Steer Stress Response As Affected By Genotype And Transportation,
2014
University of Arkansas, Fayetteville
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 mixed-cultivar tall fescue pasture. Following the stocker phase, steers were transported to the feedlot for finishing. Stress responses were determined 27 h prior to, …
Palatability Of Teff Grass By Horses,
2014
University of Arkansas, Fayetteville
Palatability Of Teff Grass By Horses, Rachel R. Cummins, Kenneth Coffey, Nancy Jack, Kathleen Jogan, Edward Gbur, Robert Rhein, Dirk Philipp, Melissa Adams, William Smith, Katherine Clayton
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Most forages commonly used to feed horses have potential detriments including blister beetles or excessive fiber concentrations. Teff grass (T), a warm-season annual forage, has the potential to be a good alternative for horses because of its lack of observed disorders. Our objective was to compare preference by horses for T harvested under different conditions with that of bermudagrass (B) harvested at two maturities. Six different forages were evaluated: T harvested at the late vegetative stage (TLV), at late bloom but that incurred 33 mm of rainfall between mowing and baling (TLBR), with caryopsis visible (TES), or at soft dough …
Growth And Mortality Of Ozark Bass (Ambloplites Constellatus) In Streams Of The Ozark Highlands,
2014
University of Arkansas, Fayetteville
Growth And Mortality Of Ozark Bass (Ambloplites Constellatus) In Streams Of The Ozark Highlands, Ashley R. Rodman, Kristofor R. Brye
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
The Ozark bass (Ambloplites constellatus) is endemic to the Upper White River Basin, and a limited amount of information exists on the Ozark bass population, including growth and mortality characteristics. The purpose of this study was to determine growth and mortality of Ozark bass in the Upper White River Basin, compare growth of Ozark bass to other Ambloplites species, and compare growth and mortality of Ozark bass between sample sites. Sampling occurred in Crooked Creek and in the Lower Wilderness Area (LWA) of the Buffalo River, with multiple collections from each body of water. Sampling occurred during summer 2013 via …
Modulation Of Variation By Response-Reward Spatial Proximity,
2014
University of Mary Washington
Modulation Of Variation By Response-Reward Spatial Proximity, Kenneth J. Leising, Chad M. Ruprecht, W. David Stahlman
Psychological Science Articles
There has been a recent surge in the experimental investigation of the control of behavioral variability. Currently, it is understood that variability in behavior is predictably modulated by reinforcement parameters (e.g., a probability of reward delivery and reward magnitude). In two experiments, we investigated how spatial proximity between response and reward locations impacts the production of behavioral variability in both response rate and lever press duration. Rats were trained to lever press on two levers in a standard operant chamber that only differed from one another in their proximity to a food niche (i.e., Near vs. Far); a second experimental …
A Qualitative Assessment Of Virginia Beach Dog Park Users,
2014
Old Dominion University
A Qualitative Assessment Of Virginia Beach Dog Park Users, Edwin Gómez, John Hunting
Human Movement Studies & Special Education Faculty Publications
The purpose of this paper is to look at a Virginia Beach, Virginia (VA) dog park as a case study exploring the benefits and perceptions of dog parks by its users. The qualitative methodology follows an earlier dog park study by Gómez (2013) in Norfolk, VA. Our findings indicated three major themes: (a) dog exercise, (b) socialization for dogs (and humans), and (c) safe off-leash place. Findings from Virginia Beach are compared to earlier findings in Norfolk.
Ecology Of The Squirrel Treefrog (Hyla Squirella) In Southern Arkansas,
2014
South Arkansas Community College
Ecology Of The Squirrel Treefrog (Hyla Squirella) In Southern Arkansas, M. B. Connior, T. Fulmer, C. T. Mcallister, S. E. Trauth, C. R. Bursey
Journal of the Arkansas Academy of Science
We conducted an ecological study of the Squirrel Treefrog, Hyla squirella near El Dorado, Union Co., Arkansas from May-Oct. 2013. We extended the known distribution by ~2 km and documented the first breeding occurring on 28 May and the first transformation of juveniles on 27 Aug. Three endoparasites were documented: Opalina sp., Nyctotherus cordiformis, and Physaloptera sp. larvae. We also provide information on endoparasites of Florida H. squirella as well as a summary of helminths of this frog.
Growth And Reproduction In The Ouachita Madtom (Noturus Lachneri) At The Periphery Of Its Distribution,
2014
Henderson State University
Growth And Reproduction In The Ouachita Madtom (Noturus Lachneri) At The Periphery Of Its Distribution, R. Tumilson, J. O. Hardage
Journal of the Arkansas Academy of Science
The Ouachita madtom (Noturus lachneri) occurs primarily in drainages of the upper Saline River and in a few small tributaries to the Ouachita River in Arkansas, USA. We collected specimens by hand and by use of aquarium dipnets on 29 occasions from 20 October 1999 through 25 July 2000 in Cooper Creek, presently a feeder creek into Lake Catherine on the Ouachita River. Total length was measured, reproductive attributes were noted, and individuals were released at the capture site (with exception of 3 gravid females retained to assess fecundity). We recognized 2 age (size) classes during most of the year …
New Records Of Ectoparasites And Other Epifauna From Scalopus Aquaticus And Blarina Carolinensis In Arkansas,
2014
South Arkansas Community College
New Records Of Ectoparasites And Other Epifauna From Scalopus Aquaticus And Blarina Carolinensis In Arkansas, M. B. Connior, L. A. Durden, C. T. Mcallister
Journal of the Arkansas Academy of Science
No abstract provided.
Natural History Notes And Records Of Vertebrates From Arkansas,
2014
South Arkansas Community College
Natural History Notes And Records Of Vertebrates From Arkansas, M. B. Connior, R. Tumlison, H. W. Robison, C. T. Mcallister, D. A. Neely
Journal of the Arkansas Academy of Science
No abstract provided.
Toad (Anura: Bufonidae) Limb Abnormalities From An Aquatic Site In Scott, Pulaski County, Arkansas,
2014
Arkansas State University
Toad (Anura: Bufonidae) Limb Abnormalities From An Aquatic Site In Scott, Pulaski County, Arkansas, C. S. Thigpen, D. Beard, S. E. Trauth
Journal of the Arkansas Academy of Science
We collected and examined 16 Fowler’s toads, Anaxyrus fowleri, and one dwarf American toad, Anaxyrus americanus charlesmithi, in central Arkansas in 2011. Collection was initiated by observation of abnormal toads. Toads were euthanized, measured, photographed, and deposited in the Arkansas State University herpetological collection. Several toads were radiographed. We found various abnormalities in both forelimbs and hindlimbs and on both sides of the body. The causes of the abnormalities remain unknown and will require further studies to determine if the environment is imperiled.
Fecundity Of Arkansas Tarantulas Aphonopelma Hentzi (Girard),
2014
Northwest Arkansas Community College
Fecundity Of Arkansas Tarantulas Aphonopelma Hentzi (Girard), A. K. Jones, D. H. Jamieson, T. L. Jamieson
Journal of the Arkansas Academy of Science
No abstract provided.
Haemogregarina Sp. (Apicomplexa: Haemogregarinidae), Telorchis Attenuata (Digenea: Telorchiidae) And Neoechinorhynchus Emydis (Acanthocephala: Neoechinorhynchidae) From Map Turtles (Graptemys Spp.), In Northcentral Arkansas,
2014
Eastern Oklahoma State College
Haemogregarina Sp. (Apicomplexa: Haemogregarinidae), Telorchis Attenuata (Digenea: Telorchiidae) And Neoechinorhynchus Emydis (Acanthocephala: Neoechinorhynchidae) From Map Turtles (Graptemys Spp.), In Northcentral Arkansas, C. T. Mcallister, C. R. Bursey, H. W. Robison, M. B. Connior, M. A. Barger
Journal of the Arkansas Academy of Science
No abstract provided.
New Host And Geographic Distribution Records For The Fish Leech Myzobdella Reducta (Meyer, 1940) (Hirudinida: Piscicolidae),
2014
Quinnipiac University
New Host And Geographic Distribution Records For The Fish Leech Myzobdella Reducta (Meyer, 1940) (Hirudinida: Piscicolidae), D. J. Richardson, W. E. Moser, C. T. Mcallister, R. Tumlison, J. W. Allen Jr., M. A. Barger, H. W. Robison, D. A. Neely, G. Watkins-Colwell
Journal of the Arkansas Academy of Science
No abstract provided.
Size And Age Records For An Arkansas Specimen Of The American Bullfrog, Lithobates Catesbeianus (Anura: Ranidae),
2014
Arkansas State University
Size And Age Records For An Arkansas Specimen Of The American Bullfrog, Lithobates Catesbeianus (Anura: Ranidae), S. E. Trauth, T. A. Welch
Journal of the Arkansas Academy of Science
No abstract provided.
Long-Term Impacts Of Adolescent Risperidone Treatment On Behavioral Responsiveness To Olanzapine And Clozapine In Adulthood,
2014
Southwest University, Chongqing, PR China
Long-Term Impacts Of Adolescent Risperidone Treatment On Behavioral Responsiveness To Olanzapine And Clozapine In Adulthood, Jing Qiao, Qinglin Zhang, Ming Li
Department of Psychology: Faculty Publications
This preclinical study investigated howa short-termrisperidone treatment in adolescence impacts antipsychotic response to olanzapine and clozapine in adulthood. Antipsychotic effect was indexed by a drug's suppressive effect on avoidance responding in a rat conditioned avoidance response (CAR) model. Male adolescent Sprague–Dawley rats were first treated with risperidone (1.0mg/kg, sc) or sterile water and tested in the CAR model for 5 consecutive days from postnatal days P 40 to 44. After they became adults (~P 80–84), they were switched to olanzapine (0.5mg/kg, sc), clozapine (5.0mg/kg, sc) or vehicle treatment and tested for avoidance for 5 days. During the adolescent period, repeated …
Sorting Sheep And Goats In Medieval Iceland And Greenland Local Subsistence, Climate Change, Or World System Impacts?,
2014
CUNY Hunter College
Sorting Sheep And Goats In Medieval Iceland And Greenland Local Subsistence, Climate Change, Or World System Impacts?, Thomas Mcgovern, Ramona Harrison, Konrad Smiarowski
Publications and Research
Large archaeofaunal collections recovered from Viking Age and Medieval sites in Iceland and Greenland during intensive collaborative fieldwork over the past decade have demonstrated a diverging pattern in sheep and goat (caprine) management after ca. 1200 CE in the two Norse communities. Since Landnám (first settlement), flocks in both places contained a mixture of sheep and goats and survivorship profiles suggest a very mixed milk-meat-wool production strategy. By the late 13th century Icelandic herds were nearly all sheep, and zooarchaeological evidence suggests an increasing focus on wool production. Greenlandic archaeofauna indicate that farmers maintained the old Viking Age pattern …
Characterization Of The Discriminative Stimulus Properties Of The Atypical Antipsychotic Amisulpride In C57bl/6 Mice,
2014
[email protected]
Characterization Of The Discriminative Stimulus Properties Of The Atypical Antipsychotic Amisulpride In C57bl/6 Mice, Timothy J. Donahue
Theses and Dissertations
Amisulpride, a benzamide derivative, is an atypical antipsychotic drug used to treat both schizophrenia and depression. Amisulpride is a selective antagonist at dopamine D2 and D3 receptors and at serotonin 5-HT2B and 5-HT7 receptors and displays an atypical clinical profile with reduced extrapyramidal motor effects. The drug has a chiral center and is a mixture of two optical isomers: (S)-amisulpride and (R)-amisulpride. The present study used a two-lever drug discrimination assay to allow a direct comparison between amisulpride and its two isomers. Additionally, substitution testing was conducted with the typical antipsychotics, atypical antipsychotics, antidepressants, …
Why Do Small Dogs Have So Many Psychological Problems?,
2013
Animal Studies Repository
Why Do Small Dogs Have So Many Psychological Problems?, Harold Herzog
'Animals and Us' Blog Posts
Do little dogs suffer from the Napoleon Complex?
Spatial Analysis Of Factors Influencing Long-Term Stress In The Grizzly Bear (Ursus Arctos) Population Of Alberta, Canada,
2013
University of Victoria
Spatial Analysis Of Factors Influencing Long-Term Stress In The Grizzly Bear (Ursus Arctos) Population Of Alberta, Canada, Mathieu Bourbonnais, Trisalyn Nelson, Mark Cattet, Chris T. Darimont, Gordon Stenhouse
Physiology Collection
Non-invasive measures for assessing long-term stress in free ranging mammals are an increasingly important approach for understanding physiological responses to landscape conditions. Using a spatially and temporally expansive dataset of hair cortisol concentrations (HCC) generated from a threatened grizzly bear (Ursus arctos) population in Alberta, Canada, we quantified how variables representing habitat conditions and anthropogenic disturbance impact long-term stress in grizzly bears. We characterized spatial variability in male and female HCC point data using kernel density estimation and quantified variable influence on spatial patterns of male and female HCC stress surfaces using random forests. Separate models were developed for regions …
Dog Behavior Co-Varies With Height, Bodyweight And Skull Shape,
2013
University of Sydney
Dog Behavior Co-Varies With Height, Bodyweight And Skull Shape, Paul D. Mcgreevy, Dana Georgevsky, Johanna Carrasco, Michael Valenzuela, Deborah L. Duffy, James A. Serpell
Eidonomy Collection
Dogs offer unique opportunities to study correlations between morphology and behavior because skull shapes and body shape are so diverse among breeds. Several studies have shown relationships between canine cephalic index (CI: the ratio of skull width to skull length) and neural architecture. Data on the CI of adult, show-quality dogs (six males and six females) were sourced in Australia along with existing data on the breeds’ height, bodyweight and related to data on 36 behavioral traits of companion dogs (n = 8,301) of various common breeds (n = 49) collected internationally using the Canine Behavioral Assessment and Research Questionnaire …
