Results 21 to 30 of about 816,699 (265)

Test-day or 305-day milk yield for genetic evaluation of Gir cattle [PDF]

Pesquisa Agropecuária Brasileira, 2019
: 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 model (TM) applied to estimates
Rodrigo Junqueira Pereira, Denise Rocha Ayres, Mário Luiz Santana Junior, Lenira El Faro, Aníbal Eugênio Vercesi Filho, Lucia Galvão de Albuquerque   +5 more
doaj   +1 more source

Randomized Regression In Differentiators

, 1998
Publication in the conference proceedings of EUSIPCO, Rhodes, Greece ...
Sari Siren, Pauli Kuosmanen
openaire   +2 more sources

Regression-Enhanced Random Forests

CoRR, 2019
Random forest (RF) methodology is one of the most popular machine learning techniques for prediction problems. In this article, we discuss some cases where random forests may suffer and propose a novel generalized RF method, namely regression-enhanced random forests (RERFs), that can improve on RFs by borrowing the strength of penalized parametric ...
Haozhe Zhang, Dan Nettleton, Zhengyuan Zhu   +2 more
openaire   +3 more sources

Genotype × environment interaction in milk traits of Guzerá cattle using reaction norm models [PDF]

Revista Brasileira de Zootecnia
This study aimed to evaluate genotype × environment (G×E) interactions in Guzerá breed animals for 305-day first-lactation cumulative yields (kg) of milk (MY305), fat (FY305), and protein (PY305). We used 6823 records of MY305, 2466 records of FY305, and
Tainara Luana da Silva Soares, Maria Gabriela Campolina Diniz Peixoto, Eula Regina Carrara, Delvan Alves da Silva, Fernanda Larissa Cesar Santos, Frank Angelo Tomita Bruneli, Renata Veroneze, Paulo Sávio Lopes   +7 more
doaj   +1 more source

Reaction norms models in the adjusted weight at 550 days of age for Polled Nellore cattle in Northeast Brazil

Revista Brasileira de Zootecnia, 2014
The objective of this study was to evaluate the genotype-environment interaction (GEI) in the body weight adjusted to 550 days of age (W550) of Polled Nellore cattle raised in Northeastern Brazil using reaction norms (RN) models.
Diego Pagung Ambrosini, Paulo Luiz Souza Carneiro, José Braccini Neto, Raimundo Martins Filho, Rosimira dos Santos Amaral, Fernando Flores Cardoso, Carlos Henrique Mendes Malhado   +6 more
doaj   +1 more source

Estimação de parâmetros genéticos utilizando-se a produção de leite no dia do controle em primeiras lactações de vacas da raça Jersey Estimation of genetic parameters for test day milk yield of first lactation Jersey cows using repeatability and random regression models

Revista Brasileira de Zootecnia, 2006
Registros da produção de leite de 3.531 controles de 620 primíparas da raça Jersey foram utilizados para a estimação dos componentes de covariância e dos parâmetros genéticos para a produção de leite por meio dos modelos de repetibilidade e de regressão ...
Nelson José Laurino Dionello, Carlos Alberto Soares da Silva, Claudio Napolis Costa, Jaime Araújo Cobuci   +3 more
doaj   +1 more source

Random kernel k-nearest neighbors regression

Frontiers in Big Data
The k-nearest neighbors (KNN) regression method, known for its nonparametric nature, is highly valued for its simplicity and its effectiveness in handling complex structured data, particularly in big data contexts.
Patchanok Srisuradetchai, Korn Suksrikran   +1 more
doaj   +1 more source

Analyses of growth curves of Nellore cattle by Bayesian method via Gibbs sampling

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2003
Growth curves of Nellore cattle were analyzed using body weights measured at ages ranging from 1 day (birth weight) to 733 days. Traits considered were birth weight, 10 to 110 days weight, 102 to 202 days weight, 193 to 293 days weight, 283 to 383 days ...
P.R.C. Nobre, P.S. Lopes, R.A. Torres, L.O.C. Silva, A.J. Regazzi, R.A.A. Torres Júnior, I. Misztal   +6 more
doaj   +1 more source

Genetic growth potential characterization in the Japanese quail: a meta-analysis

Animal, 2020
The description of the growth of the Japanese quails is necessary to characterize the genetic potential of these birds raised in different countries. Thus, the aim of this study was to describe the genetic potential of Japanese quails by conducting a ...
L.C. Carvalho, H.S. Nogueira, A.R.T. Minussi, M.B. Lima, D.P. Munari, N.J. Peruzzi, E.P. Silva   +6 more
doaj   +1 more source

Multiple trait model combining random regressions for daily feed intake with single measured performance traits of growing pigs

Genetics Selection Evolution, 2002
A random regression model for daily feed intake and a conventional multiple trait animal model for the four traits average daily gain on test (ADG), feed conversion ratio (FCR), carcass lean content and meat quality index were combined to analyse data ...
Künzi Niklaus, Labroue Florence, Hofer Andreas, Schnyder Urs   +3 more
doaj   +1 more source