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Articles 131071 - 131100 of 250984

Full-Text Articles in Life Sciences

Comparative Study On Muscle Nutritional Composition Of Juvenile Bighead Carp (Aristichthys Nobilis) And Paddlefish (Polyodon Spathula) Fed Live Feed, Pei Song Shi, Qin Wang, Yu Ting Zhu, Qian Hong Gu, Bang Xi Xiong Jan 2013

Comparative Study On Muscle Nutritional Composition Of Juvenile Bighead Carp (Aristichthys Nobilis) And Paddlefish (Polyodon Spathula) Fed Live Feed, Pei Song Shi, Qin Wang, Yu Ting Zhu, Qian Hong Gu, Bang Xi Xiong

Turkish Journal of Zoology

The contents of the proximate composition of amino acids and fatty acids in the muscle of juvenile bighead carp (Aristichthys nobilis) and paddlefish (Polyodon spathula) that were fed with live feed for 60 days were assessed in this investigation. The moisture, crude protein, and crude ash contents of bighead carp muscle were slightly higher than those of paddlefish (P > 0.05). The crude fat content of paddlefish muscle was significantly higher than that of bighead carp (P < 0.01). Seventeen amino acids were detected in the muscle of both bighead carp and paddlefish. The total concentrations of amino acids (TAAs), essential amino acids (EAAs), and delicious amino acids (DAAs) in the muscle of bighead carp were higher than in those of paddlefish. Fifteen fatty acids were detected in both bighead carp and paddlefish muscles, including 5 saturated fatty acids (SFAs), 4 monounsaturated fatty acids (MUFAs), and 6 polyunsaturated fatty acids (PUFAs). The concentrations of muscle \sum SFAs, \sum MUFAs, \sum PUFAs, \sum UFAs, \sum SFAs/\sum UFAs, \sum n-6 PUFAs, \sum n-3 PUFAs, eicosapentaenoic acid (EPA), EPA + docosahexenoic acid (DHA), essential fatty acids (EFAs), and half-essential fatty acids (HEFAs) in bighead carp were significantly lower than those in paddlefish (P < 0.01). In addition, bighead carp possessed significantly lower muscle \sum n-6 PUFAs/\sum n-3 PUFAs content than paddlefish did (P < 0.05). Muscle DHA content of bighead carp was higher than that of paddlefish (P < 0.05).

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Preliminary Study On Acropora (Scleractinia: Astrocoeniina: Acroporidae) Of The Persian Gulf, With Emphasis On The North And Northeastern Areas, Mohammadreza Rahmani, Hassan Rahimian Jan 2013

Preliminary Study On Acropora (Scleractinia: Astrocoeniina: Acroporidae) Of The Persian Gulf, With Emphasis On The North And Northeastern Areas, Mohammadreza Rahmani, Hassan Rahimian

Turkish Journal of Zoology

Due to a lack of adequate taxonomic information on Acropora Oken, 1815 species in the Persian Gulf, especially those inhabiting the coasts of the northern and northeastern areas, an appraisal of the diversity of this genus required comprehensive and careful examination of a large number of specimens. To satisfy such a need, 10-15 cm pieces of more than 1100 colonies of staghorn corals were collected from the subtidal zones of different islands. The specimens were studied using both light stereo and scanning electron microscopes and were identified with regional and global keys. During the study, 9 species of Acropora were …

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Biochemical Composition Of The Hemolymph, Hepatopancreas, Ovary, And Muscle During Ovarian Maturation In The Penaeid Shrimps Fenneropenaeus Merguiensis And F. Penicillatus (Crustacea: Decapoda), Habib Fatima, Zarrien Ayub, Syed Abid Ali, Ghazala Siddiqui Jan 2013

Biochemical Composition Of The Hemolymph, Hepatopancreas, Ovary, And Muscle During Ovarian Maturation In The Penaeid Shrimps Fenneropenaeus Merguiensis And F. Penicillatus (Crustacea: Decapoda), Habib Fatima, Zarrien Ayub, Syed Abid Ali, Ghazala Siddiqui

Turkish Journal of Zoology

The present study quantifies the concentrations of proteins, carbohydrates, and lipids in the hemolymph, ovary, hepatopancreas, and muscle of Fenneropenaeus merguiensis and F. penicillatus during ovarian maturation. Proteins were the major constituent in the hemolymph and ovaries of the 2 species, while lipids were the major constituent in the hepatopancreas. The protein, carbohydrate, and lipid contents in the ovaries of both species increased as ovaries matured. The increase in the protein, carbohydrate, and lipid contents in the ovaries during maturation indicates that the ovaries utilize these constituents to mature. Concentrations of lipids in the hepatopancreas decreased with ovarian maturation in …

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Reevaluation Of The Taxonomic Status Of Sand Boas Of The Genus Eryx (Daudin, 1803) (Serpentes: Boidae) In Northeastern Iran, Naeimeh Eskandarzadeh, Jamshid Darvish, Eskandar Rastegar Pouyani, Fereshteh Ghassemzadeh Jan 2013

Reevaluation Of The Taxonomic Status Of Sand Boas Of The Genus Eryx (Daudin, 1803) (Serpentes: Boidae) In Northeastern Iran, Naeimeh Eskandarzadeh, Jamshid Darvish, Eskandar Rastegar Pouyani, Fereshteh Ghassemzadeh

Turkish Journal of Zoology

Based on the most comprehensive work on Iranian snakes to date, 4 species of the boid snakes of the genus Eryx (Daudin, 1803), E. tataricus (Lichtenstein, 1823), E. miliaris (Pallas, 1773), E. elegans (Gray, 1849), and E. jaculus (Linnaeus, 1758), have been reported from northeastern Iran. In this study, the distribution, morphological characters, and taxonomic status of the genus Eryx in northeastern Iran are reviewed. Four metric and 9 meristic characters were studied in 47 specimens belonging to various populations of Eryx in different parts of Khorasan provinces. Descriptions of the characters of the species of Eryx in northeastern Iran …

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Antlions (Insecta: Neuroptera: Myrmeleontidae) Of Albania, Dusan Devetak, Jan Podlesnik, Vesna Klokocovnik, Franc Janzekovic Jan 2013

Antlions (Insecta: Neuroptera: Myrmeleontidae) Of Albania, Dusan Devetak, Jan Podlesnik, Vesna Klokocovnik, Franc Janzekovic

Turkish Journal of Zoology

The Myrmeleontidae fauna of Albania was studied in July of 2012. The study revealed 14 antlion species, which included new records for the country. Among collected species, Myrmeleon hyalinus Olivier, 1811, Euroleon nostras (Geoffroy in Fourcroy, 1785), Macronemurus appendiculatus (Latreille, 1807), Macronemurus bilineatus Brauer, 1868, and Neuroleon arenarius (Navás, 1904) are new records for the Albanian fauna. Sand dune habitat in the national park Divjakë Karavasta represents the northernmost known locality of Myrmeleon hyalinus in the Balkan Peninsula.

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Two New Records For The Polychaeta Fauna Of The Sea Of Marmara: Laubieriellus Salzi And Spiophanes Afer (Polychaeta: Spionidae), Ertan Dağli Jan 2013

Two New Records For The Polychaeta Fauna Of The Sea Of Marmara: Laubieriellus Salzi And Spiophanes Afer (Polychaeta: Spionidae), Ertan Dağli

Turkish Journal of Zoology

The present study deals with the first records of Laubieriellus salzi and Spiophanes afer in the Sea of Marmara. They were collected from Mytilus galloprovincialis, Zostera marina, sand, and shell fragments substrate at depths ranging from 0.2 to 5 m in November 2010. This study gives more information regarding the morphological and distributional features of these species.

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Ecologically-Framed Mercury Database, Exposure Modeling And Risk/Benefit Communication To Lower Chesapeake Bay Fish Consumers, Xiaoyu Xu Jan 2013

Ecologically-Framed Mercury Database, Exposure Modeling And Risk/Benefit Communication To Lower Chesapeake Bay Fish Consumers, Xiaoyu Xu

Dissertations, Theses, and Masters Projects

Mercury concentrations and determinants of mercury accumulation were examined for ten finfish species from the lower Chesapeake Bay and its tributaries. None of the sampled fish had total mercury concentrations approaching the U.S. EPA human health screening value. Mercury concentrations in different fish species generally increased with increasing delta 15N, but not delta 13C, suggesting that trophic position, but not dietary carbon source was a dominant determinant. A methylmercury biomagnification model was built to estimate a food web magnification factor of approximately 10-fold increase per trophic level in Chesapeake Bay. Based on otolith strontium-calcium ratios, Atlantic croaker inhabiting less saline …

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Modeling The Formation Of Periodic Hypoxia In Partially Mixed Estuaries And Its Response To Oligotrophication And Climate Change, Samuel J. Lake Jan 2013

Modeling The Formation Of Periodic Hypoxia In Partially Mixed Estuaries And Its Response To Oligotrophication And Climate Change, Samuel J. Lake

Dissertations, Theses, and Masters Projects

The development of hypoxia represents one of the most common and ecologically detrimental effects of anthropogenic nutrient enrichment in coastal marine ecosystems. Due to the physiological importance of oxygen as a key component of metabolic processes, the development and persistence of hypoxia can reduce the distribution of important species, modify food webs, decrease diversity and richness, and sub-lethally affect growth and reproductive rates. While many recent studies have focused on the global increase in hypoxia and highlighted the need for nutrient reduction strategies, some key processes associated with hypoxia remain understudied. of particular importance is the resolution of the major …

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Detection And Infectivity Of Human Adenovirus In Wastewater Effluent, Biosolids, And Shellfish, And Its Persistence In Estuarine Water, Wenda Lee Quidort Jan 2013

Detection And Infectivity Of Human Adenovirus In Wastewater Effluent, Biosolids, And Shellfish, And Its Persistence In Estuarine Water, Wenda Lee Quidort

Dissertations, Theses, and Masters Projects

The United States Environmental Protection Agency (USEPA) has established the Total Coliform Rule as an indication of health risks associated with microbial contamination of drinking and ground water. In addition, the fecal coliform test is used as an indicator to reflect the suitability of use by consumers of class A biosolids. However, numerous studies have shown that bacterial indicators are not predictive of enteric viruses, such as human adenovirus (HAdV), which are much more resistant to treatment methods than bacteria. Enteric viral contamination of estuarine waters and locally-harvested shellfish as a result of receiving effluent from wastewater treatment plants, as …

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Abundance, Structure And Function Of Zooplankton-Associated Bacterial Communities Within The York River, Va, Samantha L. Bickel Jan 2013

Abundance, Structure And Function Of Zooplankton-Associated Bacterial Communities Within The York River, Va, Samantha L. Bickel

Dissertations, Theses, and Masters Projects

Mesozooplankton function as microbial microhabitats and can support concentrations of bacteria orders of magnitude higher than in the surrounding water. These zooplankton-associated bacteria can have much higher production rates than their free-living counterparts. Portions of the zooplankton microhabitat may also be anoxic and provide refuge for anaerobic bacteria and their associated processes within the oxygenated water column. Despite their common presence in the marine environment, zooplankton-associated bacteria are largely ignored by microbial ecologists and zooplankton ecologists alike. Consequently, factors which influence zooplanktonassociated bacterial abundance, community composition and function, and how zooplankton-associated bacteria compare to free-living bacteria are not well known. …

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Regression Analysis To Predict Growth Performance From Dietary Net Energy In Growing-Finishing Pigs (2013), Sureemas Nitikanchana, Steven S. Dritz, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Bradley J. White, Jim L. Nelssen Jan 2013

Regression Analysis To Predict Growth Performance From Dietary Net Energy In Growing-Finishing Pigs (2013), Sureemas Nitikanchana, Steven S. Dritz, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Bradley J. White, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Energy concentration in livestock feed is often altered to optimize pig growth performance and feed cost; therefore, an accurate prediction of growth performance as affected by feeding different energy levels is crucial. Data from 41 trials from 17 journal articles, 10 technical memos, and a thesis were used to develop a regression equation to predict ADG or gain to feed (G:F) as influenced by BW and NE content. Linear and quadratic terms of NE, average BW, CP, standardized ileal digestible [SID] lysine, crude fiber, NDF, ADF, fat, and ash, including their interaction terms, were the variables in the regression analysis. …

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Effects Of Added Zinc And Copper On Growth Performance And Carcass Characteristics Of Finishing Pigs Fed Ractopamine Hcl (2013), Kyle F. Coble, Chad B. Paulk, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2013

Effects Of Added Zinc And Copper On Growth Performance And Carcass Characteristics Of Finishing Pigs Fed Ractopamine Hcl (2013), Kyle F. Coble, Chad B. Paulk, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 253 finishing pigs (PIC 327 × 1050; initial BW 204 lb) were used in a 28-d study to determine the effects of added Zn (Availa-Zn; Zinpro Corp., Eden Prairie, MN), Cu (Availa-Cu; Zinpro Corp.), or both to diets containing ractopamine HCl (RAC; Paylean; Elanco Animal Health, Greenfield, IN) on growth performance and carcass characteristics. Pens of pigs were randomly assigned to 1 of 5 treatments and balanced on average pig weight with 7 to 8 pigs per pen. Treatments included a control diet without RAC (negative control) and 4 diets containing 9 g/ton RAC with or without …

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Effects Of Dietary Byproduct Feeding Withdrawal Prior To Market On Finishing Pig Growth Performance, Carcass Characteristics, Carcass Fat Quality, Intestinal Weights, And Economics (2013), Kyle F. Coble, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz, Terry A. Houser, Brandon L. Goehring, M J. Azain Jan 2013

Effects Of Dietary Byproduct Feeding Withdrawal Prior To Market On Finishing Pig Growth Performance, Carcass Characteristics, Carcass Fat Quality, Intestinal Weights, And Economics (2013), Kyle F. Coble, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz, Terry A. Houser, Brandon L. Goehring, M J. Azain

Kansas Agricultural Experiment Station Research Reports

A total of 288 pigs (PIC 327 × 1050; initially 84.7 lb) were used in an 88-d study to determine the timing of high-fiber ingredient removal from the diet prior to marketing to optimize growth performance, carcass characteristics (primarily yield), carcass fatty acid composition, and economics. Two diet types, a corn-soybean meal control diet with low NDF (9.3%) and a high-fiber, high-NDF (19%) diet that contained 30% dried distillers grains with solubles (DDGS) and 19% wheat middlings (midds) were used throughout the study. Pens of pigs were randomly allotted to 1 of 6 dietary feeding strategies with 8 pigs per …

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Effects Of Added Zinc In Diets With Ractopamine Hcl On Growth Performance, Carcass Characteristics, And Zinc Concentrations In Plasma, Loin, And Liver Of Finishing Pigs (2013), Chad B. Paulk, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz, John M. Gonzalez, Joel M. Derouchey, Robert D. Goodband, G M. Hill, K D. Haydon Jan 2013

Effects Of Added Zinc In Diets With Ractopamine Hcl On Growth Performance, Carcass Characteristics, And Zinc Concentrations In Plasma, Loin, And Liver Of Finishing Pigs (2013), Chad B. Paulk, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz, John M. Gonzalez, Joel M. Derouchey, Robert D. Goodband, G M. Hill, K D. Haydon

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effects of added Zn from zinc oxide (ZnO) or Availa-Zn (AZ; Zinpro, Eden Prairie, MN) on growth performance and carcass characteristics of finishing pigs fed ractopamine HCl (RAC; Paylean; Elanco Animal Health, Greenfield, IN). In Exp. 1, a total of 320 pigs (PIC 327 × 1050, initially 215.9 lb) were used in a 35-d study. Pens of pigs were randomly allotted to 1 of 8 dietary treatments, with either 2 barrows or 2 gilts per pen and 20 pens per treatment. Dietary treatments included: a corn-soybean meal—based negative control (0.66% standardized ileal digestible …

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Effects Of High Levels Of Phytase (Ronozyme Hiphos) In Low-Lysine Diets On The Growth Performance Of Nursery Pigs (2013), Kari Beth Langbein, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, J R. Bergstrom Jan 2013

Effects Of High Levels Of Phytase (Ronozyme Hiphos) In Low-Lysine Diets On The Growth Performance Of Nursery Pigs (2013), Kari Beth Langbein, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, J R. Bergstrom

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to determine the effects of added phytase in nursery pig diets formulated at or below their dietary lysine requirements. In Exp. 1, a total of 360 nursery pigs (PIC 327 × 1050, initially 27.3 lb) were used in an 18-d study with 5 pigs per pen and 18 pens per treatment in a university research facility. Pens of pigs were randomly allotted to 1 of 4 dietary treatments arranged in a 2 × 2 factorial with main effects of lysine level (adequate; 1.2% standardized ileal digestible [SID] lysine vs. marginal; 1.05% SID lysine) and phytase level …

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Effects Of Fine-Grinding Corn Or Dried Distillers Grains With Solubles And Diet Form On Growth Performance And Caloric Efficiency Of 25- To 50-Lb Nursery Pigs (2013), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2013

Effects Of Fine-Grinding Corn Or Dried Distillers Grains With Solubles And Diet Form On Growth Performance And Caloric Efficiency Of 25- To 50-Lb Nursery Pigs (2013), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 687 pigs (PIC 1050 barrows; initially 25.5 lb BW and 37 d of age) were used in a 21-d study to determine the effects of fine-grinding corn or dried distillers grains with solubles (DDGS) and diet form on nursery pig performance and caloric efficiency. Pens of pigs were balanced by initial BW and randomly allotted to 1 of 10 dietary treatments with 14 replications per treatment. There were 5 pigs per pen in two groups of nursery pigs. The 10 experimental diets included 4 corn-soybean meal—based diets consisting of: (1) corn ground to ~638 μ, in meal …

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Influence Of A Superdose Of Phytase (Optiphos) On Finishing Pig Performance And Carcass Characteristics (2013), Robert D. Goodband, Kari Beth Langbein, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz Jan 2013

Influence Of A Superdose Of Phytase (Optiphos) On Finishing Pig Performance And Carcass Characteristics (2013), Robert D. Goodband, Kari Beth Langbein, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,188 finishing pigs (PIC 337 × 1050, initially 80.1 lb) were used in a 92-d experiment to determine the influence of providing phytase above that needed to meet the P requirement for growth performance and carcass characteristics. There were 27 pigs per pen and 11 pens per treatment. Each pen contained a similar number of barrows and gilts. Pens were randomly assigned to treatment based on initial BW. Basal diets contained corn, soybean meal, dried distillers grains with solubles (DDGS), and bakery meal and were formulated to meet or exceed the nutrient requirements of the pigs in …

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Ammonia And Hydrogen Sulfide Emissions From Swine Production Facilities In North America: A Meta-Analysis (2013), Zifei Liu, W J. Powers Jan 2013

Ammonia And Hydrogen Sulfide Emissions From Swine Production Facilities In North America: A Meta-Analysis (2013), Zifei Liu, W J. Powers

Kansas Agricultural Experiment Station Research Reports

Ammonia (NH3) and hydrogen sulfide (H2S) emissions from swine production facilities receive considerable attention due to human health and environmental implications. Accurate quantification of farm emissions is essential to ensure compliance with regulatory requirements. The objectives of this study were to provide a review of the literature on NH3 and H2S emissions from swine production facilities in North America with a meta-analysis that integrates results of independent studies, including measured emissions data from both swine houses and manure storage facilities as well as concentration data in the vicinity of swine production facilities. Results from more than 80 studies were identified …

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Amino Acid Digestibility And Energy Concentration Of Fermented Soybean Meal And Camelina Meal For Swine (2013), A B. Graham, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, R C. Thaler Jan 2013

Amino Acid Digestibility And Energy Concentration Of Fermented Soybean Meal And Camelina Meal For Swine (2013), A B. Graham, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, R C. Thaler

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the amino acid and GE digestibility of fermented soybean meal and camelina meal. For Exp. 1, to determine standardized ileal amino acid digestibility, five growing gilts (BW= 60.4 lb) were surgically fitted with T-cannulas at the terminal ileum and randomly allotted to 1 of 3 dietary treatments in a crossover design with 3 periods. The basal diets were corn starch—based with adequate vitamins and minerals to meet the pigs' requirements. The experimental treatments consisted of the basal diet with 30% fermented soybean meal or 39.25% camelina meal as the sole protein sources. A third …

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Effects Of Non-Starch Polysaccharide Enzymes (Roxazyme G2g And/Or Ronozyme Vp) On Growth Performance Of Nursery Pigs Fed Normal Or Drought-Stressed Corn (2013), Cassandra K. Jones, E L. Franz, Hyatt L. Frobose, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, J R. Bergstrom Jan 2013

Effects Of Non-Starch Polysaccharide Enzymes (Roxazyme G2g And/Or Ronozyme Vp) On Growth Performance Of Nursery Pigs Fed Normal Or Drought-Stressed Corn (2013), Cassandra K. Jones, E L. Franz, Hyatt L. Frobose, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, J R. Bergstrom

Kansas Agricultural Experiment Station Research Reports

A total of 360 barrows (PIC 1050 × 337, initially 12.9 lb BW) were used to determine the effects of non-starch polysaccharide enzymes (Roxazyme G2G and/or Ronozyme VP; DSM Nutritional Products, Inc., Parsippany, NJ) on growth performance and nutrient digestibility of nursery pigs fed normal or drought-stressed corn. Initially, corn samples were collected from 34 separate lots and analyzed to find representatives of normal and drought-stressed corn. These same lots were also used in a separate experiment measuring the impact of drought stress on diet manufacturing characteristics. The lot selected to represent the normal corn had a test weight of …

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Evaluation Of Dietary Acidifiers On Growth Performance Of Nursery Pigs (2013), J E. Nemechek, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Joel M. Derouchey, J R. Bergstrom Jan 2013

Evaluation Of Dietary Acidifiers On Growth Performance Of Nursery Pigs (2013), J E. Nemechek, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Joel M. Derouchey, J R. Bergstrom

Kansas Agricultural Experiment Station Research Reports

Three 28-d experiments were conducted to determine the effects of dietary acidifiers on the growth performance of nursery pigs housed under both university and field conditions. All diets were corn-soybean meal—based and fed in meal form. Each experiment consisted of a 2-phase diet series with decreasing nutrient concentrations in the second phase. The same 4 dietary treatments were evaluated in all 3 experiments, including a control with (1) no acidifier, (2) 0.5% Vevovitall (DSM Nutritional Products, Parsippany, NJ), (3) 0.2% Kem-Gest (Kemin Americas, Des Moines, IA), or (4) 0.05% Buti- Pearl (Kemin Americas). In Exp. 1, 280 weanling pigs (PIC …

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Evaluation Of Diet Complexity And Benzoic Acid On Growth Performance Of Nursery Pigs (2013), J E. Nemechek, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Joel M. Derouchey, J R. Bergstrom Jan 2013

Evaluation Of Diet Complexity And Benzoic Acid On Growth Performance Of Nursery Pigs (2013), J E. Nemechek, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Joel M. Derouchey, J R. Bergstrom

Kansas Agricultural Experiment Station Research Reports

A total of 280 weanling pigs (PIC 327 × 1050, initially 15.4 lb, 3 d postweaning) were used in a 28-d trial to evaluate the effects of benzoic acid and diet complexity on growth performance. Treatments were arranged as a 2 × 2 factorial with 2 diet complexities and 2 benzoic acid levels (0 vs. 0.5%) fed for the first 14 d. Diet complexity treatments were either a simple diet that did not contain any lactose, zinc oxide, or specialty protein sources or a complex diet that contained 10% dried whey, 1.25% select menhaden fish meal, 1.25% spray-dried blood cells, …

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Estimation Of Aerosolized Antibiotic Resistant Bacteria Concentrations From Wastewater Treatment Facilities Using Spatially-Based Dispersion Modeling, Renee Nichole Dickman Jan 2013

Estimation Of Aerosolized Antibiotic Resistant Bacteria Concentrations From Wastewater Treatment Facilities Using Spatially-Based Dispersion Modeling, Renee Nichole Dickman

Theses and Dissertations

Pathogenic bacteria can develop resistance to antibiotics to which they were previously sensitive, resulting in increased morbidity and mortality worldwide [1]. The increase in drug resistance in bacteria is an emerging public health concern. The activated sludge tanks of wastewater treatment plants are known sources of antibiotic resistant bacteria. These resistant bacteria can become aerosolized and disperse downwind. Using previously sampled aerosol concentrations and meteorological data, a Gaussian dispersion model was developed to estimate the concentration downwind from a selected wastewater treatment facility. The emission rate was calculated to be 7,941 CFU/m²/sec ± 2,149 CFU/m²/sec. This value was used in …

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Examining The Differences In Rapport Between Male And Female Cancer Genetic Counselors And Female Clients, John Abernethy Jan 2013

Examining The Differences In Rapport Between Male And Female Cancer Genetic Counselors And Female Clients, John Abernethy

Theses and Dissertations

Genetic counseling is a field in which client-counselor rapport plays a critical role in client satisfaction with the genetic counseling process. One factor that may impact this rapport is gender of the genetic counselor. Previous studies in the field of psychological counseling suggest that gender is not a significant moderator of this rapport. To the best of our knowledge, no study has been published in the field of genetic counseling examining the impact that the gender of the genetic counselor has on client-counselor rapport. To study this effect, an amended version of Horvath & Greenberg's (1989) Working Alliance Inventory tool …

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The Mechanisms Of Posterior Shoulder Tightness And Effectiveness Of Manual Therapy, Lane Brooks Bailey Jan 2013

The Mechanisms Of Posterior Shoulder Tightness And Effectiveness Of Manual Therapy, Lane Brooks Bailey

Theses and Dissertations

Posterior shoulder tightness is a common physical impairment in overhand baseball athletes presenting with injury. The etiology of this physical impairment is poorly understood and theorized to be a combination of bony, muscular, and inert soft-tissue contributions occurring at the glenohumeral joint. The ability to discriminate between each tissue's influences on shoulder range of motion is often challenging to overcome within a clinical environment. Chapter 2 of this manuscript provides a thorough review of the literature discussing the potential mechanisms of posterior shoulder tightness. Previous studies have independently accounted for the relationships between posterior shoulder tightness, and the mechanical contributions …

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The Association Of Physical Fitness With Psychological Health Outcomes In Soldiers During Army Basic Combat Training, Shannon K. Crowley Jan 2013

The Association Of Physical Fitness With Psychological Health Outcomes In Soldiers During Army Basic Combat Training, Shannon K. Crowley

Theses and Dissertations

Despite the current need for investigation of factors involved with soldiers' resilience to stressors in the Basic Combat Training (BCT) environment, and evidence in civilian populations that physical training is associated with psychological benefits, little is known about the relationship between physical fitness and psychological adjustment during BCT. Study one of this dissertation involved an extensive literature review of factors related to the relationship between physical fitness and psychological adjustment of soldiers during BCT. Using qualitative focus group methods, study two assessed soldiers' perceptions about their sleep, and consequences of sleep disruption during BCT at Fort Jackson in Columbia, SC. …

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Measurement And Three-Dimensional Modeling Of Hydrodynamic Processes In The Inner Shelf And Surf Zone, Nirnimesh Kumar Jan 2013

Measurement And Three-Dimensional Modeling Of Hydrodynamic Processes In The Inner Shelf And Surf Zone, Nirnimesh Kumar

Theses and Dissertations

Wind stress and surface gravity waves play an important role in creating and modifying flows on the shelf. The importance of surface waves increases in shallow waters especially within the inner shelf and the surf zone. Understanding the generation and maintenance mechanisms of these flow patterns is a requirement for a number of environmental and ecological processes including the transport and fate of sediment, pollutants, buoyant river discharge and anthropogenic material introduced to the coastal zone. This dissertation examines inner shelf and surf zone circulation patterns through: (a) the development and validation of appropriate techniques to incorporate the effect of …

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The Role Of Reactive Oxygen Species In Cell Death Induced By Thymidylate Synthase Inhibitors, Ufuk Ozer Jan 2013

The Role Of Reactive Oxygen Species In Cell Death Induced By Thymidylate Synthase Inhibitors, Ufuk Ozer

Theses and Dissertations

Thymidylate synthase (TS) catalyzes the reductive transfer of a methyl group from N5,N10-methylenetetrahydrofolate (CH2-THF) to dUMP, forming dTMP and dihydrofolate (DHF). It is generally accepted that inhibition of the enzyme leads to a deficiency of dTMP, followed by genome damage and programmed cell death. As such, TS has long been viewed as an important target of anti-neoplastic agents, such as 5-fluorouracil (5-FU) and raltitrexed (RTX), which lead to inhibition of the enzyme. Oxidative stress is well-recognized as having a central role in cellular response to a number of DNA damaging agents, and may be a proximate cause of …

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Doc Dynamics In Eddies Of The Sargasso Sea, Eric Matthew Lachenmyer Jan 2013

Doc Dynamics In Eddies Of The Sargasso Sea, Eric Matthew Lachenmyer

Theses and Dissertations

Bacterial productivity and size-fractioned rates of dissolved organic carbon (DOC) excretion from primary and secondary producers were measured in two eddy types, one anti-cyclonic (February 2012) and one cyclonic eddy (July 2012), in the Sargasso Sea. Bacterial productivity (BP) rates in the cyclonic eddy were highest in the center (9.2 mg C m-2d-1) and edge (10.4 mg C m-2d-1) of the eddy compared to the anti-cyclone center (2.2 mg C m-2d-1) and edge (5.1 mg C m-2d-1). Rates of DOC excretion from14C-tracer experiments were not significantly higher than background; lack of accumulation of labeled material indicated very fast uptake of …

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The Effect Of Cancer Cachexia Severity And Eccentric Muscle Contractions On Selected Myofiber Metabolic Properties In Mouse Skeletal Muscle, Joshua Earl Mangum Jan 2013

The Effect Of Cancer Cachexia Severity And Eccentric Muscle Contractions On Selected Myofiber Metabolic Properties In Mouse Skeletal Muscle, Joshua Earl Mangum

Theses and Dissertations

Cancer cachexia is a complex syndrome that induces skeletal muscle wasting and dysregulation of skeletal muscle metabolism. Alterations in area of myofibers and myofiber metabolic properties can significantly impact the function of skeletal muscle. The purpose of this study was to examine the effect of cachexia severity and resistance exercise training on frequency and area of selected myofiber metabolic characteristics during cachexia-induced myofiber atrophy. Male ApcMin/+ (Min) mice were studied during the progression of cachexia (16-20 weeks of age) and stratified into groups based on the severity of cachexia. For the second study, male Min mice performed resistance exercise (RE) …

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