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AbstractFull Text

The aim of this study was to evaluate the differences between lineages of Nellore breed for carcass and meat quality traits. Thirteen lineages of Nellore breed were evaluated from data of carcass and meat quality of 516 animals for estimating the expected progeny difference for hot carcass weight,...

Author(s)
Bonin, M. de N.; Ferraz, J. B. S.; Eler, J. P.; Luz e Silva, S. da; Rezende, F. M. de; Cucco, D. de C.; Carvalho, M. E.; Silva, R. C. G. da; Oliveira, E. C. de M.
Publisher
Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria, Brazil
Citation
Ciência Rural, 2014, 44, 10, pp 1860-1866
Abstract

The objective of the present study was to identify genetic variation in heifer pregnancy due to heat stress in Nelore cattle during the breeding season. The Nelore heifers were born between 2003 and 2013 on six farms located in three Brazilian States. Heifer pregnancy (HP) was analyzed as a binary...

Author(s)
Santana Júnior, M. L.; Eler, J. P.; Oliveira Júnior, G. A.; Bignardi, A. B.; Pereira, R. J.; Ferraz, J. B. S.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Livestock Science, 2018, 218, pp 101-107
Abstract

In tropical production systems, beef cattle are raised in highly heterogeneous environments. Heterogeneity is, therefore, expected to exist in the (co)variance components for traits of economic interest in different production environments. The main objective of the present study was to estimate...

Author(s)
Santana Júnior, M. L.; Eler, J. P.; Bignardi, A. B.; Boligon, A. A.; Ferraz, J. B. S.
Publisher
CSIRO, Collingwood, Australia
Citation
Animal Production Science, 2018, 58, 7, pp 1201-1209
Abstract

The objective of this study was to investigate, in a population of crossbred cattle, the obtainment of the non-additive genetic effects for the characteristics weight at 205 and 390 days and scrotal circumference, and to evaluate the consideration of these effects in the prediction of breeding...

Author(s)
Bueno, R. S.; Torres, R. de A.; Ferraz, J. B. S.; Lopes, P. S.; Eler, J. P.; Mourão, G. B.; Almeida e Silva, M. de; Mattos, E. C. de
Publisher
Sociedade Brasileira de Zootecnia, Viçosa, Brazil
Citation
Revista Brasileira de Zootecnia, 2012, 41, 5, pp 1140-1145
Abstract

The objective of this study was to identify the genetic variation in the weaning weight (WW) of beef cattle as a function of heat stress. The WWs were recorded at approximately 205 days of age in three Brazilian beef cattle populations: Nelore (93 616), Brangus (18 906) and Tropical Composite (62...

Author(s)
Santana Júnior, M. L.; Bignardi, A. B.; Eler, J. P.; Ferraz, J. B. S.
Publisher
Wiley-Blackwell, Berlin, Germany
Citation
Journal of Animal Breeding and Genetics, 2016, 133, 2, pp 92-104
AbstractFull Text

The animal breeding programs of beef cattle in Brazil have focused on selection for weight traits due to the fact that they are measures easily obtained. Within this context, it was analyzed data of 74,547 animals to evaluate the mature weight (MW) and the mature weight with repeated measurements...

Author(s)
Pedrosa, V. B.; Eler, J. P.; Ferraz, J. B. S.; Silva, J. A. II de V.; Ribeiro, S.; Silva, M. R.; Pinto, L. F. B.
Publisher
Escola de Medicina Veterinária, Universidade Federal da Bahia, Bahia, Brazil
Citation
Revista Brasileira de Saude e Producao Animal, 2010, 11, 1, pp 104-113
Abstract

The association between two single nucleotide polymorphisms (SNPs), T945M and UCP1SNP1, with hot carcass weight (HCW, kg, N=618), longissimus dorsi muscle area (REA, cm2, N=633), and backfat thickness (BF, mm, N=625), measured in Nellore cattle in Brazil, was evaluated. Likelihood ratio tests were...

Author(s)
Ferraz, J. B. S.; Pinto, L. F. B.; Meirelles, F. V.; Eler, J. P.; Rezende, F. M. de; Oliveira, E. C. M.; Almeida, H. B.; Woodward, B.; Nkrumah, D.
Publisher
FUNPEC, Brazil
Citation
Genetics and Molecular Research, 2009, 8, 4, pp 1360-1366
Abstract

In order to determine whether selection for traits included in the selection index used in a breeding program would increase the mature weight (MW) of females, this study analyzed the association between MW and four traits composing the index: weaning weight (WW), post-weaning weight gain in 345...

Author(s)
Silva, B. C. A.; Eler, J. P.; Santana, M. L.; Mattos, E. C.; Menezes, I. R.; Ferraz, J. B. S.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Livestock Science, 2018, 211, pp 61-65
Abstract

This study aimed to evaluate the existence of genotype × environment interaction (G × E) for weaning weight in Nellore cattle, using reaction norms. Thus, 58,032 records of weaning weight adjusted to 205 days (WW) were analyzed, from animals born between 1987 and 2005, originating from three herds...

Author(s)
Ribeiro, S.; Eler, J. P.; Pedrosa, V. B.; Rosa, G. J. M.; Ferraz, J. B. S.; Balieiro, J. C. C.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Livestock Science, 2015, 176, pp 40-46
Abstract

Genetic evaluations in Brazil are performed within each animal breed; however, with the wide range of extant genetic groups in the country and the increased use of genetic crossing as a form of rapid meat production, more elaborate programs that can jointly evaluate animals of different genetic...

Author(s)
Bocchi, A. L.; Oliveira, H. N.; Ferraz, J. B. S.; Eler, J. P.
Publisher
FUNPEC, Brazil
Citation
Genetics and Molecular Research, 2016, 15, 4, pp 15048382

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