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Recent Articles in Dairy Science
Isolation, Antibiotic Resistance, And Molecular Characterization Of Campylobacter From Poultry, Swine And Dairy Cows, Willie James Taylor 
University of Tennessee, Knoxville
Isolation, Antibiotic Resistance, And Molecular Characterization Of Campylobacter From Poultry, Swine And Dairy Cows, Willie James Taylor
Doctoral Dissertations
This study was conducted to determine presence, antibiotic resistance, and genetic relatedness of Campylobacter on diverse farm types. Cloacal fecal samples from poultry (broilers, layers, and turkey breeders), and fecal rectal samples from non-poultry animals (farrowing sows, finisher pigs, and lactating dairy cows) were tested for Campylobacter using BAM protocols. Agar disk diffusion method was used to determine antibiotic resistance, and PFGE analysis to determine genetic relatedness of isolates recovered within the different farm types. Campylobacter was detected in 34.8% (range of 6.7 to 62.0%, P < 0.001) of cloacal samples from poultry, in 61.4% (range of 55.0 to 69.0%, P < 0.05), and 26.0% (range of 19.0 to 34.0%, P < 0.05) of rectal samples from pigs, and dairy cows, respectively. Antibiotic resistance was detected in 30.2% (range of ...
Cultures And Stabilizers In Cultured Dairy Foods, Phillip S. Tong 
California Polytechnic State University
Cultures And Stabilizers In Cultured Dairy Foods, Phillip S. Tong
Dairy Science
No abstract provided.
How Cultured Dairy Products Can Have A Long Shelf Life And A Clean Label, Phillip S. Tong California Polytechnic State University
How Cultured Dairy Products Can Have A Long Shelf Life And A Clean Label, Phillip S. Tong
Dairy Science
No abstract provided.
Precision-Feeding Dairy Heifers With Different Levels Of Dietary Fiber And F:C. Effects On Protein Utilization, N Efficiency, And Rumen Fermentation, G. J. Lascano, A. J. Heinrichs California Polytechnic State University
Precision-Feeding Dairy Heifers With Different Levels Of Dietary Fiber And F:C. Effects On Protein Utilization, N Efficiency, And Rumen Fermentation, G. J. Lascano, A. J. Heinrichs
Dairy Science
No abstract provided.
Biosecurity Risk Assessment Of The Fairchild Dairy Nutrition Research Center, Margaret Lynch 
University of New Hampshire
Biosecurity Risk Assessment Of The Fairchild Dairy Nutrition Research Center, Margaret Lynch
Honors Theses
No abstract provided.
Cost Of Producing Milk In Maine: Results From The 2010 Dairy Cost Of Production Survey, Richard Kersbergen, Gary Anderson, George Criner, Anthony Davis 
The University of Maine
Cost Of Producing Milk In Maine: Results From The 2010 Dairy Cost Of Production Survey, Richard Kersbergen, Gary Anderson, George Criner, Anthony Davis
Bulletin
The present study reports on a survey conducted for the Maine Milk Commission to determine the cost of milk production for 2010. This assessment was undertaken sooner than the normal three-year update because of the difficult economic climate for dairy farms in Maine.
Effect Of Nacl Addition During Diafiltration On The Solubility, Hydrophobicity, And Disulfide Bonds Of 80% Milk Protein Concentrate Powder, X. Y. Mao, P. S. Tong, S. Gualco, S. Vink California Polytechnic State University
Effect Of Nacl Addition During Diafiltration On The Solubility, Hydrophobicity, And Disulfide Bonds Of 80% Milk Protein Concentrate Powder, X. Y. Mao, P. S. Tong, S. Gualco, S. Vink
Dairy Science
We investigated the surface hydrophobicity index based on different fluorescence probes [1-anilinonaphthalene-8-sulfonic acid (ANS) and 6-propionyl-2-(N,N-dimethylamino)-naphthalene (PRODAN)], free sulfhydryl and disulfide bond contents, and particle size of 80% milk protein concentrate (MPC80) powders prepared by adding various amounts of NaCl (0, 50, 100, and 150 mM) during the diafiltration process. The solubility of MPC80 powder was not strictly related to surface hydrophobicity. The MPC80 powder obtained by addition of 150 mM NaCl during diafiltration had the highest solubility but also the highest ANS-based surface hydrophobicity, the lowest PRODAN-based surface hydrophobicity, and the least aggregate ...
Production Of Highly Concentrated, Heat-Stable Hepatitis B Surface Antigen In Maize, Celine A. Hayden, Erin M. Egelkrout, Alessa M. Moscoso, Cristina Enrique, Todd K. Keener, Rafael Jiménez-Flores, Jeffrey C. Wong, John A. Howard California Polytechnic State University
Production Of Highly Concentrated, Heat-Stable Hepatitis B Surface Antigen In Maize, Celine A. Hayden, Erin M. Egelkrout, Alessa M. Moscoso, Cristina Enrique, Todd K. Keener, Rafael Jiménez-Flores, Jeffrey C. Wong, John A. Howard
Dairy Science
Plant-based oral vaccines are a promising emergent technology that could help alleviate disease burden worldwide by providing a low-cost, heat-stable, oral alternative to parenterally administered commercial vaccines. Here, we describe high-level accumulation of the hepatitis B surface antigen (HBsAg) at a mean concentration of 0.51%TSP in maize T1 seeds using an improved version of the globulin1 promoter. This concentration is more than fourfold higher than any previously reported lines. HBsAg expressed in maize seeds was extremely heat stable, tolerating temperatures up to 55 °C for 1 month without degradation. Optimal heat stability was achieved after oil extraction of ...
Compost Bedded Pack Barns: Management Practices And Economic Implications, Randi Alyson Black 
University of Kentucky
Compost Bedded Pack Barns: Management Practices And Economic Implications, Randi Alyson Black
Theses and Dissertations--Animal and Food Sciences
Compost bedded pack (CBP) barn design and pack maintenance procedures vary considerably, making advising and problem-solving challenging. One objective of this research was to characterize herd performance and management practices employed by Kentucky CBP managers (42 farms and 47 CBP facilities). Producer satisfaction, changes in historical bulk-tank somatic cell count, and improvement in herd performance parameters after transitioning to a CBP barn support reported CBP barn system benefits. Daily milk production increased from before moving into the CBP barn to the second year after (29.3 ± 0.3 vs. 30.7 ± 0.3 kg, respectively; P < 0.05) for farms using the CBP barn as the primary housing facility (n = 8). Increasing stirring frequency, stirring depth, and ambient temperatures increased pack temperature. Increased drying rate decreased CBP moisture. Increased 20.3 cm depth CBP temperature and ambient temperatures improved cow hygiene. Mastitis-causing bacteria thrive in conditions similar to optimal composting bacteria conditions, making reduction of these bacteria difficult in an active composting environment. Producers must pay attention to other management areas where preventive measures can be employed. The New Dairy Housing Investment Analysis Dashboard provides users an interactive and flexible decision tool to make more informed facility investment decisions.
Evaluation Of Chlorine Stability In A Novel Teat Dip Disinfectant System, Leo L. Timms 
Iowa State University
Evaluation Of Chlorine Stability In A Novel Teat Dip Disinfectant System, Leo L. Timms
Animal Industry Report
Chlorine concentrations of a novel generated germicidal compound (8000 ppm available chlorine) and pre (500 and 1000 ppm) and post dip (1000 and 2000 pm) made by dilutions with initial separate additive were very stable over 11, 20, and 42 day trials. Using different additives in pre and post dips (trial 2) or just post dips (trial 3) showed reduction in chlorine to 200 ppm within 24 hrs. This novel technology shows excellent chlorine stability over time (base solution) but also the importance of the additives and their potential effects on these concentrations.
June Dairy Month Open Houses: Learning Events To Improve Consumer Understanding Of Modern Animal Agriculture, Leo L. Timms, Jennifer A. Bentley, Megan Kregel Iowa State University
June Dairy Month Open Houses: Learning Events To Improve Consumer Understanding Of Modern Animal Agriculture, Leo L. Timms, Jennifer A. Bentley, Megan Kregel
Animal Industry Report
Three dairy open houses as part of June Dairy Month events were conducted to provide the public the opportunity to experience and learn first-hand about the efforts made daily on modern dairies to achieve cow care, cow comfort and health, hygienic milking procedures, local cropping systems that provide quality feed for the dairy herd, manure management and land stewardship, respect for family and non-family workers, and overall quality and safety of milk and dairy products. These events were a product of industry partnerships. The three events reached 3900+ participants. Surveys performed at two events showed many participants had trust in ...
Iowa’S Dairy Industry: An Economic Review, Leo L. Timms Iowa State University
Iowa’S Dairy Industry: An Economic Review, Leo L. Timms
Animal Industry Report
The Iowa dairy industry has historically been important in Iowa and remains so yet today as the fifth largest sector of Iowa agriculture. Although the demographics of herd size and location within the state, the positive economic impact of the dairy industry has remained solid. Competitive advantaged that Iowa offers to the dairy industry have resulted in Iowa being the only Midwestern state that has experienced an increase in milk production over each of the past 2 decades (19% over both decades combined). With ample quality feed, stable prices, access to markets, and a strong support system for production agriculture ...
2012 Iowa Dairy Farm Survey, Leo L. Timms, Kristen Schulte Iowa State University
2012 Iowa Dairy Farm Survey, Leo L. Timms, Kristen Schulte
Animal Industry Report
A 12 page dairy survey was developed, disseminated, collected, and analyzed by ISUEO Dairy team in conjunction with the Survey & Behavioral Research Services (SBRS) at Iowa State University. The survey was sent to 1000 dairy producers (65% of total producers) using the IDALS dairy producer list with proportional representation from all areas and counties across the state. The return or completion rate was 38%. Results provide insight on the current state of the dairy industry in Iowa and will be summarized and provided through reports for educators, industry collaborators, and the public. This information will help educators and industry collaborators ...
On Farm Milk Quality Workshops Pay Dividend$, Leo L. Timms Iowa State University
On Farm Milk Quality Workshops Pay Dividend$, Leo L. Timms
Animal Industry Report
Producing the highest quality milk and dairy products ensures consumer confidence as well as enhances farm profitability through higher milk production and premium bonuses. Somatic cells or white blood cells are routinely measured in milk (individual cows and bulk tank) as a measure of quality (lower SCC = higher quality). Recent EU requirements of not exceeding 400,000 cells/ ml as an individual producer if milk ends up as part of any EU export product led both producers and industry partners to express concerns as swell as an interest in educational venues and workshops to address key areas in dairy management ...
Evaluation Of Teat Coverage Persistency And Teat Health For Four New Prototype Dry Period Persistent Barrier Teat Dips, Kelly Harryman, Leo L. Timms Iowa State University
Evaluation Of Teat Coverage Persistency And Teat Health For Four New Prototype Dry Period Persistent Barrier Teat Dips, Kelly Harryman, Leo L. Timms
Animal Industry Report
Mastitis research has shown that 40–50% of intramammary infections (IMI) are contracted during the dry or non-lactating period with the greatest percentages of these occurring during the first and last two weeks of the dry period. The ability to develop and apply external persistent barrier teat dip products (like a liquid bandage) that can persist for these 1 week periods could decrease IMI, thus improving animal health and performance, and product quality and safety. The objective of this study was to evaluate 4 new prototype faster drying persistent barrier dry cow teat dips, with particular interest and comparisons of ...
Genetic Regulation Of Feed Efficiency In Lactating Holstein Cows, Brittany N. Shonka, Diane M. Spurlock Iowa State University
Genetic Regulation Of Feed Efficiency In Lactating Holstein Cows, Brittany N. Shonka, Diane M. Spurlock
Animal Industry Report
Feed efficiency in dairy cattle represents the balance between milk production and feed intake. In the past, improvements in efficiency have been achieved through increased production with little emphasis on feed intake. However, dry matter intake (DMI) is a moderately heritable trait in lactating Holstein cows, suggesting that DMI may be altered through genetic selection. When efficiency is defined as milk energy output (MILKE) per unit of dry matter intake (DMI), high and low efficiency cows differ in MILKE but not DMI. However, considerable variation in DMI exists among cows with desirable MILKE. Thus, consideration of alternate definitions and selection ...
Evaluation Of Teat Coverage Persistency And Teat Health For One New Prototype And One Commercial Dry Period Persistent Barrier Teat Dips, Emily A. Smith, Leo L. Timms Iowa State University
Evaluation Of Teat Coverage Persistency And Teat Health For One New Prototype And One Commercial Dry Period Persistent Barrier Teat Dips, Emily A. Smith, Leo L. Timms
Animal Industry Report
Mastitis research has shown that 40-50% of intramammary infections (IMI) are contracted during the dry or non-lactating period with the greatest percentages of these occurring during the first and last two weeks of the dry period. The ability to develop and apply external persistent barrier teat dip products (like a liquid bandage) that can persist for these 1 week periods could decrease IMI, thus improving animal health and performance, and product quality and safety. The objective of this study was to evaluate 1 new prototype faster drying persistent barrier dry cow teat dip compared to a commercially available dry cow ...
Shedding Of Mycobacterium Avium Subsp. Paratuberculosis Into Milk And Colostrum Of Naturally Infected Dairy Cows Over Complete Lactation Cycles, Laura K. Bradner, Judith R. Stabel, Donald C. Beitz, Suelee Robbe-Austerman Iowa State University
Shedding Of Mycobacterium Avium Subsp. Paratuberculosis Into Milk And Colostrum Of Naturally Infected Dairy Cows Over Complete Lactation Cycles, Laura K. Bradner, Judith R. Stabel, Donald C. Beitz, Suelee Robbe-Austerman
Animal Industry Report
The primary mode of transmission of Mycobacterium avium subsp. paratuberculosis (MAP) is fecal-oral. However, MAP is also shed into the milk and colostrum of infected cows. The objective of this study was to identify ifan association exists between stage of MAP infection and days in lactation with the amount of MAP present in milk and colostrum of naturally infected cows. Results indicated that MAP is primarily shed in early lactation and in cows with advanced infection. This experiment provides crucial information to dairy producers pertaining to the threat of MAP transmission via milk and colostrum. Producers now know that allowing ...
Treatment With Antibiotics Is Detrimental To The Recovery Of Viable Mycobacterium Avium Subsp. Paratuberculosis Cultured From Milk And Colostrum Of Dairy Cows, Laura K. Bradner, Judith R. Stabel, Donald C. Beitz, Suelee Robbe-Austerman Iowa State University
Treatment With Antibiotics Is Detrimental To The Recovery Of Viable Mycobacterium Avium Subsp. Paratuberculosis Cultured From Milk And Colostrum Of Dairy Cows, Laura K. Bradner, Judith R. Stabel, Donald C. Beitz, Suelee Robbe-Austerman
Animal Industry Report
Antibiotic cocktails are frequently used as secondary decontaminants prior to the culture of Mycobacterium avium subsp. paratuberculosis (MAP). This study investigated whether secondary incubation with an antibiotic cocktail containing vancomycin, nalidixic acid, and amphotericin B after primary exposure to N-acetyl-L-cysteine-1.5% sodium hydroxide affected the recovery of viable MAP from milkexperimentally spiked with 102 to 106 cfu/ml. Results indicated that incubation with this antibiotic cocktail did decrease the incidence of contamination in culture media but it was also highly detrimental to the recovery of viableMAP. This effect was not advantageous given the low numbers of MAP naturally ...
Hydroponic Fodder Systems For Dairy Cattle?, Larry F. Tranel Iowa State University
Hydroponic Fodder Systems For Dairy Cattle?, Larry F. Tranel
Animal Industry Report
There is renewed interest in hydroponic fodder systems for dairy, livestock or poultry operations. The thought of putting one pound of seed into a hydroponic system producing 10 times its weight in fodder is appealing. However, the actual dry matter weight of the original grain to the fodder produced may or may not increase. Research reviews are very inconsistent in any dry matter production or animal performance benefits. The aim of this analysis is to assist producers weigh the high production costs of hydroponic fodder systems relative to any real or perceived nutritional benefits gained from feeding hydroponic fodder.
Popular Institutions
Popular Authors
Rafael Jiménez-Flores
California Polytechnic State University
Larry Tranel
Iowa State University
Phillip Tong
California Polytechnic State University
Lacey Rosenberg
California Polytechnic State University
Ashley Garcia
California Polytechnic State University
Vaughn Holder
University of Kentucky
Chris Herrera
California Polytechnic State University
Philip Owens
California Polytechnic State University
Gerd Bobe
Iowa State University
Amanda Lopez
University of Connecticut
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Popular Articles
Hydroponic Fodder Systems For Dairy Cattle?, Larry Tranel
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Usage Of The Penn State Forage Separator For Evaluating Particle Size Of Tmrs, Ashley Garcia
Isolation And Characterization Of Different Aggregates Of Lipid From Bovine Milk
The Effects Of Slow Release Urea On Nitrogen Metabolism In Cattle, Vaughn Holder
Design, Acnd Construction Of A Portable Artificial Insemination Chute, Chris Herrera
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Effect Of Processing On The Composition And Microstructure Of Buttermilk And Its Milk Fat Globule Membranes, Rafael Jiménez-Flores
Characterization Of Differentiation Of Bovine Mammary Epithelial Cells, Amanda Lopez
Histopathology Of Bovine Mastitis, The
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