Results 31 to 40 of about 3,837,457 (288)

Genomic-based genetic parameters for resilience across lactations in North American Holstein cattle based on variability in daily milk yield records

Journal of Dairy Science, 2023
: Considering the increasing challenges imposed by climate change and the need to improve animal welfare, breeding more resilient animals capable of better coping with environmental disturbances is of paramount importance. In dairy cattle, resilience can
Shi-Yi Chen, Jacquelyn P. Boerman, Leonardo S. Gloria, Victor B. Pedrosa, Jarrod Doucette, Luiz F. Brito   +5 more
doaj   +1 more source

Genetic and phenotypic parameter estimates for body weights and egg production in Horro chicken of Ethiopia [PDF]

, 2010
A breeding program has been established in 2008 to improve productivity of Horro chicken, an indigenous population in the western highlands of Ethiopia. The pedigree descended from 26 sires and 260 dams.
van der Waaij, E.H., Waaij, E.H., van der, E. H. vander Waaij, Johan A. M. van Arendonk, Nigussie Dana, Dana, N., Arendonk, J.A.M., van, van Arendonk, J.A.M.   +7 more
core   +1 more source

Estimativa de parâmetros genéticos para características de carcaça em um rebanho de suínos Large White Estimate of genetic parameters for carcass traits in Large White swine herd

Revista Brasileira de Zootecnia, 2004
Com o objetivo de estimar parâmetros genéticos para características de carcaça de suínos, foram utilizados dados de rendimento de carcaça (RC), comprimentos de carcaça pelo método Brasileiro (CCMB) e pelo método americano (CCMA), espessuras de toucinho ...
Gastón Andrés Fernandez Giné, Rilke Tadeu Fonseca de Freitas, Antonio Ilson Gomes de Oliveira, Idalmo Garcia Pereira, Tarcísio de Moraes Gonçalves   +4 more
doaj   +1 more source

A survey of genetic improvement search spaces [PDF]

, 2019
Genetic Improvement (GI) uses automated search to improve existing software. Most GI work has focused on empirical studies that successfully apply GI to improve software's running time, fix bugs, add new features, etc. There has been little research into
Alexander, B, Petke, Justyna, Alexander, Brad, Petke, J, White, DR, Wagner, M., Barr, ET, White, David R, Wagner, M, Barr, Earl T, Alexander, B., White, D.R., Petke, J., Barr, E.T., Brownlee, AEI, Brownlee, Alexander E I, Wagner, Markus, Brownlee, A.E.I.   +17 more
core   +1 more source

The Complex Parameter Landscape of the Compact Genetic Algorithm [PDF]

Algorithmica, 2020
AbstractThe compact Genetic Algorithm (cGA) evolves a probability distribution favoring optimal solutions in the underlying search space by repeatedly sampling from the distribution and updating it according to promising samples. We study the intricate dynamics of the cGA on the test functionOneMax, and how its performance depends on the hypothetical ...
Johannes Lengler, Dirk Sudholt, Carsten Witt   +2 more
openaire   +2 more sources

Inbreeding on productive and reproductive traits of dairy Gyr cattle

Revista Brasileira de Zootecnia, 2015
The objective of this study was to estimate genetic parameters and to evaluate the effects of inbreeding on productive and reproductive traits of dairy Gyr cattle.
João Cruz Reis Filho, Rui da Silva Verneque, Robledo de Almeida Torres, Paulo Sávio Lopes, Fernanda Santos Silva Raidan, Fabio Luiz Buranelo Toral   +5 more
doaj   +1 more source

Recombination and Self-Adaptation in Multi-objective Genetic Algorithms [PDF]

, 2004
This paper investigates the influence of recombination and self-adaptation in real-encoded Multi-Objective Genetic Algorithms (MOGAs). NSGA-II and SPEA2 are used as example to characterize the efficiency of MOGAs in relation to various recombination ...
Régnier, Jérémi, Sareni, Bruno, Bruno Sareni, Roboam, Xavier, Xavier Roboam, Jérémi Regnier   +5 more
core   +1 more source

Effect of heat stress on semen characteristics and genetics in Thai native grandparent roosters

Poultry Science
: Grandparent roosters are crucial in poultry breeding programs and significantly influence future bird generations' genetic makeup and performance. However, these roosters face considerable challenges from heat stress, which can adversely affect their ...
Jiraporn Juiputta, Thirawat Koedkanmark, Vibuntita Chankitisakul, Wuttigrai Boonkum   +3 more
doaj   +1 more source

Estimation of genetic parameters and comparison of random regression animal and sire models of production traits in the first three lactations of Iranian Holsteins [PDF]

Biotechnology in Animal Husbandry, 2014
This study was conducted to compare of random regression (RR) animal and sire models for estimation of the genetic parameters for production traits of Iranian Holstein dairy cows.
Mohammadi A., Alijani S.
doaj  

Heterogeneidade de variância residual em modelos de regressão aleatória na descrição do crescimento de codornas de corte Heterogeneity of residual variance in random regression models in the description of meat quail growth

Revista Brasileira de Zootecnia, 2011
Para comparar a influência da heterogeneidade da variância residual nos parâmetros genéticos estimados para a curva de crescimento de codornas de corte, foram utilizados dados provenientes de 26.835 e 27.447 observações, de 3.909 e 4.040 codornas de ...
Cristina Moreira Bonafé, Robledo de Almeida Torres, Rafael Bastos Teixeira, Felipe Gomes da Silva, Mariele Freitas Sousa, Carla Daniela Suguimoto Leite, Luciano Pinheiro da Silva, Giovani da Costa Caetano   +7 more
doaj   +1 more source