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Got Controversy - Milk Does, Margaret Sova Mccabe Oct 2008

Got Controversy - Milk Does, Margaret Sova Mccabe

Law Faculty Scholarship

This article analyzes ongoing controversy over how to best label rBST-free milk. Recombinant bovine somatotropin is a genetically engineered drug administered by some farmers to their dairy herds to increase milk production. FDA first approved its use in 1994, despite great controversy. The FDA also issued labeling guidelines that allowed voluntary disclosure of rBST-free milk, so long as it carried the disclaimer that no difference could be detected between milk produced with rBST and rBST-free. The controversy continues today as consumers express a preference for rBST-free milk and many rBST-free producers label their milk this way. "Conventional" milk (with rBST ...


Ammonia Emissions And Olfactometry Analysis Of Limit Fed High And Low Concentrate Diets With Different Forage Quality In Dairy Heifers, G. J. Lascano, P. A. Topper, A. Adviento-Borbe, D. Topper, R. C. Brandt, E. F. Wheeler, A. J. Heinrichs Jul 2008

Ammonia Emissions And Olfactometry Analysis Of Limit Fed High And Low Concentrate Diets With Different Forage Quality In Dairy Heifers, G. J. Lascano, P. A. Topper, A. Adviento-Borbe, D. Topper, R. C. Brandt, E. F. Wheeler, A. J. Heinrichs

Dairy Science

No abstract provided.


The Use Of Flow Cytometry To Assess Rumen Bacteria In Dairy Heifers Limit Fed Different Forage To Concentrate Ratios With Saccharomyces Cerevisiae, G. J. Lascano, A. J. Heinrichs Jul 2008

The Use Of Flow Cytometry To Assess Rumen Bacteria In Dairy Heifers Limit Fed Different Forage To Concentrate Ratios With Saccharomyces Cerevisiae, G. J. Lascano, A. J. Heinrichs

Dairy Science

No abstract provided.


Odor Evaluation And Gas Emission From Manure Of Dairy Heifers Fed High/Low - Forage Quality And High/Low-Concentrate Diets, Patrick A. Topper, Robin Brandt, Arlene Adviento-Borbe, Gustavo J. Lascano, Arlyn J. Heinrichs, Eileen F. Wheeler Jun 2008

Odor Evaluation And Gas Emission From Manure Of Dairy Heifers Fed High/Low - Forage Quality And High/Low-Concentrate Diets, Patrick A. Topper, Robin Brandt, Arlene Adviento-Borbe, Gustavo J. Lascano, Arlyn J. Heinrichs, Eileen F. Wheeler

Dairy Science

A heifer feeding trial evaluated the impact of high/low forage quality and high/low concentrate level nutrient-balanced diets on simultaneous odor and gas emissions from the manure. Gas concentration was determined using an infrared photoacoustic analyzer over a 24-hour period using a steady-state flux chamber setup containing urine:feces as-excreted from eight individual heifers. Odorous air samples were collected from chamber headspace and evaluated by six human assessors for pleasantness, intensity and detection threshold using a forced-choice dynamic olfactometer. Ammonia emission ranged from 0.64 to 3.94 mg NH3 cm-2 d-1 across diets. Average ammonia emission from the ...


Drake, James F. (Sc 1644), Manuscripts & Folklife Archives May 2008

Drake, James F. (Sc 1644), Manuscripts & Folklife Archives

MSS Finding Aids

Finding aid only for Manuscripts Small Collection 1644. Letter from James F. Drake, Lexington, Kentucky to John Allen Gano, Centerville, Bourbon County, Kentucky, inquiring about a milk cow he has advertised for sale.


Survey Of Dairy Management Practices On One Hundred Thirteen North Central And Northeastern United States Dairies, W. K. Fulwider, T. Grandin, B. E. Rollin, T. E. Engle, N. L. Dalstead, W. D. Lamm Apr 2008

Survey Of Dairy Management Practices On One Hundred Thirteen North Central And Northeastern United States Dairies, W. K. Fulwider, T. Grandin, B. E. Rollin, T. E. Engle, N. L. Dalstead, W. D. Lamm

Farm Animal Welfare Collection

The objective was to conduct a broad survey of dairy management practices that have an effect on animal well-being. Dairies were visited during the fall and winter of 2005 and 2006 in Wisconsin, Minnesota, Indiana, Iowa, and New York. Data were collected on 113 dairies on colostrum feeding, dehorning, tail-docking, euthanasia methods, producer statements about welfare, use of specialized calf-raising farms (custom), level of satisfaction with calf-raising by producers, and cow behavior. Calves were raised by the owner on 50.4% of dairies; 30.1% were raised on custom farms during the milk-feeding period, 18.6% were custom raised after ...


Heifer Tanzania’S Alternate Training Methods: A Study Comparing The Dairy Cow Husbandry Practices Of Farmers Trained In Their Villages By Project Supervisors To Those Of Farmers Trained By The Liti Tengeru Animal Husbandry Training Center, Ciara Lowery Apr 2008

Heifer Tanzania’S Alternate Training Methods: A Study Comparing The Dairy Cow Husbandry Practices Of Farmers Trained In Their Villages By Project Supervisors To Those Of Farmers Trained By The Liti Tengeru Animal Husbandry Training Center, Ciara Lowery

Independent Study Project (ISP) Collection

This study was conducted in nine villages near Mount Meru, Tanzania between 14 April 2008 and 1 May 2008. The study question and methods were developed in conjunction with Heifer Tanzania. Heifer is a non-profit organization that provides dairy-cattle and other livestock to farmers in need. Heifer’s agents also provide training in sustainable farming techniques, such as zero-grazing livestock husbandry, and building contours. Some farmers receive this training in their village from a project supervisor, and other farmers are sent to a government facility, Liti Tengeru Animal Husbandry Training Center. The aim of this study was to determine what ...


Staying Alive: Maximizing Live Bacteria In Fermented Products, Phillip S. Tong Feb 2008

Staying Alive: Maximizing Live Bacteria In Fermented Products, Phillip S. Tong

Dairy Science

No abstract provided.


Fat-Soluble Vitamin And Micromineral Concentrations In Preruminant Dairy Calves Fed To Achieve Different Growth Rates, Brian J. Nonnecke, Monica R. Foote, Ronald L. Horst, W. Ray Waters, Bill L. Miller, Tom E. Johnson, Mike Fowler Jan 2008

Fat-Soluble Vitamin And Micromineral Concentrations In Preruminant Dairy Calves Fed To Achieve Different Growth Rates, Brian J. Nonnecke, Monica R. Foote, Ronald L. Horst, W. Ray Waters, Bill L. Miller, Tom E. Johnson, Mike Fowler

Animal Industry Report

Effects of neonatal growth rate on plasma concentrations of fat-soluble vitamins, zinc, and copper in preruminant calves were evaluated. Calves were assigned to dietary treatments designed to achieve three targeted rates of gain [No-Growth (NG) = 0.0 kg/d, Low-Growth (LG) = 0.55 kg/d, or High-Growth (HG) = 1.2 kg/d] over a 7 wk period. MR intakes needed to achieve specified growthrates were estimated using the NRC Nutrient Requirements of Dairy Cattle calf model computer program. Calves were fed a 30% CP, 20% fat, MR reconstituted to 14% DM. Because vitamin levels in the MR were based on ...


Teat Coverage Persistency Of Novel Teat Dip Prototypes For Dry Period Mastitis Control, Leo L. Timms Jan 2008

Teat Coverage Persistency Of Novel Teat Dip Prototypes For Dry Period Mastitis Control, Leo L. Timms

Animal Industry Report

Thirty new experimental persistent barrier type teat dips and one commercial dip for dry cow mastitis control were evaluated for adherence persistency on teat ends of late gestation cows and heifers (1-2 weeks pre-calving). There was tremendous variability both within and across prototype dips, and all products failed to have a high percentage of teats protected at 3 and 5 days post dipping. Stronghold (Alfa-Laval, Inc) showed high percentages of protection (100 and 65%) at 3 and 5 days post dipping. Other issues with prototype dips included viscosity, visibility, and odor.


Transforming A Milking Parlor At Low Cost—Developing Dairy In Iowa, Larry Tranel Jan 2008

Transforming A Milking Parlor At Low Cost—Developing Dairy In Iowa, Larry Tranel

Animal Industry Report

As dairy operators look for ways to make milking easier, some may feel that a modern parlor is not within their budget. However, an up-to-date milking parlor can be an option for every Iowa dairy producer. With relatively lowcost remodeling and retrofitting, old stall barns and parlors can be cost effectively transformed into modern milking parlors when properly designed, installed, and operated. Iowa State University Dairy Extension has been a leader in this area, from many parlor tours and events to showcase options for dairy producers and the industry, to the development of excellent quality written and visual media to ...


Genetic Analysis Of Fatty Acid Composition Of Milk: Basis For Improvement Of The Healthfulness Of The U.S. Milk Supply, Jon P. Schoonmaker, Rafael A. Nafikov, James M. Reecy, Diane E. Spurlock, Jenny Minick-Bormann Jan 2008

Genetic Analysis Of Fatty Acid Composition Of Milk: Basis For Improvement Of The Healthfulness Of The U.S. Milk Supply, Jon P. Schoonmaker, Rafael A. Nafikov, James M. Reecy, Diane E. Spurlock, Jenny Minick-Bormann

Animal Industry Report

No abstract provided.


Relationship Of Subclinical Mastitis In Ghanaian Women And Breast Milk Intake By Infants , Richmond Aryeetey, Grace Marquis, Leo L. Timms, A. Lartley, L. Brakohiapa Jan 2008

Relationship Of Subclinical Mastitis In Ghanaian Women And Breast Milk Intake By Infants , Richmond Aryeetey, Grace Marquis, Leo L. Timms, A. Lartley, L. Brakohiapa

Animal Industry Report

Human subclinical mastitis (SCM) is inflammation of mammary tissue without any overt manifestations but is associated with lactation failure, sub-optimal infant growth during the early postpartum period, and increased risk of mother-to-child-transmission of HIV via breast milk. Subclinical mastitis (SCM) has been associated with infant growth faltering but the mechanism explaining this association remains unknown. We hypothesized that SCM is associated with reduced breast milk intake resulting in diminished growth.

Ghanaian mothers who were 3-6 months postpartum were screened for SCM using the California mastitis test (CMT). A CMT score of ≥ 1 was categorized as SCM positive (N=37); a ...


Characteristics And Use Of Separated Manure Solids (Following Composting) For Dairy Freestall Bedding, And Effects On Animal Health And Performance In An Iowa Dairy Herd , Leo L. Timms Jan 2008

Characteristics And Use Of Separated Manure Solids (Following Composting) For Dairy Freestall Bedding, And Effects On Animal Health And Performance In An Iowa Dairy Herd , Leo L. Timms

Animal Industry Report

This summary provides data regarding characteristics (dry matter content and environmental mastitis pathogen counts) of separated manure solids following composting and usage on mattresses (North free stall barn) and deep bedded compost freestalls (2 South freestall barns) in an Iowa dairy herd. Dry matter content of fresh separated solids was 20-25%, with composted solids being 20-40% when stored outside (variable due to weather) and 30-50% when stored in a hoop building. Dry matter content of separated solids once in stalls increased to 60-80%. Composting resulted in coliform bacteria levels < 10 2 (detection levels) but levels of all bacteria were elevated to ...


2007 Review—Animal And Dairy Science Teaching , M. Douglas Kenealy Jan 2008

2007 Review—Animal And Dairy Science Teaching , M. Douglas Kenealy

Animal Industry Report

Animal Science undergraduate admissions increased dramatically in 2007 for the third year in a row. Fall 2007 enrollment of 742 students is the highest ever recorded for the department. Large enrollment increases are a ‘good problem’, but stress laboratory space and teaching and advising loads. Placement rates and starting salaries for graduates of animal and dairy science remained strong, with the average starting salary approaching $40,000.

New faculty hires in teaching and programmatic developments, such as the Meat Science Minor illustrate the vibrance of the Animal Science department. Major building efforts impacting the teaching program include the opening of ...


2007 Review—Isu Dairy Farm, Ames, Iowa, Joe Detrick Jan 2008

2007 Review—Isu Dairy Farm, Ames, Iowa, Joe Detrick

Animal Industry Report

No abstract provided.


Western Iowa Dairy Alliance Reaches Milestones , Chris Mondak Jan 2008

Western Iowa Dairy Alliance Reaches Milestones , Chris Mondak

Animal Industry Report

No abstract provided.


Effects Of Environmental Cold On The Preruminant Calf, Brian J. Nonnecke, Monica R. Foote, Ronald L. Horst, Bill L. Miller, Tom E. Johnson, Mike Fowler Jan 2008

Effects Of Environmental Cold On The Preruminant Calf, Brian J. Nonnecke, Monica R. Foote, Ronald L. Horst, Bill L. Miller, Tom E. Johnson, Mike Fowler

Animal Industry Report

This study examined effects of sustained environmental cold on growth and health of dairy calves. Functional measures of energy metabolism, fat-soluble vitamin and mineral status, and immune competency were also evaluated. Newborn calves were assigned to warm or cold environments for 7wk. Cold environment temperature were maintained as close to 2°C as possible. Frequent wetting of the environment and calves augmented effects of the cold. The warm environment was maintained as close to 15°C as possible and humidity was not manipulated. Preventative medications or vaccinations were not administered. All calves were fed a non-medicated MR (20% CP and ...


New Isu Dairy Mooves In And Ahead, Leo L. Timms Jan 2008

New Isu Dairy Mooves In And Ahead, Leo L. Timms

Animal Industry Report

After many years (decades) of discussions, plans, and sometimes speculation, the new ISU Dairy Farm project is steamrolling ahead (mooooooving!!). Since Board of Reagents approval in August 2004 of the architect and engineering firms as well as the funding dollars, this dairy team along with all the stakeholders (ISU, NADC, dairy industry) have been intensely working to finalize the components and layout and construct a “state of the art” 450 milking cow (525 total) facility with all replacements included on site. Unique bidding of the dairy in 6 packages or components was completed in 2006 and timetable for completion and ...


Preliminary Evaluation Of Separated Manure Solids Characteristics At The New Isu Dairy , Leo L. Timms Jan 2008

Preliminary Evaluation Of Separated Manure Solids Characteristics At The New Isu Dairy , Leo L. Timms

Animal Industry Report

This summary provides preliminary data regarding dry matter content and environmental mastitis pathogen counts in separated manure solids at the new ISU Dairy. Animals were moved to the new dairy on Nov. 26-27, 2007 and manure solid separating was initiated on Nov. 29. Manure solids are separated using a Vincent KP-10 screw press separator. Manure solids dry matter content ranged from 27- 39%. On days where DM% was 27-30%, issues with the separator and system led to enhanced liquid flow into the materials. DM % of 35-40% will be targeted for bedding solids. Total bacteria counts ranged from 106 -10 ...


Characteristics And Use Of Separated Manure Solids (Following Anaerobic Digestion) For Dairy Freestall Bedding, And Effects On Animal Health And Performance In Three Iowa Dairy Herds, Leo L. Timms Jan 2008

Characteristics And Use Of Separated Manure Solids (Following Anaerobic Digestion) For Dairy Freestall Bedding, And Effects On Animal Health And Performance In Three Iowa Dairy Herds, Leo L. Timms

Animal Industry Report

This summary provides data regarding characteristics (dry matter content and environmental mastitis pathogen counts) of separated manure solids following anaerobic digestion and usage in freestalls on 3 Iowa dairy farms (separated and used on 1 dairy, transported and used at 2 other dairies). Dry matter content of fresh separated solids was 28-40%. Dry matter content of separated solids once in stalls increased to 60-80% (50-60% during winter). Anaerobic digestion (once properly achieved) resulted in coliform bacteria levels < 10 2 (detection levels) but levels of all bacteria were elevated to baseline stall values following < 12 hr. time in stalls. Cow comfort, cleanliness, and feet and leg health were excellent on the bedded manure solids in all 3 herds. SCC remained constant or decreased following use of separated with no associated increases in clinical mastitis. This data shows that composted manure solids can provide a comfortable, effective bedding source if a consistent product is generated and managed properly, and stall, alley, and milking management areas are optimized. However, presence of other organisms (Johne’s and salmonella) in separated materials should be evaluated and taken into consideration if separated solids from one dairy are used by other dairies.


Evaluation Of A Novel Chlorine Dioxide Teat Dip On Teat End And Teat Skin Health , Leo L. Timms Jan 2008

Evaluation Of A Novel Chlorine Dioxide Teat Dip On Teat End And Teat Skin Health , Leo L. Timms

Animal Industry Report

The purpose of this study was to evaluate the teat end health and skin conditioning performance of an experimental “no mix” chlorine dioxide teat dip vs. the commercial dips and best management practices used at the ISU Dairy using a split udder design. The experimental chlorine dioxide dip showed similar, excellent teat skin health and conditioning compared to the herd’s dips and best management practices. However, average teat end scores and % rough teats were significantly higher in chlorine dioxide dipped teats, with this reaction occurring more on teats that had higher hyperkeratosis at the start. This localized, prolonged reaction ...


The Jackrabbit Dairy Review, Vikram Mistry Jan 2008

The Jackrabbit Dairy Review, Vikram Mistry

The Jackrabbit Dairy & Food Review

No abstract provided.


Butter Composition And Texture From Cows With Different Milk Fatty Acid Compositions Fed Fish Oil Or Roasted Soybeans , Gerd Bobe, Shelly Zimmerman, Earl G. Hammond, Gene Freeman, Paul A. Porter, Cindy M. Luhman, Donald C. Beitz Jan 2008

Butter Composition And Texture From Cows With Different Milk Fatty Acid Compositions Fed Fish Oil Or Roasted Soybeans , Gerd Bobe, Shelly Zimmerman, Earl G. Hammond, Gene Freeman, Paul A. Porter, Cindy M. Luhman, Donald C. Beitz

Animal Industry Report

Nutritional and physical properties of dairy products can be improved by changing milk fatty acid composition toward more unsaturation. Diet of cows, e.g., feeding supplemental fish oil (FO) or roasted soybeans (RSB), and cow selection can improve the nutritional and physical properties of dairy products and their acceptability to consumers. We examined whether feeding supplemental FO or RSB to cows that had a more unsaturated milk fatty acid composition acted additively to produce butter with improved fatty acid composition and texture. Multiparous Holstein cows chosen for producing either more or less unsaturated milk fatty acid composition (n = 6 in ...


Joint Genetic Analysis Of Conception And Maintenance Of Pregnancy In Dairy Cattle Using A Linear-Threshold Model , Gustavo A. Gutierrez, P. Jeff Berger, Mary H. Healey Jan 2008

Joint Genetic Analysis Of Conception And Maintenance Of Pregnancy In Dairy Cattle Using A Linear-Threshold Model , Gustavo A. Gutierrez, P. Jeff Berger, Mary H. Healey

Animal Industry Report

A joint analysis of days open and calving success was implemented to further enhance the identification of cows with greater genetic merit for reproductive performance. Calving success is a categorical trait with similar genetic variation as days open and is analyzed jointly with days open to make effective use of the positive genetic correlation between these two traits. The joint analysis can identify cows with greater genetic merit for conception at an earlier stage of lactation and greater success at maintenance of pregnancy. The joint analysis also enhances the reliability of detecting true genetic differences between cows for fertility because ...


Bioeconomy Impacts For Dairy Animal Agriculture, Robert Tigner Jan 2008

Bioeconomy Impacts For Dairy Animal Agriculture, Robert Tigner

Animal Industry Report

A very sudden and rapid paradigm shift has been taking place in the last 3-4 years. The motor fuel/additive ethanol industry had been building infrastructure slowly for about 30 years but took off much more rapidly as oil prices rose following 2001 and federal tax policy changes in 2003. This paper will look at some of the impacts this change has had on dairy animal agriculture.


Iowa New Farms Project Update , Dale Thoreson, Robert Tigner, Kendra Crooks, Chris Mondak, Kris Kohl, Deb Van Arkel, Neil Wubben, Pat Derdzinski, Nancy Jenson, Donald Avis, Terry Janssen Jan 2008

Iowa New Farms Project Update , Dale Thoreson, Robert Tigner, Kendra Crooks, Chris Mondak, Kris Kohl, Deb Van Arkel, Neil Wubben, Pat Derdzinski, Nancy Jenson, Donald Avis, Terry Janssen

Animal Industry Report

A general description of the Iowa New Farms project was presented in A.S. Leaflet R 2095 in the Animal Industry Report 2006. This is an update of the project.

Six dairy farm families have immigrated or moved from other states to Iowa under the New Farms Project. There is one additional dairy that has established an Iowa base, but has done so under an E-2 Visa. All of the others are utilizing the EB-5 Visa and have located in one of the 77 Iowa counties designated by the U.S. Citizenship and Immigration Service.

The economic impact of these ...


Changes In Milk Protein And Amino Acid Composition Of Dairy Cows In Response To Fatty Liver And Intravenous Glucagon, Gerd Bobe, Gary L. Lindberg, Jerry Young, Donald C. Beitz Jan 2008

Changes In Milk Protein And Amino Acid Composition Of Dairy Cows In Response To Fatty Liver And Intravenous Glucagon, Gerd Bobe, Gary L. Lindberg, Jerry Young, Donald C. Beitz

Animal Industry Report

Intravenous glucagon cures fatty liver by improving glucose bioavailability in early lactation. Amino acids, which would be otherwise used for milk protein synthesis, are metabolized to glucose. The objective of this study was to examine whether intravenous glucagon and fatty liver change milk protein and amino acid composition in dairy cows. Multiparous Holstein cows (n=25) were designated as either normal or susceptible to fatty liver and ketosis as based on the ratio of liver triacylglycerol to glycogen being smaller or greater than 2.0 at d 6 postpartum. Cows susceptible to fatty liver were subjected for 3 weeks to ...


Parturition Invokes Changes In Peripheral Blood Mononuclear Cell Populations In Holstein Dairy Cows Naturally Infected With Mycobacterium Avium Subsp. Paratuberculosis, Elizabeth L. Karcher, Donald C. Beitz, Judith R. Stabel Jan 2008

Parturition Invokes Changes In Peripheral Blood Mononuclear Cell Populations In Holstein Dairy Cows Naturally Infected With Mycobacterium Avium Subsp. Paratuberculosis, Elizabeth L. Karcher, Donald C. Beitz, Judith R. Stabel

Animal Industry Report

Twenty-one multiparous and two primiparous Holstein cows were grouped according to infection status with Mycobacterium avium subsp. paratuberculosis (MAP), the causative microorganism for Johne’s disease (JD). The effect of parturition and infection on the percentages of CD4 + , CD8 + , and T-cells, B-cells, and monocytes in the peripheral blood were monitored. The data suggest that changes in the percentages of lymphocyte subsets and monocytes are modulated by both infection status and the periparturient period.


Antigen-Specific B Cell Responses Of Vaccinated, Neonatal Calves , Monica R. Foote, Brian J. Nonnecke, Donald C. Beitz, W. Ray Waters Jan 2008

Antigen-Specific B Cell Responses Of Vaccinated, Neonatal Calves , Monica R. Foote, Brian J. Nonnecke, Donald C. Beitz, W. Ray Waters

Animal Industry Report

The immune response of newborn calves to early vaccination is often variable and frequently characterized by marginal or nonexistent antibody responses. The B cell subpopulation of immune cells is pivotal in the production of antibody and has not been characterized completely in the newborn calf. Results from this research describe the composition and antigen-specific responses of B cell populations in preruminant calves vaccinated at an early age. Although preliminary, these data indicate that the responsiveness of B cell population in young calves is dependent on the nature of the vaccine and less on animal maturity. This research provides important new ...