Animal Sciences Commons^™

Uk Ag Equine Programs 2014 Calendar: A 12-Month Planning Calendar For The Care And Use Of Your Horses, Jason R. Philips, Glenn Mackie, Don Sorrell, Nicholas L. Carter, Paula A. Jerrell, Brian Newman, Daniel O. Wilson, Christopher Jeffcoat, Karen Douglas, Katheryn Cerny, Fernanda Camargo, Robert Coleman, Essie Rodgers, Jim Smith

Agriculture and Natural Resources Publications

The information in this calendar is provided to aid owners in planning for the care and use of their horses. When necessary, information is discussed in the month prior to application to allow horse owners adequate time to plan for activities such as weed control, soil testing, and vaccinations.

Contact your local veterinarian for health-related issues and your county extension agent for further information. Phone numbers are listed at the end of the calendar.

High-Sulfur In Beef Cattle Diets: A Review, M. E. Drewnoski, D. J. Pogge, S. L. Hansen

Department of Animal Science: Faculty Publications

While many cattle feeding areas in the United States have long dealt with high sulfate water, increased feeding of ethanol co-products such as distillers grains with solubles to beef cattle has led to a corresponding increase in dietary sulfur. As a result, sulfur metabolism in the ruminant has been the focus of many research studies over the past ten years, and advances in our knowledge have been made. Excessive sulfur in cattle diets may have implications on trace mineral absorption, dry matter intake, and overall cattle growth. This review will focus on what we have learned about the metabolism of …

Qtls Associated With Dry Matter Intake, Metabolic Mid-Test Weight, Growth And Feed Efficiency Have Little Overlap Across 4 Beef Cattle Studies, Mahdi Saatchi, Jonathan E. Beever, Jared E. Decker, Dan B. Faulkner, Harvey C. Freetly, Stephanie L. Hansen, Helen Yampara-Iquise, Kristen A. Johnson, Stephen D. Kachman, Monty S. Kerley, Jaewoo Kim, Daniel D. Loy, Elisa Marques, Holly L. Neibergs, E. John Pollak, Robert D. Schnabel, Christopher M. Seabury, Daniel W. Shike, W. M. Snelling, Matthew L. Spangler, Robert L. Weaber, D. J. Garrick, Jeremy F. Taylor

Department of Animal Science: Faculty Publications

Background: The identification of genetic markers associated with complex traits that are expensive to record such as feed intake or feed efficiency would allow these traits to be included in selection programs. To identify large-effect QTL, we performed a series of genome-wide association studies and functional analyses using 50 K and 770 K SNP genotypes scored in 5,133 animals from 4 independent beef cattle populations (Cycle VII, Angus, Hereford and Simmental × Angus) with phenotypes for average daily gain, dry matter intake, metabolic mid-test body weight and residual feed intake.

Results: A total of 5, 6, 11 and 10 significant …

Variation In Time And Magnitude Of Immune Response And Viremia In Experimental Challenges With Porcine Circovirus 2b, Taylor B. Engle, Erin E. Jobman, Timonthy W. Moural, Autumn M. Mcknite, Justin W. Bundy, Sarah Y. Barnes, Emily H. Davis, Judith A. Galeota, Thomas E. Burkey, Graham S. Plastow, Stephen D. Kachman, Daniel C. Ciobanu

Department of Animal Science: Faculty Publications

Background: Porcine circovirus 2 is the primary agent responsible for inducing a group of associated diseases known as Porcine Circovirus Associated Diseases (PCVAD), which can have detrimental effects on production efficiency as well as causing significant mortality. The objective of this study was to evaluate variation in viral replication, immune response and growth across pigs (n = 974) from different crossbred lines. The approach used in this study was experimental infection with a PCV2b strain of pigs at an average of 43 days of age.

Results: The sequence of the PCV2b isolate used in the challenge was similar with a …

Quantitative Trait Loci For Energy Balance Traits In An Advanced Intercross Line Derived From Mice Divergently Selected For Heat Loss, Larry J. Leamy, Kari Elo, Merlyn K. Nielsen, Stephanie R. Thorn, William Valdar, Daniel Pomp

Department of Animal Science: Faculty Publications

Obesity in human populations, currently a serious health concern, is considered to be the consequence of an energy imbalance in which more energy in calories is consumed than is expended. We used interval mapping techniques to investigate the genetic basis of a number of energy balance traits in an F₁₁ advanced intercross population of mice created from an original intercross of lines selected for increased and decreased heat loss. We uncovered a total of 137 quantitative trait loci (QTLs) for these traits at 41 unique sites on 18 of the 20 chromosomes in the mouse genome, with X-linked QTLs …

Effects Of Grazing On Nebraska Sandhills Meadow Forage Nutrient Content, Jared V. Judy, Jacki A. Musgrave, L. Aaron Stalker Stalker, Karla H. Jenkins, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

Nebraska Sandhills subirrigated meadow pastures were utilized to measure the effects of grazing on forage nutrient content in summer pastures. Pre-grazed pastures had greater protein and in vitro dry matter digestibility levelsand lower neutral detergent fiber levels compared with post-grazed pastures early in the grazing season. By late July, post-grazed vs. pre-grazed pastures did not differ in in vitro dry matter digestibility and neutral detergent fiber levels. Observed results indicate the greatest differences in nutrient content between post-grazed and pre-grazed pastures occur early in the grazing season.

G@Llinformed: Newsletter Of The Iucn-Ssc Galliformes Specialist Group 8-13 (2014-2017), Iucn Species Survival Commission Galliformes Specialist Group

Galliformes Specialist Group and Affiliated Societies: Newsletters

Issue 8 (April 2014)

From the Co-chairs, Peter Garson and Ilse Storch

Co-chairs advisory board members

G@llinformed letters and reports

The EAZA Cracid TAG: What about it? Cathy King

The EAZA Galliformes TAG update, Jan Dama

The last indigenous black-necked pheasant population of Europe, Christos Sokos and Periklis Birtsas

The ecological requirements of the spotted wood-quail Odontophorus guttatus in Noj K'a'ax Meen Elijio Panti National Park, Roni Martinez and Jack Clinton Eitniear

Honduran Ornithological Society-Ocellated Quail Conservation Project, Jack Clinton Eitniear

Venezuelan wood-quail: Request for information, Jack Clinton Eitniear

Hume’s pheasant in Nagaland, Lansothung Shitiri

Strategic conservation planning workshop for …

Wpa News 95 (2014), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Winter 2014), number 95

Published by the World Pheasant Association

Letter From The Dean, Michael Vayda

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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 …

Defining The Physiochemical, Biological And Habitat Requirements For The Upper Extant Of Oncorhynchus Mykiss Distribution, Emily Powers

Journal of Earth and Life Science

The distribution of rainbow trout is strongly influenced by their habitat. As climatic conditions change, the distribution of rainbow trout populations will change along with them. The objective of this study was to identify the particular habitat parameters that rainbow trout select for in this lotic system and to specifically assess how this relates to the upper extant of their distribution. By assessing the distribution of the upper extant specifically, future research may be conducted to better assess climatic changes on a small and/or large scale basis. A 9,000 m section of the Clearwater River was used as the study …

The Effects Of Angling Pressure On Northern Pike Size Structure, Ryan Carrow

Journal of Earth and Life Science

A number of conditions within a lake system can affect northern pike (Esox lucius) size structure. Of these conditions, the amount of angling pressure may have the biggest effect on the size structure of northern pike in Minnesota lake systems. In this study, five private and five public lakes were chosen near Bemidji, Minnesota. Each lake was fished for twenty angling hours using live northern hog suckers (Hypentelium nigricans) or golden shiners (Notemigonus crysoleucas). Total length (mm) and weight (kg) were measured for each northern pike caught. The number of fish houses that were …

Litter Deposition And Nitrogen Return In Rotationally Stocked Smooth Bromegrass Pastures, John A. Guretzky, Walter H. Schacht, Ana B. Wingeyer, Terry J. Klopfenstein, Andrea K. Watson

Department of Animal Science: Faculty Publications

Understanding how management systems impact nutrient cycling is important to pasture sustainability. From 2010 to 2011, we investigated how supplementation of beef cattle (Bos taurus) with corn (Zea mays L.) dried distillers grains plus solubles (DDGS) on unfertilized, rotationally stocked smooth bromegrass (Bromus inermis Leyss.) pasture (SUPP) affected the litter pool, residual herbage mass, litter deposition, and litter quality relative to unsupplemented beef cattle rotationally stocked on unfertilized control (CONT) and N-fertilized (FERT) smooth bromegrass pastures. As hypothesized based on management for greater herbage mass and animal demand during the grazing season, litter deposition was 48% …

Soil Organic Matter And Root And Rhizome Responses To Management Strategies In Smooth Bromegrass Pastures, John A. Guretzky, Ana B. Nuttelman, Walter H. Schacht, Terry J. Klopfenstein, Andrea K. Watson

Department of Animal Science: Faculty Publications

Soil organic matter (SOM) is a key component of pasture production. This is study investigated how management strategies that varied amount and form of N input in a long-term experiment affected concentrations and stocks of total-soil organic C and N, particulate organic carbon (POC), particulate organic nitrogen (PON), root and rhizome mass, C and N contents in topsoil of smooth bromegrass (Bromus inermis Leyss.) pastures with silty clay loam soils in a wet (2010) and dry (2012) year. Management strategies included: (i) unfertilized pasture grazed with unsupplemented beef cattle (CONT); (ii) unfertilized pasture grazed with dried distillers grains plus …

Analysis Of 28 Generations Of Selection For Reproduction, Growth, And Carcass Traits In Swine, W. L. Hsu, Rodger K. Robinson

Department of Animal Science: Faculty Publications

Selection (28 generations, G) in a Large White–Landrace composite population for traits aimed at increasing live pigs born per litter (BA), with additional selection for increased 180-d weight (WT180) and longissimus muscle area (LMA) and decreased back fat (BF10) in the last 8 generations, was practiced. Objectives herein were to estimate genetic and phenotypic responses and genetic parameters (n = 1,883 to 54,174) and to investigate whether a plateau in response for BA occurred. Line 2 (L2) was selected for an index of ovulation rate and embryo survival (G0 to G11), fully formed pigs (FF) per litter (G12 to 14), …

Comparative Digestibility By Cattle Versus Sheep: Effect Of Forage Quality, S. A. Soto-Navarro, R. Lancaster, C. Sankey, B. M. Capitan, B. P. Holland, L. A. Balstad, C. R. Krehbiel

Department of Animal Science: Faculty Publications

The objective was to determine the effect of forage quality on apparent total tract digestibility and ruminal fermentation in cattle versus sheep. Five yearling English crossbred (Hereford × Angus) steers (440.4 ± 35.6 kg of initial BW) and 5 yearling whiteface (Rambouillet × Columbia × Debouillet) wethers (44.4 ± 4.6 kg of initial BW), each fitted with a ruminal cannula, were randomly assigned to 1 of 3 forage sources within ruminant specie, and the study was conducted over 3 periods. For forage source, both animal and period served as the blocking factor with all forage sources represented once within each …

Effects Of Beef Production System On Animal Performance And Carcass Characteristics, C. L. Maxwell, C. R. Lopez, B. K. Wilson, B. T. Johnson, B. C. Bernhard, C. F. O'Neill, D. L. Vanoverbeke, G. G. Mafi, D. L. Step, C. J. Richards

Department of Animal Science: Faculty Publications

The objective of this study was to evaluate conventional (CONV) and natural (NAT) beef production systems from annual pasture through finishing through grazing. Beef steers (n = 180, initial BW = 250 ± 19 kg) were assigned randomly to 2 treatments in the pasture phase. Steers were implanted with 40 mg of trenbolone acetate (TBA), 8 mg estradiol, and 29 mg tylosin tartrate (CONV), or received no implant (NAT). Steers on the 2 treatments grazed wheat or cereal rye for 109 d. Conventional steers had an 18.5% improvement in ADG (1.22 vs. 1.03 kg/d, P < 0.01) and a heavier final BW (385 vs. 366 kg, P < 0.01) compared with NAT steers. Following the pasture phase, steers (n = 160 steers, 5 steers/pen, 8 pens/treatment) were assigned to a 2 × 2 factorial in the feedlot phase. Production system (NAT vs. CONV) was maintained from the pasture phase, and the second factor was 7 vs. 12% low-quality roughage (DM basis, LOW vs. HIGH). During finishing, CONV steers were given 120 mg of TBA and 24 mg estradiol at processing, fed monensin and tylosin, and fed zilpaterol hydrochloride for the last 20 d of the experiment. There were no program × roughage level interactions (P > 0.07). The CONV steers ate …

System And Method For Analyzing Properties Of Meat Using Multispectral Imaging, Jeyamkondan Subbiah, Chris Richard Calkins, Ashok Kumor Samal, Govindarajan Konda Naganathan

Department of Animal Science: Faculty Publications

A system and method for obtaining multispectral images of fresh meat at predetermined wavelength bands at a first time, subjecting the images to analysis in an image analysis system comprising a computer programmed to perform such analysis, and outputting a forecast of meat tenderness at a later point in time. Predetermined key wavelength bands are precorrelated with a high degree of prediction of meat tenderness and/or other properties of meat and are used in the multispectral system and method. A system and method for determining the key wavelengths is also disclosed. The multispectral imaging system and method is suitable for …

Western Immunoblotting In Avian Shell Gland Sample Immunoblotting Methods1, K.K. Hansen, R.J. Kittok, Gautam Sarath, Mary M. Beck

Department of Animal Science: Faculty Publications

Avian shell gland tissue was subjected to Western blot analysis using anti-human estrogen receptor- α antibody H222. Initial attempts to obtain consistent, high-quality blots were unsuccessful because, as it turned out, excessive lipid in tissue preparations interfered with protein separation. Incremental additions of acetone eventually proved to be the critical step in solubilizing lipids and allowing consistent separation of bands on gels. A detailed description of the methodology is presented.

Short-Term Effects Of Lower Oil Dried Distillers Grains With Solubles In Laying Hen Rations, Sheila E. Scheideler, Kathy Hanford, Brett Kreifels

Department of Animal Science: Faculty Publications

Extraction of oil from dried distillers grains has become a common practice among US ethanol producers. The valuable oil has been diverted to markets other than poultry feed, leaving new dried distillers grains with solubles (DDGS) products higher in fiber and purportedly lower in ME. This study compared 3 DDGS products with 10.3, 7.3, or 5.2% ether extract, respectively, with a corn-soy control ration in young Bovan laying hens for a feeding period from 20 to 33 wk of age. The DDGS was fed at the rate of 20% of the ration. Lower oil content of DDGS had no effect …

Miscellaneous Fish Helminth Parasite (Trematoda, Cestoidea, Nematoda, Acanthocephala) Records From Arkansas, C. T. Mcallister, C. R. Bursey, H. W. Robison, D. A. Neely, M. B. Connior, M. A. Barger

Journal of the Arkansas Academy of Science

Between June 2012 and January 2014, 147 fishes (10 species) within five families were collected from watersheds in 8 counties of Arkansas and examined for helminth parasites. Almost every fish species examined harbored at least one or more helminth parasite, including 5 trematodes (Alloglossidium sp., Plagioporus sp., Crepidostomum sp., Clinostomum marginatum and unknown metacercaria), 2 cestodes (unknown cyclophyllidean cysticerci and Corallotaenia parva), 3 nematodes (Spiroxys sp., Capillaria catostomi, and Eustrongylides sp.), and 3 acanthocephalans (unknown cystacanths, Neoechinorhynchus sp., and Leptorhynchoides sp.). We document 16 new host and 2 new distributional records for these helminths. In addition, this is the first …

New Host And Distribution Records Of The Leech Placobdella Multilineata Moore, 1953 (Hirudinida: Glossiphoniidae), W. E. Moser, D. J. Richardson, C. T. Mcallister, J. T. Briggler, C. I. Hammond, S. E. Trauth

Journal of the Arkansas Academy of Science

No abstract provided.

Lactational Performance Of Dairy Cows Fed Yeast Derived Microbial Protein In Low And High Forage Diets, Angela Kristia Manthey

Electronic Theses and Dissertations

The objective of this study was to investigate the effect of substituting soybean meal products with yeast-derived microbial protein [(YMP) DEMP; Alltech Inc., Nicholasville, KY] in diets containing two forage concentrations. Sixteen Holstein cows (4 primiparous and 12 multiparous) were randomly assigned to a replicated 4 × 4 Latin square in a 2 × 2 factorial arrangement of treatments. Diets contained low (LF; 45% of diet DM) or high forage (HF; 65% of diet DM) and YMP at 0 (NYMP) or 2.25% (WYMP) of the diet. The forage mix consisted of 67% corn silage and 33% alfalfa hay (DM basis). …

The Effects Of Maternal Energy Restriction During Mid-Gestation On Growth Performance, Immune Function, And Gene Expression In The Resultant Beef Offspring, Anna Rose Taylor

Electronic Theses and Dissertations

Fetal or developmental programming evaluates the effects of maternal alterations on the developing fetus and the potential consequences later in life. To understand the effects of mid-gestation energy restriction on beef cows and their calves the objectives of this dissertation were to determine the effects of dietary energy restriction on measurements associated with cow energy status, and the effects on growth performance, the humoral immune response, and subcutaneous adipose tissue gene expression in the resultant beef offspring. Pregnant beef cows were allotted into 2 treatment groups during mid-gestation: 1) fed at maintenance (Positive Energy Status (PES)); or 2) fed just …

First Record Of Ribbon Worms (Nemertea: Tetrastemmatidae: Prostoma) From Arkansas, P. G. Davison, H. W. Robison, C. T. Mcallister

Journal of the Arkansas Academy of Science

No abstract provided.

New Records And Notes On The Ecology Of The Northern Long-Eared Bat (Myotis Septentrionalis) In Arkansas, D. Blake Sasse, M. L. Caviness, M. J. Harvey, J. L. Jackson, P. N. Jordan, T. L. Klotz, P. R. Moore, R. W. Perry, R. K. Redman, T. S. Risch, D. A. Saugey, J. D. Wilhide

Journal of the Arkansas Academy of Science

No abstract provided.

Differential Responding By Rhesus Monkeys (Macaca Mulatta) And Humans (Homo Sapiens) To Variable Outcomes In The Assurance Game, Audrey E. Parrish, Sarah F. Brosnan, Bart J. Wilson, Michael J. Beran

Economics Faculty Articles and Research

Behavioral flexibility in how one responds to variable partner play can be examined using economic coordination games in which subjects play against a variety of partners and therefore may need to alter their behavior to produce the highest payoff. But how do we study this behavioral flexibility once players have settled on a response? Here, we investigated how responding by rhesus monkeys (Macaca mulatta) and humans (Homo sapiens) playing a computerized single-player version of a coordination game, the Assurance game, changed as a function of the variable responses (Stag/Hare) generated by multiple simulations (SIMs). We were interested in whether individuals …

Variations In Intra- And Interspecific Response To Mobbing Calls By The Black-Capped Chickadee (Poecile Atricapillus), Katerina M. Faust

Honors Theses

Mobbing calls are produced by a variety of bird species in response to predator sightings. These mobbing calls often function in intraspecific recruitment, but have recently been shown to have an interspecific response component as well. The mobbing calls produced by the Black-capped Chickadee (Poecile atricapillus) are distinct and encode information about the threat level of the predator. Conservation biologists often use playbacks of chickadee mobbing calls to detect species of birds and numbers of individuals in an area with higher accuracy than counts conducted without the use of playbacks. In this study, the factors that could potentially …

The Role Of Underutilized Fish In New England's Seafood System, Taylor Witkin

Honors Theses

The global fisheries crisis has led to an increasing recognition for the need to relieve pressure on overfished, popular food fish stocks. Opportunities exist to shift consumer demand toward more sustainable choices, including fish that may be locally abundant. Attempts have been made to market underused fish (sometimes termed “trash fish”) that represent more sustainable alternatives; however, it is unclear whether consumers will choose to purchase these more sustainable options, particularly if underused fish are also unfamiliar. Chapter 1 reviews existing research and current issues surrounding sustainable seafood and the recent shift toward local, abundant, undervalued species in New England’s …

Effects Of Infectious Bursal Disease (Ibd) On Shank Length And Diameter, Body Weight And Mortality In Broiler Breeder At Rearing Period, Ahmad Salahi, Mozhdeh Moosanezhad Khabisi, Ali Anissian

Turkish Journal of Veterinary & Animal Sciences

Shank length is used as a tool for the determination of fertility, body weight, estimates of frame size, and the monitoring of growth and development of pullets. This study was carried out to investigate the effects of infectious bursal disease (IBD) on shank length, diameter, body weight, shank length and body weight growth curves, and mortality rate in males and females in the rearing period in broiler breeder flocks. In this study, 2 broiler breeder flocks (Ross 308 flocks) and 800 breeder chicks (both females and males) were selected for shank length and diameter assessments. All the management, nutrition, and …