[PDF][PDF] Size of beef cows: early ideas, new developments

J Arango, LD Van Vleck - Faculty Papers and Publications …, 2002 - digitalcommons.unl.edu
Optimum size for beef cattle is debated among researchers, cattle breeders and producers.
Cattle vary widely in body size but optimal size depends on the production system. Selection …

Genetic parameter estimates in Sabi sheep

O Matika, JB Van Wyk, GJ Erasmus… - Livestock Production …, 2003 - Elsevier
Genetic parameters for growth traits in Sabi sheep were estimated using asreml from data
records of 4123 lambs from 130 sires and 1131 dams collected between 1984 and 1994 …

Ontogeny of additive and maternal genetic effects: lessons from domestic mammals

AJ Wilson, D Réale - The American Naturalist, 2006 - journals.uchicago.edu
Evolution of size and growth depends on heritable variation arising from additive and
maternal genetic effects. Levels of heritable (and nonheritable) variation might change over …

[HTML][HTML] Estimates of genetic parameters for carcass, growth and reproductive traits in Nellore cattle

SL Caetano, RP Savegnago, AA Boligon, SB Ramos… - Livestock Science, 2013 - Elsevier
The objective of this study was to estimate genetic parameters for female mature weight
(FMW), age at first calving (AFC), weight gain from birth to 120 days (WG_B_120), from 210 …

Comparison of non-linear growth models to describe the growth curve in West African Dwarf sheep

AB Gbangboche, R Glele-Kakai, S Salifou… - Animal, 2008 - Elsevier
The objectives of this study were to compare the goodness of fit of four non-linear growth
models, ie Brody, Gompertz, Logistic and Von Bertalanffy, in West African Dwarf (WAD) …

Genetic associations between carcass traits measured by real-time ultrasound and scrotal circumference and growth traits in Nelore cattle

MJ Yokoo, RB Lôbo, FRC Araujo… - Journal of Animal …, 2010 - academic.oup.com
The aim of the present study was to evaluate the genetic correlations among real-time
ultrasound carcass, BW, and scrotal circumference (SC) traits in Nelore cattle. Carcass traits …

[HTML][HTML] Genetic parameters and relationships of heifer pregnancy and age at first calving with weight gain, yearling and mature weight in Nelore cattle

AA Boligon, LG Albuquerque - Livestock Science, 2011 - Elsevier
The objectives of the current study were to investigate the additive genetic associations
between heifer pregnancy at 16months of age (HP16) and age at first calving (AFC) with …

Genetic and environmental parameters for traits derived from the Brody growth curve and their relationships with weaning weight in Angus cattle

M Kaps, WO Herring… - Journal of Animal …, 2000 - academic.oup.com
Direct and maternal genetic and environmental variances and covariances were estimated
for weaning weight and growth and maturing traits derived from the Brody growth curve …

[HTML][HTML] Herdabilidades e correlações entre pesos do nascimento à idade adulta em rebanhos da raça Nelore

AA Boligon, LG Albuquerque… - Revista Brasileira de …, 2009 - SciELO Brasil
Dados de 19.458 animais da raça Nelore, nascidos entre 1975 e 2002 e pertencentes a oito
fazendas participantes do Programa de Melhoramento Genético da Raça Nelore (PMGRN) …

Genetic correlations between mature cow weight and productive and reproductive traits in Nellore cattle

IC Regatieri, AA Boligon, F Baldi, LG Albuquerque - 2012 - repositorio.unesp.br
We investigated genetic associations between mature cow weight (MW) and weaning
weight (WW), yearling weight (YW), weight gain from birth to weaning (GBW), weight gain …