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LSU Master's Theses

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Articles 91 - 99 of 99

Full-Text Articles in Veterinary Medicine

Susceptibility Of Bacillus Anthracis To Gamma And Cherry Bacteriophage, Preston A. Fulmer Jan 2003

Susceptibility Of Bacillus Anthracis To Gamma And Cherry Bacteriophage, Preston A. Fulmer

LSU Master's Theses

Bacillus anthracis is a bacterium that causes severe disease mainly in ruminants, but can affect any mammal, including humans. A popular method for the detection of this organism is susceptibility of the bacterial isolate to g bacteriophage. However, to date no study on the resistance of a wide variety of B. anthracis isolates has been conducted. The following study examines the rate of resistance of a wide range of B. anthracis isolates to g phage as well as another phage specific for B. anthracis known as Cherry phage. We also compared susceptibility to phage with another detection method, susceptibility to …

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Developing Risk Assessment Maps For Schistosoma Haematobium In Kenya Based On Climate Grids And Remotely Sensed Data, Kelsey Lee Mcnally Jan 2003

Developing Risk Assessment Maps For Schistosoma Haematobium In Kenya Based On Climate Grids And Remotely Sensed Data, Kelsey Lee Mcnally

LSU Master's Theses

It is important to be able to predict the potential spread of water borne diseases when building dams or redirecting rivers. This study was designed to test whether the use of a growing degree day (GDD) climate model and remotely sensed data (RS) within a geographic information system (GIS), could be used to predict both the distribution and severity of Schistosoma haematobium. Growing degree days are defined as the number of degrees centigrade over the minimum temperature required for development. The base temperature and the number of GDD required to complete one generation varies for each species. A monthly climate …

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Effectiveness Of Copper-Oxide Wire Particles On The Control Of Haemonchus Contortus In Sheep, Ariane Diane Watkins Jan 2003

Effectiveness Of Copper-Oxide Wire Particles On The Control Of Haemonchus Contortus In Sheep, Ariane Diane Watkins

LSU Master's Theses

Among the gastrointestinal nematode parasites that cause the most problems to small ruminants, Haemonchus contortus is one of major concern. Currently, the control of H. contortus and others is almost entirely based on the use of anthelmintics. Consequently, anthelmintic resistance has developed worldwide and this has become a serious problem in small ruminant nematode parasite control programs. In view of this, there is a need for alternative control methods. The use of Copper-Oxide Wire Particles (COWP) to help reduce parasite burden is one such alternative. Three trials were conducted to determine the effect of COWP on the reduction of H. …

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Optimal Age At Fostering For The Derivation Of Helicobacter Hepaticus-Free Mice, Kem Boullion Singletary Jan 2003

Optimal Age At Fostering For The Derivation Of Helicobacter Hepaticus-Free Mice, Kem Boullion Singletary

LSU Master's Theses

Helicobacter hepaticus is well established as an unwanted variable in laboratory rodent colonies. Historically, caesarean section and embryo transfer have been used to derive Helicobacter-free mouse colonies. Neonatal transfer of newborn mice onto Helicobacter-free foster dams was recently reported as an alternative method of deriving Helicobacter-free mice, but until now, the age by which pups must be fostered to remain Helicobacter-free was unknown. The purpose of this study was to determine the age by which mouse pups must be fostered to remain H. hepaticus-free. Beginning on the day of birth, 20 C57BL/6 mice were fostered from H. hepaticus-positive parents onto …

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The Effect Of Experimental Gastric Dilatation-Volvulus On The Adenosine Triphosphate Content And Cellular Permeability Of The Canine Gastric And Jejunal Mucosa, Laura Elizabeth Peycke Jan 2002

The Effect Of Experimental Gastric Dilatation-Volvulus On The Adenosine Triphosphate Content And Cellular Permeability Of The Canine Gastric And Jejunal Mucosa, Laura Elizabeth Peycke

LSU Master's Theses

This study was designed to characterize changes in the content of adenosine triphosphate (ATP) and cellular permeability of gastric and jejunal mucosa during gastric dilatation-volvulus (GDV). Our hypothesis stated that experimental GDV would result in a decrease in ATP content and cellular integrity of the gastric and intestinal mucosa that may improve after decompression and derotation of the stomach. Fifteen medium-to-large mixed-breed male dogs were randomly divided into three groups: GDV dogs, Ischemia dogs and Control dogs. All dogs were maintained on gas anesthesia for 210 minutes. The GDV dogs had a GDV for 120 minutes with a 90-minute period …

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Evaluation Of Feeding Chlamydospores Of Duddingtonia Flagrans To Ewe/Lamb Pairs And Weaned Lambs To Biologically Control Levels Of Haemonchus On Pasture, Natalee Peart Jan 2002

Evaluation Of Feeding Chlamydospores Of Duddingtonia Flagrans To Ewe/Lamb Pairs And Weaned Lambs To Biologically Control Levels Of Haemonchus On Pasture, Natalee Peart

LSU Master's Theses

Gastroenteritis caused by the nematode parasite Haemonchus contortus is a serious concern for small ruminants in the tropics and subtropics. Control is traditionally by anthelmintics and pasture management, however this specific nematode parasite has become resistant to many anthelmintics and research is now focused on novel control methods including biological control using the nematode-trapping fungus, Duddingtonia flagrans. The objective of this study was to investigate the effectiveness of feeding chlamydospores of the fungus at a dosage of 5 x 105 spores/kg of BW to ewe/lamb pairs (Trial 1) and weaned lambs (Trial 2) for a total of 17 and 8 …

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Misconceptions Surrounding The Safety Of Home Birth And Hospital Birth, Misty D. Richard Jan 2002

Misconceptions Surrounding The Safety Of Home Birth And Hospital Birth, Misty D. Richard

LSU Master's Theses

Much debate surrounds the topic of women choosing to deliver their infants at home with the services of a midwife. The outcomes of women beginning labor at home, ultimately delivering at home, and the infants born at home were studied in order to determine the safety of home birth among expectant women choosing to be attended by a midwife licensed to practice by the state of Louisiana. Trends associated with those choosing home birth and the frequency of home birth were also analyzed. The study was conducted using retrospective records of clients accepted during the study years 1986-2000. During the …

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Approaches To Measuring The Frequency Of Achondroplasia And Hypochondroplasia Causing Fgfr-3 Mutations In Human Sperm, Andrew Timothy Daters Jan 2002

Approaches To Measuring The Frequency Of Achondroplasia And Hypochondroplasia Causing Fgfr-3 Mutations In Human Sperm, Andrew Timothy Daters

LSU Master's Theses

Achondroplasia and hypochondroplasia are two forms of skeletal dysplasias caused predominantly by single base mutations in the fibroblast growth factor receptor 3 gene (FGFR-3). The mutation for achondroplasia is a G1138A/C substitution and the mutation for hypochondroplasia (occurring about 50% of the time) is a C1620A/G substitution. Recent genetic studies have shown that spontaneous mutations for achondroplasia and hypochondroplasia occur exclusively on the paternally derived chromosome, suggesting that these mutations occur preferentially during spermatogenesis. For unknown reasons, the mutation rates at these FGFR-3 nucleotides appear to occur at a much higher frequency than nucleotide specific mutation rates observed in other …

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Antipredator Conditioning In Mississippi Sandhill Cranes (Grus Canadensis Pulla), Jennifer Jill Heatley Jan 2002

Antipredator Conditioning In Mississippi Sandhill Cranes (Grus Canadensis Pulla), Jennifer Jill Heatley

LSU Master's Theses

The Mississippi Sandhill Crane (Grus canadensis pulla), the most endangered North American crane, is considered critically endangered and is protected by Federal and State law. Substantial funding has established the Mississippi Sandhill Crane National Wildlife Refuge in Southern Mississippi and an artificial insemination / breeding facility at the Audubon Center for Research of Endangered Species in New Orleans, Louisiana to promote species recovery. In spite of extensive time, labor, and money invested in captive propagation, juvenile Mississippi Sandhill Cranes suffer substantial mortality due to predation by bobcats (Lynx rufus), coyotes (Canis latrans) and red tailed hawks (Buteo jamaicensis) upon reintroduction …

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