Results 31 to 40 of about 73,275 (250)
Post-weaning performance and carcass characteristics of steer progency from different suckler cow breed types [PDF]
, 2005 peer-reviewedIn two experiments a total of 44 steer progeny of spring-calving Charolais (C) and Hereford × Friesian (HF) suckler cows and C sires were slaughtered at approximately 2 years of age.
Drennan, Michael J +2 more
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Protocol for a Scoping/Systematic Review: Scoping Review of Vaccination for the Prevention of Calf Scours in Cow-Calf Operations [PDF]
, 2020 Background: The use of antimicrobials in the livestock industry has been a topic of increasing concern in the last few years. Calf scours is one of the main causes of mortality among calves younger than 1 month and affects the development of the animal,
Breitenbuecher, Jefferson GC +4 more
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Climate factors drive the local adaptation of Old World cattle
iMeta, EarlyView.Climate adaptation genomics of cattle. We comparatively analyzed genomic data from 85 Old World cattle breeds/populations of Eurasia and Africa to identify genetic factors associated with climate factors. Environmental genome‐wide association studies revealed 3165 single‐nucleotide polymorphisms (SNPs) with strong correlations between climate factors ...
Luyang Sun +32 more
wiley +1 more source
Accuracy of genome-wide imputation in Braford and Hereford beef cattle
BMC Genetics, 2014 BackgroundStrategies for imputing genotypes from the Illumina-Bovine3K, Illumina-BovineLD (6K), BeefLD-GGP (8K), a non-commercial-15K and IndicusLD-GGP (20K) to either Illumina-BovineSNP50 (50K) or to Illumina-BovineHD (777K) SNP panel, as well as for ...
M. L. Piccoli +5 more
semanticscholar +1 more source
MITOCHONDRIAL DNA POLYMORPHISMS AND FERTILITY IN BEEF CATTLE [PDF]
, 2002 Two regions of mitochondrial DNA, D-loop and ND-5 were characterized using polymerase chain reaction – restriction fragment length polymorphism (PCR-RFLP) involving 422 beef cattle of Hereford and composite breeds from Wokalup’s ...
., Sutarno +3 more
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A century of theories of balancing selection
Biological Reviews, EarlyView.ABSTRACT Traits that affect organismal fitness are often highly genetically variable. This genetic variation is vital for populations to adapt to their environments, but it is also surprising given that nature – after all – ‘selects’ the best genotypes at the expense of those that fall short.
Filip Ruzicka +10 more
wiley +1 more source
EVALUATION OF CROSSBRED CALF AND COW TYPES; SUBJECTIVE TRAITS [PDF]
Journal of Central European Agriculture, 2006 Data in this experiment consisted of birth weight, calving score, thickness and grade records of 600 crossbred calves. Angus, Brangus, and Gelbvieh sires were mated to purebred Hereford cows.
Akin PALA +2 more
doaj +2 more sources
Vulnerable Patient Outreach Program (VPOP)
Journal of Regional Medical Campuses, 2021 The COVID-19 pandemic has significantly disrupted many traditional patient care delivery models. To help meet patient needs, the Penn State Health Department of Family and Community Medicine started a medical student-run Vulnerable Patient Outreach ...
Thomas Kellner +2 more
doaj +1 more source
Genetic aspects of calving, growth, and carcass traits in beef cattle [PDF]
, 2003 The aim of this thesis was to learn more about the genetic background of calving, growth and carcass traits of beef cattle breeds in Sweden, and to assess the possibility of including calving traits and commercial carcass traits in the genetic evaluation.
Eriksson, Susanne
core
Gonadulin and Insulin‐Like Growth Factor Involved in Rhipicephalus microplus Reproduction
Entomologia Experimentalis et Applicata, EarlyView.Insulin‐like growth factor (IGF2) in ovaries of Rhipicephalus microplus partially engorged females. Ovaries from females at different feeding stages were used to detect IGF2. ABSTRACT Gonadulin and insulin‐like growth factor (IGF) are neuropeptides synthesized by the central nervous system (CNS) of arthropods.
Jéssica Waldman +8 more
wiley +1 more source