Genetics of reproductive performance in seasonal calving beef cows and its association with performance traits

DP Berry, RD Evans - Journal of Animal Science, 2014 - academic.oup.com
Due primarily to a lack of phenotypic data, little research has been undertaken on the
genetics of reproductive performance in beef cattle. The objective of this study was to …

Estimates of genetic parameters for growth, reproductive, and carcass traits in Nelore cattle using the single step genomic BLUP procedure

S Kluska, BF Olivieri, M Bonamy, HLJ Chiaia… - Livestock Science, 2018 - Elsevier
This study was carried out to estimate the heritability and genetic correlations between
adjusted weights at 210 (W210) and 450 (W450) days of age, scrotal circumference …

Genomic regions associated with feed efficiency indicator traits in an experimental Nellore cattle population

BF Olivieri, MEZ Mercadante, JNSG Cyrillo… - PLoS …, 2016 - journals.plos.org
The objective of this study was to identify genomic regions and metabolic pathways
associated with dry matter intake, average daily gain, feed efficiency and residual feed …

Phenotypic and genetic correlations of feed efficiency traits with growth and carcass traits in Nellore cattle selected for postweaning weight

TM Ceacero, MEZ Mercadante, JNSG Cyrillo… - PLoS …, 2016 - journals.plos.org
This study evaluated phenotypic (rph) and genetic correlations (rg) between 8 feed
efficiency traits and other traits of economic interest including weight at selection (WS), loin …

Assessing different metrics of pedigree and genomic inbreeding and inbreeding effect on growth, fertility, and feed efficiency traits in a closed-herd Nellore cattle …

RD Bem, LF Benfica, DA Silva, ER Carrara, LF Brito… - BMC genomics, 2024 - Springer
Background The selection of individuals based on their predicted breeding values and
mating of related individuals can increase the proportion of identical-by-descent alleles. In …

Genome-wide association study of reproductive traits in Nellore heifers using Bayesian inference

RB Costa, GMF Camargo, IDPS Diaz, N Irano… - Genetics Selection …, 2015 - Springer
Background An important goal of Zebu breeding programs is to improve reproductive
performance. A major problem faced with the genetic improvement of reproductive traits is …

Estimates of genetic correlations between days to calving and reproductive and weight traits in Nelore cattle

S Forni, LG Albuquerque - Journal of animal science, 2005 - academic.oup.com
Data comprising 53,181 calving records were analyzed to estimate the genetic correlation
between days to calving (DC), and days to first calving (DFC), and the following traits: scrotal …

Genetic relationships among traits related to reproduction and growth of Nelore females

JP Eler, AB Bignardi, JBS Ferraz, ML Santana Jr - Theriogenology, 2014 - Elsevier
The objective of the study presented here was to analyze the genetic relationships among
heifer pregnancy (HP), age at first calving (AFC), stayability (STAY), average annual …

Meta-analysis of genetic-parameter estimates for reproduction, growth and carcass traits in Nellore cattle by using a random-effects model

HR de Oliveira, HT Ventura, EV Costa… - Animal Production …, 2017 - CSIRO Publishing
Meta-analysis based on a random-effects model is used to summarise and overcome the
variability between divergent parameter estimates. We proposed a meta-analysis of …

Relationship between residual feed intake and enteric methane emission in Nellore cattle

MEZ Mercadante, APM Caliman… - Revista Brasileira de …, 2015 - SciELO Brasil
Feed intake and average daily gain (ADG) in Nellore cattle were determined to calculate
residual feed intake in two performance tests: first during the growth phase (RFIgrowth) and …