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Creator:: Donovan, Caitlin Elizabeth
Abstract:: Reproductive function in the dog is controlled by feedback mechanisms that involve the hypothalamus, the anterior pituitary gland, and the gonads. Surgical gonad removal, a common procedure performed in dogs for the purposes of sterilization, disrupts the hypothalamic-pituitary-gonadal (HPG) axis and results in permanently elevated concentrations of gonadotropins. Manipulation of...
Resource Type:: Masters Thesis
Full Text:: Head of the Department of Animal and Rangeland Sciences Dean of the Graduate School

Creator:: Qu, Yang
Abstract:: Milk fever (MF), retained placenta (RP), and left displaced abomasum (LDA) are three common and costly metabolic diseases in cows during the first days of lactation. Some studies suggest that circulating concentrations of α-tocopherol (ATOC) are decreased by these three diseases. It is, however, unknown if and how long lower...
Resource Type:: Masters Thesis
Full Text:: Department of Animal and Rangeland Sciences Dean of the Graduate School I

Creator:: Bullock, Cheri Jean
Abstract:: During the 21 day incubation period, the fertile egg provides nutrients such as fatty acids for energy and polyunsaturated fatty acids (PUFA) for membrane synthesis to the developing chick. The hypothesis tested in the present study is that the type of PUFA fed to the breeder hen can alter tissue...
Resource Type:: Masters Thesis
Full Text:: the Department of Animal and Rangeland Sciences Dean of the Graduate School

Creator:: Sahlfeld, Laura
Abstract:: This research investigated the development of a novel canine model to study preeclampsia. Normal canine placental development has morphologic and histologic similarities to the shallow trophoblast invasion occurring with preeclampsia in humans, which makes the dog a particularly good choice for modeling this disease and will be an improvement on...
Resource Type:: Masters Thesis
Full Text:: Laura Sahlfeld for the degree of Master of Science in Animal Science presented on May 18, 2012 Title

Creator:: Shriver-Munsch, Christine M.
Abstract:: The transition period is a time of increased nutritional demands and risk to metabolic and infectious diseases in dairy cows due to a suppressed immune system. These problems lead to reproductive challenges, increased culling rates, and decreased milk production postpartum, which leads to decreased profits. Feeding yeast (Saccharomyces cerevisiae) or...
Resource Type:: Masters Thesis
Full Text:: for the degree of Master of Science in Animal Sciences presented on April 29, 2011. Title

ScholarsArchive@OSU