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Assessment Of Selenium And Atrazine Exposure And Effects To Wildlife At The North Platte National Wildlife Refuge, Scottsbluff, Nebraska, Matthew S. Schwarz, Christina D. Lydick 2010 U.S. Fish and Wildlife Service

Assessment Of Selenium And Atrazine Exposure And Effects To Wildlife At The North Platte National Wildlife Refuge, Scottsbluff, Nebraska, Matthew S. Schwarz, Christina D. Lydick

US Fish & Wildlife Publications

This study evaluated selenium and atrazine exposure and effects to fish and wildlife at North Platte National Wildlife Refuge (Refuge) in Scotts Bluff County, Nebraska. Atrazine was detected in 2 of 54 water samples and at low concentrations that are not of concern. However, concentrations of selenium and strontium exceeded toxicity guidelines in water, sediment, invertebrates, whole-body fish and wood duck eggs. Concentrations of selenium in water at Refuge sites frequently exceeded a 2 μg/L total recoverable threshold for selenium bioaccumulation and were greatest at Stateline Island (9.7 μg/L) and Little Lake Alice (24 μg/L). In ...


Skeletal Muscle Stem Cells From Animals I. Basic Cell Biology, Michael V. Dodson, Gary J. Hausman, LeLuo Guan, Min Du, Theodore P. Rasmussen, Sylvia P. Poulos, Priya Mir, Werner G. Bergen, Melinda E. Fernyhough, Douglas C. McFarland, Robert P. Rhoads, Beatrice Soret, James M. Reecy, Sandra G. Velleman, Zhihua Jiang 2010 Washington State University

Skeletal Muscle Stem Cells From Animals I. Basic Cell Biology, Michael V. Dodson, Gary J. Hausman, Leluo Guan, Min Du, Theodore P. Rasmussen, Sylvia P. Poulos, Priya Mir, Werner G. Bergen, Melinda E. Fernyhough, Douglas C. Mcfarland, Robert P. Rhoads, Beatrice Soret, James M. Reecy, Sandra G. Velleman, Zhihua Jiang

Animal Science Publications

Skeletal muscle stem cells from food-producing animals are of interest to agricultural life scientists seeking to develop a better understanding of the molecular regulation of lean tissue (skeletal muscle protein hypertrophy) and intramuscular fat (marbling) development. Enhanced understanding of muscle stem cell biology and function is essential for developing technologies and strategies to augment the metabolic efficiency and muscle hypertrophy of growing animals potentially leading to greater efficiency and reduced environmental impacts of animal production, while concomitantly improving product uniformity and consumer acceptance and enjoyment of muscle foods.


Lipid Metabolism, Adipocyte Depot Physiology And Utilization Of Meat Animals As Experimental Models For Metabolic Research, Michael V. Dodson, Gary J. Hausman, LeLuo Guan, Min Du, Theodore P. Rasmussen, Sylvia P. Poulos, Priya Mir, Werner G. Bergen, Melinda E. Fernyhough, Douglas C. McFarland, Robert P. Rhoads, Beatrice Soret, James M. Reecy, Sandra G. Velleman, Zhihua Jiang 2010 Washington State University

Lipid Metabolism, Adipocyte Depot Physiology And Utilization Of Meat Animals As Experimental Models For Metabolic Research, Michael V. Dodson, Gary J. Hausman, Leluo Guan, Min Du, Theodore P. Rasmussen, Sylvia P. Poulos, Priya Mir, Werner G. Bergen, Melinda E. Fernyhough, Douglas C. Mcfarland, Robert P. Rhoads, Beatrice Soret, James M. Reecy, Sandra G. Velleman, Zhihua Jiang

Animal Science Publications

Meat animals are unique as experimental models for both lipid metabolism and adipocyte studies because of their direct economic value for animal production. This paper discusses the principles that regulate adipogenesis in major meat animals (beef cattle, dairy cattle, and pigs), the definition of adipose depot-specific regulation of lipid metabolism or adipogenesis, and introduces the potential value of these animals as models for metabolic research including mammary biology and the ontogeny of fatty livers.


Allied Industry Approaches To Alter Intramuscular Fat Content And Composition In Beef Animals, Michael V. Dodson, Zhihua Jiang, Jie Chen, Gary J. Hausman, LeLuo Guan, Jan Novakofski, David P. Thompson, Carol L. Lorenzen, Melinda E. Fernyhough, Priya Mir, James M. Reecy 2010 Washington State University

Allied Industry Approaches To Alter Intramuscular Fat Content And Composition In Beef Animals, Michael V. Dodson, Zhihua Jiang, Jie Chen, Gary J. Hausman, Leluo Guan, Jan Novakofski, David P. Thompson, Carol L. Lorenzen, Melinda E. Fernyhough, Priya Mir, James M. Reecy

Animal Science Publications

Biochemical and biophysical research tools are used to define the developmental dynamics of numerous cell lineages from a variety of tissues relevant to meat quality. With respect to the adipose cell lineage, much of our present understanding of adipogenesis and lipid metabolism was initially determined through the use of these methods, even though the in vitro or molecular environments are far removed from the tissues of meat animals. This concise review focuses on recent cellular and molecular biology-related research with adipocytes, and how the research might be extended to the endpoint of altering red meat quality. Moreover, economic and policy ...


A Calcitonin Receptor (Calcr) Single Nucleotide Polymorphism Is Associated With Growth Performance And Bone Integrity In Response To Dietary Phosphorus Deficiency, L. S. Alexander, A. Qu, Sara A. Cutler, A. Mahajan, Max F. Rothschild, W. Cai, Jack C. Dekkers, Chad H. Stahl 2010 North Carolina State University at Raleigh

A Calcitonin Receptor (Calcr) Single Nucleotide Polymorphism Is Associated With Growth Performance And Bone Integrity In Response To Dietary Phosphorus Deficiency, L. S. Alexander, A. Qu, Sara A. Cutler, A. Mahajan, Max F. Rothschild, W. Cai, Jack C. Dekkers, Chad H. Stahl

Animal Science Publications

Although concerns over the environmental impact of excess P in the excreta from pig production and governmental regulations have driven research toward reducing dietary supplementation of P to swine diets for over a decade, recent dramatic increases in feed costs have further motivated researchers to identify means to further reduce dietary P supplementation. We have demonstrated that genetic background impacts P utilization in young pigs and have identified genetic polymorphisms in several target genes related to mineral utilization. In this study, we examined the impact of a SNP in the calcitonin receptor gene (CALCR) on P utilization in growing pigs ...


Pig Genome Sequence - Analysis And Publication Strategy, Alan L. Archibald, Lars Bolund, Carol Churcher, Merete Fredholm, Martien A. M. Groenen, Barbara Harlizius, Kyung-Tai Lee, Denis Milan, Jane Rogers, Max F. Rothschild, Hirohide Uenishi, Jun Wang, Lawrence B. Schook 2010 University of Edinburgh

Pig Genome Sequence - Analysis And Publication Strategy, Alan L. Archibald, Lars Bolund, Carol Churcher, Merete Fredholm, Martien A. M. Groenen, Barbara Harlizius, Kyung-Tai Lee, Denis Milan, Jane Rogers, Max F. Rothschild, Hirohide Uenishi, Jun Wang, Lawrence B. Schook

Animal Science Publications

Background: The pig genome is being sequenced and characterised under the auspices of the Swine Genome Sequencing Consortium. The sequencing strategy followed a hybrid approach combining hierarchical shotgun sequencing of BAC clones and whole genome shotgun sequencing. Results: Assemblies of the BAC clone derived genome sequence have been annotated using the Pre-Ensembl and Ensembl automated pipelines and made accessible through the Pre-Ensembl/Ensembl browsers. The current annotated genome assembly (Sscrofa9) was released with Ensembl 56 in September 2009. A revised assembly (Sscrofa10) is under construction and will incorporate whole genome shotgun sequence (WGS) data providing > 30× genome coverage. The WGS ...


Effect Of Polymorphisms In Candidate Genes On Reproduction Traits In Finnish Pig Populations, A. I. Sironen, P. Uimari, Timo Serenius, B. Mote, Max F. Rothschild, J. Vilkki 2010 Agrifood Research Finland

Effect Of Polymorphisms In Candidate Genes On Reproduction Traits In Finnish Pig Populations, A. I. Sironen, P. Uimari, Timo Serenius, B. Mote, Max F. Rothschild, J. Vilkki

Animal Science Publications

Reproduction traits play an important role in economically viable piglet production and are closely related to the quality and length of the productive life of the sow. A increased removal rate of young sows is undesirable not only because of the associated financial penalties incurred, but also because of ethical concerns. Candidate genes and gene pathways have been identified for fertility in model species, and recent studies have provided evidence that polymorphisms within these genes are associated with reproduction traits in American Yorkshire/Large White and Landrace populations. In this study we evaluated the impact of single polymorphisms (n = 7 ...


Pigs, Goats And Chickens For Rural Development: Small Holder Farmer’S Experience In Uganda, Agatha Ampaire, Max F. Rothschild 2010 Iowa State University

Pigs, Goats And Chickens For Rural Development: Small Holder Farmer’S Experience In Uganda, Agatha Ampaire, Max F. Rothschild

Animal Science Publications

Rearing small livestock has been established as a promising pathway out of poverty for rural farmers in developing countries. In this study personal interviews were conducted with 113 owners of pigs, goats and chickens in Uganda to find out why the farmers choose to rear these animals, what opportunities existed and what challenges/limitations they faced regarding livelihood improvement. The data were analyzed using descriptive statistics including frequency tables to summarize the data and cross tabulations to determine relationships between variables. Relationships between variables were examined using Chi square tests.

The major reasons given for why pigs were reared were ...


Srebp Pathway Genes As Candidate Markers In Country Ham Production, Benedicte Renaville, Kimberly L. Glenn, Benny E. Mote, Bin Fan, Kenneth J. Stalder, Max F. Rothschild 2010 Università di Udine

Srebp Pathway Genes As Candidate Markers In Country Ham Production, Benedicte Renaville, Kimberly L. Glenn, Benny E. Mote, Bin Fan, Kenneth J. Stalder, Max F. Rothschild

Animal Science Publications

Country hams are dry-cured products from the Southeastern region of the USA. This high value product requires quality fresh meat to avoid later processing problems. The marker SREBF1 is a transcription factor involved in the regulation of fatty acid synthesis and anti-oxidative enzyme transcription. The SREBF1 gene and its regulators, SCAP and MBTPS1, were investigated for associations with several meat quality traits in country hams. After single nucleotide polymorphism (SNP) identification, PCR-RFLP tests were designed for one polymorphism in each of the three investigated genes. Meat quality and physical traits were collected on 299 fresh hams. Significant associations were found ...


Genetic Diversity Among Plasmodium Falciparum Field Isolates In Pakistan Measured With Pcr Genotyping Of The Merozoite Surface Protein 1 And 2, Najia Ghanchi, andreas Martensson, Johan Ursing, Sana Jafri, Sandor Bereczky, Rabia Hussain, Mohammad Asim Beg 2010 Agha Khan University

Genetic Diversity Among Plasmodium Falciparum Field Isolates In Pakistan Measured With Pcr Genotyping Of The Merozoite Surface Protein 1 And 2, Najia Ghanchi, Andreas Martensson, Johan Ursing, Sana Jafri, Sandor Bereczky, Rabia Hussain, Mohammad Asim Beg

Department of Pathology and Laboratory Medicine

Background:The genetic diversity of Plasmodium falciparum has been extensively studied in various parts of the world. However, limited data are available from Pakistan. This study aimed to establish molecular characterization of P. falciparum field isolates in Pakistan measured with two highly polymorphic genetic markers, i.e. the merozoite surface protein 1 (msp-1) and 2 (msp-2).
Methods:Between October 2005 and October 2007, 244 blood samples from Patients with symptomatic blood-slide confirmed P. falciparum mono-infections attending the Aga Khan University Hospital, Karachi, or its collection units located in Sindh and Baluchistan provinces, Pakistan were collected. The genetic diversity of P ...


Is It A Jungle Out There? Meat Packing, Immigrants, And Rural Communities, Georgeanne Artz, Rebecca Jackson, Peter Orazem 2010 University of Missouri

Is It A Jungle Out There? Meat Packing, Immigrants, And Rural Communities, Georgeanne Artz, Rebecca Jackson, Peter Orazem

Economics Publications

The shift of the U.S. meat packing industry from urban to rural areas has generated controversy regarding potential social and economic costs of meat packing plants on their host communities. This study uses media comments to identify the most prominent controversies regarding meat packing, its largely immigrant workforce, and rural communities. We find that the industry has impacted the demographic composition of rural communities and their schools, but find no evidence that the industry increases per capita government expenditures. Our results suggest rural communities trade off the economic benefits of hosting these large employers against the costs of accommodating ...


Tariff-Rate Quotas, Rent-Shifting And The Selling Of Domestic Access, Bruno Larue, Harvey E. Lapan, Jean-Philippe Gervais 2010 Universite Laval

Tariff-Rate Quotas, Rent-Shifting And The Selling Of Domestic Access, Bruno Larue, Harvey E. Lapan, Jean-Philippe Gervais

Economics Publications

Tariff-rate quotas (TRQs) have replaced quotas at the end of the Uruguay Round. We analyze TRQs when a foreign firm competes against a domestic firm in the latter's market. Our benchmark is the strategic rent-shifting tariff. We show that the domestic price-equivalent TRQ is a better instrument welfare-wise, as it can extract all of the rents from the foreign firm. We show that different pairs of within-quota tariff and quota can support full rent extraction. The implication is that reduction of the former and enlargement of the latter, holding the above-quota tariff constant, may have no liberalizing effects. The ...


Food And Consumer Economics, Laurian Unnevehr, James Eales, Helen Jensen, Jayson Lusk, Jill McCluskey, Jean Kinsey 2010 United States Department of Agriculture

Food And Consumer Economics, Laurian Unnevehr, James Eales, Helen Jensen, Jayson Lusk, Jill Mccluskey, Jean Kinsey

Economics Publications

Agricultural economists first carried out demand studies in order to understand determinants of farm prices and incomes. The shift to a focus on consumer welfare began with studies of the role of food and food assistance in standards of living. Now the profession is more concerned with how information and quality attributes influence consumer behavior. Agricultural economists’ empirical work in this field has informed the development of household production theory, hedonic price theory, definitions of poverty thresholds, complete demand systems, and survey and experimental techniques to elicit preferences.


Consumer Demand For Cholesterol-Lowering Enhanced Margarine Products, Sonya K. Huffman, Helen H. Jensen, Abebayehu Tegene 2010 Iowa State University

Consumer Demand For Cholesterol-Lowering Enhanced Margarine Products, Sonya K. Huffman, Helen H. Jensen, Abebayehu Tegene

Economics Publications

The development and introduction of nutritionally enhanced margarines in the mid-1990s offered the opportunity to improve public health through the use of a cholesterol-lowering food product. Product approval in the USA followed that in Europe. The public approval and market acceptance of the nutritionally enhanced product illustrate the challenges faced by offering improved health attributes through food product innovation. Although the product Benecol received public endorsement and was relatively quickly accepted by Finnish consumers, public acceptance has been slower in the USA. Our study traces consumer response to the introduction of nutritionally enhanced margarine products in the US market. Household ...


Incorporation Of Europium (Iii) Coordination Compounds Into Silica Microspheres, Johnathan Nathanael Brantly 2010 Western Kentucky University

Incorporation Of Europium (Iii) Coordination Compounds Into Silica Microspheres, Johnathan Nathanael Brantly

Mahurin Honors College Capstone Experience/Thesis Projects

The unique optical properties of silica microspheres and lanthanoid elements present the opportunity to adapt silica microspheres containing rare earth elements for novel optical applications. The research demonstrates the first example of incorporating insoluble lanthanoid coordination compounds into silica microspheres. The work explored the controlled synthesis of silica microspheres and the reaction conditions under which lanthanoid complexes can be incorporated into the microspheres. The environment of the coordinated lanthanoid ions before and after incorporation into silica microspheres was probed using spectroflurophotometry. The surface morphology of silica microspheres was characterized using atomic force microscopy (AFM) and scanning electron microscopy (SEM). The ...


Molecular Tools For Understanding The Population Genetic Effects Of Habitat Restoration On Butterflies, Joseph R. Marquardt 2010 Western Kentucky University

Molecular Tools For Understanding The Population Genetic Effects Of Habitat Restoration On Butterflies, Joseph R. Marquardt

Mahurin Honors College Capstone Experience/Thesis Projects

No abstract provided.


Proteases As Insecticidal Agents, Robert L. Harrison, Bryony C. Bonning 2010 United States Department of Agriculture

Proteases As Insecticidal Agents, Robert L. Harrison, Bryony C. Bonning

Entomology Publications

Proteases from a variety of sources (viruses, bacteria, fungi, plants, and insects) have toxicity towards insects. Some of these insecticidal proteases evolved as venom components, herbivore resistance factors, or microbial pathogenicity factors, while other proteases play roles in insect development or digestion, but exert an insecticidal effect when over-expressed from genetically engineered plants or microbial pathogens. Many of these proteases are cysteine proteases, although insect-toxic metalloproteases and serine proteases have also been examined. The sites of protease toxic activity range from the insect midgut to the hemocoel (body cavity) to the cuticle. This review discusses these insecticidal proteases along with ...


Video-Tracking And On-Plant Tests Show Cry1ab Resistance Influences Behavior And Survival Of Neonate Ostrinia Nubilalis Following Exposure To Bt Maize, Jarrad R. Prasifka, Richard L. Hellmich, Andre LB Crespo, Blair D. Siegfried, David W. Onstad 2010 United States Department of Agriculture

Video-Tracking And On-Plant Tests Show Cry1ab Resistance Influences Behavior And Survival Of Neonate Ostrinia Nubilalis Following Exposure To Bt Maize, Jarrad R. Prasifka, Richard L. Hellmich, Andre Lb Crespo, Blair D. Siegfried, David W. Onstad

Entomology Publications

To examine how resistance to Bacillus thuringiensis (Bt) toxins influences movement and survival of European corn borer (Ostrinia nubilalis [Hübner]) neonates, the responses of Cry1Ab-resistant , -susceptible, and hybrid (F1) larvae were examined using two different techniques. First, using an automated video-tracking system, aspects of O. nubilalis movement were quantified in the presence of artificial diet incorporating 50% non-Bt or insect-resistant Cry1Ab maize tissue. Second, O. nubilalis dispersal and survival were measured 48–72 h after hatching on a Cry1Ab maize plant surrounded by two non-Bt maize plants. Video tracking indicated the presence of Cry1Ab tissue increased the total distance moved ...


Ecological Niche Modeling Of Potential West Nile Virus Vector Mosquito Species In Iowa, Scott R. Larson, John P. DeGroote, Lyric Bartholomay, Ramathan Sugumaran 2010 University of Northern Iowa

Ecological Niche Modeling Of Potential West Nile Virus Vector Mosquito Species In Iowa, Scott R. Larson, John P. Degroote, Lyric Bartholomay, Ramathan Sugumaran

Entomology Publications

Ecological niche modeling (ENM) algorithms, Maximum Entropy Species Distribution Modeling (Maxent) and Genetic Algorithm for Rule-set Prediction (GARP), were used to develop models in Iowa for three species of mosquito — two significant, extant West Nile virus (WNV) vectors (Culex pipiens L and Culex tarsalis Coquillett (Diptera: Culicidae)), and the nuisance mosquito, Aedes vexans Meigen (Diptera: Culicidae), a potential WNV bridge vector. Occurrence data for the three mosquito species from a state-wide arbovirus surveillance program were used in combination with climatic and landscape layers. Maxent successfully created more appropriate niche models with greater accuracy than GARP. The three Maxent species' models ...


Sequencing Of Culex Quinquefasciatus Establishes A Platform For Mosquito Comparative Genomics, Peter Arensburger, Karine Megy, Robert M. Waterhouse, Jenica Abrudan, Paolo Amedeo, Beatriz Antelo, Lyric Bartholomay, Shelby Bidwell, Elizabet Caler, Francisco Camara, Corey L. Campbell, Kathryn S. Campbell, Claudio Casola, Marta T. Castro, Ishwar Chandramouliswaran, Sinead B. Chapman, Scott Christley, Javier Costas, Eric Eisenstadt, Cedric Feshotte, Claire Fraser-Liggett, Roderic Guigo, Brian Haas, Martin Hammond, Bill S. Hansson, Janet Hemingway, Sharon Hill, Clint Howarth, Rickard Ignell, Ryan C. Kennedy, Chinnappa D. Kodira, Neil F. Lobo, Chunhong Mao, George F. Mayhew, Kristin Michel, Akio Mori, Nannan Liu, Horacio Naveira, Vishvanath Nene, Nam Nguyen, Matthew D. Pearson, Ellen J. Pritham, Daniela Puiu, Yumin Qi, Hilary Ranson, Jose M.C. Ribeiro, Hugh M. Roberston, David W. Severson, Martin Shumay, Mario Stanke, Robert L. Strausberg, Cheng Sun, Granger Sutton, Zhijiang (Jake) Tu, Jose M. C. Tubio, Maria F. Unger, Dana L. Vanlandingham, Albert J. Vilella, Owen White, Jared R. White, Charles S. Wondji, Jennifer Wortman, Evgeny M. Zdobnov, Bruce Birren, Bruce M. Christensen, Frank H. Collins, Anthony Cornel, George Dimopoulos, Linda I. Hannick, Stephen Higgs, Gregory C. Lanzaro, Daniel Lawson, Norman H. Lee, Marc A.T. Muskavitch, Alexander S. Raikhel, Peter W. Atkinson 2010 University of California - Riverside

Sequencing Of Culex Quinquefasciatus Establishes A Platform For Mosquito Comparative Genomics, Peter Arensburger, Karine Megy, Robert M. Waterhouse, Jenica Abrudan, Paolo Amedeo, Beatriz Antelo, Lyric Bartholomay, Shelby Bidwell, Elizabet Caler, Francisco Camara, Corey L. Campbell, Kathryn S. Campbell, Claudio Casola, Marta T. Castro, Ishwar Chandramouliswaran, Sinead B. Chapman, Scott Christley, Javier Costas, Eric Eisenstadt, Cedric Feshotte, Claire Fraser-Liggett, Roderic Guigo, Brian Haas, Martin Hammond, Bill S. Hansson, Janet Hemingway, Sharon Hill, Clint Howarth, Rickard Ignell, Ryan C. Kennedy, Chinnappa D. Kodira, Neil F. Lobo, Chunhong Mao, George F. Mayhew, Kristin Michel, Akio Mori, Nannan Liu, Horacio Naveira, Vishvanath Nene, Nam Nguyen, Matthew D. Pearson, Ellen J. Pritham, Daniela Puiu, Yumin Qi, Hilary Ranson, Jose M.C. Ribeiro, Hugh M. Roberston, David W. Severson, Martin Shumay, Mario Stanke, Robert L. Strausberg, Cheng Sun, Granger Sutton, Zhijiang (Jake) Tu, Jose M. C. Tubio, Maria F. Unger, Dana L. Vanlandingham, Albert J. Vilella, Owen White, Jared R. White, Charles S. Wondji, Jennifer Wortman, Evgeny M. Zdobnov, Bruce Birren, Bruce M. Christensen, Frank H. Collins, Anthony Cornel, George Dimopoulos, Linda I. Hannick, Stephen Higgs, Gregory C. Lanzaro, Daniel Lawson, Norman H. Lee, Marc A.T. Muskavitch, Alexander S. Raikhel, Peter W. Atkinson

Entomology Publications

Culex quinquefasciatus (the southern house mosquito) is an important mosquito vector of viruses such as West Nile virus and St. Louis encephalitis virus, as well as of nematodes that cause lymphatic filariasis. C. quinquefasciatus is one species within the Culex pipiens species complex and can be found throughout tropical and temperate climates of the world. The ability of C. quinquefasciatus to take blood meals from birds, livestock, and humans contributes to its ability to vector pathogens between species. Here, we describe the genomic sequence of C. quinquefasciatus: Its repertoire of 18,883 protein-coding genes is 22% larger than that of ...


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