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Individual Descriptive Record System, Richard L. Willham, Robert J. Weber, Marwan M. Hassoun Mar 2013

Individual Descriptive Record System, Richard L. Willham, Robert J. Weber, Marwan M. Hassoun

Iowa State University Patents

An electronic individual descriptive record system for storing the individual's identification and descriptive data on a programmable electronic identification and data storage module carried with the individual so that the individual's identification, the individual's descriptive data and the individual itself become one. The system includes an implantable programmable electronic identification and data storage module carried by the individual, and a reading and recording device which communicates with the electronic identification and data storage module.


Use Of Mob Grazing To Improve Cattle Production, Enhance Legume Establishment And Increase Carbon Sequestration In Iowa Pastures, James R. Russell, Stephen K. Barnhart, Daniel G. Morrical, Harris J. Sellers Jan 2013

Use Of Mob Grazing To Improve Cattle Production, Enhance Legume Establishment And Increase Carbon Sequestration In Iowa Pastures, James R. Russell, Stephen K. Barnhart, Daniel G. Morrical, Harris J. Sellers

Leopold Center Completed Grant Reports

Mob grazing is a variation on rotational grazing that has been proposed to have promise as one of the tactics graziers can use to improve cattle performance and environmental quality. This project looked at whether and how mob grazing could benefit livestock and producer management of their pastures and soil resources.


The Effects Of Bedding Pack Clean-Out In Hoop Barns For Feedlot Cattle, Mark S. Honeyman, W. Darrell Busby, Shawn C. Shouse, Dallas L. Maxwell Jan 2013

The Effects Of Bedding Pack Clean-Out In Hoop Barns For Feedlot Cattle, Mark S. Honeyman, W. Darrell Busby, Shawn C. Shouse, Dallas L. Maxwell

Iowa State Research Farm Progress Reports

Bedded hoop barns have become popular for feeding beef cattle. The cattle are kept in the hoop barn, which is bedded to form a manure pack. ISU work has shown that the cattle perform well. However, producers question how to manage the pack and when to clean out.

The objective of this study was to compare three clean-out strategies (none, once, and twice) for beef cattle fed in hoop barns.


The Isu Compost Facility After Four Years, Steve J. Jonas, Timothy R. Goode, Kapil Arora, Mark S. Honeyman Jan 2013

The Isu Compost Facility After Four Years, Steve J. Jonas, Timothy R. Goode, Kapil Arora, Mark S. Honeyman

Iowa State Research Farm Progress Reports

The University Compost Facility has completed four full years of operation. The facility is managed by the ISU Research Farms and has a separate revolving account that receives fees and sales and pays expenses. The facility is designed to be self-supporting, i.e. not receive allocations for its operations. The facility is located at 52274 260th Street, Ames, Iowa.


Grass-Finished Beef Pilot Project: Cattle Performance, Peter J. Lammers, Suzanne T. Millman, Reneé Dewell, Jessica R. Juarez, Michelle L. Christianson, Dallas L. Maxwell, Mark S. Honeyman Jan 2013

Grass-Finished Beef Pilot Project: Cattle Performance, Peter J. Lammers, Suzanne T. Millman, Reneé Dewell, Jessica R. Juarez, Michelle L. Christianson, Dallas L. Maxwell, Mark S. Honeyman

Iowa State Research Farm Progress Reports

Consumer interest in the potential benefits of grass-finished beef is high, but adoption of this approach to cattle feeding has been limited in Iowa. Although some producers successfully meet this niche market demand, consistently producing a high-value carcass from forage-fed cattle is challenging. Intramuscular fat or marbling is a major factor in quality grading of beef. Marbling is heavily influenced by cattle genetics and energy concentration of the diet. Finishing cattle on grain is a proven approach to consistently produce a high-value carcass for the commodity beef market. Researchers at Iowa State University have pioneered the use of ultrasound measurements ...


Dietary Oil Composition Differentially Modulates Intestinal Endotoxin Transport And Postprandial Endotoxemia, Venkatesh Mani, James H. Hollis, Nicholas K. Gabler Jan 2013

Dietary Oil Composition Differentially Modulates Intestinal Endotoxin Transport And Postprandial Endotoxemia, Venkatesh Mani, James H. Hollis, Nicholas K. Gabler

Food Science and Human Nutrition Publications

Background: Intestinal derived endotoxin and the subsequent endotoxemia can be considered major predisposing factors for diseases such as atherosclerosis, sepsis, obesity and diabetes. Dietary fat has been shown to increase postprandial endotoxemia. Therefore, the aim of this study was to assess the effects of different dietary oils on intestinal endotoxin transport and postprandial endotoxemia using swine as a model. We hypothesized that oils rich in saturated fatty acids (SFA) would augment, while oils rich in n-3 polyunsaturated fatty acids (PUFA) would attenuate intestinal endotoxin transport and circulating concentrations.

Methods: Postprandial endotoxemia was measured in twenty four pigs following a porridge ...


Validation Of A Lameness Model In Sows Using Physiological And Mechanical Measurements, Locke A. Karriker, Caitlyn E. Abell, Monique D. Pairis-Garcia, Whitney A. Holt, Gang Sun, Johann F. Coetzee, Anna K. Johnson, Steven J. Hoff, Kenneth J. Stalder Jan 2013

Validation Of A Lameness Model In Sows Using Physiological And Mechanical Measurements, Locke A. Karriker, Caitlyn E. Abell, Monique D. Pairis-Garcia, Whitney A. Holt, Gang Sun, Johann F. Coetzee, Anna K. Johnson, Steven J. Hoff, Kenneth J. Stalder

Agricultural and Biosystems Engineering Publications

The objective of this study was to develop a validated, transient, chemically induced lameness model in sows using subjective and objective lameness detection tools. Experiment 1 determined an effective joint injection technique based on volume and placement of dye using feet collected from 9 finisher pigs and 10 multiparity cull sow carcasses. Experiment 2 confirmed the injection technique in live animals and produced a transient clinical lameness in 4 anesthetized sows injected with amphotericin B (15 mg/mL) in the distal interphalangeal joints of the claw. Clinical lameness was assessed by a categorical lameness scoring system, and a postmortem visual ...