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Interação genótipo-ambiente para peso ao sobreano na raça Canchim
(Universidade Estadual Paulista (UNESP), 2009-01-29)
A presença de interação genótipo-ambiente é caracterizada pela resposta diferente de genótipos às variações ambientais, e pode ocasionar alteração na classificação de desempenho dos genótipos em diferentes ambientes. Assim ...
Estimativas de herdabilidade e tendências genéticas para características de crescimento e reprodutivas em bovinos da raça Nelore: Estimates of heritability and genetic trends for growth and reproduction traits in Nelore cattle
(Universidade Federal de Minas Gerais (UFMG), Escola de Veterinária, 2014)
Interação genótipo-ambiente para peso ao sobreano na raça Canchim
(Universidade Estadual Paulista (UNESP), 2014)
Genotype by environment interaction for post-weaning weight gain, scrotal circumference, and muscling score of composite beef cattle in different regions of Brazil
(Funpec-editora, 2014-01-01)
The objectives of this study were to characterize and define homogenous production environments of composite beef cattle in Brazil in terms of climatic and geographic variables by using multivariate exploratory techniques; ...
Study of the effect of genotype-environment interaction on age at first calving and production traits in Nellore cattle using multi-trait reaction norms and Bayesian inference
(Wiley-Blackwell, 2018-07-01)
This study investigated the effects of genotype-environment interaction on yearling weight, age at first calving and post-weaning weight gain in Nellore cattle using multi-trait reaction norm models. The environmental ...
Estimativas de herdabilidade e tendências genéticas para características de crescimento e reprodutivas em bovinos da raça Nelore: Estimates of heritability and genetic trends for growth and reproduction traits in Nelore cattle
(Universidade Federal de Minas Gerais (UFMG), Escola de Veterinária, 2011-02-01)
Foram estimados os coeficientes de herdabilidade e a mudança genética para peso à desmama (PD), peso ao sobreano (PS), ganho de peso do nascimento à desmama (GND), ganho de peso da desmama ao sobreano (GDS), perímetro ...
Genetic correlation of traits measured by ultrasound at yearling and 18 months of age in Nellore beef cattle
(2015-01-01)
The objective of this study was to estimate genetic parameters for carcass traits measured by ultrasound at yearling (Y) and 18 months of age (post-yearling, PY) in order to identify the most appropriate age for the ...
DESEMPENHO PONDERAL DE MACHOS CHAROLÊS, NELORE E SUAS CRUZAS F1
(Universidade Federal de Santa MariaBRZootecniaUFSMPrograma de Pós-Graduação em Zootecnia, 2012-02-28)
The objective of the present study was to evaluate in Charolais and Nellore calves
and their crossbred F1 the genetic (crossbreed system, genetic group and heterotic and
racial additive effects) and environmental effects ...
Selection for higher body weight in Nelore cattle is effective in achieving an increase of longissimus muscle area without reducing subcutaneous fat thickness
(Sociedade Brasileira de Zootecnia, 2012-06-01)
The objectives of this study were to estimate heritabilities and genetic and phenotypic correlations between carcass traits measured by ultrasound and other economically important traits generally used as selection criteria ...
Portal Vein Dopplerflowmetry in healthy sheep according to age
(2017-01-01)
Pulsed Doppler ultrasound was used to evaluate portal blood flow, portal velocity and portal congestion index in 24 healthy sheep divided into groups (lambs, yearlings and ewes), according to age. Measurements were performed ...