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Breeding value accuracy estimates for growth traits using random regression and multi-trait models in Nelore cattle
(Funpec-editora, 2011-01-01)
We quantified the potential increase in accuracy of expected breeding value for weights of Nelore cattle, from birth to mature age, using multi-trait and random regression models on Legendre polynomials and B-spline ...
Buffalos milk yield analysis using random regression models
(Pagepress Publ, 2007-01-01)
Data comprising 1,719 milk yield records from 357 females (predominantly Murrah breed), daughters of 110 sires, with births from 1974 to 2004, obtained from the Programa de Melhoramento Genetic de Bubalinos (PROMEBUL) and ...
Buffalos milk yield analysis using random regression models
(2007-12-01)
Data comprising 1,719 milk yield records from 357 females (predominantly Murrah breed), daughters of 110 sires, with births from 1974 to 2004, obtained from the Programa de Melhoramento Genético de Bubalinos (PROMEBUL) and ...
Estimation of genetic parameters for partial egg production periods by means of random regression models
(Funpec-editora, 2012-01-01)
We estimated genetic parameters for egg production in different periods by means of random regression models, aiming at selection based on partial egg production from a generation of layers. The production was evaluated ...
Beta-binomial/Poisson regression models for repeated bivariate counts
(JOHN WILEY & SONS LTD, 2008)
We analyze data obtained from a study designed to evaluate training effects on the performance of certain motor activities of Parkinson`s disease patients. Maximum likelihood methods were used to fit beta-binomial/Poisson ...
Variance component estimations for race performance of thoroughbred horses in Brazil by random regression model
(2008-09-01)
A total of 306,698 racing performance data recorded between 1992 and 2002 from 25495 Brazilian Thoroughbred horses was analyzed to estimate the variance components using the Random Regression Model (RRM) compared to the ...
Covariance functions for body weight from birth to maturity in Nellore cows
(Amer Soc Animal Science, 2010-03-01)
The objective of this study was to estimate (co)variance functions using random regression models on Legendre polynomials for the analysis of repeated measures of BW from birth to adult age. A total of 82,064 records from ...
Bayesian outlier analysis in binary regression
(Routledge Journals, Taylor & Francis Ltd, 2010-01-01)
We propose alternative approaches to analyze residuals in binary regression models based on random effect components. Our preferred model does not depend upon any tuning parameter, being completely automatic. Although the ...
Test-day or 305-day milk yield for genetic evaluation of Gir cattle
(Empresa Brasil Pesq Agropec, 2019-01-01)
The objective of this work was to compare genetic evaluations of milk yield in the Gir breed, in terms of breeding values and their accuracy, using a random regression model applied to test-day records or the traditional ...
Comparison of random regression models to estimate genetic parameters for milk production in Guzerat (Bos indicus) cows
(2013-01-24)
Random regression models have been widely used to estimate genetic parameters that influence milk production in Bos taurus breeds, and more recently in B. indicus breeds. With the aim of finding appropriate random regression ...