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Articles 1 - 12 of 12
Full-Text Articles in Life Sciences
Steer Stress Response As Affected By Genotype And Transportation, Megan Wary, Marites Sales, Ben Williamson, Ken Coffey, Michael Looper, Charles Rosenkrans Jr.
Steer Stress Response As Affected By Genotype And Transportation, Megan Wary, Marites Sales, Ben Williamson, Ken Coffey, Michael Looper, Charles Rosenkrans Jr.
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Bovine cytochrome P450 3A28 is responsible for metabolizing ergot alkaloids that cattle ingest when feeding on endophyte-infested tall fescue grass. The objective of this research was to determine associations among genotype, transportation, and stress responses. Angus crossbred steers (n = 47) were genotyped (CC, CG, or GG) for a single-nucleotide polymorphism (C994G) in cytochrome P450 3A28. Genotypes were determined by polymerase chain reaction (PCR) amplification followed by restriction enzyme (Alu1) digestion. Steers were backgrounded on a mixedcultivar tall fescue pasture. Following the stocker phase, steers were transported to the feedlot for finishing. Stress responses were determined 27 h prior to, …
Safety Of Improved Milbond-Tx Mycotoxin Binder When Fed To Broiler Breeders Above Recommended Levels, Michael Schlumbohm, Judy England, Rueben Kriseldi, C. Coon
Safety Of Improved Milbond-Tx Mycotoxin Binder When Fed To Broiler Breeders Above Recommended Levels, Michael Schlumbohm, Judy England, Rueben Kriseldi, C. Coon
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
An increasing concern in poultry nutrition is the effects of mycotoxins in contaminated grain. Several new products have come onto the market that chemically bind these toxins preventing mycotoxicosis. However, many of these products have not been tested for safety if accidently overfed to broiler breeders. In order to simulate a feed mixing error at a feed mill, Improved Milbond-TX® was overfed to broiler breeders to see if this would cause any negative effects on bird performance. A typical corn-soybean based diet supplemented with Milbond-TX mycotoxin binder at three different levels of inclusion (0%, 0.5%, and 1%) was fed to …
Efficacies Of Fenbendazole And Albendazole In The Treatment Of Commercial Turkeys Artificially Infected With Ascaridia Dissimilis, Jessica Perkins, Tom Yazwinski, Chris Tucker
Efficacies Of Fenbendazole And Albendazole In The Treatment Of Commercial Turkeys Artificially Infected With Ascaridia Dissimilis, Jessica Perkins, Tom Yazwinski, Chris Tucker
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
The goal of this research was to determine the extent of resistance that turkey roundworms, Ascaridia dissimilis, have developed to anti-parasitic chemicals used in commercial poultry operations. Roundworm infections in turkeys have resulted in monetary losses for the poultry industry for years, generally due to poor feed conversion. The infection itself is subclinical and many turkeys have a light to moderate worm burden. Since parasitisms are light, this leads to the infections being noticed only during processing. Ascaridia dissimilis infections consist of adult worms and developing larvae with the latter comprising most of the worm burden and causing the most …
Calf Pre-Weaning Traits And Immunoglobulin Response To Bovine Viral Diarrhea Virus Vaccination, Whitney Downum, A. Hayden Brown Jr., Jermey G. Powell, E. Beth Kegley, Zelpha B. Johnson, Doug B. Galloway, James A. Hornsby, Billy R. Lindsey
Calf Pre-Weaning Traits And Immunoglobulin Response To Bovine Viral Diarrhea Virus Vaccination, Whitney Downum, A. Hayden Brown Jr., Jermey G. Powell, E. Beth Kegley, Zelpha B. Johnson, Doug B. Galloway, James A. Hornsby, Billy R. Lindsey
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Calfhood vaccination for bovine viral diarrhea virus (BVDV) is a relatively new concept, and protocols are evolving. Our objective was to determine effects of BVDV type I vaccination protocol, calf behavior (chute score, and chute exit velocity), and gender on calf gain and immunoglobulin (Ig) response. Crossbred calves (n = 64) were randomly allotted to one of two vaccination protocols. In protocol 1, calves were vaccinated at 60 d of age (d 0) and at weaning (d 147). Calves assigned to protocol 2 were vaccinated against BVDV type I at 21 d prior to (d 126) and at weaning (d …
Controlling Listeria Monocytogenes On Ready-To-Eat Poultry Products Using Carboxymethylcellulose Film Coatings Containing Green Tea Extract (Gte) Combined With Nisin And Malic Acid, Brittany Adams, N. Hettiarachchy, M. G. Johnson
Controlling Listeria Monocytogenes On Ready-To-Eat Poultry Products Using Carboxymethylcellulose Film Coatings Containing Green Tea Extract (Gte) Combined With Nisin And Malic Acid, Brittany Adams, N. Hettiarachchy, M. G. Johnson
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
The ability to control Listeria monocytogenes on ready-to-eat poultry products using carboxymethyl-cellulose film coatings containing green tea extract (GTE), malic acid (M), nisin (N), and their combinations was evaluated. The antimicrobials (GTE: 1.0%, nisin: 10,000 IU/g, malic acid: 1.0%) were incorporated alone or in combination into a carboxymethyl cellulose film coating. Pre-inoculated, fully cooked chicken pieces (~1g, 1cm x 1cm x 1cm) were coated with the film solution. The coated chicken pieces were stored at 4°C and the inhibitory activity against Listeria monocytogenes was evaluated at 0, 7, 14, 21, and 28 days. The highest inhibitory activity was found in …
Initial Evaluation Of Novel Preparations Of Bordetella Avium By Determination Of Antibody Response Titers, Joel Gallagher, Stacy Higgins, Luc Berghman, Billy Hargis
Initial Evaluation Of Novel Preparations Of Bordetella Avium By Determination Of Antibody Response Titers, Joel Gallagher, Stacy Higgins, Luc Berghman, Billy Hargis
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
The efficacy of killed vaccines generally is not equal to live vaccines. However, due to safety and ease of production, they remain a vital part of controlling and preventing diseases. In this study, the immune response to four different vaccination preparation techniques for the agent of bordetellosis of turkeys, Bordetella avium (BA), was compared. Preparation/inactivation techniques included (1) formalin inactivation, (2) opsonization of formalin-inactivated BA, (3) buffered acetic-acid BA inactivation, or (4) opsonization of buffered acetic-acid-inactivated BA. Nonadjuvated suspensions containing equal antigen mass were administered subcutaneously (0.2 mL) at day-of-hatch in all cases. For each treatment (N=40/treatment), plasma samples were …
Inhibitory Activity Against Listeria Monocytogenes By Soy-Protein Edible Film Containing Grape Seed Extract, Nisin, And Malic Acid, Brittany Adams, T. Sivarooban, Navam S. Hettiarachchy, M. G. Johnson
Inhibitory Activity Against Listeria Monocytogenes By Soy-Protein Edible Film Containing Grape Seed Extract, Nisin, And Malic Acid, Brittany Adams, T. Sivarooban, Navam S. Hettiarachchy, M. G. Johnson
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
The frequent outbreaks of food-borne illness necessitate development of intervention strategies, including the use of natural antimicrobials. Listeria monocytogenes is one of the most important bacterial pathogens that recently has caused a significant number of outbreaks. With the aim of finding potent natural agents that can minimize pathogen contamination concerns, this study evaluated the inhibitory activities against L. monocytogenes of grape seed extract (GSE), malic acid (M), nisin (N), and combinations thereof incorporated into soy-protein edible films. Soyprotein films with/without addition of antimicrobial agents (GSE: 1%, Nisin: 10,000 IU/g, Malic acid: 1%, and their combinations) were prepared and evaluated for …
A Survey Into The Prevalence Of Parasitic Helminths In Broiler Breeders, Anita Sarathi, Tom Yazwinski, Chris Tucker, Jennifer Robins
A Survey Into The Prevalence Of Parasitic Helminths In Broiler Breeders, Anita Sarathi, Tom Yazwinski, Chris Tucker, Jennifer Robins
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
A survey was conducted to determine the prevalence of helminth infections in spent broiler breeders. Intestinal tracts from 10 birds from each of five farms were obtained and examined for parasite identification and quantification. Heterakis gallinarum infections were the most common, followed in order of decreasing incidence by Capillaria obsignata, Ascaridia galli, and Raillietina cesticillus. Peak worm burdens for individual birds were 121 (A. galli), 535 (H. gallinarum), 215 (C. obsignata) and 125 (R. cesticillus). Significant farm-to-farm variation in worm burdens was observed.
The Effects Of Classic And Variant Infectious Bursal Disease Viruses On Lymphocyte Populations In Specific-Pathogen-Free White Leghorn Chickens, Christina L. Johnson, Ashley K. Cox, April D. Keeter, Will J. Quinn, Gisela F. Erf, Lisa A. Newberry
The Effects Of Classic And Variant Infectious Bursal Disease Viruses On Lymphocyte Populations In Specific-Pathogen-Free White Leghorn Chickens, Christina L. Johnson, Ashley K. Cox, April D. Keeter, Will J. Quinn, Gisela F. Erf, Lisa A. Newberry
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Infectious bursal disease virus (IBDV) is a pathogen that primarily infects B lymphocytes in domestic avian species. This viral infection has been associated with immunosuppression, clinical disease/mortality, and enteric malabsorption effects. The purpose of this experiment was to compare the effects of a classic (USDA-STC) and a new variant IBDV (RB-4, known to induce primarily the enteric disease) on immune cell populations in lymphoid organs. Seventeen-dayold specific-pathogen-free (SPF) White Leghorn chickens were either not infected (control) or inoculated with either USDA-STC or RB-4 IBD viral isolate. On days 3 and 5 post-inoculation (PI), lymphoid tissues were collected to prepare cell …
Organophosphate Toxicosis In Chickens: A Case Report, Robert Hubbard, Judith England, E. Dustan Clark
Organophosphate Toxicosis In Chickens: A Case Report, Robert Hubbard, Judith England, E. Dustan Clark
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Two cases of organophosphate toxicity were diagnosed at the University of Arkansas Poultry Science Department poultry research farm in the Spring of 2002. In both cases the birds were being treated with the organophosphate RaVap® for Northern Fowl Mites (Ornithonyssus sylvarium) infestations. A total of 61 birds died and 13 were treated successfully with atropine sulphate.
Peripheral Blood Leukocyte Response And Macrophage Function During Eimeria Adenoeides Infection In Turkey Poults, Amanda D. Drake, Sarah E. Heuer, Timothy G. Kimball, Timothy O. Peters, H. David Chapman, Gisela F. Erf
Peripheral Blood Leukocyte Response And Macrophage Function During Eimeria Adenoeides Infection In Turkey Poults, Amanda D. Drake, Sarah E. Heuer, Timothy G. Kimball, Timothy O. Peters, H. David Chapman, Gisela F. Erf
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Intestinal coccidiosis, caused by various species of Eimeria, is an economically important disease of chickens and turkeys. The peripheral blood leukocyte response and macrophage functions during a coccidial infection in turkeys have not been defined. To examine these aspects of innate immunity during primary Eimeria infection in turkeys, 4-week-old poults were orally inoculated with either 50,000 E. adenoeides oocyst (24 infected poults) or water (24 control poults). To monitor the concentrations and proportions of white blood cells (WBC) throughout the course of infection, heparinized blood was collected from 12 infected and 12 control poults prior to inoculation (day 0), and …
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 …