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- Animal Sciences (25)
- Plant Sciences (16)
- Zoology (14)
- Agronomy and Crop Sciences (13)
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- Botany (12)
- Horticulture (12)
- Ecology and Evolutionary Biology (9)
- Terrestrial and Aquatic Ecology (9)
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- Keyword
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- Arkansas (6)
- Animal health (2)
- Beef cattle production (2)
- Cave fauna (2)
- Cotton (2)
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- Cotton research (2)
- Food science (2)
- Forages and pastures (2)
- Pollution (2)
- Rice (2)
- Water quality monitoring (2)
- Agriculture (1)
- Amino acid (1)
- Baluts (1)
- Beef supply (1)
- Best practices management (1)
- Biodiversity (1)
- Blackberries (1)
- Catfish (1)
- Chicken eggs (1)
- Chickens (1)
- Chilling (1)
- Cooked rice (1)
- Crop (1)
- Crops (1)
- Cultivars (1)
- Drying (1)
- Duck eggs (1)
- Egg quanity (1)
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- Publication
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- Journal of the Arkansas Academy of Science (15)
- Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences (13)
- Arkansas Agricultural Experiment Station Research Series (8)
- Inquiry: The University of Arkansas Undergraduate Research Journal (3)
- Technical Reports (3)
- Publication Type
Articles 1 - 30 of 43
Full-Text Articles in Life Sciences
Upper White River Bmp Implementation Project (Nps Final Report), Paul F. Vendrell, K. F. Steele, M. A. Nelson, R. W. Mcnew
Upper White River Bmp Implementation Project (Nps Final Report), Paul F. Vendrell, K. F. Steele, M. A. Nelson, R. W. Mcnew
Technical Reports
The project objective was to monitor agricultural best management practices implemented to minimize sediment, nutrient, and bacterial impact on water quality of the Upper White River watershed. The project targeted the primary agricultural causes of non-point source nutrient and bacterial pollution in three sub-basins of the White River in the Beaver Lake Watershed. Areas with high animal densities targeted high source areas. High source areas were treated with best management practices (BMP) in an effort to reduce the impact to the White River and Beaver Lake. The predominant BMP implemented was waste management, a component of the farm nutrient management …
Arkansas Animal Science Department Report 2000, Zelpha B. Johnson, D. Wayne Kellogg
Arkansas Animal Science Department Report 2000, Zelpha B. Johnson, D. Wayne Kellogg
Arkansas Agricultural Experiment Station Research Series
Animal Science is very much devoted to youth education and development. During the past year, over 20,000 youth were involved in 4-H livestock projects. Two very successful activities that took place last year were the Mid-American Grassland Evaluation Contest and Livestock Judging Camps. The Grassland Contest is designed to teach students about grassland resource management for livestock and wildlife uses. The contest was held in Cape Girardeau, Missouri. Firstplace honors in the 4-H division went to White County, and second place honors went to Van Buren County. Two Livestock Judging Camps (Fayetteville and Hope) were conducted this past year. A …
Herbicide Evaluation In Arkansas Cotton, 1999, Marilyn Mcclelland, Jim Barrentine, Ken Smith, Nilda Burgos
Herbicide Evaluation In Arkansas Cotton, 1999, Marilyn Mcclelland, Jim Barrentine, Ken Smith, Nilda Burgos
Arkansas Agricultural Experiment Station Research Series
Herbicidal weed control is economically important for production of cotton. Field experiments are conducted annually in Arkansas to evaluate the activity of developmental and commercial herbicides for selective control of weeds in cotton. These experiments serve both industry and Arkansas agriculture by providing information on the selectivity of herbicides still in the developmental stage and by comparing the activity of these new herbicides with that of recommended herbicides.
Soybean Marketing Methods And Characteristics Of Arkansas Grain Handlers, Patricia A. Sauer, Nathan B. Smith, Andrew M. Mckenzie
Soybean Marketing Methods And Characteristics Of Arkansas Grain Handlers, Patricia A. Sauer, Nathan B. Smith, Andrew M. Mckenzie
Research Reports and Research Bulletins
Arkansas producers should acquaint themselves with all marketing methods available to them. Of particular importance is the pervasiveness of price risk within the current economic climate. This bulletin provides insights into the current structure of the grain marketing industry, soybean handler characteristics, and the availability and use of marketing alternatives in Arkansas. Arkansas soybean handlers were surveyed in 1998 to determine the marketing practices of both handlers and producers for the 1996 crop year. Particular emphasis was placed on the types of contracting methods offered by these handlers. Both facility size and corporate structure were found to play a significant …
B.R. Wells Rice Research Studies 1999, R. J. Norman, C. A. Beyrouty
B.R. Wells Rice Research Studies 1999, R. J. Norman, C. A. Beyrouty
Arkansas Agricultural Experiment Station Research Series
No abstract provided.
Trophic Dynamics And Pollution Effects In Cave Springs Cave, Arkansas, G. O. Graening, Arthur V. Brown
Trophic Dynamics And Pollution Effects In Cave Springs Cave, Arkansas, G. O. Graening, Arthur V. Brown
Technical Reports
No abstract provided.
Status Survey Of Aquatic Cave Fauna In Arkansas, G. O. Graening, Arthur V. Brown
Status Survey Of Aquatic Cave Fauna In Arkansas, G. O. Graening, Arthur V. Brown
Technical Reports
No abstract provided.
Horticultural Studies 1999, Michael D. Richardson, John R. Clark
Horticultural Studies 1999, Michael D. Richardson, John R. Clark
Arkansas Agricultural Experiment Station Research Series
Horticultural Studies 1999 is the second edition of a Research Series dedicated to horticultural programs in the University of Arkansas Division of Agriculture and the Dale Bumpers College of Agricultural, Food and Life Sciences. This publication summarizes research, extension, and educational activities that serve horticultural industries and interest groups in Arkansas. The goals of this publication are to provide relevant information to the growers and end-users of horticulture crops in Arkansas and to inform the citizens of Arkansas and the surrounding region of activities related to horticulture.
Arkansas Agriculture Situation And Outlook 2000, Bruce Ahrendsen, Eric Wailes, Bruce Dixon, H. L. Goodwin Jr., Tony Windham
Arkansas Agriculture Situation And Outlook 2000, Bruce Ahrendsen, Eric Wailes, Bruce Dixon, H. L. Goodwin Jr., Tony Windham
Arkansas Agricultural Experiment Station Research Series
Many farmers in Arkansas and other parts of the United States are experiencing financial stress. The purpose of this report is to highlight the situation of Arkansas farmers and to offer an outlook for 2000. The report emphasizes the production, price, income, financial, farmland value, and interest rate outlook for Arkansas farmers and considers the impact of the macroeconomy on agriculture. The contribution of poultry production to the Arkansas agricultural economy is also presented and analyzed.
Arkansas Cotton Variety Test 1999, Fred M. Bourland, N. R. Benson, J. M. Hornbeck, C. D. Capps Jr.
Arkansas Cotton Variety Test 1999, Fred M. Bourland, N. R. Benson, J. M. Hornbeck, C. D. Capps Jr.
Arkansas Agricultural Experiment Station Research Series
The primary aim of the Arkansas Cotton Variety Test is to provide unbiased data regarding the agronomic performance of cotton varieties in the major cotton growing areas in Arkansas. This information helps seed dealers establish marketing strategies and assists producers in choosing varieties to plant. In this way the annual test facilitates the inclusion of new, improved genetic material into Arkansas cotton production. The 1999 test had 67 entries (including 25 transgenic genotypes and 35 first-year entries), which were evaluated at sixsites in eastern Arkansas. The presence of four transgenic and five first-year entries among the top 10 yielding entries …
Field Evaluation Of Herbicides On Small Fruit, Vegetable, And Ornamental Crops, 1999, Ron E. Talbert, Lance A. Schmidt, Mike L. Lovelance, Eric F. Scherder
Field Evaluation Of Herbicides On Small Fruit, Vegetable, And Ornamental Crops, 1999, Ron E. Talbert, Lance A. Schmidt, Mike L. Lovelance, Eric F. Scherder
Arkansas Agricultural Experiment Station Research Series
Growers generally use herbicides to efficiently produce high-quality fruit and vegetables for processing or fresh market sales. Because of the smaller acreage of these crops compared with major field crops, fewer herbicides are registered for use in fruit and vegetable crops than for field crops. Each year, new herbicides are evaluated under Arkansas growing conditions with the objective of improving the herbicide technology for the grower, processor, and ultimately the consumer. This report includes studies on the control of many of the more serious weed problems in important crops of this region, including snapbeans, spinach and other greens, southernpeas, tomatoes, …
Letter From The Dean, Charles J. Scifres
Letter From The Dean, Charles J. Scifres
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Stock Market Reactions To Unfavorable Product Information: A Case Study Of Comments On Beef Safety Made On An Oprah Winfrey Show, Elpida Ormanidou, Michael Thomsen
Stock Market Reactions To Unfavorable Product Information: A Case Study Of Comments On Beef Safety Made On An Oprah Winfrey Show, Elpida Ormanidou, Michael Thomsen
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
This study examines the impact of unfavorable media coverage on the stock market prices of major food companies, an issue of increasing importance to the food industry. The study focuses on the 16 April 1996 Oprah Winfrey Show, a popular television program that raised questions about the safety of the U.S. beef supply. The show resulted in considerable controversy, and some cattle feeders blamed the show for a drop in cattle prices. The focus of this study is on the impact of the program at other stages of the food system. We examined the stock returns of two major beef …
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 1 2000, Several Authors
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 1 2000, Several Authors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Determination Of Chilling Requirement Of Arkansas Thornless Blackberry Cultivars, Chrislyn A. Drake, John R. Clark
Determination Of Chilling Requirement Of Arkansas Thornless Blackberry Cultivars, Chrislyn A. Drake, John R. Clark
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Little research has been done to determine the chilling requirement for blackberry cultivars. However, field observations from areas where fewer hours of chilling occur indicate that ‘Navaho’ requires more hours of chilling than does ‘Arapaho’. The objective of our study was to determine a method for measuring the chilling requirement using whole plants of two blackberry cultivars, Arapaho and Navaho. One-year old, bare-root plants were field-dug on 26 October 1999 and placed in a cold chamber at 3ºC. Ten single-plant replications of each cultivar were removed at 100-hour intervals up to 1000 hours. The plants were potted and placed in …
Feasibility Of Inducing Overlap Immunologic Competence In Gallinaceous Birds With Ascardia Dissimilis And A. Galli, Julie Hamilton, Thomas A. Yazwinski
Feasibility Of Inducing Overlap Immunologic Competence In Gallinaceous Birds With Ascardia Dissimilis And A. Galli, Julie Hamilton, Thomas A. Yazwinski
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Chickens and turkeys are routinely infected with the roundworms Ascaridia galli and A. dissimilis, respectively. The current study was conducted to gather basic information on these worms and to determine whether heterologous infections (chicken worms in turkeys and turkey worms in chickens) would be successful. Chickens and turkeys were obtained at day of hatch, brooded to 7 days of age, and placed in pens (25/pen) according to infection as received at 7 days of age: homologous, heterologous and control (no infection). Bird weights, mortalities, and feed efficiencies were monitored for 3 weeks postinfection, at which time all birds were killed …
Reproductive Behavior Of The Emu, Reema A. Persad, Douglas James, Nicholas B. Anthony
Reproductive Behavior Of The Emu, Reema A. Persad, Douglas James, Nicholas B. Anthony
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Members of a flock of male and female emus were observed in an ethological experiment designed to investigate trends in reproductive behavior exhibited during the North American mating season, which lasts from October to mid-March. Observations were made at dawn, noon, and dusk from December 1999 to mid-March 2000, and the only behaviors that were consistently expressed during these times were pecking, strutting, exclusive, and male and female sexual activities (defined in text). Though statistical significance was found between male strutting behavior and female sexual activity in the December observation period, no overall significance or significance at other observation periods …
Growth And Performance Of Broiler Chicks During The Starter And Grower Phases In Phase-Feeding, L. Niki Loupe, Jason L. Emmert
Growth And Performance Of Broiler Chicks During The Starter And Grower Phases In Phase-Feeding, L. Niki Loupe, Jason L. Emmert
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
An experiment was conducted to evaluate the efficacy of a nutrition program referred to as “phase-feeding” (PF) over the first 6 weeks posthatching. Diets were formulated using amino acid recommendations from the National Research Council (NRC) (1994) or from linear regression equations generated from best estimates of lysine (Lys), sulfur amino acid (SAA), and threonine (Thr) requirements. Regression equations were used to predict weekly Lys, SAA, and Thr requirements for use in a PF regimen that involved lowering amino acid levels following each respective week of the experiment, resulting in six diets fed over the 6-week period. Over the entire …
Livability Of Leghorn Balut Embryos Stored Under Varying Temperatures And Storage Times, Joyce Jong, F. Dustan Clark
Livability Of Leghorn Balut Embryos Stored Under Varying Temperatures And Storage Times, Joyce Jong, F. Dustan Clark
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Baluts are fertile chicken or duck eggs that have been incubated and removed from the incubator prior to hatching for consumption. Chicken eggs are incubated for 11 to 14 days and duck eggs are incubated for 16 to 20 days. Baluts have an extremely specialized consumer market, with the majority of its consumers of Filipino decent. Current U.S. Department of Agriculture regulations for the storage of baluts prior to sale is 7.2ºC, the same as for infertile commercial table eggs. Consumer preference is to purchase live baluts for consumption. Since exposure to 7.2ºC causes embryo mortality within 8 hours of …
Prediction Of Rice Sensory Texture Attributes Using Spectral Stress Strain Analysis And Jack-Knife Model Optimization, Marura Lenjo, Jean-Francois Meullenet
Prediction Of Rice Sensory Texture Attributes Using Spectral Stress Strain Analysis And Jack-Knife Model Optimization, Marura Lenjo, Jean-Francois Meullenet
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Sensory texture characteristics of cooked rice were predicted using an extrusion test and a novel multivariate analysis method. Eleven sensory texture characteristics were evaluated via a trained descriptive panel and predicted for force/deformation spectra with partial least squares regression. Only four sensory attributes—adhesion to lips (Rcal = 0.83), cohesion of bolus (Rcal = 0.78), cohesiveness (Rcal = 0.69), and hardness (Rcal = 0.72)—were successfully predicted from instrumental measurements.
Instructions For Authors, Discovery Editors
Instructions For Authors, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Abstracts From The Student Presentations Of The Arkansas Chapter Of Gamma Sigma Delta, Discovery Editors
Abstracts From The Student Presentations Of The Arkansas Chapter Of Gamma Sigma Delta, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
New Arkansas Records For Two Nonindigenous Fish Species, With A Summary Of Previous Introductions Of Nonnative Fishes In Arkansas, Thomas M. Buchanan, Jerry Smith, Diana Saul, Jeff Farwick, Tim Burnley, Mark Oliver, Ken Shirley
New Arkansas Records For Two Nonindigenous Fish Species, With A Summary Of Previous Introductions Of Nonnative Fishes In Arkansas, Thomas M. Buchanan, Jerry Smith, Diana Saul, Jeff Farwick, Tim Burnley, Mark Oliver, Ken Shirley
Journal of the Arkansas Academy of Science
No abstract provided.
First Record Of The Subterranean Amphipod Crustacean Allocrangonyx Hubrichti (Allocragonyctidae) In Arkansas, Henry W. Robison, John R. Holsinger
First Record Of The Subterranean Amphipod Crustacean Allocrangonyx Hubrichti (Allocragonyctidae) In Arkansas, Henry W. Robison, John R. Holsinger
Journal of the Arkansas Academy of Science
No abstract provided.
Lymphocyte Profiles In Blood And Tumors Of Arkansas Rous Sarcoma Regressor And Progressor Chickens, Brant Ward
Lymphocyte Profiles In Blood And Tumors Of Arkansas Rous Sarcoma Regressor And Progressor Chickens, Brant Ward
Inquiry: The University of Arkansas Undergraduate Research Journal
The Arkansas Rous Sarcoma Regressor (AR) and Progressor (AP) lines of chickens represent an excellent model to study immune responses to tumors. Both lines of chickens initially develop tumors when injected with Rous sarcoma viros (RSV) or with DNA coding for the RSV oncogene v-src (v-src DNA). AR chickens will eventually regress the tumors whereas AP chickens will allow the tumors to progress to a terminal stage. By using both v-src DNA and RSV for tumor induction, we were able to compare the immune response to tumor antigens alone and tumor antigens in combination with viral components, respectively. To study …
Pentoxifylline Modulation Of The Cytotoxic T-Cell Differentiation Pathway To Enhance Immunological Memory, Eric Goodspeed
Pentoxifylline Modulation Of The Cytotoxic T-Cell Differentiation Pathway To Enhance Immunological Memory, Eric Goodspeed
Inquiry: The University of Arkansas Undergraduate Research Journal
Immunological memory, acquired either by previous infection or vaccination, affords vertebrates a large margin of survival. Subsequent exposure to a "remembered" pathogen signals memory cells to undergo a rapid, clonal proliferation into armed effector cells. This rapidly mobilized clone mediates the specific clearance of the trespassing pathogen. Typically, this secondary recall response effectively dispatches the particular pathogen prior to any manifest disease pathology. This is the age-old, enjoyed benefit of immunity. Though this appreciation for immunological memory has been in documentation for nearly 3 millennia, our ability to intentionally increase its normal level of formation is only now beginning. The …
Fissure Characterization Of Rice Kernels Using Video Microscopy, Jerry W. Fendley, Terry J. Siebenmorgen, Rustico C. Bautista
Fissure Characterization Of Rice Kernels Using Video Microscopy, Jerry W. Fendley, Terry J. Siebenmorgen, Rustico C. Bautista
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Fissures are fractures of a rice kernel that can be created during the drying and tempering process. They cause tremendous postharvest losses in milling yield. Understanding why and how rice kernels fissure will lead to optimal drying and tempering operations. This information could also provide input to plant breeders for producing rice cultivars that are more resistant to fissuring. Rice kernels were dried using various air conditions in a controlled environment chamber. The kernels were viewed by video microscopy to observe the occurrence of fissures. A videocassette recorder recorded the images for a 24-hour period after the drying process. The …
Melanocortin-1-Receptor (Mcr-1) Gene Polymorphisms Associated With The Chicken E Locus Alleles, Andrew Ellett
Melanocortin-1-Receptor (Mcr-1) Gene Polymorphisms Associated With The Chicken E Locus Alleles, Andrew Ellett
Inquiry: The University of Arkansas Undergraduate Research Journal
The melanocortin 1-receptor (MCl-R) gene has been associated with E locus phenotypes in chickens. Variant alleles of the E locus are important for accurate down color sexing and also for the inhibition of unwanted tissue pigmentation in broilers. PCR (polymerase chain reaction) based tests for various replacement substitutions found in the published E allele sequences gave unexpected results when tested against known alleles of the E locus. To resolve these issues and gain a better understanding of how replacement substitutions in the MCl-R gene are affecting E locus phenotypes, a number of accessions of the e+, eb, wheaten ( ewh …
Contents, Discovery Editors
Contents, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Arkansas Animal Science Department Report 1999, Zelpha B. Johnson, D. Wayne Kellogg
Arkansas Animal Science Department Report 1999, Zelpha B. Johnson, D. Wayne Kellogg
Arkansas Agricultural Experiment Station Research Series
No abstract provided.