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Hydrodynamics Of Freshwater Turtles: Maneuverability, Stability, And Effects Of Shell Shape, Gabriel Rivera
Hydrodynamics Of Freshwater Turtles: Maneuverability, Stability, And Effects Of Shell Shape, Gabriel Rivera
All Dissertations
Aquatic organisms exhibit tremendous diversity in body design and modes of propulsion that can strongly influence locomotor performance. Understanding how such differences affect locomotor performance is a major focus of research in integrative organismal biology and can provide insight into the evolutionary origins of such variation. Turtles are unique among extant tetrapods (i.e., amphibians, reptiles, birds, and mammals) in that they possess rigid bodies. In turtles, the vertebrae are fused dorsally with a bony carapace, precluding movement of the axial skeleton between the base of the neck and the tail. As a result of their immobilized axial skeleton and reduced …
The Effect Of Moderate Exercise On Folliculogenesis, Cortisol, Estradiol And Luteinizing Hormone In Mares, Dale Kelley
The Effect Of Moderate Exercise On Folliculogenesis, Cortisol, Estradiol And Luteinizing Hormone In Mares, Dale Kelley
All Theses
Assisted reproductive technologies allow mares to remain in training and produce offspring; however, limited data regarding the impact of exercise on folliculogenesis exists. Mares in training are reported to have reduced embryo recovery rates and ovulated smaller follicles. The objectives of this study are to evaluate the effect of exercise on folliculogenesis using ultrasound technology. Additionally, cortisol, luteinizing hormone (LH), follicle stimulating hormone (FSH) and estradiol concentrations in mares were evaluated. The exercise period was from April to September 2008 at Latitude: 34¡ 41' 1' N. Thirteen horses were assigned to Exercise (n=6) or Control group (n=7). Mares were exercised …
Life History Characteristics Of The Turquoise Darter (Etheostoma Inscriptum) In The Upper Piedmont Of South Carolina, Stephan Irwin
Life History Characteristics Of The Turquoise Darter (Etheostoma Inscriptum) In The Upper Piedmont Of South Carolina, Stephan Irwin
All Theses
ABSTRACT
The intention of this study was to estimate population density, time of spawning, and fecundity of the turquoise darter (Etheostoma inscriptum) in Six Mile creek of the Clemson SC experimental forest. Population density estimates were conducted on 18 riffles within the lower 1,524 m of the creek starting 304.8 m above its confluence with Lake Issaqueena from January to April 2008. Density was determined using the Leslie Depletion method, and darters/m2 was calculated. Random point collection was performed From October 14 to November 13, 2008, and 301 specimens were measured and released to determine length frequency of the population. …
Measuring The Impact Of Varied Instructional Approaches In An Introductory Animal Science Course, Brian Bolt
Measuring The Impact Of Varied Instructional Approaches In An Introductory Animal Science Course, Brian Bolt
All Dissertations
The objectives of this project were to: evaluate the impact of demographic descriptors (gender, class rank and final grade) on student's self perceived level of engagement in classroom activities; measure the impact of varying teaching styles on a student's likelihood of correctly answering a knowledge based question and: assessing the relationship of knowledge acquisition with their level of engagement. Data were collected on students in the AVS 150, introductory animal science class (n=155) at Clemson University during the fall of 2008. Ten to fifteen minutes of class time were classified as conforming exclusively to one of three types of material …
Metabolic Tracer Studies Of Linoleic And Linolenic Acids To Identify Biohydrogenation Intermediates Produced By Ruminal Microorganisms, Yong-Jae Lee
All Dissertations
Conjugated linoleic acids (CLA) have been shown to regulate many physiological functions affecting human health. These CLA can endogenously originate from trans fatty acids through the enzymatic activity of desaturase, or they are produced from dietary polyunsaturated fatty acids via the biohydrogenation process in the rumen. A minimum of seventeen CLA isomers have been identified in the intestinal contents of ruminants; however, the entire synthetic pathway for all isomers is not known. The objective of this study was to establish the number and identity of intermediates including CLA that originate from linoleic and linolenic acid biohydrogenation. To accomplish this objective, …
The Effects Of Wastewater Effluent On A Fish And Amphibian Species, Anthony Sowers
The Effects Of Wastewater Effluent On A Fish And Amphibian Species, Anthony Sowers
All Dissertations
Wastewater effluents have been shown to contain a variety of anthropogenic compounds, many of which have endocrine-disrupting properties. While multiple laboratory studies have shown the effects of such compounds on an individual basis at elevated concentrations, little research has attempted to characterize the effects of exposure to environmentally relevant mixtures of endocrine disruptors. The current study examined the effects of long-term exposure to graded concentrations of wastewater effluent on the fathead minnow, Pimephales promelas, and the northern leopard frog, Rana pipiens. Fathead minnows were exposed from the larval stage through sexual maturity, while northern leopard frogs were exposed as eggs …