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Abstract

Inbreeding depression is caused by breeding between closely related individuals and can have a significant negative impact on cattle production. It can be estimated at the population level using pedigree analysis or molecular markers. Such estimations can then be used to better manage the genetic...

Author(s)
Amaral, R. dos S.; Malhado, C. H. M.; Martins Filho, R.; Malhado, A. C. M.; Rezende, M. P. G.; Ambrosini, D. P.; Carneiro, P. L. S.
Publisher
Universidade Federal do Paraná, UFPR, Palotina, Brazil
Citation
Archives of Veterinary Science, 2019, 24, 3, pp 68-78
AbstractFull Text

The semi-arid region of Brazil represents approximately 57% of the northeastern territory. The main economic activity in this region is agriculture and livestock, in most cases, using traditional technologies. However, there is little published information currently available on cattle-raising in...

Author(s)
Barbosa, A. C. B.; Oliveira, I. R.; Malhado, A. C. M.; Carneiro, P. L. S.; Martins Filho, R.; Malhado, C. H. M.
Publisher
Universidade Estadual de Maringá, Maringá, Brazil
Citation
Acta Scientiarum - Animal Sciences, 2015, 37, 4, pp 429-435
Abstract

Reproductive isolation of cattle herds should have significant negative genetic consequences, including inbreeding depression and the loss of diversity through genetic drift. Cattle herds may also suffer detrimental effects on genetic variance caused by other demographic and population parameters...

Author(s)
Falleiro, V. B.; Malhado, C. H. M.; Malhado, A. C. M.; Carneiro, P. L. S.; Carrillo, J. A.; Song, J. Z.
Publisher
Canadian Center of Science and Education, Toronto, Canada
Citation
Journal of Agricultural Science (Toronto), 2014, 6, 12, pp 276-285
Abstract

Data are typically discarded when there are inconsistencies in a database, or when information is discrepant or out of range for the biological characteristics of the species being analyzed. However, such loss of information could have considerable implications for genetic evaluation of cattle....

Author(s)
Malhado, C. H. M.; Malhado, A. C. M.; Martins Filho, R.; Carneiro, P. L. S.; Pala, A.; Carrillo, J. A.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Livestock Science, 2013, 154, 1/3, pp 28-33
Abstract

The objective of this work was to evaluate the population structure and the genetic and phenotypic progress of Nelore cattle in Northern Brazil. Pedigree information concerning animals born between 1942 and 2006 were analyzed. Population structure was performed using the Endog program. Out of the...

Author(s)
Malhado, C. H. M.; Carneiro, P. L. S.; Malhado, A. C. M.; Martins Filho, R.; Bozzi, R.; Ladle, R. J.
Publisher
Embrapa Informacao Tecnologica, Brasil
Citation
Pesquisa Agropecuária Brasileira, 2010, 45, 10, pp 1109-1116
Abstract

This paper provides an evaluation of the population structure, phenotype and genetic trends of registered Gyr herd cattle in northeast Brazil. The study provides important baseline information for the management, conservation and potential population expansion of this economically and culturally...

Author(s)
Malhado, C. H. M.; Carneiro, P. L. S.; Malhado, A. C. M.; Martins, J. A. M.; Martins Filho, R.; Bozzi, R.
Publisher
Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria, Brazil
Citation
Ciência Rural, 2010, 40, 6, pp 1385-1391
Abstract

The objective of this study was to use pedigree analysis to evaluate the population structure and genetic variability in the Murrah dairy breed of water buffalo (Bubalus bubalis) in Brazil. Pedigree analysis was performed on 5,061 animals born between 1972 and 2002. The effective number of founders ...

Author(s)
Malhado, C. H. M.; Malhado, A. C. M.; Carneiro, P. L. S.; Ramos, A. A.; Ambrosini, D. P.; Pala, A.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2012, 44, 8, pp 1891-1897

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