Journal of Animal Breeding and Genetics
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Early growth performance of Bos taurus × Bos indicus cattle crosses in Ethiopia: estimation of individual crossbreeding effects
Journal of Animal Breeding and Genetics - Tập 120 Số 4 - Trang 245-257 - 2003
SummaryIn an effort to estimate breed differences, heterotic and recombination
effects, a total of 4957 birth weight (BWT), 4245 weaning weight (WWT) and 3330
yearling weight (YWT) records collected from 38 crossbred and three purebred
genotypes generated from crossing Friesian (F), Jersey (J) and Simmental (S)
with the Boran (Bo), Barca (Ba) and Horro (Ho) (Bos indicus) breeds in Ethiopia
were us...
Early growth performance of Bos taurus x Bos indicus cattle crosses in Ethiopia: Evaluation of different crossbreeding models
Journal of Animal Breeding and Genetics - Tập 120 Số 1 - Trang 39-50 - 2003
SummaryFive genetic models were evaluated for goodness‐of‐fit and estimation of
crossbreeding parameters using 41 genotypes produced from crossing three Bos
taurus (Friesian, Jersey and Simmental) with three Bos indicus (Boran, Barca and
Horro) breeds. The traits used for testing of the models were birth weight,
weaning weight, pre‐weaning‐average daily gain and yearling weight. These models
were:...
Multi‐breed genetic evaluation in a Gelbvieh population
Journal of Animal Breeding and Genetics - Tập 124 Số 5 - Trang 286-295 - 2007
SummaryA multi‐breed model was presented for the genetic evaluation of growth
traits in beef cattle. In addition to the fixed effects, random direct and
maternal genetic effects, and random maternal permanent environmental effects
are considered; the model also fits direct and maternal heterosis and direct and
maternal breed‐of‐founder (BOF) × generation group effects using a Bayesian
approach tha...
Reliable computing in estimation of variance components
Journal of Animal Breeding and Genetics - Tập 125 Số 6 - Trang 363-370 - 2008
SummaryThe purpose of this study is to present guidelines in selection of
statistical and computing algorithms for variance components estimation when
computing involves software packages. For this purpose two major methods are to
be considered: residual maximal likelihood (REML) and Bayesian via Gibbs
sampling. Expectation‐Maximization (EM) REML is regarded as a very stable
algorithm that is able...
Analysis of pedigree and conformation data to explain genetic variability of the horse breed Franches‐Montagnes
Journal of Animal Breeding and Genetics - Tập 123 Số 2 - Trang 114-121 - 2006
SummaryFranches‐Montagnes is the only native horse breed in Switzerland,
therefore special efforts should be made for ensuring its survival. The
objectives of this study were to characterize the structure of this population
as well as genetic variability with pedigree data, conformation traits and
molecular markers. Studies were focused to clarify if this population is
composed of a heavy‐ and a l...
Opportunities for investment into small ruminant breeding programmes in Brazil
Journal of Animal Breeding and Genetics - Tập 136 Số 5 - Trang 313-318 - 2019
AbstractThe social contribution of goat and sheep industries is very important
to many Brazilian families mainly in semi‐arid regions of the country. However,
the productive chains of these two species in Brazil are unorganized and
ultimately informal. On the other hand, there is potential for growth and
development to which an upscaling of breeding programmes will be essential.
Historically, many...
Genetic background of claw disorders in the course of lactation and their relationships with type traits
Journal of Animal Breeding and Genetics - Tập 130 Số 6 - Trang 435-444 - 2013
SummaryRandom regression threshold animal models were applied to binary
longitudinal claw disorder data for studying genetic parameters of all claw
disorders (ACD), as well as to claw disorders divided into different categories:
non‐purulent claw disorders (NPCD), purulent claw disorders (PCD), dermatitis
digitalis (DD), sole ulcer (SU), phlegmona (PH), laminitis (LAM) and
interdigital hyperplasia...
Analysis of FMO genes and off flavour in pork
Journal of Animal Breeding and Genetics - Tập 124 Số 1 - Trang 35-38 - 2007
SummaryOff flavours in pork sometimes produce tastes such as sourness, fishy,
metallic or other non‐typical flavours and are often caused by low pH. Loss of
function mutations in flavin containing mono‐oxygenase 3 (FMO3) are known to be
associated with a fishy off flavour in both chicken eggs and cow's milk and a
similar autosomal recessive disorder is present in humans resulting in a fishy
odour....
An improved protocol for the production of AFLPTM markers in complex genomes by means of capillary electrophoresis
Journal of Animal Breeding and Genetics - Tập 122 Số 1 - Trang 62-68 - 2005
SummaryThe amplified fragment‐length polymorphism (AFLP) technology is a
recently introduced method to investigate genomes of different complexity, from
microbial to higher organisms. It is applied to purposes as diverse as
identification of species, strain and varieties, investigation of genetic
diversity within and between populations, simple and complex trait mapping, and
construction of linkag...
Quantitative genetics and evolution: Is our understanding of genetics sufficient to explain evolution?
Journal of Animal Breeding and Genetics - Tập 110 Số 1-6 - Trang 161-170 - 1993
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