Mississippi State University
Lemley, Caleb O.
Crenshaw, Mark A.
Date of Degree
Graduate Thesis - Open Access
Agriculture (Animal Science)
Master of Science (M.S.)
College of Agriculture and Life Sciences
Department of Animal and Dairy Sciences
The objectives of this study were to determine: the effects of maternal melatonin (MEL) supplementation during late gestation on the histological and molecular regulation in the Longissimus dorsi (LM) muscle of fetal bovine offspring, composition and gene expression of fetal perirenal (PR) adipose tissue, and LM gene expression in postnatal offspring at birth and d 195 of age. Maternal supplementation of MEL during late gestation resulted in no difference in calf fetal body weight or birth weight. However, at d 195 of age, calves from MEL treated dams had an average body weight increase of 20 kg. Fetal LM weight and length tended to be increased in calves from MEL treated dams. Fetal gene expression of calves from MEL treated dams resulted in: increased LM adenosine monophosphate-activated protein kinase-α (AMPK) and decreased PR adiponectin (ADIPOQ), CCAAT enhancer binding protein alpha (CEBPA), proliferator activated receptor gamma (PPARg), and stearoyl-CoA desaturase (SCD). The improved metabolic status of LM coupled with the decrease in adipogenic gene expression, could result in calves from MEL treated dams having improved lean muscle accretion and reduced overall adiposity during postnatal development.
Thompson, Robyn Carl, "Effect of Maternal Melatonin Levels during Late Gestation on the Programming and Metabolic Disposition of Adipose Tissue and Skeletal Muscle in Bovine Offspring" (2018). Theses and Dissertations. 1668.