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Demonstration Of An Annual Forage Crop Integrated With Crop And Livestock Enterprises, Richard M. Cruse, Mark S. Honeyman, Mohammad Ghaffarzadeh Jan 1998

Demonstration Of An Annual Forage Crop Integrated With Crop And Livestock Enterprises, Richard M. Cruse, Mark S. Honeyman, Mohammad Ghaffarzadeh

Leopold Center Completed Grant Reports

Using a more diverse cropping system, such as strip intercropping, to produce forages for feeding livestock can create a more sustainable, environmentally friendly farming system. Strip intercropping of corn, soybeans, and oats underseeded with berseem clover was used to demonstrate agronomic and environmental benefits of a more varied cropping system. This system produces oat/ berseem clover soilage (green-chop) that can be utilized to feed beef cattle.


Method And Composition For Coating Wound Or Protecting Animal Skin, Carl A. Huprich, Leo L. Timms Nov 1997

Method And Composition For Coating Wound Or Protecting Animal Skin, Carl A. Huprich, Leo L. Timms

Iowa State University Patents

Solutions of polyether polyurethane with benzoin gum in tetrahydrafuran applied to animal skin provide dry films that are elastic, vapor permeable, water proof, dirt proof, insect proof, aerobic bacteriostatic and adhere well under environmental conditions. Apparent application viscosity can be adjusted as required for specific needs.


Ingredient Selection For Plastic Composite Supports For L-(+)-Lactic Acid Biofilm Fermentation By Lactobacillus Casei Subsp. Rhamnosus, K.L. Ho, A. L. Pometto Iii, P. N. Hinz, James S. Dickson, A. Demirci Jul 1997

Ingredient Selection For Plastic Composite Supports For L-(+)-Lactic Acid Biofilm Fermentation By Lactobacillus Casei Subsp. Rhamnosus, K.L. Ho, A. L. Pometto Iii, P. N. Hinz, James S. Dickson, A. Demirci

Food Science and Human Nutrition Publications

Plastic composite supports containing 50% agricultural products (oat hulls, soybean hulls, yeast extract, soybean flour, dried bovine erythrocytes, bovine albumin, and/or mineral salts) and 50% (wt/wt) polypropylene were produced by high-temperature twin-screw extrusion. The research employed two half sets of a five-factorial fractional design (2(5 - 1)) to evaluate the effects of different agricultural components on the properties of the plastic composite supports and to select the best plastic composite support formulation for lactic acid fermentation. The biofilm population was affected by the contact angle and relative hydrophobicity of the supports (r = 0.79 to 0.82). Lactic ...


Method For Measuring Muscle Mass, Steven L. Nissen, John A. Rathmacher, Paul J. Flakoll May 1997

Method For Measuring Muscle Mass, Steven L. Nissen, John A. Rathmacher, Paul J. Flakoll

Iowa State University Patents

A method for determining muscle mass in a human subject useful for monitoring athletic conditioning, weight loss programs, nutritional deficiencies, and disease states which cause muscle wasting is provided comprising administration of a bolus dose of a metabolic marker for 3-methylhistidine, the use of a three-compartment model to describe data from blood samples collected periodically thereafter, and calculation of muscle mass as a function of specific values generated by the model.


Texture Analysis Using Multiresolution Analysis For Ultrasound Tissue Characterization, Nam-Deuk Kim, Viren Amin, Doyle Wilson, Gene Rouse, Satish S. Udpa Jan 1997

Texture Analysis Using Multiresolution Analysis For Ultrasound Tissue Characterization, Nam-Deuk Kim, Viren Amin, Doyle Wilson, Gene Rouse, Satish S. Udpa

Review of Progress in Quantitative Nondestructive Evaluation

There is a growing demand in the meat industry for a quantitative method of grading beef carcasses. Commercially available beef in the United States is graded subjectively by-certified United States Department of Agriculture (USDA) inspectors. This is done by visually determining the amount and distribution of intramuscular fat (IMFAT) or marbling in the ribeye muscle. A method for estimating quality attributes (such as marbling) in live animals would help cluster feedlot cattle into outcome groups for more effective marketing.


Method And Means For Quasi Ad-Libitum Feeding For Gestation Sows In Loose Housing, Steven J. Hoff, Mark S. Honeyman, James D. Mckean, Dwaine S. Bundy, Fernando Perez-Munoz, Steven E. Bryce, William E. Backhaus Dec 1996

Method And Means For Quasi Ad-Libitum Feeding For Gestation Sows In Loose Housing, Steven J. Hoff, Mark S. Honeyman, James D. Mckean, Dwaine S. Bundy, Fernando Perez-Munoz, Steven E. Bryce, William E. Backhaus

Iowa State University Patents

A gestation sow feeding system has a sow bedding enclosure, a gated scale weighing station, an alley connecting the scale weighing station with two separate feeding pens having entry and exist gates, and a bypass gate connecting the alley and the bedding enclosure. The traffic of sows through the system is monitored and controlled by a computer which controls the gates of the system, measures the weight and average daily gain of each sow weighed, and directs the weighed sow to the feeding pen for a ration of feed to permit the sow to adjust to a targeted average daily ...


Production Of A Videotape Series To Promote Forage-Based Livestock Production In The Upper Midwest, James R. Russell, Daniel G. Morrical, Stephen K. Barnhart, Kenneth J. Moore, Ann M. Cowen, Robert Dayton Jan 1996

Production Of A Videotape Series To Promote Forage-Based Livestock Production In The Upper Midwest, James R. Russell, Daniel G. Morrical, Stephen K. Barnhart, Kenneth J. Moore, Ann M. Cowen, Robert Dayton

Leopold Center Completed Grant Reports

Although properly managed grazing can increase farm income and enhance environmental quality, it has not been widely used in the Upper Midwest. Instead, grazing has been viewed as an adjunct to row crop production, and state-of-the-art management techniques have been adopted slowly. However, recent research has developed forage grazing systems that can compete economically with row crops, especially on more erodible land. In order to implement such systems successfully, producers need practical information on the technical aspects of grazing and pasture management. Most grazing videos produced prior to this project were tailored to other geographic regions or weren't sufficiently ...


Low-Input Sustainable Sow Housing For Iowa, Mark S. Honeyman, Steven J. Hoff, James Mckean, Dwaine S. Bundy, Emmett Stevermer Jan 1996

Low-Input Sustainable Sow Housing For Iowa, Mark S. Honeyman, Steven J. Hoff, James Mckean, Dwaine S. Bundy, Emmett Stevermer

Leopold Center Completed Grant Reports

This project developed a low-cost, innovative sow housing and feeding system that is currently under consideration for a patent. A quasi ad libitum (free feeding of a controlled diet) electronic feeding system for gestating sows was housed in a 9.1 X 18.3 meter steel-hooped structure covered with an aluminized plastic tarp. A feeder served as a partition between high-energy and low-energy diet feeding areas. After weighing, hogs were directed to the appropriate diet by means of a tag number read by a computer. Such farm size-neutral housing can help producers raise lean market pigs. Other advantages include improved ...


Integrating Sustainable Concepts With The Isu Beef Feedlot Performance Projects Program, Daniel D. Loy, Doyle Wilson, Philip L. Spike Jan 1996

Integrating Sustainable Concepts With The Isu Beef Feedlot Performance Projects Program, Daniel D. Loy, Doyle Wilson, Philip L. Spike

Leopold Center Completed Grant Reports

Farmer-feeders who feed homegrown crops to feeder cattle as a marketing alternative for these crops must evaluate the impact of their cropping patterns and feeding on the whole farm operation. This project developed a tool for beef cattle producers to make more conscientious decisions


Oral Administration Of Coprostanol Producing Microorganisms To Humans To Decrease Plasma Cholesterol Concentration, Donald C. Beitz, Jerry W. Young, Ling Li, Kimberly K. Buhman Aug 1995

Oral Administration Of Coprostanol Producing Microorganisms To Humans To Decrease Plasma Cholesterol Concentration, Donald C. Beitz, Jerry W. Young, Ling Li, Kimberly K. Buhman

Iowa State University Patents

A method of decreasing plasma cholesterol is disclosed. The method includes oral administration of coprostanol-producing bacteria to humans. These organisms, once in the small intestine, will reduce free cholesterol to coprostanol, which is absorbed poorly. Pharmaceutical compositions for delivery are included as are different methods of delivery such as placing the microorganisms in food.


High-Intensity, Year-Round Rotational Grazing, James R. Russell Jan 1995

High-Intensity, Year-Round Rotational Grazing, James R. Russell

Leopold Center Completed Grant Reports

Compared to row crops, most forage crops reduce water runoff, therefore limiting soil erosion. Forage systems also require less chemical pest control than row crops. Because legume forage species fix nitrogen in the soil, they seldom require nitrogen fertilization. Despite these advantages, profitability limitations have kept forage use from expanding.


Livestock Record System, Richard L. Willham, Robert J. Weber, Marwan M. Hassoun Jun 1994

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

Iowa State University Patents

An electronic livestock record system stores the individual animal's identification and performance data on a programmable electronic identification and data storage module carried with the animal so that the animal's identification, the animal's performance data and the animal itself become one. The systemincludes a programmable electronic identification and data storage module carried by the animal, and a reading and recording device which communicates with the electronic identification and data storage module.


Feed Compositions For Domestics Animals Containing Hydroxymethylbutyrate, Steven L. Nissen Feb 1992

Feed Compositions For Domestics Animals Containing Hydroxymethylbutyrate, Steven L. Nissen

Iowa State University Patents

Feed compositions are provided for raising meat-producing ruminants and polutry. β-hydroxcy-β-methylbutyric acid or an edible salt thereof (HMB) is incorporated in the ruminant or poultry feeds to obtain a substantial increase in meat and/or to improve the quality of the lean meat.


Optimal Efficiency In The Use Of Iowa's Energy, Soil, And Feed Resources For Beef Production, James R. Russell, Allen H. Trenkle, Daryl R. Strohbehn, Walter F. Wedin, Stephen K. Barnhart, Arne Hallam, Mark S. Honeyman Jan 1992

Optimal Efficiency In The Use Of Iowa's Energy, Soil, And Feed Resources For Beef Production, James R. Russell, Allen H. Trenkle, Daryl R. Strohbehn, Walter F. Wedin, Stephen K. Barnhart, Arne Hallam, Mark S. Honeyman

Leopold Center Completed Grant Reports

Soil erodes over six times faster from cultivated Iowa cropland than from pastureland, even though almost 12 percent more of the pastureland acres are classified as highly erodible than the cropland acres. Because of serious concern about excessive erosion of Iowa's topsoil, profitable alternatives to row-crop production are needed for soils like those found in much of southern Iowa.


Head Mounted Stereotaxic Apparatus, Lloyd L. Anderson Jul 1991

Head Mounted Stereotaxic Apparatus, Lloyd L. Anderson

Iowa State University Patents

A head mounted stainless steel stereotaxic apparatus for precise locallization of probes/cannulas in selected regions of the mammalian brain. Novel aspects of this apparatus include versatility in placement of probe/cannula in selected sites in the brain, mobility of the animal after attachment of the apparatus to the frontal bone, and repeated use of the same instrument on different animal species.


Method Of Raising Meat Producing Animals To Increase Lean Tissue Development, Steven L. Nissen Jul 1991

Method Of Raising Meat Producing Animals To Increase Lean Tissue Development, Steven L. Nissen

Iowa State University Patents

A method is provided for raising meat producing domestic animals to increase lean tissue development. β-hydroxcy-β-methylbutyric acid or an edible salt thereof (HMB) is administered to the animals in an effective amount for a sufficient length of time to obtain a substantial increase in lean tissue weight. Feed compositions for use in practicing the method are also provided. The method and feed compositions are particularly adapted for use with ruminants, including beef cattle and lambs, since HMB is not subject to appreciable rumen destruction. The method can also be practiced with other domestic animals, including chickens, and turkeys.


Porcine Somatotropin To Improve Meat Quality Of Pigs, Lauren L. Christian, Lindy F. Miller May 1991

Porcine Somatotropin To Improve Meat Quality Of Pigs, Lauren L. Christian, Lindy F. Miller

Iowa State University Patents

Muscle quality of pigs normally susceptible to porcine stress syndrome is improved by administering to the pigs in conjunction with their daily feed ration, a small amount of porcine somatotropin.


Apparatus And Process For Separating Bone Fragments, Gristle And Sinews From Meat As The Meat Is Being Ground, Patrick H. Huebner, Joseph G. Sebranek, Dennis G. Olson, Eugene A. Anderson Dec 1990

Apparatus And Process For Separating Bone Fragments, Gristle And Sinews From Meat As The Meat Is Being Ground, Patrick H. Huebner, Joseph G. Sebranek, Dennis G. Olson, Eugene A. Anderson

Iowa State University Patents

A conventional meat grinder contains a chopper knife and a chopper plate, the chopper knife rides on the inner surface of the chopper plate and directs the bone fragments, sinews and gristle inwardly toward the central portion of the chopper plate as it chops the meat. The central portion of the chopper plate has a funnel-shaped, frusto-conical central passageway within which the bone fragments, gristle and sinews and collected and are urged outward, first passing through the frusto-conical passageway and out the small end of the passageway, into opposed discharge channels which passes through the hub of the plate and ...


Apparatus And Process For Separating Bone Fragments, Gristle And Sinews From Meat As The Meat Is Being Ground, Patrick H. Huebner, Joseph G. Sebranek, Dennis G. Olson, Eugene A. Anderson May 1990

Apparatus And Process For Separating Bone Fragments, Gristle And Sinews From Meat As The Meat Is Being Ground, Patrick H. Huebner, Joseph G. Sebranek, Dennis G. Olson, Eugene A. Anderson

Iowa State University Patents

A conventional meat grinder contains a chopper knife and a chopper plate, the chopper knife rides on the inner surface of the chopper plate and directs the bone fragments, sinews and gristle inwardly toward the central portion of the chopper plate as it chops the meat. The central portion of the chopper plate has a funnel-shaped, frusto-conical central passageway within which the bone fragments, gristle and sinews are collected and are urged outward, first passing through the frusto-conical passageway and out the small end of the passageway, into opposed discharge channels which passes through the hub of the plate and ...


Method Of Converting Cholesterol In Food To Coprostanol, Donald C. Beitz, Jerry W. Young, Shangara S. Dehal May 1990

Method Of Converting Cholesterol In Food To Coprostanol, Donald C. Beitz, Jerry W. Young, Shangara S. Dehal

Iowa State University Patents

Cholesterol reductase was discovered in certain green plant parts. The enzyme is known to be present in several bacteria that commonly inhabit the digestive tract of animals. Eubacteria species A.T.C.C. 21408 is one such cholesterol reductase-containing bacterium. It is concentrated from a homogenate, preferably of leaves of plants or from bacteria or other organisms to provide a cell-free, cholesterol reductase-enriched preparation that can be used to decrease cholesterol content of food substances.


Method Of Feeding Ketoisocaproate To Laying Chickens, Steven L. Nissen Aug 1988

Method Of Feeding Ketoisocaproate To Laying Chickens, Steven L. Nissen

Iowa State University Patents

A method of feeding laying chickens to increase egg production and/or reduce yolk cholesterol is provided in which alpha-ketoisocaproate (KIC) is orally administered to the laying chickens concurrently with the feeding of a protein-containing ration. The KIC is preferably fed in admixture with the ration.


Method Of Feeding Ketoisocaproate To Cattle And Sheep, Steven L. Nissen Jul 1988

Method Of Feeding Ketoisocaproate To Cattle And Sheep, Steven L. Nissen

Iowa State University Patents

Cattle and sheep are fed ketoisocaproate (KIC) with a diet of limited leucine content for enhancement of growth and feed efficiency. The method is especially applicable to beef cattle and sheep being raised for meat production, but it can also be used with veal calves and mature sheep being fed for wool production.


Method Of Feeding Ketoisocaproate To Lactating Domestic Mammals, Steven L. Nissen Jul 1988

Method Of Feeding Ketoisocaproate To Lactating Domestic Mammals, Steven L. Nissen

Iowa State University Patents

Lactating domestic mammals are fed ketoisocaproate (KIC) with a diet containing limited leucine to improve the quantity and quality of the milk produced. This feeding method is particularly applicable to dairy cattle but also can advantageously be used with nursing domestic animals including cattle, sheep, goats, horses, and swine.


Method Of Managing Cattle Breeding Herds, Lloyd L. Anderson Aug 1987

Method Of Managing Cattle Breeding Herds, Lloyd L. Anderson

Iowa State University Patents

Cattle breeding herds are managed for accelerated time-controlled calving, using groups of cows predicted to calve within a period of 10 days, 1000 to 10,000 units of purified porcine relaxin are administered intramuscularly or intracervically. Auxiliary agents may also be administered such as methasone or dexamethasone. Within the selected group, parturition can be limited to time periods as short as 24 to 48 hours. Further, parturition can be accelerated from 2 to 10 days. These benefits are obtained without adverse side effects such as retained placenta or dystocia.


Enrichment, Isolation And Characterization Of Anaerobic Oxalate-Degrading Bacteria From The Rumen, Karl A. Dawson Jan 1979

Enrichment, Isolation And Characterization Of Anaerobic Oxalate-Degrading Bacteria From The Rumen, Karl A. Dawson

Retrospective Theses and Dissertations

No abstract provided.


Rumensin: A New Feed Additive For Feedlot Cattle, Steven Nissen, Allen Trenkle Jan 1976

Rumensin: A New Feed Additive For Feedlot Cattle, Steven Nissen, Allen Trenkle

Iowa State University Veterinarian

Because feed comprises over 80% of the cost of producing fat cattle, considerable research has been directed towards improving utilization of the energy in feeds by ruminants. Attempts to get more energy from cattle feeds have included grinding, pelleting, steam flaking, feeding ensiled high moisture grains and feeding high concentrate rations.


Recycling Animal Wastes, Ken C. Moellers, R. L. Vetter Jan 1974

Recycling Animal Wastes, Ken C. Moellers, R. L. Vetter

Iowa State University Veterinarian

During a time period when shortages, ecology, and conservation are routinely a concern to government, business, and individuals, there are renewed efforts to make food production more efficient. Recycling of animal wastes involves the refeeding of animal excreta to other or the same species of food producing animals usually a a fraction of the total diet. For centuries animal wastes have been recycled by allowing hogs to follow cattle and chickens to roam the barnyard. Animals will consume portions of their own feces when fed a diet deficient in certain nutrients.


Purification And Properties Of Skeletal Muscle Microsomes , Bruce Alan Eason Jan 1969

Purification And Properties Of Skeletal Muscle Microsomes , Bruce Alan Eason

Retrospective Theses and Dissertations

No abstract provided.


Voluntary Intake By Grazing Steers And Digestibility Trends Of Tall Fescue And Reed Canarygrass As Summer And Fall-Saved Pasture , William Barter Bryan Jan 1969

Voluntary Intake By Grazing Steers And Digestibility Trends Of Tall Fescue And Reed Canarygrass As Summer And Fall-Saved Pasture , William Barter Bryan

Retrospective Theses and Dissertations

No abstract provided.


Observations On The Etiology, Prophylaxis And Therapy Of Pasture Bloat , Richard Harmon Johnson Jan 1959

Observations On The Etiology, Prophylaxis And Therapy Of Pasture Bloat , Richard Harmon Johnson

Retrospective Theses and Dissertations

No abstract provided.