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Article
Open AccessAn autosomal recessive variant in PYGM causes myophosphorylase deficiency in Red Angus composite cattle
Between 2020 and 2022, eight calves in a Nebraska herd (composite Simmental, Red Angus, Gelbvieh) displayed exercise intolerance during forced activity. In some cases, the calves collapsed and did not recover....
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Article
Open AccessDNA methylation profile in beef cattle is influenced by additive genetics and age
DNA methylation (DNAm) has been considered a promising indicator of biological age in mammals and could be useful to increase the accuracy of phenotypic prediction in livestock. The objectives of this study we...
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Article
Open AccessLongitudinal assessment of the bovine ocular bacterial community dynamics in calves
Infectious Bovine Keratoconjunctivitis (IBK), commonly known as pinkeye, is one of the most significant diseases of beef cattle. As such, IBK costs the US beef industry at least 150 million annually. However, ...
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Article
Open AccessInfluence of host genetics in sha** the rumen bacterial community in beef cattle
In light of recent host-microbial association studies, a consensus is evolving that species composition of the gastrointestinal microbiota is a polygenic trait governed by interactions between host genetic fac...
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Article
Open AccessLinkage disequilibrium in Brazilian Santa Inês breed, Ovis aries
For genomic selection to be successful, there must be sufficient linkage disequilibrium between the markers and the causal mutations. The objectives of this study were to evaluate the extent of LD in ovine usi...
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Article
Open AccessGenome-wide association study for feed efficiency and growth traits in U.S. beef cattle
Single nucleotide polymorphism (SNP) arrays for domestic cattle have catalyzed the identification of genetic markers associated with complex traits for inclusion in modern breeding and selection programs. Usin...
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Article
Open AccessQTLs associated with dry matter intake, metabolic mid-test weight, growth and feed efficiency have little overlap across 4 beef cattle studies
The identification of genetic markers associated with complex traits that are expensive to record such as feed intake or feed efficiency would allow these traits to be included in selection programs. To identi...
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Article
Open AccessComparison of molecular breeding values based on within- and across-breed training in beef cattle
Although the efficacy of genomic predictors based on within-breed training looks promising, it is necessary to develop and evaluate across-breed predictors for the technology to be fully applied in the beef in...
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Article
A simulation study for the analysis of uncertain binary responses: Application to first insemination success in beef cattle
A simulation was carried out to investigate the methods of analyzing uncertain binary responses for success or failure at first insemination. A linear mixed model that included, herd, year, and month of mating...
