Digital Commons Network^™

Protein Utilization And Requirements In Broiler Breeders, Ricardo David Ekmay

Graduate Theses and Dissertations

Advances in the genetics of poultry have created unintended consequences to the broiler breeder industry. Excessive weight has been shown to have many negative effects, including double hierarchies, multiple ovulations, and fatty liver. In an effort to curb excessive body weight gain, both the protein requirements and feeding strategies of broiler breeders are being revisited. A series of studies were conducted to determine the protein and amino acid requirements of broiler breeders during the production phase and to determine the interrelationship between protein turnover and egg formation. In the first trial, a 2x3x3 factorial study was conducted to determine the …

Determination Of Poultry Litter's Nitrogen-Fertilizer Value For Winter Wheat Production, Brett Lee Gordon

Graduate Theses and Dissertations

Nitrogen (N) availability in poultry litter (PL) applied in the fall as a nutrient source for winter wheat (Triticum aestivum L.) has not been adequately characterized. Our objective was to determine a potentially available N (PAN) coefficient based on the inorganic-N fertilizer equivalence (FEQ) of fall-applied PL to winter wheat via field and laboratory research. Wheat grown at six site-years received 0, 84 and 168 kg N ha-1 as PL applied preplant and/or at-planting. The FEQ of PL-N was based on growth and yield responses of wheat fertilized with 22 to 191 kg N ha-1 applied in late winter as …

Raising The Kindergarten Entry Age, Misty Newcomb, Gary W. Ritter

Policy Briefs

In recent years, the standards in Arkansas for entry into kindergarten underwent changes that can be difficult to understand. Across the nation, states have increased the minimum age of entry into public schools, and Arkansas is no exception. Recently, a policymaker in our state asked the OEP to look into the research surrounding the question of raising the kindergarten entry age. This policy brief discusses the new requirements as well as the impact of these requirements on families and children in the short and long term by looking at recent changes in Arkansas law and studies concerning the effect of …

Colleague, Fall 2011, University Of Arkansas, Fayetteville. College Of Education And Health Professions, University Of Arkansas, Fayetteville. Department Of Education Reform

Colleague

No abstract provided.

Estimating Cost Efficiencies Of Propane Use In Broiler Production: Case Study From Savoy, Arkansas And Trnaca Pri Laborci, Slovak Republic, Zuzana Petrikova

Graduate Theses and Dissertations

This study focuses on analyzing the common practice of U.S. broiler farmers to operate on cash basis instead open credit lines for operating cost of propane gas for heating. Data for analysis were taken over from U.S. ABRF at Savoy and Slovak Farm Univerza at Trnava pri Laborci. Predicting the propane gas usage and propane gas cost was analyzed using the OLS model. It describes impact of selected factors on gas usage and cost. The overall purpose of the thesis is to find out which approach from designed scenarios is more economically efficient for farmer: (a) to pre-purchase propane gas …

Effects Of Lactate Dehydrogenase Haplotypes And Body Condition On Beef Cow Production, Olfat Taleb Alaamri

Graduate Theses and Dissertations

Lactate dehydrogenase (LDH) catalyzes the conversion of the pyruvate to lactate (forward) or lactate to pyruvate (reverse) in the last step of glycolysis. Objectives were to document the effects of LDH haplotypes and its SNPs, found in the promoter and coding sequence site, and body condition on beef cow production. Four single nucleotide polymorphisms (SNP) of LDH-B and Five single nucleotide polymorphisms of LDH-A were detected. Eight haplotypes of LDH-B were assigned with the same order of SNPs: G-348A, A-261G, N-222D, and C541A and four haplotypes of LDH-A were assigned with the same order of SNPs: T-327G, D-263C, G390A, A406G, …

B. R. Wells Rice Research Studies 2010, R. J. Norman, K. A. K. Moldenhauer

Arkansas Agricultural Experiment Station Research Series

The 2010 Rice Research Verification Program ( RRVP) was conducted on twenty-two commercial rice fields across the state. Counties rarticirating in the program included Arkansas, Ashley, Chicot, Clark, Clay, Cross, Desha, Drew, Greene, Jackson, Jefferson, Lafayette, Lawrence, Lonoke, Mississippi, Phillips, Poinsett (2 fields), Prairie, Randolph, St. Francis, and White for a total of 1456 acres. Grain yield in the 2010 RRVP averaged 167 bu/acre ranging from 113 to 215 bu/acre. The 2010 RRVP average yield was 25 bu/acre greater than the estimated Arkansas state average of 142 bu/acre. The highest yielding field was in Clay County with a grain yield …

Stability And Sensory Properties Of Rice Bran Peptide Fraction Incorporated Orange Juice, Mirna Georges Khairallah

Graduate Theses and Dissertations

Functional foods offer consumers added benefits beyond the sole nutritional content of the food. Food companies are aggressively seeking new and cheaper sources of functional ingredients. Kannan et al. (2008) characterized anticancer peptides and peptide fraction from rice bran. However, information about their application and stability in food is lacking. In this study the stability of the peptide fraction in water at pH 7.2, at pH 3.5, and in orange juice was studied. The effect of the addition of the peptide fraction on the quality parameters of orange juice including sensory was also assessed. The results showed that the peptide …

Effects Of Ergot Alkaloids And Antioxidants On Bovine Sperm Motility, Ryan James Page

Graduate Theses and Dissertations

The studies that comprise this thesis were performed in an attempt to identify and eliminate stressful conditions that may lead to infertility in the male bovine. The first project was performed to determine if ergot alkaloids directly affect bovine sperm motility. Percentage of motile spermatozoa was affected (P = 0.015) by a three-way interactions between time, concentration, and alkaloid. Ergotamine and dihydroergotamine decreased (P = 0.01) sperm motility in a concentration and time dependant manner and ergonovine had a minimal effect on overall sperm motility. The number of static spermatozoa also was affected (P < 0.01) by a three way interaction and increased as ET and DHET concentrations increased. Percentages of progressively motile and rapidly motile spermatozoa decreased (P < 0.01) in a two way interaction between alkaloid and concentration. Overall, sperm motility was decreased by ET and DHET. Furthermore, the qualities of motility as represented by progressive, rapid, path velocity (VAP), progressive velocity (VSL), track speed (VCL), beat frequency (BCF), lateral amplitude (ALH), straightness (STR), elongated, and area were decreased by those alkaloids. These data verify that ergot alkaloids commonly found in toxic tall fescue are detrimental to bovine spermatozoa. In the second study two antioxidants (alpha-tocopherol and ascorbic acid) were added to bovine sperm culture media and cryopreservation extender. The antioxidant capabilities of these two vitamins could help reduce free radical production and help preserve sperm viability. There was an interactive effect between ascorbic acid concentration and storage method on the bovine sperm motility characteristics: motile, progressive, rapid, track speed (VCL), and straightness (P < 0.05). A bull by ascorbic acid interaction (P < 0.05) was observed for motile, progressive, rapid, path velocity (VAP), progressive velocity (VSL), and VCL characteristics. Alpha tocopherol had no affects on sperm motility characteristics. Lipid peroxidation was affected (P < 0.01) by bull and ascorbic acid. Malondialdehyde concentrations for ascorbic acid treatments (0, 5, 10, 20 mM) were 3.25, 4.2, 2.96, and 2.15 ìM respectively. Results from the second study indicate that the addition of ascorbic acid may reduce sperm motility, but help prevent lipid peroxidation.

Partners, June 2011, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science

Partners

No abstract provided.

Faculty Impact Statements, 2010, Arkansas Agricultural Experiment Station

Agricultural Experiment Station Records

Each issue [in the Research Series] has a distinctive title

An Ecology Of Philanthropy: Community Composition And Nonprofit Revenue In The United States, Wendie Neesa Choudary

Graduate Theses and Dissertations

There is little doubt that most American cities are currently troubled places because of massive economic shifts that have marked the last two decades. Charitable giving has consistently been seen as the lifeblood of communities around the United States (Backman and Smith 2000). The primary purpose of this study is to examine the relationship between community composition and charitable giving. The impact of community characteristics (community composition, organizational composition, and community deterioration) on charitable revenues will be assessed using revenue data from the 2006-2007, 501(c)(3), 990, charitable organization forms along with United States county census data. One-way ANOVA and regression …

Characterization Of Polyphenolics In Cranberry Juice And Co-Products, Brittany Lynn White

Graduate Theses and Dissertations

Historically, cranberry juice has been consumed to prevent urinary tract infections. These and other health benefits, including reduced risks of cancer and cardiovascular disease, are believed to be due to the presence of polyphenolics, specifically flavonoids. Cranberry pomace is the by-product of cranberry processing which consists of seeds and skins. This research focuses primarily on the effects of processing on the flavonoid composition of cranberries and cranberry pomace. First, the concentration of flavonoids during juice processing was evaluated. It was determined that anthocyanins were degraded readily compared to other flavonoids, and a significant amount of flavonoids were retained in the …

Getting Into The Field, Jay A. Mitchell

Journal of Food Law & Policy

A group of students enrolled in a law school clinic wanders through a large farmers' market. They stop to chat with the proprietors of a farm that has sold vegetables at the market for many years. They visit with a cheesemaker and an apple grower. A second group learns about the economic costs of organic production from a farmer and talks with an olive oil producer. Both sets of students seem unusually attentive to their surroundings. That may be because the first group helped the sponsor of the market rework the market's rules and regulations, and the second developed a …

Greenwashing The Organic Label: Abusive Green Marketing In An Increasingly Eco-Friendly Marketplace, Greg Northen

Journal of Food Law & Policy

The green wave of environmental advertising among organic food producers, distributors, and retailers begun during the 1990s has become an all-out green tsunami. The organic food market is the fastest growing segment of the American food industry. Consumers are increasingly becoming aware of the impact their purchases have on several environmental issues. As a result, those consumers are becoming more aware of their spending power and are willingly altering their buying practices to purchase from companies that emphasize environmental responsibility. In fact, some retailers' inventory is already being scanned for alternative green products by their customers' iPhones because, guess what, …

Journal Of Food Law & Policy - Spring 2011, Journal Editors

Journal of Food Law & Policy

No abstract provided.

Food Entrepreneurs And Food Safety Regulation, Nina W. Tarr

Journal of Food Law & Policy

It is a bucolic scene: local food growers and producers chatting with consumers who come back each week to participate in a direct and continuing conversation about food with someone they know, and to engage in commerce. This illusion of simplicity masks the ever-growing morass of conflicting, complicated, and expensive regulatory oversight that undermines the local food movement by creating barriers between producers and consumers. Those creating and implementing food policy in the United States are facing a fundamental dilemma of how to reconcile the local food movement with regulations designed to address concerns about food safety.

This article will …

The History And Future Of Genetically Modified Crops: Frankenfoods, Superweeds, And The Developing World, Brooke Glass-O'Shea

Journal of Food Law & Policy

In a 1992 letter to the New York Times, a man named Paul Lewis referred to genetically modified (GM) crops as "Frankenfood," and wryly suggested it might be "time to gather the villagers, light some torches and head to the castle." Little did Lewis know that his neologism would become the rallying cry for activists around the world protesting the dangers of genetic engineering. The environmental activist group Greenpeace made great use of the "Frankenfood" epithet in their anti-GM campaigns of the 1990s, though they have since backed away from the word and the hardline stance it represents. But genetically …

Canadian Food Law Update, Patricia L. Farnese

Journal of Food Law & Policy

Provided below is an overview of developments in Canadian food law and policy in 2010. This update primarily analyzes the regulatory and policy developments and litigation activities by the federal government. This focus reflects the significance of federal activities in the food policy realm.

United States Food Law Update: The Fda Food Safety Modernization Act, Obesity And Deceptive Labeling Enforcement, A. Bryan Endres, Nicholas R. Johnson

Journal of Food Law & Policy

The long-awaited enactment of the FDA Food Safety Modernization Act (FSMA), the most significant amendment to the Federal Food, Drug, and Cosmetic Act in several decades, provides the Food and Drug Administration (FDA) with significantly enhanced jurisdiction to close some of the gaps in the domestic food safety system. The enhanced FDA authority, however, will have little impact on the shared governance system at the federal level that involves multiple agencies, as the Act does not address the U.S. General Accounting Office's (GAO) repeated calls for consolidation of the fragmented federal food safety system. Rather, the Act perpetuates the division …

Mitigation Of Bovine Respiratory Disease Complex: Interactions Of Physiology, Immunology, Nutrition And Management, John Thomas Richeson

Graduate Theses and Dissertations

A series of experiments were conducted to determine the effects of on-arrival vs. delayed respiratory vaccination and exposure to persistently infected bovine viral diarrhea virus challenge on health, gain performance, and physiological and immunological measurements in newly received stocker cattle. Two experiments evaluated timing (d 0 vs. 14) of respiratory, clostridial, or both vaccinations in newly received stocker calves during stress-induced immunosuppression. In Exp. 1, calves receiving 14-d delayed vaccination of a pentavalent modified-live respiratory virus (MLV) vaccine had greater ADG during the 42-d receiving period and antibody titers against infectious bovine rhinotracheitis on d 42; however, morbidity rate did …

Chemical Ecology, Population Dynamics And Insecticide Susceptibility Of Lesser Mealworm Alphitobius Diaperinus (Panzer) (Coleoptera: Tenebrionidae), Narinderpal Singh

Graduate Theses and Dissertations

The lesser mealworm, Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae), is a serious, cosmopolitan pest present in poultry production facilities, where it slows down weight gain in chicks, carries disease–causing organisms, and causes damage to poultry insulation. The first study estimated that the lesser mealworm densities in poultry litter applied to pastures were 3.5, 2.2 and 0.4 million larvae, adults and pupae, respectively, per hectare in Savoy, Arkansas. The repercussions of these adult beetles are that they often disperse to and reinfest poultry houses with the potential to vector disease to poultry, and disperse to invade human dwellings resulting in litigation. The …

European Food Law Update, Emilie H. Leibovitch

Journal of Food Law & Policy

This EU Food Law Update will focus on the developments that occurred since October 2010 in the areas of genetically modified organisms, novel foods, contaminants, food quality, and labeling.

Athletic Training Education Program Newsletter, Spring 2011, University Of Arkansas, Fayetteville. Athletic Training Education Program

Athletic Training Education Newsletter

No abstract provided.

Center For Food Safety, Spring 2011, University Of Arkansas (System). Division Of Agriculture. Center For Food Safety

Center for Food Safety

No abstract provided.

Food Safety Consortium Newsletter, Spring 2011, Food Safety Consortium (U.S.)

Food Safety Consortium Newsletter

No abstract provided.

Graduate, Spring-Summer 2011, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville)

Graduate

"For alumni and friends of the Dale Bumpers College of Agricultural, Food and Life Sciences and the University of Arkansas System Division of Agriculture."

Animal Science Newsletter, Spring 2011, University Of Arkansas, Fayetteville. Department Of Animal Sciences

Animal Science Newsletter

"Dedicated to the Alumni and Friends of the Animal Sciences Department, University of Arkansas."

Minutes Of The Faculty Senate Meeting, February 16, 2011, University Of Arkansas, Fayetteville. Faculty Senate

Faculty Senate Minutes

No abstract provided.

Annual Report, 2011, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.