Pregnancy losses (PL) affect calf production and economic efficiency in beef cattle operations. Here, PL was defined as failure from pregnancy diagnosis to calving, capturing a window approximately 60 days after the breeding season. In Zebu breeds, the genetic understanding of this phenomenon remains limited. The objective of this study was to estimate genetic parameters for PL in Nellore heifers and its associations with reproductive, growth, feed efficiency, and carcass traits. The dataset...

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Despite smoking at lower rates, Black adults who smoke face disproportionate tobacco-related health disparities, including higher nicotine dependence, exposure, and lower cessation rates compared to other racial groups. Smoking motives play a critical role in smoking maintenance and relapse. Anxiety sensitivity (AS), a transdiagnostic cognitive-affective construct, has emerged as a strong predictor of smoking motives (habit, affect reduction, sensorimotor, and stimulant motives) among Black...