Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 37 for “"oxytetracycline"”.
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Oxytetracycline therapy in bovine mastitis.
<p>http://www.worldcat.org/oclc/11204171</p>
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Oxytetracycline Induced Photosensitivity in Channel Catfish (Ictalurus punctatus)
Photosensitivity following injection with oxytetracycline was evaluated in channel catfish. In a controlled experiment, only oxytetracycline-injected fish that were exposed to direct sunlight exhibited necrotic ocular and dorsolateral epidermal lesions. All of the affected fish died within 8 d. All …
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Generic studies on the oxytetracycline producing organism, Streptomyces alboflavus
… Streptomyces alboflavus, produces the antibiotic oxytetracycline. Treatment with curing agents resulted in S. alboflavus losing the ability to produce oxytetracycline. However, the loss of oxytetracyc1ine production was reversible, and non-producing colonies regained the ability to produce …
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The effects of fish waste and oxytetracycline on the microbenthos
Fish feed, feces and oxytetracycline (OTC) were added to sediment microcosm tanks in 1990, and the physical and biological changes in the benthic environment were followed over a period of 28 days. The main objective was to study the response of the microfauna (benthic microbial and protozoan …
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Absorption, Distribution and Excretion of Oxytetracycline and Tetracycline in Female Beagles
The absorption, distribution and excretion of oxytetracycline and tetracycline were studied in female beagles following intra-arterial and oral drug administration. Concentrations of drug in body fluids and selected tissues were determined by high performance liquid chromatography utilizing an …
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The Pharmacokinetics of Oxytetracycline in Dogs With Normal and Impaired Renal Function
… total body clearance. The pharmacokinetics of oxytetracycline (OTC) were compared before and after the induction of renal failure in three experiments: single intravenous dose (11 dogs), single intravenous and oral dose (8 dogs), and multiple oral doses (10 dogs). Animals were replicated in …
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Natural transformation and growth inhibition of azotobacter vinelandii in the presence of adsorbed oxytetracycline
… resistance in the soil microbial community. Oxytetracycline (OTC) is a commonly used antimicrobial in large-scale livestock production systems that can persist in the environment. To better understand how adsorbed antimicrobials could affect antimicrobial resistance, the mechanism of OTC …
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Vitellogenin induction in male Japanese medaka exposed to the chemotherapeutics: oxytetracycline, Romet-30, and copper sulfate
… from exposure to the chemotherapeutics: oxytetracycline, Romet-30®, and copper sulfate was evaluate using Japanese medaka (Oryzias latipes). Medaka were exposed to E2 (0.0552 ìg/L) in aquaria water as a positive control. Medaka were fed oxytetracycline medicated feed at 0.0174 g, 0.0348 …
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Effects of systemic flunixin meglumine, topical oxytetracycline, and topical prednisolone acetate on tear film proteinases innormal horses
… the effects of three medical treatments, topical oxytetracycline, topical prednisolone acetate, and systemic flunixin meglumine, on the activity of two proteinases, matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9), in equine tear film. The study design consisted of twelve …
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Use of High Pressure Liquid Chromatography to Detect and Quantify Oxytetracycline Marks in Walleye Otoliths and Dorsal Spines
<p>Oxytetracycline (OTC) is used to chemically mark calcified structures in walleye Stizostedion vitreum fry and fingerlings. Current visual methods for detection of these marks are subjective, and biologists are unable to quantify the amount of OTC in a sample. The goal of this study was to …
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The Determination of Oxytetracycline Levels in Soft Tissue, Bone, Blood, and Excreta of Patients Suffering From Malignant Cancer
In 1950 Finlay et al. isolated from soil a new actinomycete, Streptomyces rimosus. which was found to produce an antibiotic substance. This substance, which they named terramycin, showed an Inhibitory action against gram-positive cocci, gram-negative enteric organisms, and aerobic spore-forming …
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Pharmacokinetic Profiles of Oxytetracycline in Yellow Perch (Perca flavescens) as Determined by Plasma Concentration Following Different Routes of Administration
Oxytetracycline (OTC) is one of two antibiotics currently available and approved by the U.S. Food and Drug Administration for use as a chemotherapeutic agent in food fish and is widely used in the aquaculture industry. Previous pharmacokinetic studies of OTC have been conducted in cold water and …
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Matrix metalloproteinases in the equine systemic inflammatory response: implications for equine laminitis
… in all studies. The abilities of doxycycline, oxytetracycline, and flunixin meglumine to inhibit LPS-induced equine MMP-2 and MMP-9 activities in vitro were investigated using a digital laminar explant model. The structural integrity of the explants was tested using an Instron biomechanical …
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Exploration of innate immune response during infectious bovine digital dermatitis and the evaluation of topical therapeutic treatment
… topical application of antibiotics such as oxytetracycline or foot baths containing caustic chemicals; however clinical cure rates remain highly variable. In this thesis cattle with DD were monitored to explore the skin innate immune response. An exhaustive description of the inflammatory …
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Pharmacokinetic Studies and Tissue Residue Analysis of Oxytetracycline in Summer Flounder (Paralichthys dentatus) Maintained at Different Production Salinities and States of Health
… allowing for inland intensive fish culture. Oxytetracycline (OTC) is one of two available FDA-approved antibiotics for use in foodfish in the United States. Oxytetracycline was chosen for these studies because it is excreted primarily unchanged through the urine and the absorption, …
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Responses of Nitrifying Bacteria to Aquaculture Chemotherapeutic Agents
… aquaculture. Approved chemotherapeutants include oxytetracycline, Romet-30®, copper, and formalin. Additionally, a number of chemicals, such as Chloramine-T and potassium permanganate, are used off-label for the treatment of aquaculture systems. In this research, these six more commonly used …
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Factors that affect horizontal gene transfer in enteric bacteria
… were exposed to both variable concentrations of oxytetracycline and NE. Conjugation was increased pre- and post- MIC, but conjugation frequencies were not enhanced further by the combination of the oxytetracycline and the NE. This dissertation defines the role of outside factors in conjugative …
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Excretion of Antibiotic Resistance Genes by Dairy Calves
… replacer), subtherapeutic (neomycin sulfate and oxytetracycline hydrochloride each fed at 10 mg/calf/d), and therapeutic (no antibiotics in the milk replacer until d 36, then neomycin sulfate and oxytetracycline hydrochloride each fed at 1000 mg/calf/d for 14 d). Calves were fed milk replacer …
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Removal of antibiotics from contaminated waters using natural zeolite
… antibiotics, namely chlortetracycline (CTC), oxytetracycline (OTC), ofloxacin (OFL), and enrofloxacin (ENR), on natural zeolite was investigated. The impact of pH and natural organic matter (NOM) on the sorption process was examined, and the maximum sorption capacity was calculated using the …
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