Temas
Mostrando ítems 61-80 de 83
-
Occurrence of Cryptosporidium and other enteropathogens and their association with diarrhea in dairy calves of Buenos Aires province, Argentina
(Elsevier, 2021-04)Cryptosporidiosis of neonatal dairy calves causes diarrhea, resulting in important economic losses. In Argentina, prevalence values of Cryptosporidium spp. and other enteropathogens such as group A rotavirus (RVA), bovine ... -
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 ... -
Potential contribution of genomics and biotechnology in animal production
(Biblioteca Básica de Agricultura, 2015)Integration of Latin American countries into international agricultural markets requires animal production systems to be competitive. Demand of animal products is increasing due to population growth, and changes in lifestyle ... -
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 ... -
Prevalence and risk factors for shedding of Cryptosporidium spp. oocysts in dairy calves of Buenos Aires Province, Argentina
(2016)In order to determine the prevalence and risk factors for shedding of Cryptosporidium spp. in dairy calves, a cross-sectional study was carried out in the northeastern region of Buenos Aires Province, Argentina. Fecal ... -
Prevalence and risk factors of teat end hyperkeratosis in cows from the Urals region of Russia
(Ediciones INTA, 2022-11)Diseases of the dairy herd negatively affect the period of economic use of animals, the volume of milk production and its quality. In this regard, early diagnosis of diseases and their causes will reduce the incidence of ... -
Producción, comportamiento y bienestar de vacas lecheras sometidas a estrés calórico en la Argentina : evaluación económica del sistema de refrigeración en el sector de comedero
(Facultad de Agronomía, Universidad de Buenos Aires, 2019-07)Las condiciones meteorológicas estivales en las diferentes cuencas lecheras de Argentina se alejan de la zona de confort térmico del rodeo lechero, impactando negativamente en el consumo de Materia Seca (MS), la producción ... -
Productive response to two concentrate allocation strategies in dairy cows grazing with restricted pasture allowance
(2019-02)The objective of this study was to compare the effects of two concentrate allotment strategies on the performance of dairy cows grazing on restricted pasture and supplemented with conserved forage. Dairy cows fed equal ... -
Quantitative trait loci exploration and characterization of gestation length in Holstein cattle
(Elsevier, 2024-02)Gestation length (GL) is a moderately heritable trait in cattle with economic and management implications. This study aimed to characterize the gestation length of an Argentinian Holstein cattle population, understand ... -
¿Qué efecto pueden producir las micotoxinas en el ganado lechero?
(Estación Experimental Agropecuaria Balcarce, INTA, 2021-09)Las micotoxinas son metabolitos secundarios producidos por hongos que contaminan los alimentos. Esta contaminación se puede producir en el campo, durante la cosecha o en el almacenamiento, conservación o procesamiento de ... -
Relevant loci for milk production in dairy cattle, obtained by machine learning algorithms
(Network of Women in Bioinformatics and Data Science, 2021-09)Background: Extensive genetic research focused on identifyng associations between single nucleotide polymorphism (SNP) markers located all over the genome and milk traits were conducted for different dairy cattle breeds. ... -
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 ... -
Single nucleotide polymorphisms in candidate genes associated with milk yield in Argentinean Holstein and Holstein x Jersey cows
(2018-12)Research on loci influencing milk production traits of dairy cattle is one of the main topics of investigation in livestock. Many genomic regions and polymorphisms associated with dairy production have been reported ... -
Síndrome de vena cava caudal en vacas de leche: descripción de 5 casos en Argentina
(Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, 2023-06-21)Este artículo describe los hallazgos clínicos y patológicos de 5 casos de trombo-embolismo de la vena cava caudal en bovinos lecheros adultos diagnosticados entre 2013 y 2022 en Argentina. La trombosis de la vena cava suele ... -
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, ... -
Systemic granulomatous disease in dairy cattle from Argentina
(Brazilian Association of Veterinary Pathology, 2019-05-30)An outbreak of systemic granulomatous disease of unknown etiology was diagnosed in a dairy herd from Argentina. Eleven out of 211 cows manifested hyperthermia, depression, alopecia, pruritus, decreased milk production and ... -
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 ... -
Triticale y cebada como verdeos alternativos de avena en Nogoyá, Entre Ríos
(Estación Experimental Agropecuaria Paraná, INTA, 2022)Este artículo pretende sistematizar la evaluación productiva y sanitaria de cereales utilizados en zonas templadas como verdeos, tal es el caso de triticale (x Triticosecale Wittmack) y cebada (Hordeum vulgare). Los ...