Animal Sciences Commons^™

Effects Of Age, Weight, And Fat Slaughter End Points On Estimates Of Breed And Retained Heterosis Effects For Carcass Traits, A. Ríos-Utrera, L. V. Cundiff, K. E. Gregory, R. M. Koch, M. E. Dikeman, M. Koohmaraie, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

The influence of different levels of adjusted fat thickness (AFT) and HCW slaughter end points (covariates) on estimates of breed and retained heterosis effects was studied for 14 carcass traits from serially slaughtered purebred and composite steers from the US Meat Animal Research Center (MARC). Contrasts among breed solutions were estimated at 0.7, 1.1, and 1.5 cm of AFT, and at 295.1, 340.5, and 385.9 kg of HCW. For constant slaughter age, contrasts were adjusted to the overall mean (432.5 d). Breed effects for Red Poll, Hereford, Limousin, Braunvieh, Pinzgauer, Gelbvieh, Simmental, Charolais, MARC I, MARC II, and MARC III …

Block And Bridle Annual, 2006

Block and Bridle Annual (1933–2021)

Table of Contents:

Block & Bridle History
Historian’s Welcome
President’s Address
Animal Science Department Chairman Address
Animal Science Faculty
Membership List
Block & Bridle Members
Block & Bridle Officers
Block & Bridle Initiates
Block & Bridle Advisors
Block & Bridle Seniors
2004-2005 Honors Banquet
Calendar of Events
Treasurer Report
Secretary Report
Programs
Socials
Beef Pit
Big Red Welcome
State Fair Herdsmanship
Steak Fry
National Convention
Little Ak-Sar-Ben
Kid’s Day
Holiday Gathering
Big Red Beef Show
Little MAEC
Agricultural Education Contests
2006 Honoree
Honors Banquet
Block & Bridle Members
Livestock Judging Team
Meats Judging Team
MAEC Team
Horse Judging Team
Equestrian …

2006 Nebraska Swine Report, Duane Reese

Nebraska Swine Reports

Table of Contents
Production Management
• Impact of Repeated Out-of-Feed Events and Fineness of Grind on Grow-Finish Performance
• The Case Against Evening-Up Litters Until Weaning
• Patterns of Drinking Water Use in Pork Production Facilities

Business Management
• Producers' Management

Odor Issues
• Odor Footprint Tool Progress: Regional Output Resources

Reproduction
• Freezing Swine Embryos: Do Success Rates Differ Between Breeds?
• Regulation of Pituitary Gene Expression in Lines of Swine with Different Ovulation Rates

Nutrition
• Effect of Diet and Sire Line on Crow-Finish Performance
• Effects of Feeding Increased Levels of Vitamin B12 to Weaning Pigs
• …

Grouse News 31-40 (2006-2010), World Pheasant Association, Birdlife International, Iucn Ssc Grouse Specialist Grop

Galliformes Specialist Group and Affiliated Societies: Newsletters

Issue 31 (May 2006)

Editorial 2 From the Chair 2 Research Reports Capercaillie as a tool of forest planning and as an indicator of forest environment quality 4 A Study of Caucasian black grouse Tetrao mlokosiewiczi population dispersion confined in Iran 5 A habitat and habitat-connectivity model for capercaillie Tetrao urogallus in the Black Forest as a tool for sustainable conservation planning (a PhD project in progress) 9 Clarifying the Status of the Caucasian black grouse Tetrao mlokosiewiczi – methodical approach 11 Could competition with ungulates be a limiting factor for Cantabrian capercaillie? A new Ph.D. project 15 Current status …

Wpa News 76 (2006), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Winter 2006), number 76

Published by the World Pheasant Association

Spatial Analyses Of Trophic Linkages Between Basins In The Great Salt Lake, Wayne A. Wurtsbaugh, David Naftz, Shane Bradt

Watershed Sciences Faculty Publications

Although the Great Salt Lake is frequently treated as if it were a single body of water, the natural bays and transportation causeways have divided it into a system of four bays. The bays, however, do not function independently because water, nutrients and other contaminants flow between them. The purpose of our study was to analyze the water quality in three of the bays (Farmington, Bear River and Gilbert), to determine fluxes of nutrients between them, and to determine how this was influencing brine shrimp populations in the lake. Discharge and nutrient concentrations were measured at constrictions separating the three …

Effects Of Pre- And Postpartum Nutrition On Reproduction In Spring Calving Cows And Calf Feedlot Performance, Leslie Aaron Stalker, Don C. Adams, Terry J. Klopfenstein, D. M. Feuz, Richard N. Funston

Department of Animal Science: Faculty Publications

Crossbred, spring-calving cows (yr 1, n = 136; yr 2, n = 113; yr 3, n = 113) were used in a 3- yr experiment to evaluate the influence of supplemental protein prepartum and grazing subirrigated meadow postpartum on pregnancy rates and calf feedlot performance. A 2 × 2 factorial arrangement of treatments was used in a switchback design. From December 1 to February 28, cows grazed dormant upland range in 8 pastures (32 ± 2 ha each). The equivalent of 0.45 kg of supplement/cow per d (42% CP) was provided to half of the cows on a pasture basis …

Benchmarking Carcass Characteristics And Muscles From Commercially Identified Beef And Dairy Cull Cow Carcasses For Warner-Bratzler Shear Force And Sensory Attributes, A. M. Stelzleni, L. E. Patten, D. D. Johnson, Chris R. Calkins, B. L. Gwartney

Department of Animal Science: Faculty Publications

The objective of this study was to benchmark carcasses and muscles from commercially identified fed (animals that were perceived to have been fed an increased plane of nutrition before slaughter) and nonfed cull beef and dairy cows and A-maturity, USDA Select steers, so that the muscles could be identified from cull cow carcasses that may be used to fill a void of intermediately priced beef steaks. Carcass characteristics were measured at 24 h postmortem for 75 carcasses from 5 populations consisting of cull beef cows commercially identified as fed (B-F, n = 15); cull beef cows commercially identified as nonfed …

Flavor Relationships Among Muscles Form The Beef Chuck And Round, J. L. Meisinger, J. M. James, Chris R. Calkins

Department of Animal Science: Faculty Publications

This research compared off-flavor notes and the relationship of pH and heme-iron content to off-flavor for different beef muscles. After grading, knuckles and shoulder clods were removed from 16 USDA Choice and 14 USDA Select beef carcasses, vacuum- packaged, and aged for 7 d. The rectus femoris (REC), vastus medalis (VAM), vastus lateralis (VAL), teres major (TER), infraspinatus (INF), and triceps brachii-long head (TRI) were separated, cut into steaks, and frozen (−16°C). Sensory analysis was conducted using a trained taste panel, with steaks grilled to an internal temperature of 65°C. Heme-iron concentration and pH were determined. The INF had lower …

Consumer Sensory Acceptance And Value Of Wet-Aged And Dry-Aged Beef Steaks, B. M. Sitz, Chris R. Calkins, D. M. Feuz, W. J. Umberger, Kent M. Eskridge

Department of Animal Science: Faculty Publications

To determine sensory preference and value of fresh beef steak differing in aging technique, strip steaks were evaluated by consumers in Denver (n = 132 consumers) and Chicago (n = 141 consumers). Wet-aged Choice strip loins were matched with dry-aged Choice strip loins, whereas wet-aged Prime strip loins were matched with dry-aged Prime strip loins. Dry-aged strip loins were commercially aged in air in a controlled environment for 30 d and vacuum-aged for 7 d during shipping and storage. Wet-aged strip loins were vacuum-packaged and aged for 37 d in a 1°C cooler. Pairs of strip loins were matched to …

Environmental Factors Influencing Heat Stress In Feedlot Cattle, Terry L. Mader, M. S. Davis, Tami Brown-Brandl

Department of Animal Science: Faculty Publications

Data from 3 summer feedlot studies were utilized to determine the environmental factors that influence heat stress in cattle and also to determine wind speed (WSPD; m∙s^-1) and solar radiation (RAD; W∙m^-2) adjustments to the temperature-humidity index (THI). Visual assessments of heat stress, based on panting scores (0 = no panting to 4 = severe panting), were collected from 1400 to 1700. Mean daily WSPD, black globe temperature at 1500, and minimums for nighttime WSPD, nighttime black globe THI, and daily relative humidity were found to have the greatest influence on panting score from 1400 to …

The Effect Of Carbohydrate Source On Nitrogen Capture In Dairy Cows On Pasture, A. M. Gehman, J. A. Bertrand, T. C. Jenkins, B. W. Pinkerton

Department of Animal Science: Faculty Publications

The objective of this study was to determine if feeding carbohydrate supplements with faster degradation rates than corn to dairy cows grazing ryegrass would improve nitrogen capture, milk production, and components. Treatments were grain supplements based on: 1) corn (CORN), 2) barley and molasses (BM), or 3) citrus pulp and molasses (CM). For BM and CM, the diet composition was the same as that of CORN except that a portion of the corn was replaced with barley and molasses or citrus pulp and molasses, respectively, on a dry matter basis. Cows grazed ryegrass (Lolium multiflorum Lam.) pasture. Yield of …

Milk Production Of Dairy Cows Fed Wet Corn Gluten Feed During The Dry Period And Lactation, Paul J. Kononoff, S. K. Ivan, W, Matzke, R. J. Grant, R. A. Stock, Terry J. Klopfenstein

Department of Animal Science: Faculty Publications

An experiment was conducted with 36 primiparous and 40 multiparous Holstein cows to examine the effects of feeding wet corn gluten feed (WCGF) on 305- d milk production, dry matter (DM) intake, body condition score (BCS), and health. The experimental treatments included: 1) control—WCGF not fed (n = 27); 2) WCGF-L—cows received diets containing WCGF (38% DM basis) during lactation (n = 23); and 3) WCGFDL— cows received diets containing WCGF (38% DM basis) during the dry period and lactation (n = 26). During the dry period, cows consuming WCGF were observed to have a significant gain in BCS (0.07 …

Sorting Strategies For Long Yearling Cattle Grown In An Extensive Forage Utilization Beef Production System, James C. Macdonald, T. J. Klopfenstein, G. E. Erickson, C. N. Macken, J. D. Folmer, M. P. Blackford

Department of Animal Science: Faculty Publications

One hundred sixty English-cross steers (244 kg, SD=23 kg) were used in each yr of a 2-yr study to determine effects of sorting on performance, carcass characteristics, variability, and profitability in a long yearling system utilizing ranch-source calves. Steers were back grounded during winter then grazed smooth brome-grass pastures followed by warm season native range prior to entering the feedlot in the fall. Steers were stratified by BW and allotted to 1 of 4 treatments: 1) 40 head sorted by pre-grazing BW where heavy steers entered the feedlot in July (PST), 2) 40 head sorted by BW entering the feedlot …

Effects Of Corn Processing Method And Protein Concentration In Finishing Diets Containing Wet Corn Gluten Feed On Cattle Performance, C. N. Macken, G. E. Erickson, T. J. Klopfenstein, R. A. Stock

Department of Animal Science: Faculty Publications

Three hundred twenty crossbred steer calves (308 kg) were used to determine the effects of corn processing and addition of urea on performance with diets containing wet corn gluten feed (WCGF). The treatment design was a 5 × 2 factorial with factors of corn processing (dryrolled, DRC; fine-ground, FGC; rolled high-moisture, RHMC; ground high-moisture, GHMC; or steam-flaked corn, SFC) and CP concentration (14 or 15%) with 4 pens per treatment and 8 steers per pen. The final diet contained 60% corn, 25% WCGF, 10% corn silage, and 5% supplement (DM basis). No significant protein × grain processing interactions occurred for …

Influence Of Corn Hybrid Traits On Digestibility And The Efficiency Of Gain In Feedlot Cattle, S. L. Jaeger, Matt K. Luebbe, C. N. Macken, Galen E. Erickson, Terry J. Klopfenstein, W. A. Fithian, David S. Jackson

Department of Animal Science: Faculty Publications

Two experiments were conducted to determine the influence of chemical and physical corn kernel traits on digestibility and feedlot cattle performance. Seven commercially available corn hybrids representing a range in kernel traits were evaluated for a variety of chemical and physical traits that included test weight, 1,000-grain weight, kernel size, starch, CP, amylose, Stenvert Hardness tests (kernel hardness traits), tangential abrasive dehulling device loss, 12-h in vitro starch disappearance, and rate and extent of in situ DM disappearance. Differences among hybrids existed for all physical kernel traits measured. In Exp. 1, 224 steers in 28 pens were fed the same …

Effects Of Age, Weight, And Fat Slaughter End Points On Estimates Of Breed And Retained Heterosis Effects For Carcass Traits, A. Ríos-Utrera, L. V. Cundiff, K. E. Gregory, R. M. Koch, M. E. Dikeman, M. Koohmaraie, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

The influence of different levels of adjusted fat thickness (AFT) and HCW slaughter end points (covariates) on estimates of breed and retained heterosis effects was studied for 14 carcass traits from serially slaughtered purebred and composite steers from the US Meat Animal Research Center (MARC). Contrasts among breed solutions were estimated at 0.7, 1.1, and 1.5 cm of AFT, and at 295.1, 340.5, and 385.9 kg of HCW. For constant slaughter age, contrasts were adjusted to the overall mean (432.5 d). Breed effects for Red Poll, Hereford, Limousin, Braunvieh, Pinzgauer, Gelbvieh, Simmental, Charolais, MARC I, MARC II, and MARC III …

Aquatic Macroinvertebrates Of The Strawberry River System In North-Central Arkansas, George L. Harp, Henry W. Robison

Journal of the Arkansas Academy of Science

The Strav/berry River has been designated an Extraordinary Resource Water, an Ecologically Sensitive Water Body, and a Natural and Scenic Waterway. As such, it is particularly important that the biodiversity of this river system be documented thoroughly. The purpose of this research was to develop a comprehensive list of the aquatic macroinvertebrates of the Strawberry River and its major tributaries. The information was developed from a thorough literature review and by examining specimens housed in various collections of the Arkansas State University Museum of Zoology and collections of the authors. The latter included 9 collections at 4 sites along the …

Status And Distribution Of The Arkansas Darter (Etheostoma Cragini) In Arkansas, Brian K. Wagner, Mark D. Kottmyer

Journal of the Arkansas Academy of Science

The Arkansas darter, Etheostoma cragini, has an extremely limited distribution in Arkansas and is designated as a andidate for listing under the Endangered Species Act. It was first discovered in the state in 1979 in Wilson Spring near Fayetteville and has since been found in4 additional headwater streams in Benton and Washington counties prior to this study. A study in 1997 (bund the species in3 of the 5 historic streams, but one stream yielded only a single individual. This study sought to reassess the status of the 5 historically known populations and sample additional spring-run habitats in the Arkansas River …

Documentation Of The First Known Occurrence Of The Broad-Billed Hummingbird (Cynanthus Latirostris) In Arkansas, Robert H. Doster, Dan Scheiman, E. Pershing Floyd, Kenny Nichols, Ladonna Nichols

Journal of the Arkansas Academy of Science

No abstract provided.

The Winter Ecology Of The Piping Plover (Charadrius Melodus) In Coastal Georgia, Brandon Lennon Noel

College of Graduate Studies: Theses & Dissertations

Author's abstract: The Piping Plover (Charadrius melodus) is a federally listed species with three distinct breeding populations, including Great Plains (threatened), Great Lakes (endangered), and Atlantic Coast (threatened), all of which winter along the Atlnatic and Gulf coasts of the United States. I studied the winter ecology of the Piping Plovers on Little St. Simons Island (LSSI), Georgia, from 2003-2006, with emphasis on the conservation significance of this site for the endangered Great Lakes population. During 2003-2004 and 2004-2005, LSSI supported up to 100 Piping Plovers during peak migration, and approximately 40 birds wintered at this site. All populations had …

Letter From The Dean, Gregory J. Weidemann

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

No abstract provided.

Ichthyofaunal Assemblages In Three Approximate But Ecologically Diverse Streams In Clark County, Arkansas, C. Renn Tumlison, Scott Jordan, Lesley Self, Henry W. Robison

Journal of the Arkansas Academy of Science

Three tributaries to the Ouachita River in eastern Clark County, Arkansas, empty into the river within a collective distance of about 9 km. The streams drain basins derived from the Wilcox formation, partially overlain by terrace and alluvial deposits. Despite their proximity, the streams are very different: L'Eau Frais has a gravel substrate and was recognized by the French as a cool water stream, Tupelo Creek is a bottomland stream from which numerous Water Tupelo (Nyssa aquatica) emerge, and Saline Bayou was named due to its marked salinity. We studied the assemblages of fishes in these 3 very different drainages …

Noteworthy Geographic Distribution Records For The Golden Topminnow, Fundulus Chrysotus (Cyprinodontiformes: Fundulidae), From Arkansas, Chris T. Mcallister, Henry W. Robison, Thomas M. Buchanan

Journal of the Arkansas Academy of Science

No abstract provided.

Salinity Controls Phytoplankton Response To Nutrient Enrichment In The Great Salt Lake, Utah, Usa, Amy M. Marcarelli, Wayne A. Wurtsbaugh, O. Griset

Watershed Sciences Faculty Publications

To examine how salinity and nutrient supply interact to control phytoplankton community composition, nutrient limitation, and dinitrogen (N2) fixation rates in the Great Salt Lake (Utah, USA), we conducted a series of bioassay experiments with plankton from both Gilbert Bay, where salinities are near 160 g·L–1, and Farmington Bay, where salinities range from 10 to 90 g·L–1. Six-day nutrient addition bioassay experiments showed that the extant phyto plankton communities in both bays were limited by nitrogen (N). However, in 28- to 30-day factorial bioassay experiments in which both salinities and nutrient supply were manipulated, phosphorus stimulated chlorophyll a as much …

Proceedings Of The Western Australian Dhufish Workshop 2004, Mark Pagano, Terry Fuller

Fisheries Occasional Publications

The Western Australian Dhufish Workshop 2004 was a joint project between Recfishwest and the Western Australian Department of Fisheries.

The workshop incorporated presentations from the Department of Fisheries, Recfishwest, the Western Australian Fishing Industry Council, Murdoch University and Challenger TAFE to showcase current knowledge relating to the iconic dhufish in Western Australia. The perspectives of a recreational fisher, a commercial wetline operator and a metropolitan charter boat operator were also presented.

Through information sharing and discussion the workshop provided a platform to better understand the fundamental issues that underpin current and future management arrangements for this valuable resource. Both commercial …

Calving And Preweaning Growth Performance Traits Of Calves Sired By Charolais, Simmental And Eastern Anatolian Red Bulls, Abdülkadi̇r Özlütürk, Mete Yanar, Naci̇ Tüzemen, Si̇nan Kopuzlu

Turkish Journal of Veterinary & Animal Sciences

Charolais (C)-, Simmental (S)-, and Eastern Anatolian Red (EAR)-sired calves born in 2 locations in Eastern Anatolia were compared in terms of calving traits and preweaning growth characteristics. Breed of sire effects were significant (P < 0.01) for birth weight, 205-day weaning weight, average daily weight gain from birth to weaning, and some body measurements at birth. S- and C-sired calves were heavier at birth and larger for most body measurements at birth than EAR-sired calves. The C- and S-sired calves also had higher 205-day weight than the EAR-sired calves. Although the level of calving difficulty was higher in the S and C crosses, the differences were not statistically significant. Male calves had significantly (P < 0.01) heavier birth and 205-day weights, higher preweaning average daily gain and greater body measurements (e.g., height at withers, heart girth and cannon bone girth) than females. Location differences were also significant (P < 0.01) for survival rate from birth to weaning, preweaning growth rate and 205-day weight. In conclusion, although C- and S-sired calves performed similarly for most traits, all parameters of the preweaning growth were higher in calves sired by S and C bulls than in calves sired by EAR bulls. Therefore, both C and S could be considered as sire breeds for crossbreeding programs to be implemented in Eastern Anatolia, since these breeds did not cause an adverse influence on the calving and growth traits of the crossbred calves.

Detection Of Early Stages Of Myxobolus Cerebralis In Fin Clips From Rainbow Trout (Onchorynchus Mykiss), Ramona T. Skirpstunas, J. Hergert, Thomas J. Baldwin

Animal, Dairy, and Veterinary Science Faculty Publications

A nested polymerase chain reaction (PCR) assay was used to detect early stages of Myxobolus cerebralis in caudal and adipose fin samples from rainbow trout (RT). To determine sensitivity, groups of 10 RT were exposed to 2,000 M. cerebralis triactinomyxons/fish for 1 hour at 15 degrees C and subsequently moved to clean recirculating water. Fish were held for 2 and 6 hours and 1, 2, 3, 5, 7, 10, 30, and 60 days before sampling by nonlethal fin biopsy. Nested PCR performed on fin clips showed that M. cerebralis DNA was detected in caudal fin tissue in 100% of fish …

Trained And Consumer Evaluations Of Five Different Beef Muscles With Or Without Ph Enhancement Using Ammonium Hydroxide, Tim Nath

The Journal of Undergraduate Research

Research was conducted in two phases: first to determine optimal pump percentage for each of five pH-enhanced beef muscles and then to determine the effect of pH enhancement on consumer acceptability of beef steaks. Phase I was a 5 x 4 factorial design with five muscles: longissimus lumborum (LL), gluteus medius (GM), triceps brachii (TB), biceps femoris (BF), and psoas major (PM) and four pump percentages: 0, 10, 20, and 30% to determine optimum pump percentage for each muscle using an 8- member trained sensory panel. Phase II was a 5 x 2 factorial design with the same five muscles …

The Vertebrate Fauna Of The Upper Permian Of Niger. Iv. Nigerpeton Ricqlesi (Temnospondyli: Cochleosauridae), And The Edopoid Colonization Of Gondwana, J. Sebastien Steyer, Ross Damiani, Christian A. Sidor, F. Robin O’Keefe, Hans C.E. Larsson, Abdoulaye Maga, Oumarou Ide

Biological Sciences Faculty Research

We describe the edopoid temnospondyl Nigerpeton ricqlesi from the Upper Permian Moradi Formation of northern Niger on the basis of two partial skulls and tentatively associated postcranial material. This crocodile-like taxon displays several edopoid characters states such as a long prenarial region with enlarged premaxillae, elongated vomers, large, posteriorly tapering choanae, and a jugal that broadens anteriorly. Nigerpeton possesses a unique carnivorous dentition. It is autapomorphic in its possession of an extremely elongate snout bearing a maxillary bulge that accommodates three hypertrophied caniniform teeth, inner premaxillary tusks, and anterior paired fenestrae, which pierce the skull roof. In addition, both the …