Index Catalog // ScholarsArchive@OSU

Effects of Dried Chicory Root on Parasite Loads and Complete Blood Count of Sheep

Creator:: Kirschten, Haley M.
Abstract:: Growing concerns over the rise of anthelmintic resistant populations of gastrointestinal nematodes (GINs) have led producers to look for alternative means of treatment. These sentiments have been echoed by organic producers, who are restricted from the use of synthetically derived anthelmintics in the US. Chicory has emerged as a potential...
Resource Type:: Masters Thesis
Full Text:: PhD. I would like to thank Drs. Massimo Bionaz, Charles Estill, and Si Hong Park for serving as my

Possible Autocrine/Paracrine Action of Progesterone in the Ovine Corpus Luteum

Creator:: Smallman, Mary A.
Abstract:: The objective of the present research was to determine, by use of the progesterone receptor antagonist RU-486, whether progesterone by autocrine/paracrine action suppresses phosphatidylinositol hydrolysis, and thus, the production of prostaglandin F2a during the midluteal phase of the estrous cycle in ewes. Two experiments were performed. Experiment 1 consisted of...
Resource Type:: Masters Thesis
Full Text:: on this quest to complete this degree. To Dr. Charles Estill, Dr. Theresa Filtz, and Dr. Kevin

Impacts of Stocking Density on Development and Puberty Attainment of Replacement Beef Heifers

Creator:: Schubach, Kelsey M.
Abstract:: The following experiment presented herein compared growth, physical activity, stress-related responses, and puberty attainment in heifers reared on high- (HIDENS) or low-stocking densities (LOWDENS). Sixty Angus x Hereford heifers were ranked by age and BW (210 ± 2 d and 220 ± 2 kg, respectively) on d 0, and assigned...
Resource Type:: Masters Thesis
Full Text:: always being there when I had a question or needed help. Also, I would like to thank Dr. Estill and Dr

Northern fur seal reproductive rates and early maternal care

Creator:: Kunisch, E. (Erin)
Abstract:: The majority of the world's breeding population of northern fur seals (Callorhinus ursinus) is found on the Pribilof Islands (St. Paul and St. George) in the Bering Sea, Alaska. Pup production on these islands experienced an irregular but overall decline since the early 1970's. Between 1998 and 2010, pup production...
Resource Type:: Masters Thesis
Full Text:: the Program MARK analysis (without her help I would still be running models today), Dr. Chuck Estill

Nutritional and management strategies of trace mineral supplementation for beef cattle

Creator:: Puerto Hernandez, Gracia Maria
Abstract:: Two studies evaluated the mineral status of supplemented beef cattle over two different methods of supplementation. The objective of study 1 was to evaluate the mineral status at weaning and subsequent post-weaning performance of calves supplemented prior to weaning, with limited-fed supplements fortified with trace minerals (Cu, Se, and Zn)...
Resource Type:: Masters Thesis
Full Text:: . I want to thank my committee members, Dr. Massimo Bionaz, Dr. Charles Estill, and Dr. Jean Hall

Effect of Agronomically Selenium Biofortified Hay on Oxidative Status, Metabolic and Inflammatory Biomarkers, and Immune Response of Transition Primiparous Dairy Cows and Se Transfer and Glutathione Peroxidase Activity in their Calves

Creator:: Jaaf, Shana S.
Abstract:: During the peripartum period (3 weeks before through 3 weeks after calving, a.k.a. “transition”), high producing dairy cows experience, among others, , oxidative stress and immune suppression that compromise performance and increased incidence of diseases.Among trace minerals, supplementation of Selenium (Se) can help to improve the transition by enhancing glutathione...
Resource Type:: Dissertation
Full Text:: . Charlis Estill, for his help and guidance with my experiment and serving on my graduate committee. I

Role of Peroxisome Proliferator-Activated Receptor Gamma on Prevention/Cure of Mastitis

Creator:: Trindade da Rosa, Fernanda
Abstract:: Mastitis is a major endemic disease in dairy cows resulting in significant economic losses for the dairy industry. The peroxisome proliferator-activated receptor gamma (PPARγ) is a nuclear receptor that is able to bind and be activated by natural (e.g., fatty acids) and synthetic (e.g. thiazolidinedione) compounds. PPARγ plays important roles...
Resource Type:: Masters Thesis
Full Text:: Estill for always being there when I needed help. Also, I would like to thank Dr. Donald Jump and Dr

Nutritional strategies to improve the reproductive performance of beef females

Creator:: Cappellozza, Bruno Ieda
Abstract:: In the first set of studies, 2 experiments evaluated the influence of supplement composition on ruminal forage disappearance, performance, and physiological responses of Angus × Hereford cattle consuming a low-quality, cool-season forage (8.7 % CP and 57 % TDN). In Exp. 1, 6 rumen-fistulated steers housed in individual pens were...
Resource Type:: Dissertation
Full Text:: Estill, and Dr. Beth Valentine for the availability to serve on my Ph. D. defense. I also would like to

Biotransformation of 2,4,6-trinitrotoluene by ruminal organisms

Creator:: De Lorme, Marthah J. M.
Abstract:: 2,4,6-Trinitrotoluene (TNT) has been the common munitions used in the world and is an environmental contaminant that is amendable to reductive transformation reactions. The rumen is an extremely reductive environment containing diverse microbial populations. There are 21 pure culture ruminal bacteria species in culture collection, these were tested for the...
Resource Type:: Dissertation

Nutritional Management of Beef Cows During Late-Gestation to Enhance Offspring Productivity

Creator:: Marques, Rodrigo Da Silva
Abstract:: Two experiments evaluated nutritional management of late-gestating beef cows to enhance offspring productivity. The objective of experiment 1 was to evaluate the effects of organic and inorganic Cu, Mn, Zn, and Co supplementation to beef cows during late-gestation on performance and physiological responses of the offspring. The objective of experiment...
Resource Type:: Dissertation
Full Text:: committee members, Dr. Russell Turner, Dr. Charles Estill, and Dr. Ricardo Mata-Gonzalez for the

ScholarsArchive@OSU

Effects of Dried Chicory Root on Parasite Loads and Complete Blood Count of Sheep

Possible Autocrine/Paracrine Action of Progesterone in the Ovine Corpus Luteum

Impacts of Stocking Density on Development and Puberty Attainment of Replacement Beef Heifers

Northern fur seal reproductive rates and early maternal care

Nutritional and management strategies of trace mineral supplementation for beef cattle

Effect of Agronomically Selenium Biofortified Hay on Oxidative Status, Metabolic and Inflammatory Biomarkers, and Immune Response of Transition Primiparous Dairy Cows and Se Transfer and Glutathione Peroxidase Activity in their Calves

Role of Peroxisome Proliferator-Activated Receptor Gamma on Prevention/Cure of Mastitis

Nutritional strategies to improve the reproductive performance of beef females

Biotransformation of 2,4,6-trinitrotoluene by ruminal organisms

Nutritional Management of Beef Cows During Late-Gestation to Enhance Offspring Productivity

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