Results 71 to 80 of about 26,736 (301)

Perspectives from agriculture: advances in livestock breeding - implications for aquaculture genetics [PDF]

, 2006
In this paper we present livestock breeding developments that could be taken into consideration in the genetic improvement of farmed aquaculture species, especially in freshwater fish.
Nguyen, N.H., Ponzoni, R.W.
core  

Nonparametric estimation of mean-squared prediction error in nested-error regression models

, 2005
Nested-error regression models are widely used for analyzing clustered data. For example, they are often applied to two-stage sample surveys, and in biology and econometrics.
Hall, Peter, Maiti, Tapabrata
core   +1 more source

Handling Out‐of‐Sample Areas to Estimate the Unemployment Rate at Local Labour Market Areas in Italy

International Statistical Review, EarlyView.
Summary Unemployment rate estimates for small areas are used to efficiently support the distribution of services and the allocation of resources, grants and funding. A Fay–Herriot type model is the most used tool to obtain these estimates. Under this approach out‐of‐sample areas require some synthetic estimates. As the geographical context is extremely
Roberto Benedetti, Federica Piersimoni, Monica Pratesi, Nicola Salvati, Thomas Suesse   +4 more
wiley   +1 more source

Estimation of inbreeding effect on conception in Czech Holstein

Czech Journal of Animal Science, 2019
The influence of calculated inbreeding coefficients on the conception of heifers and cows was analysed by a two-trait binary model for conceived/not conceived after each insemination on 677 234 Czech Holstein cows and heifers with 3 248 299 insemination ...
Michala Hofmannová, Josef Přibyl, Emil Krupa, Petr Pešek   +3 more
doaj   +1 more source

Genetic evaluation of fertility using direct and correlated traits [PDF]

, 2003
Poor fertility has become a major reason for involuntary culling of dairy cows in the United Kingdom. Calving interval (CI) and body condition score (BCS) are recorded, heritable, genetically correlated with each other, and could be used to extend the ...
Berry, Brotherstone, Brotherstone, Calo, Coffey, Collard, Dechow, Dematawewa, E. Wall, Evans, G. Banos, Groen, Groeneveld, Harrison, Hickman, J.A. Woolliams, Jones, Kadarmideen, M.P. Coffey, Mrode, Neumaier, Olori, Pryce, Pryce, Pryce, Pryce, Roman, Roxström, Roxström, Royal, Royal, S. Brotherstone, Veerkamp, Veerkamp   +33 more
core   +1 more source

Genomic Prediction Ability for Novel Profitability Traits Using Different Models in Nelore Cattle

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT The aim of this study was to assess the accuracy, bias and dispersion of genomic predictions for accumulated profitability (APF) and profit per kilogram of liveweight gain (PFT) in Nelore cattle using different prediction approaches. The dataset consisted of 3969 phenotypic records for each trait. The pedigree harboured information from 38,930
Letícia Silva Pereira, Cláudio Ulhôa Magnabosco, Guilherme Rosa, Nedenia Bonvino Stafuzza, Tiago Zanett Albertini, Minos Carvalho, Raysildo Barbosa Lobo, Elisa Peripolli, Eduardo da Costa Eifert, Fernando Baldi   +9 more
wiley   +1 more source

Comparison of random regression models, traditional animal model and with the inclusion of molecular markers in the estimation of genetic parameters in Colombian Holstein cattle

Semina: Ciências Agrárias, 2021
The use of molecular markers to identify desirable genes in animal production is known as marker-assisted selection. The traditional genetic evaluation model uses the BLUP methodology; when genetic markers are included in the evaluation model, the ...
Daniel Cardona-Cifuentes, Albeiro López-Herrera, Luis Gabriel González-Herrera, Mario Fernando Cerón-Muñoz, José Julián Echeverri-Zuluaga   +4 more
doaj   +1 more source

Efficient network-guided multi-locus association mapping with graph cuts [PDF]

, 2013
As an increasing number of genome-wide association studies reveal the limitations of attempting to explain phenotypic heritability by single genetic loci, there is growing interest for associating complex phenotypes with sets of genetic loci.
Azencott, Chloé-Agathe, Borgwardt, Karsten M., Grimm, Dominik, Kawahara, Yoshinobu, Sugiyama, Mahito   +4 more
core   +2 more sources

Single‐Step Genomic Predictions for Growth and Carcass Traits in Nordic Charolais and Hereford Cattle

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT In order to investigate the applicability and efficiency of genomic selection for growth and carcass traits in Nordic beef cattle, single‐step genomic BLUP (ssGBLUP) was applied in 4321 Charolais and 4532 Hereford animals with information on approximately 43,000 SNPs each.
Anahit Nazari‐Ghadikolaei, Freddy Fikse, Susanne Eriksson   +2 more
wiley   +1 more source

Genomic Prediction and Genome‐Wide Association Analysis of Heat Tolerance for Milk Yield in Buffaloes Using a Reaction Norm Model

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT The aim of this study was to evaluate the impact of incorporating genomic information on the estimation of genetic (co)variance components and the accuracy of breeding values for milk yield under varying thermal environments, and to identify SNPs associated with genes that play significant roles in heat tolerance.
Gabriela Stefani, Mário Luiz Santana, Lenira El Faro, Humberto Tonhati   +3 more
wiley   +1 more source