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Maternal Corticosterone Influences On Fear Responses In Offspring Of Quail Divergent Stress Response Lines, Kyndal A. Davis
Maternal Corticosterone Influences On Fear Responses In Offspring Of Quail Divergent Stress Response Lines, Kyndal A. Davis
LSU Master's Theses
Increased fearfulness has been associated with adrenocortical activation. Maternal corticosterone (B) treatment increases egg yolk B, and elevated B in ovo enhances chick avoidance of humans. Quail selected for exaggerated (high stress, HS) as opposed to reduced (low stress, LS) plasma B response to stress are more fearful, and more B is found in the egg yolks of HS than LS hens. Therefore, the underlying fearfulness (tonic immobility, TI) and timidity (hole-in-the-wall box, HWB, emergence) responses were assessed in chicks hatched from eggs of LS and HS hens implanted with silastic tubes containing no B (CON) or B (B-IMPLANT) during …
Hatchability Of Post-Peak Egg Production Broiler Breeder Eggs As Influenced By Pre-Incubation Warming, Cameron Benjamin Wiggins Ii
Hatchability Of Post-Peak Egg Production Broiler Breeder Eggs As Influenced By Pre-Incubation Warming, Cameron Benjamin Wiggins Ii
LSU Master's Theses
This research was conducted to determine the effects of pre-incubation warming on the hatchability of post-peak egg production broiler breeder eggs. An experiment with six trials was conducted with 7,920 freshly laid eggs from Ross 308 and 708 broiler breeders from 61-67-wks of age. For each trial, 1,320 eggs were used to determine if pre-incubation warming treatments of 0, 2, 4, and 6, or 0, 3, 6, and 9, or 0, 9, 12 and 15 hrs (at 37.6°C) could improve the hatchability of eggs stored (at 15.5°C) for three days. After a storage period of three days, the eggs were …
Development And Quality Evaluation Of Pre- And Post-Workout Sport Beverages, Maria Christine Pfister
Development And Quality Evaluation Of Pre- And Post-Workout Sport Beverages, Maria Christine Pfister
LSU Master's Theses
Athletes and gym goers are continuously searching for sports supplements that will set them apart from others. Resistance training is a popular form of exercise that enables one to increase in strength and power. Resistance or strength training, however, results in several degradation processes. A popular way of enhancing workouts and recovering after workouts is through the consumption of sports drinks. In study one, a preliminary study, eight pre-workout and eight post-workout sports drinks were formulated that contained whey proteins, sugars, natural fruit flavors, and other vitamins and supplements. A consumer acceptance test was preliminarily conducted to evaluate consumer acceptability …
Evaluation Of Novel Dietary Feed Additives For Nursery And Growing/Finishing Pigs, Victor D. Naranjo
Evaluation Of Novel Dietary Feed Additives For Nursery And Growing/Finishing Pigs, Victor D. Naranjo
LSU Master's Theses
The objectives of this research were: 1) to compare the effect of source and level of inclusion of dried whey permeate (DWP) and a carbohydrate product (CHO) on growth performance of nursery pigs, 2) to evaluate the effect of a fortified nutrient pack (FNP) on growth performance and total tract nutrient digestibility in growing/finishing pigs, and 3) to compare chromic oxide (Cr2O3) and acid insoluble ash (AIA) as digestibility markers for total tract digestibility determination in growing/finishing pigs. Three experiments were conducted to compare the feeding value of DWP (80% lactose) and CHO (40% lactose, 30% sucrose, and 10% glucose) …
Spatial Economics Of The Louisiana Wetland Mitigation Banking Industry, Ryan Joseph Bourriaque
Spatial Economics Of The Louisiana Wetland Mitigation Banking Industry, Ryan Joseph Bourriaque
LSU Master's Theses
Bourriaque, Ryan Joseph, B.A. Louisiana State University, 2005 Master of Science, Summer Commencement, 2008 Major: Agricultural Economics Spatial Economics of the Louisiana Wetland Mitigation Banking Industry Thesis directed by Assistant Professor Rex Caffey Pages in thesis, 86. Words in abstract, 265. ABSTRACT Wetland mitigation banking has become prevalent in many states across the US, with the number of banks increasing 780% from 1992 to 2005. Louisiana led the nation in the total number of banks in 2006 with 96. Despite rapid growth associated with this industry, economic data in regards to the market for wetland mitigation bank transactions has been …
Distributions And Associations Of Single Nucleotide Polymorphisms In The Leptin Gene Of Bos Taurus And Bos Indicus Cattle, Douglas Henry Fischer, Jr
Distributions And Associations Of Single Nucleotide Polymorphisms In The Leptin Gene Of Bos Taurus And Bos Indicus Cattle, Douglas Henry Fischer, Jr
LSU Master's Theses
In recent years, the use of genetic markers has become more and more prevalent in beef breeding programs. This research focused on four previously identified single nucleotide polymorphisms in a leptin gene on chromosome 4 of beef cows. The SNP were E2FB, T945M, UA1, and UA2. Beef cows used in this research were maintained at the Louisiana State University AgCenter Central Research Station. Cows consisted of purebred Bos tauras and Bos indicus cattle as well as crossbreds. The objectives were to estimate genotypic and allelic frequencies for each SNP and to determine the influence of cow breed type, cow age, …
The Utilization Of Red Blood Cells In Diets For Swine And Poultry, Emily Dawn Frugé
The Utilization Of Red Blood Cells In Diets For Swine And Poultry, Emily Dawn Frugé
LSU Master's Theses
The purpose of this research was to determine if increasing levels of RBC would affect growth performance and carcass characteristics of finishing pigs and growth performance of broilers. Three experiments were conducted to determine the effect of incremental levels of red blood cells (RBC; 0 to 4% and 0 to 2%), and thus increasing levels of dietary Leu on growth performance and linear carcass measurements of finishing pigs. Our results suggest that feeding 3 or 4% RBC causes a decrease in growth performance. However, feeding 1 or 2% RBC in the diets of finishing pigs had no detrimental effects on …
Analysis Of The Impact And Importance Of Re-Wholesalers In The Ornamental Market, Marco Absalón Velástegui
Analysis Of The Impact And Importance Of Re-Wholesalers In The Ornamental Market, Marco Absalón Velástegui
LSU Master's Theses
Sales by ornamental nurseries in the United States have grown, recently, at an impressive rate. For example, sales of the greenhouse and nursery crops component increased about 18% from 2000 to 2006 (USDA, 2007). The evolution of a diverse set of market channel alternatives, including the garden center, landscaper, home center, mass merchandiser and re-wholesaler channels, has been one of the reasons for this growth. Knowledge about growers’ use of the individual marketing channels is indispensable for the development of appropriate sales strategies for better income and profits. Periodic survey data indicates that the re-wholesaler channel is a frequently used …
Estimating The Economic Impacts Of Hurricane Damage On Coastal Fishing Infrastructure, Tanza Erlambang
Estimating The Economic Impacts Of Hurricane Damage On Coastal Fishing Infrastructure, Tanza Erlambang
LSU Master's Theses
Two severe Hurricanes, Katrina and Rita, caused devastating damages in the northern Gulf of Mexico during late summer and early fall 2005. Louisiana was the most heavily impacted state, where both storms made initial landfall. The storms caused billions of dollars in damages to public and private infrastructure, with particularly strong impacts to coastal fishing businesses. Numerous assessments of coastal fisheries infrastructure damage were developed by state and federal agencies following the storms. The range of estimates varied greatly (from $275 million to $3.5 billion), because of a wide range of methods and assumptions. This study describes two alternative damage …
Antidumping Investigation In Agriculture: Issues Of Trade Diversion-Named Vs Non-Named Countries, Nandini Bandyopadhyay
Antidumping Investigation In Agriculture: Issues Of Trade Diversion-Named Vs Non-Named Countries, Nandini Bandyopadhyay
LSU Master's Theses
This study addresses the issue of antidumping investigations and their effect on trade of agricultural products. The question which this study addresses is whether antidumping is helping domestic industries or is simply diverting trade away from the named countries to the non- named countries (countries not mentioned in the antidumping petition). Antidumping has emerged as an important tool in the hands of importing countries over the last two decades The World Trade Organization (WTO) has defined dumping as a situation of international price discrimination. Dumping occurs when exporting countries are selling the product in the international market at a price …
Examination Of Blueberry Anthocyanins In Prevention Of Age-Related Macular Degeneration Through Retinal Pigment Epithelial Cell Culture Study, Naomi Marie Sundalius
Examination Of Blueberry Anthocyanins In Prevention Of Age-Related Macular Degeneration Through Retinal Pigment Epithelial Cell Culture Study, Naomi Marie Sundalius
LSU Master's Theses
This research investigated the ability of blueberry anthocyanins to inhibit the uptake of N-retinyl-N-retinylidene ethanolamine (A2E) by retinal pigment epithelial (RPE) cells as quantified by pigment epithelial derived factor (PEDF) levels in RPE cells. The A2E was synthesized and identified by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). Freeze dried blueberry powder of 50/50 blend (Tifblue/Rubel) anthocyanins were extracted by acetone and concentrated through chromatography. A RPE cell culture study investigating four treatments using a combination of 100 ìM A2E in DMSO and 100 ìg of blueberry anthocyanins in DMSO was tested. The treatments included: (A) control RPE cells; (B) RPE …
Succession Of Coleoptera On Freshly Killed Loblolly Pine (Pinus Taeda L.) And Southern Red Oak (Quercus Falcata Michaux) In Louisiana, Stephanie Gil
Succession Of Coleoptera On Freshly Killed Loblolly Pine (Pinus Taeda L.) And Southern Red Oak (Quercus Falcata Michaux) In Louisiana, Stephanie Gil
LSU Master's Theses
Wood is important in forest ecology because its large biomass serves as a nutritional substrate and habitat for many organisms, including Coleoptera, and beetles contribute greatly to nutrient recycling in forests. Overlapping complexes of beetles invade dead wood according to the species of tree, ambient conditions, and most importantly, stage of decomposition. Beetle succession was studied in loblolly pines (Pinus taeda L.) and southern red oaks (Quercus falcata Michx.) by documenting beetle arrival and residency in cut, reassembled, and standing bolts. Twelve trees of each species at Feliciana Preserve in West Feliciana parish, LA were felled during October 2004 and …
The Effects Of Quercetin On Skeletal Muscle Mitochondrial Biogenesis And Oxphos Regulation, Jeff Lee Soileau
The Effects Of Quercetin On Skeletal Muscle Mitochondrial Biogenesis And Oxphos Regulation, Jeff Lee Soileau
LSU Master's Theses
A high fat diet causes a reduction in the expression of the genes of the electron transport chain, mitochondrial carrier proteins, and PGC-1α and PGC-1ß mRNA. Mitochondrial dysfunction has been linked to numerous chronic diseases. The antioxidant quercetin has been shown to protect against damage caused by exogenous and endogenous free radicals. The purpose of this study was to determine if quercetin would protect the genes of mitochondrial biogenesis (PGC-1α and PGC-1ß) and OXPHOS regulation (NDUFB5 and SDHB) from the downregulation caused by consumption of a high fat diet. The quadriceps muscle was removed from 21 male, C57BL/6J mice that …
The Influence Of Calf Selenium Status On Gpx-1 And 3 Activity And Liver Gpx-1 Mrna, Genevieve Elizabeth Tanner
The Influence Of Calf Selenium Status On Gpx-1 And 3 Activity And Liver Gpx-1 Mrna, Genevieve Elizabeth Tanner
LSU Master's Theses
The purpose of this research was to determine the influence of dietary Se on glutathione peroxidase (GPx)-1 and 3 activities and relative liver GPx mRNA levels in growing Holstein bull calves. Calves (n = 14) were started 28 d after birth on either a Se adequate (0.15 ppm Se) or deficient (0.01 ppm Se) diet consisting of 3 growth phases and maintained on the diet until 180 d of age. Blood samples were taken from each calf for determination of GPx-1 and GPx-3 activity. Three calves were euthanized at d 21 of age for determination of baseline liver GPx-1 mRNA …
Effects Of Probiotics And Yeast Culture On Rumen Development And Growth Of Dairy Calves, Jennifer Marie Laborde
Effects Of Probiotics And Yeast Culture On Rumen Development And Growth Of Dairy Calves, Jennifer Marie Laborde
LSU Master's Theses
Forty-eight calves (heifers n=20, bulls n=28) were randomly assigned one of four dietary treatments which included no additive (C); the yeast culture Saccharomyces cerevisiae (YC); the probiotics Bacillus lichenformis and Bacillus subtilis (P); and both yeast culture and probiotics (YCP). Calves were administered treatments from day 2 to 56 in starter and from day 57 to 84 in grower diets. Body weights were measured at birth and weekly thereafter until day 112 of age. Wither and hip heights were measured weekly. Feed intake, water intake, and fecal scores were recorded twice daily until day 56. Rumen fluid was collected on …
Factors Potentially Influencing The Abundance Of Mosquitoes In Louisiana Rice Fields, Ana Maria Sanchez De Cuadra
Factors Potentially Influencing The Abundance Of Mosquitoes In Louisiana Rice Fields, Ana Maria Sanchez De Cuadra
LSU Master's Theses
The rice stink bug (Oebalus pugnax) is the major pest of late-season rice in Louisiana. Prior studies indicate that large populations of mosquitoes are often present in rice fields during the time that rice fields are infested with rice stink bugs. Lambda-cyhalothrin (Karate®) is widely used to control rice stink bugs. The purpose of this study was to determine if application of the insecticide Karate® at a rate of 0.033 kg/ha, for rice stink bug control had an effect on the population of mosquitoes in rice fields. This effect was assessed by monitoring natural populations of mosquitoes before and after …
Influences Of Maternal Corticosterone On Incubation Length And Hatchability Of Eggs Laid By Quail Hens Selected For Divergent Adrenocortical Stress Responsiveness, Jason Berante' Schmidt
Influences Of Maternal Corticosterone On Incubation Length And Hatchability Of Eggs Laid By Quail Hens Selected For Divergent Adrenocortical Stress Responsiveness, Jason Berante' Schmidt
LSU Master's Theses
Unstressed and stressed quail hens selected for exaggerated (HS, high stress) rather than reduced (LS, low stress) plasma corticosterone (B) response to brief restraint deposit more B into their eggs than do their LS hen counterparts. HS hens implanted with B also show reduced egg lay when compared to LS- and HS-control and LS-B-implanted hens. Herein, the effects of stress line on length of egg incubation (LEI) and chick body weight at emergence (BWTE) (Exp. 1) and the interactive influences of line with maternal B-treatment (sub-Q control, CON-, or B-implants) on LEI (Exp. 2) and on egg fertility (FERT), total …
Characterizing The Epidemiology Of Bluetongue Virus Serotype One In South Louisiana, Michael Edward Becker
Characterizing The Epidemiology Of Bluetongue Virus Serotype One In South Louisiana, Michael Edward Becker
LSU Master's Theses
In November 2004, bluetongue virus (BTV) serotype 1 was detected for the first time in the U.S. from a hunter-killed deer in the marsh area of the Atchafalaya Delta in St. Mary Parish, LA. Subsequent serum surveys of three cattle farms further inland from the area where the deer was shot found bluetongue virus serotype 1 positive cattle on two of the three farms. The purpose of this study was to determine potential BTV vectors in the area where BTV-1 positive animals were detected and compare different trapping techniques for capturing specimens of the genus Culicoides. The study was conducted …
The Use Of Serum Uric Acid As An Indicator Of Amino Acid Utilization In Diets For Broilers, Amanda L. Donsbough
The Use Of Serum Uric Acid As An Indicator Of Amino Acid Utilization In Diets For Broilers, Amanda L. Donsbough
LSU Master's Theses
The purpose of this research was to determine if serum uric acid (SUA) could be used as an indicator of amino acid (AA) utilization in broilers and to determine the Lys requirement of broilers using SUA as a response variable. Treatments were replicated with at least 6 pens with at least 6 broilers per pen. Experiments (Exp.) were conducted from 0- to 14, 17, or 18- d posthatching in brooder batteries. Five experiments were conducted to determine if SUA and uric acid content of the excreta (UAE) could be used to determine AA adequacy of a diet. The results of …
The Integration Of Mosquito Avian Host Preference With West Nile Virus Activity In Wild Bird And Mosquito Populations In Baton Rouge, Louisiana, Jessica Erin Brauch
The Integration Of Mosquito Avian Host Preference With West Nile Virus Activity In Wild Bird And Mosquito Populations In Baton Rouge, Louisiana, Jessica Erin Brauch
LSU Master's Theses
West Nile virus (WNV) infection rates in wild birds and mosquitoes, and the blood-feeding patterns of mosquitoes were examined at two study sites in Baton Rouge, Louisiana to identify the potential avian reservoir hosts and mosquito vectors of West Nile virus (WNV). Blood samples from a total of 2,442 wild birds in the orders Passeriformes, Piciformes and Columbiformes were collected from May 2006 to April 2008 and tested for the presence of WNV RNA using RT-PCR and antibodies to WNV using an epitope-blocking ELISA. WNV was detected in 3.77% of wild bird blood samples and antibodies to WNV were detected …