this study was to assess association between clinical, subclinical mastitis, body condition score and the reproductive performance of cows under seasonally calving conditions in a pasture-based management ...