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Ruminant Nutrition Symposium

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19th Symposium, January 29-30, 2008

Glycerol and Other Energy Sources for Metabolism and Production of Transition Dairy Cows	Arnold R. Hippen, South Dakota State University
The Effects of Heat Stress on Production, Metabolism and Energetics of Lactating and Growing Cattle	Lance Baumgard, University of Arizona
Bringing Feed Efficiency Technologies to the Beef Industry: Challenges and Opportunities	Gordon Carstens, Texas A&M University
Can Nutrient Synchrony Affect Performance of Forage-Fed Cattle?	Matt Hersom, University of Florida
Corn Silage – Facts, Fantasies and the Future	Fred Owens, Pioneer Hi-Bred International
Recent Advances in Bacterial Silage Inoculant Technology	Adegbola Adesogan, University of Florida
Gossypol Intake from Cottonseed Feedstuffs – A Performance Concern for Ruminants?	José Santos, University of Florida
Utilization of Whole Cottonseed and Hay in Beef Cow Diets	Gary Hill, University of Georgia
Alternative Feeds for Beef Cattle During Periods of Low Forage Availability	Matt Poore, North Carolina State University
Influence of Dietary Plasma Proteins on Supporting Animal Immunity Systems	Joy Campbell, APC Inc.
Immune System Responses to Diseases/Disorders in the Dairy Animal and Potential Effects of Essential Fatty Acids	Charles Staples, University of Florida

18th Symposium, January 30-31, 2007

Dietary Energy Density for the Close-Up Dry Cow – Postpartum Performance	Gabriella Varga, The Pennsylvania State University
Ruminal Acidosis in Dairy Cows: Balancing Physically Effective Fiber With Starch Availability	Karen Beauchemin, Agric.and Agri-Food Canada
Nutritional Strategies to Enhance Immunity During the Transition Period of Dairy Cows	Matt Waldron, University of Vermont
Vitamins and Minerals Functioning as Antioxidants with Supplementation Considerations	Lee McDowell, University of Florida
Effect of Selenium Source on Production, Reproduction, and Immunity of Lactating Dairy Cows	William Thatcher, University of Florida
Effects of Pre-shipping Management on the Performance of Florida Beef Calves in the Receiving Feedlot	John Arthington, University of Florida
Strategic Addition of Dietary Fibrolytic Enzymes for Improved Performance of Lactating Dairy Cows	Gbola Adesogan, University of Florida
Use of Milk or Blood Urea Nitrogen to Identify Feed Management Inefficiencies and Estimate Nitrogen Excretion by Dairy Cattle and Other Animals	Rick Kohn, University of Maryland
Strategies, Benefits, and Challenges of Feeding Ethanol Byproducts to Dairy and Beef Cattle	David Schingoethe, South Dakota State University
Nutrition and Management During Gestation: Impacts on Lifelong Performance	Joel Caton, North Dakota State University
Do Grazing Beef Cows Benefit From Supplemental Anionic Salts?	Matt Hersom, University of Florida

17th Symposium, February 1-2, 2006

Strategic Manipulation of RDP and RUP Supply to Meet the Protein Needs of Beef Cows	Alfredo DiCostanzo, University of Minnesota
Improving Nitrogen Utilization in the Rumen of the Lactating Dairy Cow	Glen Broderick, U.S. Dairy Forage Res. Center
The Role of Amino Acid Nutrition in Milk Yield and Milk Components	Brian Bequette, University of Maryland
Milking Them for All They’re Worth	David Zartman, The Ohio State University
Encapsulating Nutrients to Improve Nitrogen Utilization and Reproduction	Steven Emanuele, Balchem Corporation
A Factorial Approach to Energy Supplementation for Grazing Beef Cattle	Matt Hersom, University of Florida
Trace Mineral Nutrition and Immune Competence in Cattle	John Arthington, University of Florida
Nutritional and Metabolic Effects on the Immune Competence of the Periparturient Cow	Jesse Goff, National Animal Disease Center
Uses and Abuses of Near Infrared Reflectance Spectroscopy for Feed Analyses	Dan Undersander, University of Wisconsin
Factors Affecting Corn Silage Quality in Hot and Humid Climates	Gbola Adesogan, University of Florida
Milk Fat Depression in Dairy Cows - Influence of Supplemental Fats	Charles Staples, University of Florida

16th Symposium, February 1-2, 2005

Formulating Diets with Optimum Cation-Anion Difference for Lactating Dairy Cows	David Beede, Michigan State University
Bioavailability and Antagonists of Trace Minerals in Ruminant Metabolism	David Ledoux, Marcia Shannon, U. of Missouri
Selenium Toxicity for Ruminants - Paranoia or Precaution	L. R. McDowell et al., University of Florida
Effect of Rumensin on Performance Parameters of Lactating Dairy Cows Nine-trial Registration Summary	Elvin Thomas et al., Elanco Animal Health
Phase-Feeding the Beef Herd for Improved Feed Utilization	Matt Hersom, University of Florida
Predicting Forage Intake by Grazing Ruminants	Sam Coleman, USDA-ARS-STARS, Brooksville
Improving Forage Quality and Animal Performance with Fibrolytic Enzymes	A. T. Adesogan, University of Florida
Randomness Rules: Living with Variation in the Nutrient Composition of Concentrate Feeds	William Weiss, The Ohio State University
Molds and Mycotoxins in Feedstuffs - Prevention and Treatment	L. W. Whitlow, W. M. Hagler, Jr., NC State U.
Glucose Balance in Cattle	C. K. Reynolds, The Ohio State University
Fat and Fat-Soluble Vitamin Supplementation for Improving Reproduction of the Dairy Cow	C. R. Staples et al., University of Florida

15th Symposium, January 22-23, 2004

Terra Incognita: Updates on Feeding Nonfiber Carbohydrates to Dairy Cows (Yes, It Does Matter)	Mary Beth Hall, University of Florida
Amino Acid Balancing in the Context of Metabolizable and Rumen Undegradable Protein Requirements	Charles Schwab, University of New Hampshire
Residual Feed Intake and Feed Efficiency: Differences and Implications	Erasmus Okine, University of Alberta
Residual Feed Intake: Animal Performance, Carcass Quality, and Body Composition	Erasmus Okine, University of Alberta
Challenges of Meeting Cow Demands for Omega Fatty Acids	Thomas Jenkins, Clemson University
Optimizing the Transition Cow Management System on Commercial Dairy Farms	Thomas Overton, Cornell University
Recent Insights into Ruminant Immune Function: Effects of Stress and of Immunostimulatory Feed Products	Neil Forsberg, Oregon State University
Bargains and Rip-Offs: Assessing the Economic Value of Feedstuffs Using Market Prices	Normand St-Pierre, The Ohio State University
Managing Phosphorus, Cattle, and the Land: Results of the Buck Island Project	John Arthington, University of Florida

14th Symposium, January 16-17, 2003

Impact of Vitreousness, Processing, and Chop Length on the Utilization of Corn Silage by Dairy Cows	Randy Shaver
Cow Comfort and New Barns: the Latest in Florida	Dave Bray, Roger Natzke, Ray Buckland
The Forage Analysis Laboratory – Partner or Antagonist?	Ralph Ward
What You Feed vs. What You Get: Feed Efficiency as An Evaluation Tool	Mary Beth Hall
Hello to Trans-Fatty Acids and Good-Bye to Fatty Liver in Dairy Cattle	Lokenga Badinga, Kurt Selberg, Charles Staples
Copper Antagonists in Cattle Nutrition	John Arthington
Trace Mineral Ingredients: Manufacturing, Quality Concerns, Bioavailability, and Formulation	Tim Costigan
Monitoring Postpartum Health in Dairy Cows	Carlos Risco
Techniques to Reduce Free-Choice Liquid Supplement Consumption in Beef Cattle	Paul Davis, William Kunkle, and John Arthington
Sponsors

13th Symposium, January 10-11, 2002

Overview and Application of the 2001 NRC Energy System	William Weiss
Relative Forage Quality: An Alternative to Relative Feed Value And Quality Index	John Moore
What are Feeds Worth?: A Critical Evaluation of Nutritive Value Methods	Adegbola Adesogan
Developing New Specialty Grains for Ruminants	Fred Owens
Feeding Fatty Acids For Fertility	Charles Staples
Selenium Availability and Methods of Selenium Supplementation For Grazing Ruminants	Lee McDowell
Mineral Supplementation in the Grazing Cow Herd	John Arthington
Overview of Mineral Nutrition in Cattle: The Dairy and Beef NRC	Jerry Spears
Vitamin Stability in Premixes and Feed	Mike Coelho
Working With Sugars and Molasses	Mary Beth Hall

12th Symposium, January 11-12, 2001

Program
Use of Economical Fat Sources in Molasses-Based Supplements Fed to Grazing Beef Cattle in South Florida	Findlay Pate
Conjugated Linoleic Acid: More Than an Anticancer Factor	Lokenga Badinga
Direct-Fed Microbials For Dairy Cattle	Limin Kung
Enzymes For Lactating Dairy Cows: New Theories and Applications	Limin Kung
How Should We Formulate For Non-NDF Carbohydrates?	Mary Beth Hall
Effect of Using High Molybdenum Biosolids (Sludge) as Fertilizers on Copper Status of Beef Cattle	Lee McDowell
Biotin, Hoof Health and Milk Production in Dairy Cows	William Seymour
Technologies For Delivering Passive Immunity to Newborn Calves	John Arthington
Factors Affecting Calf Livability	Danny Simms
Harvesting, Storing and Feeding Forages as Round Bale Silage	William Kunkle

11th Symposium, January 13-14, 2000

Program
Societal and Legislative Challenges for Animal Agriculture	R.G. Zimbelman
Unsaturated Fats: the Rumen and Beyond	C.R. Staples, S.L. Boken, W.W. Thatcher
Ration Management: Impacts and Consequences on Performance	S. Stokes, G. Bethard
Effects of Carbohydrate Source, Feed Additives and Feeding Systems on Response to Supplements for Beef Cattle Fed Forage Based Diets	W.E. Kunkle, J.T. Moore, et al.
Planning and Conducting Successful Field Trials to Test Product Effects on Animal Performance	H.H. Van Horn, C.J. Wilcox, et al.
Effect of Nitrogen Fertilization and Harvest Date on Forage Quality Factors and Protein Fractions	C.R. Johnson, B.A. Reiling, et al.
Defining Mineral Requirements of the Dairy Cow: Why One Size Does Not Fit All	J.P. Goff
Optimizing Immune Competence Through Nutrition	J.D. Arthington
Physically Effective NDF and Its Use in Formulating Dairy Rations	D.R. Mertens
High Starch Rations for Ruminant Production	G.B. Huntington
Cotton Seed Hulls: Working With a Novel Fiber Source	M.B. Hall, A. Akinydoe

10th Symposium, January 14-15, 1999

Program
Commercialization of Biotechnology in Agriculture	C.A. Baile
Feed Ingredient Factors Influencing Intestinal Amino Acid Supply in Ruminants	N. Merchen, F. Orias
Is Methionine First Limiting Amino Acid for Growing Cattle Fed Forages?	W.E. Kunkle, D.I. Hopkins
Managing Energy Reserves to Optimize Reproduction	R.P. Lemenager, D.D. Buskirk
Options in Managing Manure Phosphorus	H.H. Van Horn
Dietary Phosphorus, Phosphorus Excretion, and Environmental Concerns	H.R. Conrad
Mycotoxins in Silage: a Silent Loss in Profit	A. Gotlieb
Corn Silage for the South: Management and New Technology	D.L. Wright
Design, Selection, and Use of TMR Mixers	D.W. Kammel
Management Strategies Against Acidosis	M.B. Hall

9th Symposium, January 15-16, 1998

Program
Plant Biotechnology: a Progress Report and a Look Ahead	M. Cline
Current Concepts in Feeding Dairy Replacements	M.J. Vandehaar
Identifying Ration Components and Their Adequacy when Optimizing Production Performance	P. Chandler
Bioavailability of Organic Forms of the Micronutrients	C. Ammerman, P.R. Henry, R. Miles
Opportunities to Increase the Contribution of Peptides to Metabolize Protein	D.B. Bates
The Problem of Mycotoxins in Feedstuffs	B. Harris
Productive and Reproductive Responses of Holstein Cows Fed Whole Cottonseeds and Given Reduced Doses of bST	C.R. Staples, H.H. Van Horn, et al.
Nutritional Management of Dairy Cows During the Transition Period	J.K. Drackley
Making Nutritional Sense of Nonstructural Carbohydrates	M. B. Hall
Supplemental Protein Sources for Grazing Beef Cattle	R.C. Cochran, H.H. Koster, et al.
Global Issues Surrounding BSE	G.G. Pearl

8th Symposium, January 16-17, 1997

Maximizing Milk Production or Minimizing Cost Using Byproduct Feedstuffs	H.H. Van Horn
Supplemental Organic Chromium for Beef and Dairy Cattle	D.N. Mowat
Use of Copper Proteinates and Copper Lysine in Animal Feeding Programs	R. Hemken
Update on Bun and Mun as a Guide for Protein Supplementation in Cattle	A. Hammond
Balancing Diets for Dairy Cattle During Heat Stress Conditions	J. West
Recent Research on Liquid Supplements for Beef Cattle	B. Kunkle
A Rancher's Focus on Cost Effective Management	C. Quinn
Proposed Mechanisms for Enzymes as Modifiers of Ruminal Fermentation	J. Newbold
Symposium Sponsors

7th Symposium, January 11-12, 1996

Program
Management Strategies for Posilac use of Dairy Herds	R.J. Collier, B.C Housewright
A Nutritional Perspective on Reproductive Management	J. Spain
Effect of Feeding a Ruminant Grade Menhanden Fish Meal on Productive and Reproductive Performance of Lactating Dairy Cows	J.M. Burke, C.R. Staples, et. al
Value of Fat in Liquid Feed	F. M. Pate
Liquid and Dry Supplements for Grazing Beef Cattle	J.E. Moore, J.G.P. Bowman, W.E. Kunkle
Effect of Molasses & Sugar Supplements on Rumen Fermentation and Animal Performance	S. M. Emanuele
Animal Protein Byproducts and Byproduct Blends for Dairy Cattle	H.H. Van Horn
Amino Acids & Their Application in Formulating Diets for Cattle	C.G. Schwab
Improving Disease Resistance with Nutrients that Bolster the Immune System	J.W. Spears
Feet and Leg Problems in Dairy Cattle	J.K. Shearer
Benefits of Supplemental Vitamin E Including Relationship to Gossypol	L.R. McDowell, J. Velasquez-Pereira, et al.

6th Symposium, January 12-13, 1995

Program
Situation Analysis: First Year of Bovine Somatotropin Availability to the Dairy Producer – An Opinion of One	J.W. Lauderdale
What’s New Growth Standards for Dairy Heifers?	H.H. Head
Using Different Management Systems for Raising Dairy Heifers	J.D. Quigley
Applying New Strategies for Raising Beef Heifers	W.E. Kunkle, R.S. Sand, P. Garces-Yepez
Chromium as an Essential Mineral Element for Domestic Animals	C.B. Ammerman, P.R. Henry
Immune Responses Affected by Micronutrients	C.F. Nockels
Improving Forage Supplementation Programs for Beef Cattle	J.E. Moore, W.E. Kunkle
Identifying the Effective Fiber Value of Whiskey Distillers Dried Grains with Solubles in Lactating Dairy Cows Diets	C.R. Staples, B.S. Oldick, et al.
Optimizing Carbohydrate Fermentation in the Rumen	W.H. Hoover, T.K. Miller
How to Use Good Feed Bunk Management Practices	A.B. Johnson
Potassium Requirements for Cow-Calf Operations	T.L. Stanton
The Cation-Anion Difference Concept: Where Are We Now?	P.W. Joyce

5th Symposium, January 12-13, 1994

Program
Update on Feed Composition Tables	L.L. Berger
Considerations for Using By-Products Feedstuffs in the Southeast	J. West
Body Energy Reserves at Puberty in Beef Heifers	C.C. Chase, R.B. Simpson, et al.
Feeding Strategies During Hot Weather	J.T. Huber
Economic Effects of Whole Cottonseed & Supplemental Tallow on Lactation when Fed with Different Forages	H.H. Van Horn, B. Harris, A.L. Adams
The Role of Probiotics in Dairy Cattle Diets	B. Harris Jr.
An Update on Iron and Selenium in Animal Nutrition	C.B. Ammerman, P.R. Henry
Identifying Copper Deficiencies Under Field Conditions	D.B. Herd
The Role of Copper and Other Mineral Proteinates in Ruminant Diets	R.W. Hemken
Protein Levels and Sources in Molasses for Growing Cattle	W.E. Kunkle, D.A. Stateler, et al.

4th Symposium, January 13-14, 1993

Program
Optimizing Ruminal Fermentation to Maximize Amino Acid Availability	J. Clark
Selecting Different Feedstuffs to Provide the Undegraded Intake Protein Needs of High Producing Dairy Cows	H.H. Van Horn, B. Harris
Manipulating Nonstructural & Structural Carbohydrates in Rations for Dairy Cattle	J. Nocek
Protein Intake and Reproductive Performance of Dairy Cows: a Review, a Suggested Mechanism, and Blood and Milk Urea Measurements	C.R. Staples, C. Garcia-Bojalil, et al.
Interactions of Nutrition with Reproductive Performance in the Southeast	L.M. Rutter
Immune Responses to Proper Nutritional Management	N.A. Cole
Utilization of Soybean Hulls in Supplementation Programs for Beef Cattle	W. Brown, J. Weigel
Vitamin E and Selenium for Ruminants	S.N. Williams, T.M. Frye, et al.
Strategies for Predicting the First Limiting Nutrient for Grazing Cattle	T. Klopfenstein
Understanding Gossypol Toxicity Problems in Feeding Cotton by-Products to Ruminant Livestock	C.A. Risco
Formulation Strategies for Cation-Anion Difference in Diet of Late Pregnant Cows	D.K. Beede

3rd Symposium, January 23-24, 1992

Program
Potential Use of Escape Protein for Grazing Cattle	D. Hutcheson
Use of Blood Urea Nitrogen Concentration to Guide Protein Supplementation in Cattle	A. Hammond
The Role of Bypass Protein in Supplying Amino Acids Needs of Lactating Cows	H.H. Van Horn, W.J. Powers
Matching Protein and Energy Supplements to Forage Quality	J. Moore
Managing Factors that Affect the Production and Utilization of Quality Forages	W. Kautz
Microbial Feed Additives for Dairy Cattle	B. Perkins
Optimizing Macro Mineral Nutrition: Pre and Post Calving	P. Chandler
Reproductive Performance as Affected by Nutrition and Environment	J.H. Britt
The Influence of Forage Type on the Production Response of Lactating Dairy Cows Supplement with Different Types of Dietary Fat	W.A. Smith, B. Harris Jr.
Laminitis: a Major Cause of Lameness in Florida Dairy Cattle	J.K. Shearer, E. Bernal
Nutra-Merge: a Simplified Computerized Ration Formulation Program for Beef and Dairy Cattle	D. Cross

2nd Symposium, January 23-24, 1991

Program
Chelated Trace Minerals in Ruminant Nutrition	J. Spears
Feeding Early Lactation Cows for Maximum Performance	M. Allen
Factors Affecting Protein and Solids-not-Fat (SNF) Content of Milk	J. Van Horn, K.C. Bachman
Interrelationships of Dietary Sodium, Potassium, and Chlorine and Cation- Anion Differences in Lactation	W.K. Sanchez, D.K. Beede
Phosphorus Utilization and Availability it’s Affect on Production and Reproduction	D. Whittington
Update on Vitamin E and Selenium Nutrition for Ruminants	L. McDowell, S. Williams
Use of Yeast Products in Dairy Cattle	J. Wohlt
Feeding Molasses Slurries to Cattle	F.M. Pate
Update on the use of NIRS in Establishing Feeding Values for Forages and Concentrates	W.F. Brown
Feeding Brood Cows at Differing Ages for Desired Body Composition	W.E. Kunkle, R.S. Sand, D.O. Rae,
Effect of Increasing Dietary Fat Content on Production and Fertility of Early Postpartum Cows	C.R. Staples, W. Thatcher et al.

1st Symposium, January 23-24, 1990

Program
Agricultural Adjustments in the 90’s or "If Cows Eat Wild Onions, Will The Milk Taste Bad?"	J. B. Rowe
Feeding for Production of Milk Components	R.S. Emery
Practical Applications of Potassium in Cation-Anion Balancing of Ruminant Rations	D.P. Hutchenon
Bioavailability of Supplemental Trace Minerals as Estimated by Tissue Accumulation	C.B. Ammerman, R.D. Miles, P.R. Henry
Using Molasses and Protein Supplements for Grazing Beef Cattle	W.E. Kunkle, D.B. Bates
Use of Molasses as a Vehicle for Liquid Supplementation of Nutrients in Total Mixed Dairy Rations	A. Lane
Concepts for Maximizing Microbial Protein Synthesis and Bypass Protein Utilization	D.B. Bates, S.C. Denham
Dietary Electrolyte Balance and Anionic Diets for Dairy Cows in Late Gestation	D.K. Beede, W.K. Sanchez, C. Wang
Comparative Value of Grass Silage and Corn Silage as Forages for cow and Heifer Diet	C.R. Staples
Use of Direct-Fed Microbials and Enzymes in Ruminant Rations	L. Kung, Jr.
Feeding for Maximum Milk Production and Reproductive Performance	B. Harris, Jr.

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