Results 31 to 40 of about 2,173,075 (279)

Estimativas de parâmetros genéticos para produção de leite e persistência da lactação em vacas Gir, aplicando modelos de regressão aleatória Estimates of genetic parameters for milk yield and persistency of lactation of Gyr cows, applying random regression models

Revista Brasileira de Zootecnia, 2008
Com o objetivo de estimar parâmetros genéticos para a produção de leite no dia do controle (PLDC), foram usadas as 2.440 primeiras lactações de vacas da raça Gir leiteira, com partos registrados entre 1990 e 2005.
Luis Gabriel González Herrera, Lenira El Faro, Lucia Galvão de Albuquerque, Tonhati Humberto, Carlos Henrique Cavallari Machado   +4 more
doaj   +1 more source

Asymptotic normality of kernel estimates in a regression model for random fields [PDF]

, 2008
We establish the asymptotic normality of the regression estimator in a fixed-design setting when the errors are given by a field of dependent random variables. The result applies to martingale-difference or strongly mixing random fields. On this basis, a
Machkouri, Mohamed El, Stoica, Radu
core   +5 more sources

Hierarchical Bayesian models for genotype × environment estimates in post-weaning gain of Hereford bovine via reaction norms Modelos hierárquicos bayesianos para estimativas de interação genótipo × ambiente em ganho pós-desmama de bovinos Hereford via normas de reação

Revista Brasileira de Zootecnia, 2011
It was evaluated statistical models with different assumptions to define the one that best describes the presence of genotype × environment interaction on adjusted post-weaning weight gain (PWG345) of Hereford cattle, through the study of reactions norms
Leandro Lunardini Cardoso, José Braccini Neto, Fernando Flores Cardoso, Jaime Araújo Cobuci, Igor de Oliveira Biassus, Júlio Otávio Jardim Barcellos   +5 more
doaj   +1 more source

Estimation of genetic parameters for milk yield using a random regression test-day model in first parity dairy cows under pasture-based systems of Los Ríos region in Chile

Austral Journal of Veterinary Sciences, 2020
In dairy cattle, genetic selection for milk yield was generally based on 305 days lactation records that were calculated from available monthly test-day milk yield records.
Héctor Uribe, Felipe Lembeye
doaj   +1 more source

Genomic and phenotypic selection indices for decreased birth weight, shortening fattening period, and regulating total weight gain in beef cattle [PDF]

Animal Bioscience
Objective This study aimed to develop genomic and phenotypic indices for beef cattle selection that afford progeny with reduced birth weight and fattening period.
Kenji Togashi, Atsushi Ogino, Toshio Watanabe, Masakazu Shinomiya, Masashi Kinukawa, Kazuhito Kurogi, Masanobu Nurimoto   +6 more
doaj   +1 more source

Models for evaluation of growth of performance tested bulls

Czech Journal of Animal Science, 2008
Before being used for insemination, young bulls of Czech Fleckvieh (CF) are tested for growth at performance-test stations. While at stations, the bulls are weighed monthly. Evaluation included 7 448 bulls with 82 676 records of weight measured from 6 to
J. Přibyl, H. Krejčová, J. Přibylova, I. Misztal, S. Tsuruta, N. Mielenz   +5 more
doaj   +1 more source

Exploring nonlinearity with random field regression [PDF]

Applied Economics Letters, 2007
Random field regression models provide an extremely flexible way to investigate nonlinearity in economic data. This paper introduces a new approach to interpreting such models, which may allow for improved inference about the possible parametric specification of nonlinearity.
Bond, D. (Derek), Harrison, Michael J., O'Brien, Edward J. (Edward Joseph)   +2 more
openaire   +3 more sources

Simultaneous estimation of daily weight and feed intake curves for growing pigs by random regression

Animal, 2012
In this study, random regression models were used to estimate covariance functions between feed intake and BW in boars from the two breeds: the Norwegian Landrace and the Norwegian Duroc.
M. Wetten, J. Ødegård, O. Vangen, Th.H.E. Meuwissen   +3 more
doaj   +1 more source

Clinical and Biological Features of Response in Resistant Neuroblastoma to 131I‐Metaiodobenzylguanidine Radiotherapy in the Anti‐GD2 Immunotherapy Era

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background 131I‐metaiodobenzylguanidine (131I‐MIBG) radiotherapy is a key treatment for relapsed and refractory (R/R) neuroblastoma (NB). Patients with R/R disease treated in the modern era are increasingly exposed to anti‐GD2 immunotherapy, which exerts selective pressure and may modify both tumor cell state and microenvironment.
Benjamin J. Lerman, Katherine K. Matthay, Fabienne Hollinger, Catriona Black, Ann A. Lazar, Miguel Pampaloni, Steven G. DuBois, Kieuhoa T. Vo   +7 more
wiley   +1 more source

Analysis of feed intake and energy balance of high-yielding first lactating Holstein cows with fixed and random regression models

Animal, 2009
At the dairy research farm Karkendamm, the individual roughage intake was measured since 1 September 2005 using a computerised scale system to estimate daily energy balances as the difference between energy intake and calculated energy requirements for ...
H. Hüttmann, E. Stamer, W. Junge, G. Thaller, E. Kalm   +4 more
doaj   +1 more source