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Abstract

Lameness is a growing concern to the dairy industry worldwide. However, little is known about lameness and its causes in grazing cattle, especially in tropical climates. This study aimed to assess the prevalence of hoof lesions and lameness in dairy herds of all year-round grazing cattle under...

Author(s)
Moreira, T. F.; Nicolino, R. R.; Andrade, L. S. de; Facury Filho, E. J.; Carvalho, A. U. de
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Tropical Animal Health and Production, 2018, 50, 8, pp 1829-1834
Abstract

The objective of this study was to assess the control feasibility of Streptococcus agalactiae subclinical mastitis and its impact in reducing somatic cell counts (SCC) of bulk milk tank. During the lactation, 33 cows positive for Streptococcus agalactiae in microbiological culture were treated with ...

Author(s)
Mendonça, L. C.; Gentilini, M. B.; Carvalho, N. L.; Malacco, V. M. R.; Lage, C. F. de A.; Molina, L. R.
Publisher
Universidade Federal Rural do Semi-Árido (UFERSA), Mossoro, Brazil
Citation
Acta Veterinaria Brasilica, 2017, 11, 1, pp 1-5
AbstractFull Text

Viral infections are frequently associated with reproductive problems in dairy and beef cattle worldwide. The aim of this study was to verify managerial practices that may constitute risk factors associated with infection by BoHV-1 and/or BVDV in dairy herds with a history of reproductive disease...

Author(s)
Barbosa, V. M.; Gondim, C. C.; Nasciutti, N. R.; Oliveira, P. M.; Alfieri, A. A.; Fritzen, J. T. T.; Headley, S. A.; Saut, A. M.; Berssaneti, F. T.; Saut, J. P. E.
Publisher
FEPMVZ - Editora, Belo Horizonte, Brazil
Citation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2019, 71, 4, pp 1243-1250
AbstractFull Text

Subclinical ketosis is a major concern in dairy herds, and its diagnosis and prevention can have a major impact on animal health. This study compared four different sites for collection of blood samples (jugular, mammary and coccygeal veins and tail tip) for measurement of beta-hydroxybutyrate...

Author(s)
Alvarenga, E. A.; Moreira, G. H. F. A.; Facury Filho, E. J.; Leme, F. O. P.; Moreira, T. F.; Carvalho, A. U.
Publisher
FEPMVZ - Editora, Belo Horizonte, Brazil
Citation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2019, 71, 4, pp 1425-1427
Abstract

Cattle lameness is an important welfare concern that also has an economic impact on the dairy industry. It can be a significant problem among pasture-based herds. Our objectives were to identify cow- and herd-level factors related to lameness and hoof lesions in dairy cows grazing year-round in...

Author(s)
Moreira, T. F.; Nicolino, R. R.; Meneses, R. M.; Fonseca, G. V.; Rodrigues, L. M.; Facury Filho, E. J.; Carvalho, A. U.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 11, pp 10369-10378
Abstract

This study analyzes the occurrence and distribution of phylogenetic groups of 391 strains of Escherichia coli isolated from poultry, cattle, and water buffalo. The frequency of the phylogroups was A=19%, B1=57%, B2=2.3%, C=4.6%, D=2.8%, E=11%, and F=3.3%. Phylogroups A (P<0.001) and F (P=0.018) were associated...

Author(s)
Coura, F. M.; Diniz, S. de A.; Silva, M. X.; Mussi, J. M. S.; Barbosa, S. M.; Lage, A. P.; Heinemann, M. B.
Publisher
Hindawi Publishing Corporation, New York, USA
Citation
The Scientific World Journal, 2015, 2015, pp Article ID 258424
Abstract

Bovine mastitis is the most frequent disease worldwide in dairy herds, causing high economic losses to producers and industry, as well as having implications for public health due to the zoonotic potential of some agents involved in its etiology and the increased risk of antimicrobial residues in...

Author(s)
Mesquita, A. A.; Rocha, C. M. B. M.; Bruhn, F. R. P.; Custódio, D. A. C.; Braz, M. S.; Pinto, S. M.; Silva, D. B.; Costa, G. M.
Publisher
Colégio Brasileiro de Patologia Animal, Rio de Janeiro, Brazil
Citation
Pesquisa Veterinária Brasileira, 2019, 39, 5, pp 308-316
Abstract

The objectives of this work were to analyze and to quantify the influence of the production scale on the economic impact of mastitis in dairy cattle herds. The study was conducted through a simulation in the computer system 'CU$TO MASTITE' ('MASTITIS CO$T'), considering dairy cattle with 50; 100...

Author(s)
Demeu, F. A.; Lopes, M. A.; Rocha, C. M. B. M. da; Costa, G. M. da; Santos, G. dos; Franco Neto, A.
Publisher
Editora UFV, Universidade Federal de Viçosa, Viçosa, Brazil
Citation
Revista Ceres, 2015, 62, 2, pp 167-174
Abstract

The aim of this study was to analyze the frequency of macroscopic lesions suggestive of tuberculosis in cattle reacting to the tuberculin test. Cattle of this study were from dairy herds located in the cities of Perdizes, Patos de Minas, Lagoa Formosa and Uberlândia, Minas Gerais, Brazil. We...

Author(s)
Souza, M. A. de; Bombonato, N. G.; Soares, P. M.; Ramos, G. B.; Santos, M. P. dos; Ganda, M. R.; Lima-Ribeiro, A. M. C.
Publisher
Instituto Biológico, São Paulo, Brazil
Citation
Arquivos do Instituto Biológico (São Paulo), 2014, 81, 4, pp 363-367
Abstract

This study was conducted to evaluate the serum concentrations of triiodothyronine (T3) and thyroxine (T4) in two herds of Holstein and Guzerat dairy cattle in a tropical environment. T3 and T4 concentrations were determined in blood samples collected from 27 cows in each herd over eight consecutive ...

Author(s)
Nascimento, M. R. B. de M.; Storti, A. A.; Guimarães, E. C.; Simioni, V. M.
Publisher
Universidade Federal de Uberlândia, Uberlândia, Brazil
Citation
Bioscience Journal, 2013, 29, 1, pp 179-184

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