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36,659 full-text articles. Page 808 of 810.

Habitat Correlates Of Jaguar Kill-Sites Of Cattle In Northeastern Sonora, Mexico, Octavio C. Rosas-Rosas, Louis C. Bender, Raul Valdez 2010 Campus San Luis Potosi

Habitat Correlates Of Jaguar Kill-Sites Of Cattle In Northeastern Sonora, Mexico, Octavio C. Rosas-Rosas, Louis C. Bender, Raul Valdez

Human–Wildlife Interactions

Predation on cattle by the endangered jaguar (Panthera onca) can be a serious ecological and economic conflict. We investigated habitat characteristics of kill sites of cattle in Sonora, Mexico, from 1999 to 2004 to see whether habitat management or cattle distribution could be used as effective nonlethal methods to limit predation. Kill-sites were positively associated with oak, semitropical thornscrub, and xeric thornscrub vegetation types, whereas they were negatively associated with upland mesquite. Sites of cattle kills were also positively associated with proximity to permanent water sources and roads. A model including these relationships fi t kill locations well (AUC = 0 ...


Improved Methods For Deterring Cliff Swallow Nesting On Highway Structures, Michael Delwiche, Robert W. Coates, W. Paul Gorenzel, Terrell P. Salmon 2010 University of California, Davis

Improved Methods For Deterring Cliff Swallow Nesting On Highway Structures, Michael Delwiche, Robert W. Coates, W. Paul Gorenzel, Terrell P. Salmon

Human–Wildlife Interactions

Cliff swallows (Petrochelidon pyrrhonota) are migratory birds that frequently nest on highway structures, such as bridges. Because cliff swallows are protected by the Migratory Bird Treaty Act of 1918, nesting control methods must not harm cliff swallows or disturb active nests. This can cause delays for maintenance divisions of state departments of transportation, resulting in additional cost. In a multiyear project, we evaluated the effects of bioacoustic deterrents and bridge surface modifications on nesting behavior of cliff swallows. We used cliff swallow alarm and distress calls as bioacoustic deterrents (hereafter, broadcast calls [BC]) because they previously had been shown to ...


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.


Development And Application Of Bovine And Porcine Oligonucleotide Arrays With Protein-Based Annotation, John R. Garbe, Christine G. Elsik, Eric Antoniou, James M. Reecy, Karl J. Clark, Anand Venkatraman, Jae-Woo Kim, Robert D. Schnabel, C. Michael Dickens, Russell D. Wolfinger, Scott C. Fahrenkrug, Jeremy F. Taylor 2010 University of Minnesota - Twin Cities

Development And Application Of Bovine And Porcine Oligonucleotide Arrays With Protein-Based Annotation, John R. Garbe, Christine G. Elsik, Eric Antoniou, James M. Reecy, Karl J. Clark, Anand Venkatraman, Jae-Woo Kim, Robert D. Schnabel, C. Michael Dickens, Russell D. Wolfinger, Scott C. Fahrenkrug, Jeremy F. Taylor

Animal Science Publications

The design of oligonucleotide sequences for the detection of gene expression in species with disparate volumes of genome and EST sequence information has been broadly studied. However, a congruous strategy has yet to emerge to allow the design of sensitive and specific gene expression detection probes. This study explores the use of a phylogenomic approach to align transcribed sequences to vertebrate protein sequences for the detection of gene families to design genomewide 70-mer oligonucleotide probe sequences for bovine and porcine. The bovine array contains 23,580 probes that target the transcripts of 16,341 genes, about 72% of the total ...


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 ...


Short Communication. Snp Analyses Of The 5ht1r And Stat Genes In Pacific White Shrimp, Litopenaeus Vannamei, S. Martin Marti, Suneel K. Onteru, Zhi-Qiang Du, Max F. Rothschild 2010 Universitat de Lleida

Short Communication. Snp Analyses Of The 5ht1r And Stat Genes In Pacific White Shrimp, Litopenaeus Vannamei, S. Martin Marti, Suneel K. Onteru, Zhi-Qiang Du, Max F. Rothschild

Animal Science Publications

Shrimp aquaculture is one of the growing animal industries. Breeding stocks with high disease-resistance and growth rate are of particular interest to shrimp breeders. Association studies are useful to find genetic markers for marker assisted selection of animals. Using six Litopenaeus vannamei individuals from a sample population, four single nucleotide polymorphisms (SNPs) were found in the 5HT1R (5-hydroxytryptamine receptor1) gene and one SNP in the STAT (signal transducer and activator of transcription) gene. However, the SNP in the STAT gene was homozygous in a different population used for association analyses. The association analyses revealed that allele C of two SNPs ...


The Differential Roles Of D-Pax2 Variants In Regulating Drosophila Eye And Bristle Development, Colin J. O’Shea 2010 Colby College

The Differential Roles Of D-Pax2 Variants In Regulating Drosophila Eye And Bristle Development, Colin J. O’Shea

Honors Theses

The ability to appropriately interact with the environment is crucial to an organism’s survival. The establishment of functional sensory systems, such as the bristles and eyes in Drosophila, is a critical event during the development of the organism. The transcription factor D Pax2 is involved in the differentiation of the shaft and glial cells in the developing bristle (Kavaler et al., Dev, 126:2261-2272, 1999) and of the cone and primary pigment cells in the developing eye (Fu and Noll, Genes Dev, 11:389-405, 1997). How D-Pax2 contributes to distinct differentiative pathways in different cell types is not known ...


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 ...


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 ...


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 ...


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.


Carbohydrate Sources And Maximizing The Use Of Supplemental Amino Acids In Diets For Weanling Pigs, Victor D. Naranjo 2010 Louisiana State University and Agricultural and Mechanical College

Carbohydrate Sources And Maximizing The Use Of Supplemental Amino Acids In Diets For Weanling Pigs, Victor D. Naranjo

LSU Doctoral Dissertations

The objectives of this research were 1) to determine the effect of replacing dried whey (DW) with milk chocolate product (MCP), dried whey permeate (DWP) with candy oats (CO), and spray-dried plasma protein (SDPP) with a novel swine nutritional supplement (SNS) on growth performance of weanling pigs, and 2) to determine the maximum level of supplemental L-Lys, along with DL-Met, L-Thr, and L-Trp that can be added in diets for 6- to 12 and 13- to 23-kg pigs. Three experiments were conducted to compare the feeding value of MCP (20% lactose and 60% sugars) and DW (70% lactose). Results from ...


Biogeography Of The American Pika (Ochotona Princeps) In Oregon And Southern Washington : Illuminating Genetic Relationships Among Disjunct Populations, George Washington Batten III 2010 Portland State University

Biogeography Of The American Pika (Ochotona Princeps) In Oregon And Southern Washington : Illuminating Genetic Relationships Among Disjunct Populations, George Washington Batten Iii

Dissertations and Theses

The American pika (Ochotona princeps) finds moderately warm temperatures (>25°C) lethally stressful, and at the end of the last Ice Age 10,000 years ago was forced to disperse to cooler, "sky island" mountaintops where they are almost exclusively found today. Thirty six subspecies are recognized, all established using morphological characters, and it is uncertain whether these subspecies' designations are corroborated by genetic analyses. This study elucidates three hypotheses regarding populations in Oregon and southern Washington: 1) O. p. fumosa constitutes a subspecies distinct form O. p. brunnescens, 2) the Columbia River constitutes a barrier to gene flow giving ...


Migratory Shorebird Ecology In The Hunter Estuary, Sourth-Eastern Australia, Jennifer Spencer 2010 Australian Catholic University

Migratory Shorebird Ecology In The Hunter Estuary, Sourth-Eastern Australia, Jennifer Spencer

Theses

Migratory shorebirds inhabit the shorelines of rivers, wetlands, oceans and lakes, where they need to rest and feed during their non-breeding seasons to prepare for their annual migrations to breeding grounds in the Arctic. Along their flyways many non-breeding and stop-over sites are under pressure from coastal developments, disturbance, global sea level rise and water resource development. In this thesis I investigated how migratory shorebirds responded to habitat loss in the Hunter estuary, a non-breeding site in south-eastern Australia, and how they used remaining estuarine habitats. The Hunter estuary is a wetland of international importance but has a long history ...


Cell Extract-Based Reprogramming Of Somatic Cells, Laura Whitney Coley 2010 Louisiana State University and Agricultural and Mechanical College

Cell Extract-Based Reprogramming Of Somatic Cells, Laura Whitney Coley

LSU Master's Theses

The differentiation potential of adult stem cells (ASC) has long been thought to be limited to cell lineages present in the organ from which they are derived; however, several studies have challenged this notion by demonstrating that some ASC exhibit a remarkably high degree of plasticity. Unlike terminally differentiated somatic cells, the less differentiated state of ASC can assume the functional phenotypes and expression profiles of cells unique to other tissues. The expansive repertoire of differentiation potential exhibited by ASC suggests these cells possess characteristics similar to pluripotent cells, including epigenomic regulatory pattern. Therefore, ASC may be better equipped for ...


Influence Of Low Homogenization Pressures On Acid Tolerance, Bile Tolerance, Protease Activity, And Growth Characteristics Of Lactobacillus Delbrueckii Ssp Bulgaricus Lb-12, Streptococcus Salivarius Ssp Thermophilus St-M5, And Lactobacillus Acidophilus La-K, Tanuja Muramalla 2010 Louisiana State University and Agricultural and Mechanical College

Influence Of Low Homogenization Pressures On Acid Tolerance, Bile Tolerance, Protease Activity, And Growth Characteristics Of Lactobacillus Delbrueckii Ssp Bulgaricus Lb-12, Streptococcus Salivarius Ssp Thermophilus St-M5, And Lactobacillus Acidophilus La-K, Tanuja Muramalla

LSU Master's Theses

Lactobacillus delbrueckii ssp bulgaricus LB-12, Streptococcus salivarius ssp thermophilus ST-M5 and Lactobacillus acidophilus LA-K are dairy cultures widely used in the fermentation of dairy products. Homogenization is an essential process in dairy industry for making several products. High homogenization pressures (>50 MPa) are used to create stable emulsion, inactivate the pathogens and increase the protease activity of dairy cultures. Sparse literature is available on the influence of low homogenization pressures, and their effect on beneficial characteristics of dairy cultures is not well understood. The objective of this study was to determine the effect of low homogenization pressures on acid tolerance ...


Effects Of Meal Timing On Anabolic Hormone Status And Energy Metabolism In Neonatal Dairy Calves, Katherine Claire Simon 2010 Louisiana State University and Agricultural and Mechanical College

Effects Of Meal Timing On Anabolic Hormone Status And Energy Metabolism In Neonatal Dairy Calves, Katherine Claire Simon

LSU Master's Theses

Twelve neonatal Holstein bull calves (38.52 ± 5.87 kg) were fed milk replacer at a fixed or varied meal time to determine the effects on metabolic hormone secretion, average daily intake, growth, and energy metabolism. Body weights were measured every two weeks from birth to 8 weeks. Rumen fluid was collected every two weeks from week 2 through 8. Serial blood collections were conducted every two weeks from week 2 through 8. Blood was collected, beginning at 0530, at 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, and 150 minutes. Plasma was analyzed for ghrelin, leptin, growth ...


Laser-Assisted Zona Pellucida Hatching Of Frozen-Thawed In Vivo-Produced Bovine Embryos, Mindy Kaye Chiasson 2010 Louisiana State University and Agricultural and Mechanical College

Laser-Assisted Zona Pellucida Hatching Of Frozen-Thawed In Vivo-Produced Bovine Embryos, Mindy Kaye Chiasson

LSU Master's Theses

Incomplete zona hatching or failure of the zona to rupture compromises post-transfer embryo viability and conceptus development. Assisted hatching prior to the transfer of frozen-thawed bovine embryos has been proposed as a means to increase recipient pregnancy rates. The objective of this study was to determine if laser-assisted hatching would improve in vivo-produced frozen-thawed bovine embryo hatching and pregnancy rates. In Experiment I,II and III frozen direct-transfer embryos received either two a or three symmetrical rents at either 40% or 80% through the outer zona surface using the Hamilton Thorne XYClone® (Hamilton Thorne Biosciences) diode laser at 90% power ...


Dopaminergic Input To The Equine Pituitary: Seasonal And Estradiol Effects, Sarah Case Clavier 2010 Louisiana State University and Agricultural and Mechanical College

Dopaminergic Input To The Equine Pituitary: Seasonal And Estradiol Effects, Sarah Case Clavier

LSU Master's Theses

Two experiments were conducted to study the effects of season and estradiol administration on dopaminergic input to the equine adenohypophysis. Experiment 1 began in the spring with 8 mares and 8 stallions and was repeated again in the summer, fall, and winter. Horses were given sulpiride injections of eight incremental doses (0.25 to 32 µg/kg BW). Within each group of 8 horses, half received the sulpiride in an increasing manner, the other half in a decreasing manner. Prolactin concentrations peaked in the first 15 to 30 min in all horses in all seasons. Prolactin areas under the curve ...


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