ABSTRACT Brangus [3/8 Brahman (Bos indicus)× 5/8 Angus (Bos taurus); n≈ 800] heifers
from 67 sires were used to estimate heritability and conduct a genome-wide association …

Multitrait meta-analyses are a strategy to produce more accurate genome-wide association
studies, especially for complex phenotypes. We carried out a meta-analysis study for traits …

The ability of livestock to reproduce efficiently is critical to the sustainability of animal
agriculture. Antral follicle count (AFC) and reproductive tract scores (RTS) can be used to …

Infertility and subfertility negatively impact the economics and reproductive performance of
cattle. Of note, significant pregnancy loss occurs in cattle during the first month of pregnancy …

Age at first calving (AFC) plays an important role in the economic efficiency of beef cattle
production. This trait can be affected by a combination of genetic and environmental factors …

Background Subfertility is one challenge facing the dairy industry as the average Holstein
heifer conception rate (HCR), the proportion of heifers that conceive and maintain a …

Improved reproductive efficiency could lead to economic benefits for the beef industry, once
the intensive selection pressure has led to a decreased fertility. However, several factors …

The liver plays a central role in metabolism and produces important hormones. Hepatic
estrogen receptors and the release of insulin-like growth factor 1 (IGF1) are critical links …

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 …

Reproductive traits are economically important for beef cattle production; however, these
traits are still a bottleneck in indicine cattle since these animals typically reach puberty at …