Impact of Mutations in PRLR on Hair Weight, Prolactin Levels, Feed Intake, and Growth in Beef Cattle in Hot, Humid Climates

    July 2026 in “ Frontiers in Endocrinology ”
    Camila J Cuellar, Daniella Heredia, Jose L. Infante Cangrejo … Hansen Pj
    Studysummary This study observed that beef cattle with certain prolactin receptor gene mutations, known as slick mutations, demonstrated improved post-weaning growth and temperature regulation in a hot, humid climate compared to other genotypes, suggesting genotype influences growth efficiency and heat tolerance.
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    Research cited in this study 1

    1. Prolactin and the Skin: A Dermatological Perspective on an Ancient Pleiotropic Peptide Hormone Journal of Investigative Dermatology · 2008