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Full-Text Articles in Life Sciences

Performance And Signaling In The Green Anole Lizard, Justin P. Henningsen Sep 2013

Performance And Signaling In The Green Anole Lizard, Justin P. Henningsen

Open Access Dissertations

Green anoles are small lizards of the Southeastern United States. They possess an extensible throat-fan called a dewlap. Males have larger dewlaps and display them more often than females. Displays occur during courtship, during agonistic interaction, and during encounters with potential predators. The size of the dewlap of male green anoles is positively correlated with maximum bite force capacity. Bite force capacity, in turn, is predictive of the winner during agonistic interactions. The correlation between these traits suggests that dewlap size may be used as a reliable signal of maximum bite force capacity. In this dissertation, I address three components ...


The Relationship Between The Functional Movement Screen™ And Countermovement Jump Height, Joshua Keegan Conlon Aug 2013

The Relationship Between The Functional Movement Screen™ And Countermovement Jump Height, Joshua Keegan Conlon

Theses and Dissertations

Introduction: Pre-participation measures of functional movement and functional performance are commonly used to gauge injury risk and performance baselines before engaging in activity. Functional movement can be evaluated using the Functional Movement ScreenTM (FMSTM). Performance on the FMSTM has been shown to be related to injury risk by previous researchers. Functional performance can be evaluated with countermovement jump (CMJ) testing; performance on a CMJ demonstrates transferable power to athletic tasks. Performance literature has shown that there are movement factors that influence CMJ height. However, to date a significant relationship between performance on functional movement and functional performance tests has not ...


The Ergogenic Effects Of Glucose And Fructose Coingestion During Prolonged Cycling, Daniel A. Baur May 2013

The Ergogenic Effects Of Glucose And Fructose Coingestion During Prolonged Cycling, Daniel A. Baur

Masters Theses, 2010-2019

The purpose of this investigation was to examine the effects of glucose and fructose coingestion on cycling time trial performance and physiological responses to exercise. Eight trained male cyclists (age: 25 ± 6.2 yrs, height: 180.2 ± 4.3 cm, weight: 76.9 ± 9.2 kg, and VO2max: 61.9 ± 6.2 mL∙kg-1∙min-1) completed the study. Subjects ingested either an artificially-sweetened placebo (PL), a moderate-glucose beverage (MG: 1.0 g•min-1), a high-glucose beverage (HG: 1.5 g•min-1), or a glucose and fructose beverage (GF: 1.5 g•min-1; 2:1 ratio) during ~3 hrs of exercise ...


Cycling Time Trial Performance Is Not Enhanced By Either Whey Protein Or L-Alanine Intake During Prolonged Exercise, Adam B. Schroer May 2013

Cycling Time Trial Performance Is Not Enhanced By Either Whey Protein Or L-Alanine Intake During Prolonged Exercise, Adam B. Schroer

Masters Theses, 2010-2019

Previous studies have reported that adding protein (PRO) to a carbohydrate (CHO) solution can enhance endurance performance. This ergogenic effect may be a function of additional calories from supplemental protein/amino acids, but this thesis has not been directly examined. Additionally, L-alanine (ALA) is readily oxidized when provided during exercise; the impact that this has on metabolism and prolonged endurance performance is unknown. The purpose of this investigation was to assess performance and various cardiovascular and metabolic outcomes during prolonged cycling, to independently gauge the efficacy of whey PRO hydrolysate and ALA supplementation. Eight trained male and female cyclists (age ...


Genetic And Phenotypic Relationships Between Feed Intake During Lactation And Reproductive Performance, Chad Lewis Yoder Jan 2013

Genetic And Phenotypic Relationships Between Feed Intake During Lactation And Reproductive Performance, Chad Lewis Yoder

Graduate Theses and Dissertations

Daily feed intake during lactation was recorded on purebred Yorkshire (n = 1587), Landrace (n = 2197), and F1 Yorkshire x Landrace (n = 6932) litters from day 1 to 22 of lactation. Lactation feed intake (LFI) curves were predicted using a mixed model which included fixed effects of breed, season, parity group (PG), day of lactation, interactions of day with breed and PG, and a covariate for litter size after cross–fostering. Random effects included litter, contemporary group (herd–year–month), dam, and sire nested within breed. Least squares means for each day were used to define LFI curves by breed through ...


The Effect Of High And Low Dietary Fiber Diets On The Performance Of Two Lines Of Chickens With Divergent Growth Rates, Muhammed Walugembe Jan 2013

The Effect Of High And Low Dietary Fiber Diets On The Performance Of Two Lines Of Chickens With Divergent Growth Rates, Muhammed Walugembe

Graduate Theses and Dissertations

An experiment was designed to determine the effects of feeding high dietary fiber on the performance, cecal short chain fatty acid (SCFA) concentration and cecal microbial ecology of broiler and layer chicks. All diets were formulated to meet or exceed NRC (1994) standards for starter chicks with the lower fiber diet based on corn-soybean meal (SBM) and the higher fiber diet formulated using corn-SBM-dried distillers grains with solubles (DDGS) and wheat bran. The higher fiber diet contained 60.0 g/kg of both DDGS and wheat bran from 1-12 d and 80.0 g/kg of both DDGS and wheat ...


The Effects Of Actigen® And Threonine Supplementation On Growth Parameters, Immune Function, And Intestinal Health In Monogastrics, Lindsay Good Jan 2013

The Effects Of Actigen® And Threonine Supplementation On Growth Parameters, Immune Function, And Intestinal Health In Monogastrics, Lindsay Good

Theses and Dissertations--Animal and Food Sciences

The objectives of these experiments were to evaluate the main effects and interactive effects between dietary supplementation of a mannan oligosaccharide based product, Actigen® (ACT), and different levels of threonine in monogastrics, as evidenced by growth parameters, immune function, and intestinal health characteristics.

In nursery piglets, ACT supplementation decreased average daily feed intake (P=0.04), but had no effect on body weight or feed conversion ratio. There were no noted differences between threonine levels on performance traits. There were no consistent differences in complete blood count or cytokine gene expression profiles in the blood. The highest level of threonine ...