Buscar
Mostrando ítems 31-40 de 1061
Quantitative genetic variation for resistance to the parasite Ichthyophthirius multifiliis in the Neotropical fish tambaqui (Colossoma macropomum)
(2020-07-01)
Tambaqui (Colossoma macropomum) is the main native fish produced in continental aquaculture from South America. However, its production has been negatively affected by significant economic losses due to frequent outbreaks ...
Genetic parameters for pre-weaning traits in Braunvieh cattle
(FUNPEC-EDITORA, 2009)
The objective of this study was to estimate genetic parameters for pre-weaning traits of Braunvieh cattle raised under tropical conditions in Brazil. The weight and weight gain parameters were birth weight (BW, N = 9955), ...
Variation and heritability of aristal morphology in a natural population of Drosophila mediopunctata
(Hereditas-distributionLandskronaSuécia, 1998)
Genetic parameters for body weight in meat quail
(Oxford Univ Press, 2015-02-01)
The aim of this study was to estimate genetic parameters for BW in meat quail at different ages. A total of 24,382 weight records from 3,652 quail, born between 2009 and 2011, were evaluated. Weekly BW was measured from ...
Single-step genomic evaluation improves accuracy of breeding value predictions for resistance to infectious pancreatic necrosis virus in rainbow trout
(2018-01-01)
The aim of this study was to compare the accuracy of breeding values (EBVs) predicted using the traditional pedigree based Best Linear Unbiased Prediction (PBLUP) and the single-step genomic Best Linear Unbiased Prediction ...
Genetic parameters in female reproductive traits of Nile tilapia (Oreochromis niloticus)
(2017-01-01)
Genetic parameters for reproductive traits in female Nile tilapia were estimated in this study using Bayesian inference method. The data set presented information from 451 Nile tilapia females that were evaluated at two ...
Genetic correlations and heritability estimates of reproductive traits of Nellore bulls
(ARQUIVO BRASILEIRO MEDICINA VETERINARIA ZOOTECNIABELO HORIZONTE, 2012)
Estimates of phenotypic, genetics and residual variances for reproductive traits in 5903 Nellore bulls were obtained. The experimental model used was multiple trait derivative-free restricted maximum likelihood. The values ...
Size and shape heritability in natural populations of Drosophila mediopunctata: temporal and microgeographical variation
(Kluwer Academic PublDordrechtHolanda, 1999)
Repeatability and heritability of response to superovulation in Holstein cows
(1999-04-15)
The objective of this study was to estimate the relative effects of genetic and phenotypic factors on the efficacy and efficiency of superovulation for Holstein-Friesian cows reared in Brazil. A database, established by ...
Geometric estimates of heritability in biological shape
(Soc Study EvolutionLawrenceEUA, 2002)