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Now showing items 91-97 of 97
Efeitos genéticos e não-genéticos sobre o intervalo de parto em fêmeas suínas no Sudeste do Brasil
(Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2009-02-01) [Artigo]
The effect of environmental and genetic effects on the farrowing interval in Dalland (C-40) sows in the Southeast of Brazil was studied. Data consisting of 1,013 farrowing intervals recorded in two herds were analyzed, ...
Phenotypic and genetic parameters compared during repeated measures of longissimus muscle area and subcutaneous fat thickness in Nelore cattle
(Genetics and Molecular Research, 2011-01-01) [Artigo]
Real-time ultrasound is currently used for in vivo carcass evaluation of beef cattle. We estimated heritability and repeatability coefficients for ultrasound-measured carcass traits in Nelore cattle. We measured longissimus ...
Genetic evaluation using multi-trait and random regression models in Simmental beef cattle
(Genetics and Molecular Research, 2013-07-24) [Artigo]
The Brazilian Association of Simmental and Simbrasil Cattle Farmers provided 29,510 records from 10,659 Simmental beef cattle; these were used to estimate (co)variance components and genetic parameters for weights in the ...
Genetic association of productive and reproductive traits with stayability in Nellore cattle: analysis using Bayesian models
(Genetics And Molecular Research, 2015-01-01) [Artigo]
We evaluated the genetic association of growth traits [weight adjusted to 205 days of age (W205), 365 days of age (W365), and 550 days of age (W550); weight gain between 205 days of age and 365 days of age (WG1) and between ...
Genetic Parameters for Racing Performance of Thoroughbred Horses Using Bayesian Linear and Thurstonian Models
(Journal Of Equine Veterinary Science, 2016-07-01) [Artigo]
The objective of this study was to estimate genetic parameters for rank in Thoroughbred horses using a Bayesian linear model (BLM) and a Thurstonian model (TM) to provide data that contribute to the selection and consequent ...
Genetic relationship among reproductive traits in Nellore cattle
(Animal, 2015-05-01) [Artigo]
In order to achieve improvements in production efficiency in livestock, herds of high sexual precocity and good fertility are needed. These traits increase the availability of animals in herd, either for sale or selection, ...
Falha na primeira mamada em bezerros Guzerá: fatores predisponentes e parâmetros genéticos
(Revista Brasileira de Zootecnia, 2008-06-01) [Artigo]
Em decorrência da elevada ocorrência (18%) de bezerros Guzerá que não mamaram por conta própria em suas mães (falha na primeira mamada), foram avaliados os fatores associados a estas falhas, sua influência na mortalidade ...