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Abstract

Bovine brucellosis poses a risk to human health and causes serious economic losses for the animal industry. This report describes the use of different diagnostic methods for the diagnosis of brucellosis in cattle affected by cervical bursitis from a slaughterhouse located in São Luís, Maranhão,...

Author(s)
Macedo, A. A. de; Galvão, N. R.; Sá, J. C.; Silva, A. P. de C. da; Mol, J. P. da S.; Santos, L. S. dos; Santos, R. L.; Neta, A. V. de C.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Tropical Animal Health and Production, 2019, 51, 3, pp 697-702
Abstract

We compared different Bayesian models to handle censored data for genetic parameters estimation of age at first calving (AFC) in Brazilian Brahman cattle. Data from females with AFC above 1825 days of age were assumed to have failed to calve and were considered as censored records. Data including...

Author(s)
Fernandes Lázaro, S.; Varona, L.; Fonseca e Silva, F.; Ventura, H. T.; Veroneze, R.; Brito, L. C.; Costa, E. V.; Sávio Lopes, P.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Livestock Science, 2019, 221, pp 177-180
AbstractFull Text

The objective of this study was to evaluate the technical and economic efficiency of different methods of cattle weighing, and to develop mathematical equations to estimate the breakeven point for the adoption of electronic weighing, i.e., to estimate how many animals are required for the...

Author(s)
Lopes, M. A.; Vieira, J. A.; Lima, F. H. S. de; Demeu, F. A.; Bruhn, F. R. P.; Pereira, A.; Vicente, F. H.; Casas, P. S.
Publisher
Universidade Estadual de Londrina, Londrina, Brazil
Citation
Semina: Ciências Agrárias (Londrina), 2018, 39, 3, pp 1167-1179
Abstract

The state of Mato Grosso is Brazil's agribusiness powerhouse with a cattle herd of 30.2 million head in 2017. With land use patterns heavily influenced by beef production, which requires substantial land inputs, the state is a key target for environmental conservation. Yet the spatial and temporal...

Author(s)
Vale, P.; Gibbs, H.; Vale, R.; Munger, J.; Brandão, A., Jr.; Christie, M.; Florence, E.
Publisher
Public Library of Sciences (PLoS), San Francisco, USA
Citation
PLoS ONE, 2019, 14, 4, pp e0215286
Abstract

There are few studies on the genetic diversity of Anaplasma marginale in Brazilian cattle herds, especially about beef cattle. The objective of this study was to evaluate the genetic diversity of A. marginale, based on the msp1α gene in Bos taurus indicus sampled from the Brazilian Pantanal....

Author(s)
Ramos, I. A. de S.; Herrera, H. M.; Fernandes, S. de J.; Amaral, R. B. do; Zanatto, D. C. de S.; Silva, T. M. V. da; Horta, B. le S.; Campos, J. B. V.; Alves, J. V. A.; Macedo, G. C. de; Machado, R. Z.; André, M. R.
Publisher
Elsevier GmbH, München, Germany
Citation
Ticks and Tick-borne Diseases, 2019, 10, 4, pp 805-814
Abstract

The objective was to estimate the genetic parameters for the cow's ability to stay in the herd (stayability) until 48 and 54 months of age (STAY48 and STAY54) and up to 36 and 48 months after the first calving (STAY36ac and STAY48ac), and their associations with 305-day milk production (MP305) in...

Author(s)
Rocha, G. M. F.; Cobuci, J. A.; Costa, C. N.; Abreu, L. R. A.; Mota, L. F. M.; Pires, A. V.; Villela, S. D. J.; Martins, P. G. M. A.
Publisher
CSIRO, Collingwood, Australia
Citation
Animal Production Science, 2018, 58, 10, pp 1788-1793
Abstract

International committees that have published nutrient requirements for dairy cattle have used data from mineral studies conducted in the 1920s to 1970s, and no study has reported data from animals less than 100 kg; therefore, there is a need to update mineral requirements for preweaned dairy...

Author(s)
Castro, M. M. D.; Silva, A. L.; Costa e Silva, L. F.; Rotta, P. P.; Engle, T. E.; Marcondes, M. I.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 4, pp 2973-2984
Abstract

Babesia bovis is the etiological agent of bovine babesiosis, a disease transmitted by Rhipicephalus microplus, which affects cattle herds in tropical and subtropical regions of the world, causing significant economic losses due to decreasing meat and milk yield. This study used molecular techniques ...

Author(s)
Mendes, N. S.; Ramos, I. A. de S.; Herrera, H. M.; Campos, J. B. V.; Alves, J. V. de A.; Macedo, G. C. de; Machado, R. Z.; André, M. R.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Parasitology Research, 2019, 118, 7, pp 2027-2040
Abstract

Improving reproductive indexes is of extreme importance in beef cattle production systems, as well as investigating new methodologies and traits in order to increase genetic gains for reproduction. Reproductive efficiency directly affects the profitability and productivity of herds, being an...

Author(s)
Kluska, S.; Silva, L. O. C.; Maia, F. M. C.; Lourenco, D. L.; Stivanin, T. E.; Baldi, F.; Peripolli, E.; Martins, E. N.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2018, 30, 5, pp Article 82
Abstract

The Guzerá National Milk Improvement Programme is a work carried out by Embrapa Gado de Leite and the Brazilian Centre for Genetic Improvement of Guzerá. It involves the participation of several public and private orgranizations. This programme is based on the integration of modern animal breeding...

Author(s)
Bruneli, F. A. T.; Peixoto, M. G. C. D.; Santos, G. G. dos; Arbex, W. A.; Penna, V. M.; Zadra, L. E. F.; Josahkian, L. A.; Verneque, R. da S.; Machado, M. A.; Panetto, J. C. do C.; Lôbo, R. B.; Carvalho, M. R. S.
Publisher
Embrapa Gado de Leite, Juiz de Fora, Brazil
Citation
Documentos - Embrapa Gado de Leite, 2018, No.218, pp 77 pp.

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