Simple Summary Cow–calf production is the foundation of the US beef industry. However,
infertility and sub-fertility limit its sustainability. In this review, we discuss the progress made …

ABSTRACTS Genome-wide association studies are a powerful tool to identify genomic
regions and variants associated with phenotypes. However, only limited mutual confirmation …

Background Genetic progress for fertility and reproduction traits in dairy cattle has been
limited due to the low heritability of most indicator traits. Moreover, most of the quantitative …

Fertility traits measured early in life define the reproductive potential of heifers. Knowledge of
genetics and biology can help devise genomic selection methods to improve heifer fertility …

Background Crossbreeding is an important way to improve production beef cattle
performance. Pinan cattle is a new hybrid cattle obtained from crossing Piedmontese bulls …

Background In recent years, there has been increased interest in the study of the molecular
processes that affect semen traits. In this study, our aim was to identify quantitative trait loci …

In Canada, reproductive disorders known to affect the profitability of dairy cattle herds have
been recorded by producers on a voluntary basis since 2007. Previous studies have shown …

Simple Summary Reproduction plays a pivotal role in dairy cow farming. Good reproductive
performance in cows can decrease the elimination rate of cows, increase the success rate of …

Genomic selection has proven effective for advancing genetic gain for key profit traits in
dairy cattle production systems. However, its impact to-date on genetic improvement …

Simple Summary Due to the complexity of sperm cell reproduction and maturation, the
genetic structure of semen traits remains largely unknown. In our study, we used weighted …