Search Results - "Ferraz, J B"
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EEF1A1 transcription cofactor gene polymorphism is associated with muscle gene expression and residual feed intake in Nelore cattle
Published in Mammalian genome (01-12-2022)“…Cis -acting effects of noncoding variants on gene expression and regulatory molecules constitute a significant factor for phenotypic variation in complex…”
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2
Visual body-scores selection and its influence on body size and ultrasound carcass traits in Nellore cattle
Published in Journal of animal science (01-12-2015)“…Genetic parameters, genetic trends, and genetic progress of carcass traits were estimated for 12,447 Nellore individuals from different Brazilian herds. The…”
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3
Pedigree analysis and inbreeding depression on growth traits in Brazilian Marchigiana and Bonsmara breeds
Published in Journal of animal science (2012)“…The study of population structure by pedigree analysis is useful to identify important circumstances that affect the genetic history of populations. The…”
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4
Additive genetic relationships between scrotal circumference, heifer pregnancy, and stayability in Nellore cattle
Published in Journal of animal science (01-12-2010)“…Scrotal circumference data from 47,605 Nellore young bulls, measured at around 18 mo of age (SC18), were analyzed simultaneously with 27,924 heifer pregnancy…”
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Genetic relationship between growth and reproductive traits in Nellore cattle
Published in Animal (Cambridge, England) (01-04-2012)“…The objective of this study was to evaluate the genetic relationship between postweaning weight gain (PWG), heifer pregnancy (HP), scrotal circumference (SC)…”
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Phenotypic plasticity of composite beef cattle performance using reaction norms model with unknown covariate
Published in Animal (Cambridge, England) (01-02-2013)“…The objective of the present study was to determine the presence of genotype by environment interaction (G × E) and to characterize the phenotypic plasticity…”
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7
Assessment of inbreeding depression in a Guzerat dairy herd: effects of individual increase in inbreeding coefficients on production and reproduction
Published in Journal of dairy science (01-10-2010)“…Influences of inbreeding on daily milk yield (DMY), age at first calving (AFC), and calving intervals (CI) were determined on a highly inbred zebu dairy…”
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8
POPREP: a generic report for population management
Published in Genetics and molecular research (01-01-2009)“…Genetic variation provides a basis upon which populations can be genetically improved. Management of animal genetic resources in order to minimize loss of…”
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9
Association of SNPs on CAPN1 and CAST genes with tenderness in Nellore cattle
Published in Genetics and molecular research (2010)“…We examined whether single-nucleotide polymorphisms (SNPs) in the calpain (CAPN) and calpastatin (CAST) genes, described from Bos primigenius taurus, are…”
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10
Study of stayability in Nellore cows using a threshold model
Published in Journal of animal science (01-07-2007)“…The objectives of the current study were to assess the feasibility of using stayability traits to improve fertility of Nellore cows and to examine the genetic…”
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11
Association of single nucleotide polymorphisms in the bovine leptin and leptin receptor genes with growth and ultrasound carcass traits in Nellore cattle
Published in Genetics and molecular research (01-01-2012)“…Given the important role of leptin in metabolism, we looked for a possible association of leptin and leptin receptor polymorphisms with carcass and growth…”
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12
Genetic evaluation of the probability of pregnancy at 14 months for Nellore heifers
Published in Journal of animal science (01-04-2002)“…To estimate the heritability for the probability that yearling heifers would become pregnant, we analyzed the records of 11,487 Nellore animals that…”
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13
Genomic study and Medical Subject Headings enrichment analysis of early pregnancy rate and antral follicle numbers in Nelore heifers
Published in Journal of animal science (01-11-2017)“…Zebu animals () are known to take longer to reach puberty compared with taurine animals (), limiting the supply of animals for harvest or breeding and…”
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14
Estimation of variances due to direct and maternal effects for growth traits of Nelore cattle
Published in Journal of animal science (01-11-1995)“…Estimates of (co)variance components and genetic parameters were obtained for birth, 205-d, and 365-d weight for Nelore cattle in Brazil, using single and…”
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15
Implications of SNP weighting on single‐step genomic predictions for different reference population sizes
Published in Journal of animal breeding and genetics (1986) (01-12-2017)“…Summary We investigated the importance of SNP weighting in populations with 2,000 to 25,000 genotyped animals. Populations were simulated with two effective…”
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16
Genetic relationships among traits related to reproduction and growth of Nelore females
Published in Theriogenology (15-09-2014)“…The objective of the study presented here was to analyze the genetic relationships among heifer pregnancy (HP), age at first calving (AFC), stayability (STAY),…”
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17
Two-trait random regression model to estimate the genetic association of scrotal circumference with female reproductive performance in Nelore cattle
Published in Theriogenology (01-06-2015)“…In an attempt to determine when scrotal circumference (SC) could be a reasonable indicator of female reproductive performance, a series of two-trait random…”
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Genetic parameters for postweaning traits in Braunvieh cattle
Published in Genetics and molecular research (01-01-2010)“…Genetic parameters for traits related to postweaning growth in Braunvieh cattle, reared under tropical and sub-tropical conditions in Brazil, were studied…”
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Genetic evaluation for latent variables derived from factor analysis in broilers
Published in British poultry science (02-01-2020)“…1. The aim of this study was to investigate the associations between several carcass, performance and meat quality traits in broilers through factor analysis…”
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Genetic associations among average annual productivity, growth traits, and stayability: a parallel between Nelore and composite beef cattle
Published in Journal of animal science (01-06-2013)“…This study was conducted to examine the relationship among average annual productivity of the cow (PRODAM), yearling weight (YW), postweaning BW gain (PWG),…”
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