Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Lemley, Caleb O.
Committee Member
Burnett, Derris D.
Committee Member
Larson, Jamie E.
Committee Member
Smith, Trent
Date of Degree
5-4-2018
Document Type
Graduate Thesis - Open Access
Major
Animal and Dairy Sciences
Degree Name
Master of Science (M.S.)
College
College of Agriculture and Life Sciences
Department
Department of Animal and Dairy Sciences
Abstract
Melatonin is a strong antioxidant that has previously been observed to increase uteroplacental blood flow and increase postnatal calf growth when supplemented during gestation. The objective of the current study was to examine the effects of melatonin implants on uterine blood flow and subsequent offspring growth. Commercial beef heifers and cows were artificially inseminated and assigned to one of two treatment groups supplemented with (MEL) or without (CON) melatonin from days 180 to 240 of gestation. Total uterine artery blood flow was increased in MEL- versus CON-treated cattle. Fetal and birth weight were not different between treatments. However, at castration, body weight was increased in calves from MEL-treated dams compared with CON-treated dams. Further research on placental vascularization and the mechanism in which melatonin impacts angiogenic factors is necessary to understand the relationship between melatonin and compensatory growth that occurs in postnatal offspring.
URI
https://hdl.handle.net/11668/17732
Recommended Citation
McCarty, Keelee Jae, "Melatonin Implants during Pregnancy on Maternal Hemodynamics and Growth of Offspring in Beef Cattle" (2018). Theses and Dissertations. 3058.
https://scholarsjunction.msstate.edu/td/3058
Comments
melatonin||uterine blood flow||placenta||offspring development