Animal Sciences Commons^™

Calf Branding/Processing Time And Beef Quality Assurance, Rob Eirich

Nebraska Beef Quality Assurance Program

It is spring and that means branding time across cattle country. As producers are finishing calving season and preparing for branding/processing, it is important to review Beef Quality Assurance (BQA) guidelines. Let's take a minute to look at the key BQA principles:

Audits And Assessments In Beef Cattle Production, Rob Eirich

Nebraska Beef Quality Assurance Program

Assessments and audits are becoming a part of doing business in beef cattle production, as we are seeing beef processors implementing third-party audits. Since beginning as the Nebraska Director of Beef Quality Assurance (BQA) in July, I have been studying and gathering information on the National Cattlemen's Beef Association (NCBA) Assessment Guides and third-party audits in the beef industry.

Nebraska Beef Quality Assurance: Focused On The Safety, Wholesomeness And Quality Of Beef

Nebraska Beef Quality Assurance Program

Across the nation, beef producers face the challenge of making a living from the land, while producing safe, wholesome beef. Beef that will provide a great eating experience each and every time for American and International consumers.

Exposure Of Workers To Dust And Bioaerosol On A Poultry Farm, Sheryll B. Jerez, Y. Cheng, Joey Bray

Faculty Publications

Poultry houses are known for generating excessive dust, which originates from bedding materials, fiberglass insulations, feed, dried fecal materials, and feather particles. Dust may contain microorganisms, including endotoxins, fungi, and bacteria, that may affect living things when inhaled. Dust that contains living organisms is referred to as bioaerosol, and its particle size may range from 0.5 to 100 µm. Respirable dust, which has an aerodynamic diameter of less than or equal to 4 µm, can travel to and be deposited in the gas-exchange region of the human respiratory system. This is of particular concern because of the greater health hazard …

Ua66/5 Department Of Agriculture 2014 Newsletter, Department Of Agriculture And Food Science

Agriculture Department Publications

Sections include:

Alumni

In Memory of Dr. David M. Coffey

Outstanding Agriculture Students

J Dominique Gumirakiza– Assistant Professor of Agricultural Economics

Students from the Department of Agriculture Study Developmental Issues in Andean Agriculture in Ecuador

Viticulture News

Turfgrass Management News

Internships at the Baker Arboretum

Southern Forages Authors Visit WKU

Agricultural Ambassadors

Agricultural Education News

Agriculture Students Striving for Effective Tomorrows (ASSET) Conference

WKU Dairy Challenge Team participates in 8th Annual Southern Regional Intercollegiate Dairy Challenge® Contest

WKU Dairy Challenge Team participates in 8th Annual Southern Regional Intercollegiate Dairy Challenge® Contest

Student Research– Assessment of Stress in Therapy Horses

Agronomy …

Letter From The Dean, Michael Vayda

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

No abstract provided.

Compost Bedded Pack Barns For Dairy Cattle: Bedding Performance And Mastitis As Compared To Sand Freestalls, Elizabeth A. Eckelkamp

Theses and Dissertations--Animal and Food Sciences

Lameness and mastitis are the two most costly diseases in the dairy industry. Reduction of these diseases through housing and management is beneficial. Compost bedded pack (CBP) and sand freestall barns were compared in a long-term, on-farm study to assess the effect of housing on each disease. Another research objective was to evaluate the effects of ambient weather conditions on moisture and 20 cm internal temperature of CBP. Compost bedded pack moisture, C:N ratio, and internal temperature effects on cleanliness, mastitis, and bedding bacterial counts were also considered. The last research objective was to evaluate the economics of bedding material …

The Effects That Liquid And Solid Cattle Manure Have On The Water Quality Of Drainage Ditches In Putnam County, Ohio, Janelle Horstman

Honors Projects

Lake Erie has experienced harmful algal blooms with increased frequency since the mid-1990s due to excess nutrients from Rivers, such as the Maumee River, and largely agricultural watersheds. Nonpoint source pollution from agriculture contributes to eutrophication, algal blooms, and the degradation of water quality. This creates stress on aquatic fauna, reduced aesthetic quality, odor, and limits of the water for usage of drinking, recreation, and industry. This research paper asks what the contributions of having access to manure application records, soil records, and information about antibiotics have on what is known about manure management and antibiotic resistance, which has been …

Handling Cattle Through High Heat Humidity Indexes, Rob Eirich

Nebraska Beef Quality Assurance Program

As cattlemen enter the summer months, they need to understand and deal with heat and humidity. Consider incorporating the following practices into management plans to help reduce additional stress.

Contents, Discovery Editors

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

No abstract provided.

Effectiveness Of A Farm Field Trip, Bonnie S. Sigmon

Theses and Dissertations--Community & Leadership Development

The annual Sigmon Farm Tour was started in 1992 as an agricultural education program where students could experience being on a farm with the goal of increasing the agricultural literacy levels of the participants. Every year the entire 4th grade student population of Rockcastle County spends the day touring the farm and participating in experiential mini lessons given by the cooperating farm service and health agencies. The program has continued for 20+ years without an evaluation as to whether it is achieving its objectives. This evaluation will also exhibit the programs strengths and weakness so it can continue to improve. …

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 15 2014, Several Authors

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

No abstract provided.

Growing South Dakota (Winter 2014), College Of Agriculture &. Biological Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

This issue contains the 2013 SDSU Agricultural Experiment Station Annual Report

[Page] 2 The World’s First: Collaborative Effort Produces Multi-Hybrid Planter To Advance Precision Ag
[Page] 4 70 Years Of Data: Ranchers Benefit From Long-Term Grazing Studies
[Page] 6 Better Beef: Fetal Programming Study Analyzes Effects Of Cow Nutrition On Meat Quality
[Page] 7 Winter College News
[Page] 8 Consumer Sciences, Animal Health, Livestock Marketing: Important Research Continues In These Areas
[Page] 10 Improving Human Health: Role Of Nondigestible Fiber, Antioxidants Studied To Prevent Disease
[Page] 11 Food Safety Focus: Targeting Heat-Resistant Microbes To Improve Dairy Products
[Page] 12 Engineering …

Effect Of Stocking Biomass On Solids, Phytoplankton Communities, Common Off-Flavors, And Production Parameters In A Channel Catfish Biofloc Technology Production System, Bartholomew W. Green, Kevin K. Schrader, Peter W. Perschbacher

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The effect of initial channel catfish (Ictalurus punctatus, Rafinesque, 1818) fingerling biomass (1.4, 1.8, or 2.3 kg m^-3) on phytoplankton communities, common off-flavours and stocker catfish production parameters was evaluated in biofloc technology production tanks. Stocker catfish size (145.5–172.6 g fish^-1) at harvest did not differ among treatments, but net yield increased linearly as initial biomass increased (R² = 0.633). Mean total feed consumption increased linearly with initial catfish biomass (R² = 0.656) and ranged from 10.7 to 15.8 kg m ^-3. Total suspended solids (TSS) in all treatments increased linearly …

Fate Of Antimicrobials And Antimicrobial Resistance Genes In Simulated Swine Manure Storage, Stacey R. Joy, Xu Li, Daniel D. Snow, John Gilley, Bryan L. Woodbury, Shannon L. Bartelt-Hunt

School of Natural Resources: Faculty Publications

The behavior of three antibiotics (bacitracin, chlortetracycline, and tylosin) and two classes of antibiotic resistance genes (ARGs), tet and erm, were monitored in swine manure slurry under anaerobic conditions. First-order decay rates were determined for each antibiotic with half-lives ranging from1 day (chlortetracycline) to 10 days (tylosin). ARGs were monitored in the swine manure slurry, and losses of approximately 1 to 3 orders of magnitude in relative abundance were observed during the 40 day storage period. First-order degradation profiles were observed for chlortetracycline and its corresponding resistance genes, tet(X) and tet(Q). Tylosin was degraded to approximately 10% …

The Cost Of Affordable Food, Candice L. Cobuzzi

SURGE

When someone puts a piece of food in front of me, I don’t just see a piece of food.

Instead, I see an innocent cow being cornered by a forklift and slaughtered, its limp, moist tissue hung on a long conveyer belt with hundreds of others.

I see hundreds of chemically-injected chickens packed into a dark barn with no hope of seeing sunlight in their lifetime.

I see immigrants pulled from their houses like criminals, taken away from the lives they’ve spent years building for themselves and their families, working for the same food company that courted them into the …

Northwest Arkansas Consumer Perceptions Of Poultry Production, Stuart Estes

Agricultural Education, Communications and Technology Undergraduate Honors Theses

Poultry production holds an important place in Arkansas economically and as a food source. The importance of poultry production ultimately hinges on the demands of the consumers and the perceptions that drive their purchases. With this in mind, this study surveyed consumers to assess their perceptions of poultry production in Arkansas. The instrument used to survey consumers was created by the researcher and an expert committee at the University of Arkansas. Consumers were interviewed through direct communication at grocery stores in northwest Arkansas. Data gathered from the study were analyzed for descriptive and correlational statistics. Data showed that consumers were …

Español A Inglés / English To Spanish: A Guide For Communication In Livestock Operations, Charles A. Shapiro, Leslie J. Johnson, John C. Fech, Paul Hay, Tom Holman, Larry Howard

University of Nebraska-Lincoln Extension: Historical Materials

Translated by: Rachel Albin, Dianne Danehey, Trevor Wright, and Alex Alpizar

Inglés/English * Cómo pronunciar la frase en Inglés * Español/Spanish * How to pronounce the phrase in Spanish

Numbers * General Communication * Locations * Weather * Colors * Days * Descriptions * Quantities * Feeding * Animal Health * Veterinary Terms * Manure Handling * Animals * General animal care

Effect Of Vacuum Tumbling Time, Salt Level, And Phosphate Alternatives On Processing Characteristics Of Natural Deli-Style Turkey Breast, Derek J. Schroeder

Department of Animal Science: Dissertations, Theses, and Student Research

Three studies were conducted to determine the effect of vacuum tumbling time on the processing characteristics of reduced sodium natural deli-style turkey breast. Production of sodium reduced natural deli-style turkey breast without phosphate is lower (P <  0.05) in texture and processing properties than deli-style turkey breast produced with phosphate. Reducing salt concentration to 1.0% produces natural deli-style turkey breast with less acceptable (P <  0.05) texture and processing characteristics compared to 1.5% or 2.0% added salt. Preblending was used to improve texture characteristics in reduced salt products. Control treatments had improved (P <  0.05) texture properties, decreased color values, …

Evaluation Of Oil Extraction On Corn Dry-Milling Byproducts In Growing And Finishing Cattle Diets, Melissa L. Jolly

Department of Animal Science: Dissertations, Theses, and Student Research

Dry-milling ethanol plants produce distillers grains (DG) and condensed distillers solubles (CDS). Before thin stillage is evaporated to CDS, corn oil is removed via centrifugation, producing de-oiled CDS. Depending on plant availability, CDS can be marketed or combined with DG to produce de-oiled distillers grains plus solubles (DGS). Currently, there are no data available on animal performance when corn oil is removed via centrifugation of the solubles stream. Therefore, two finishing experiments, a metabolism experiment, and a growing experiment were conducted to evaluate the effects of corn oil removal on cattle performance, carcass characteristics, and the effects on nutrient digestibility. …

Effects Of Maternal Nutrition And Post-Weaning Management In A Late Spring Calving System And Synchronization Of Estrus Using Fixed Time Ai Protocols, John D. Harms

Department of Animal Science: Dissertations, Theses, and Student Research

Three experiments were conducted to determine the impact of development systems, maternal protein supplementation, and estrus synchronization systems on beef cattle. Experiment 1 evaluated the effects of winter supplementation on cow performance and the effects of post-weaning management on progeny. Late spring calving cows grazed dormant range or meadow over winter and received either supplementation or no supplementation. Steer and heifer progeny were weaned and placed on dormant meadow or fed hay ad libitum. One half of the steers were placed in the feedlot at the end of treatment and the other half grazed range over summer. Cow winter treatment …

Transcriptional Regulation Of The Porcine Gnrh Receptor Gene By Glucocorticoids, Chanho Lee

Department of Animal Science: Dissertations, Theses, and Student Research

Binding of GnRH to its receptor (GnRHR) stimulates the synthesis and secretion of the gonadotropins, as well as up-regulation of GnRHR. Thus, the interaction between GnRH and GnRHR represents a central point for regulation of reproduction. Glucocorticoids alter reproduction by reducing GnRH responsiveness of gonadotropes within the anterior pituitary gland, potentially via transcriptional regulation of the GnRHR gene. Investigation into this mechanism, however, revealed that the murine GnRHR gene was stimulated by glucocorticoids. To determine the effect of glucocorticoids on porcine GnRHR gene expression, gonadotrope-derived αT3-1 cells were transiently transfected with a vector containing 5118 bp of 5’ flanking sequence …

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2011, Leah English, Jennie Popp, Wayne Miller

AAES Research Reports and Research Bulletins

This report is the eighth in a series of reports examining agriculture’s economic contribution on the Arkansas economy. Utilizing data from the United States Bureau of Economic Analysis (BEA), USDA Economic Research Service (ERS), USDA National Agricultural Statistics Service (NASS), and Minnesota IMPLAN Group, Inc. (MIG), the economic contribution of agriculture on the Arkansas economy was estimated for the most recent year available, 2011. The total economic contribution of agriculture (direct, indirect, and induced effects) to value added, employment, and labor income was estimated using the Impact Analysis for Planning System (IMPLAN). The economic contributions of agricultural production and processing …

Growing South Dakota (Fall 2013), College Of Agriculture &. Biological Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Crop Watchers: Plant Science Department Research Efforts Strive To Enhance Farming Practices
[Page] 5 Profiles In Leadership: David Wright; Collegiate Leadership Matters
[Page] 6 Fall Collegiate News
[Page] 8 Opportunities To Explore: College’s Summer Camps Help Spark Career Interests
[Page] 10 Collaborative Campaign: Sales Of Cull Cows Helping Fund New SDSU Cow-Calf Facility
[Page] 12 Notable
[Page] 13 A Message From The SDSU Foundation

Genes With Physiological Roles In Callipyge Muscle Hypertrophy, Hui Yu

Open Access Dissertations

Callipyge sheep is an excellent model to study genes regulation in muscle growth since the up-regulation of DLK1 and/or RTL1 results in extreme postnatal muscle hypertrophy in loin and hindquarters. DLK1 and/or RTL1 are the primary inducers of muscle hypertrophy due to the inheritance model for the callipyge phenotype. The overall aim of this dissertation is to study the physiological pathways responding to the up-regulation of DLK1 and / or RTL1 in the hypertrophied muscles. Microarray analysis of gene expression identified 375 genes that were differentially expressed in callipyge semimembranosus. Twenty-five transcripts were further verified by quantitative PCR in two …

Amino Acid Supply And Utilization With Emphasis On Lysine And Impacts On Lactation Responses Of Dairy Cows Fed Rations Containing Distillers’ Dried Grains With Solubles, Henry Paz

Department of Animal Science: Dissertations, Theses, and Student Research

Inclusion of feed coproducts in dairy diets is a common strategy used to reduce the cost of producing milk. The corn ethanol industry produces a coproduct namely distillers dried grains with solubles (DDGS) which could be of high value to the dairy industry because of its high concentration of protein and energy. Under the feeding regimes in the U.S., Lys and Met are recognized as the two most limiting amino acids (AA) for milk protein synthesis. Similar to corn, DDGS is limiting in Lys but not Met. Thus, high inclusions of DDGS have not been favored in the field as …

Back Matter Agricultural Research Magazine August 2013

Agricultural Research Magazine

U.S. Department of Agriculture

Agricultural Research Magazine

5601 Sunnyside Ave.

Beltsville, MD 20705-5128

Prescription For Curing Citrus Greening, Dennis O’Brien, Yongping Duan

Agricultural Research Magazine

Huanglongbing (HLB), or citrus greening, is the most serious threat to the Florida citrus industry in its history and is costing millions of dollars each year. Working with the Florida Department of Agriculture and Consumer Services (FDACS), Yongping Duan and his Agricultural Research Service colleagues in Fort Pierce, Florida, have found a formula for curbing HLB, offering the industry a glimmer of hope.

Duan has published details of work showing that heating potted citrus seedlings in greenhouses kills off the HLB bacterium and can rid the seedlings of citrus greening symptoms. Monitoring efforts show that the benefit can last for …

Early Weaning: A Good Bet For Beef Producers In Drought-Stricken Areas, R.C. Waterman, Sandra Avant

Agricultural Research Magazine

At the beginning of 2013, cattle-ranchers in the Northern Plains were among U.S. agricultural producers still feeling the lingering effects of the sweltering 2012 drought, the worst in half a century.

Beef cow numbers were at the lowest in 50 years as U.S. beef producers—severely affected by extended drought—tried to recover from some of the driest months on record.

Across the Northern and Southern Plains, beef producers hit the hardest by drought are threatened by limited forage resources for cows, which restricts calf growth, resulting in lighter calf weaning weights. In addition, drought can decrease cow body weight and condition …

Scientific Works Of Art Reveal A Hidden World, Gary Bauchan, Jan Suszkiw

Agricultural Research Magazine

It has been said that a picture is worth a thousand words, and at the Agricultural Research Service’s Electron and Confocal Microscopy Unit (ECMU) in Beltsville, Maryland, this adage couldn’t be more true. Led by unit director Gary Bauchan, the ECMU is tasked with producing highresolution images that provide a window to the extraordinary world of the unseen.

“We have observed viruses, bacteria, fungi, nematodes, insects, mites, and parasites that threaten global food security, and we’ve contributed to the discovery of how pathogens spread by helping elucidate their relationship to the environment, hosts, and vectors,” says Bauchan. “We’ve also described …