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Genetic analysis on accumulated productivity and calving intervals in Nelore cattle
(Tropical Animal Health And Production, 2015) [Artigo]
The aim of this study was to estimate genetic parameters for accumulated productivity (ACP), first calving interval (CI1), second calving interval (CI2), and mean calving interval (MCI) in Nelore beef cattle. The ACP trait ...
Graded meshes in bio-thermal problems with transmission-line modeling method
(Journal Of Thermal Biology, 2014) [Artigo]
In this study, the transmission-line modeling (TLM) applied to bio-thermal problems was improved by incorporating several novel computational techniques, which include application of graded meshes which resulted in 9 times ...
Ractopamine in diets for finishing gilts
(Revista Brasileira de Zootecnia, 2011-04-01) [Artigo]
Foi realizado um experimento utilizando-se 468 fêmeas, com peso inicial de 84,77 ± 7,20 kg, alojadas em 36 baias, para avaliar os efeitos da adição de ractopamina nas dietas sobre o desempenho, as características e os ...
Body condition score of Nellore beef cows: a heritable measure to improve the selection of reproductive and maternal traits
(Animal : An International Journal Of Animal Bioscience, 2015) [Artigo]
Despite the economic importance of beef cattle production in Brazil, female reproductive performance, which is strongly associated with production efficiency, is not included in the selection index of most breeding programmes ...
Estudio de efectos ambientales y genéticos que influyen en la producción de leche y duración de lactación en bovinos de raza guzerat
(Livestock Research for Rural Development, 2011-07-01) [Artigo]
Objective of present work was study a influence of environmental and genetic effects over characteristics of milk total production (PL) and lactation duration (DL), from 2572 lactations of 477 Guzerat cows, collected since ...
Glicerina bruta na dieta de bovinos de corte confinados: Efeito sobre o hemograma
(Brazilian Journal of Veterinary Research and Animal Science, 2012-12-01) [Artigo]
The aim of this study was to evaluate the hemogram in cattle fed crude glycerin. 30 Nellore steers, were used for blood sampling, which were done each 28 days. The animals were confined for 103 days and were fed with five ...
Association between ACTA1 candidate gene and performance, organs and carcass traits in broilers
(Poultry Science, 2015-10-16) [Artigo]
This study investigates the genetic association of the SNP present in the ACTA1 gene with performance traits, organs and carcass of broilers to help marker-assisted selection of a paternal broiler line (TT) from EMBRAPA ...
Avaliação da produção de leite e contagem de células somáticas em bovinos leiteiros suplementads com Saccharomyces cerevisiae como fonte de zinco orgânico
(Semina: Ciências Agrárias, 2007-10-01) [Artigo]
The aim of the evaluation of milk production and somatic cell count of dairy cow supplemented with Saccharomyces cerevisiae as a source of organic zinc for 180 days, 25 Holstein cows were selected, randomly chosen from a ...
Strategies for genotype imputation in composite beef cattle
(BMC Genetics, 2015-08-07) [Artigo]
Genotype imputation has been used to increase genomic information, allow more animals in genome-wide analyses, and reduce genotyping costs. In Brazilian beef cattle production, many animals are resulting from crossbreeding ...
Estimates of covariance functions for growth from birth to 630 days of age in Nelore cattle
(Journal Of Animal Science, 2001) [Artigo]
Weight records of Brazilian Nelore cattle, from birth to 630 d of age, recorded every 3 mo, were analyzed using random regression models. Independent variables were Legendre polynomials of age at recording. The model of ...