2000 Nebraska Beef Cattle Report

Cow-Calf
Age of Calf at Weaning of Spring-Calving Beef Cows and the Effect on Production Economics
Supplementing Metabolizable Protein to Yearling Heifers Grazing Winter Range
Refinement of the MGA/PGF Synchronization Program for Heifers Using a 19-Day PGF Injection
Replacement Heifer Development Programs
Copper Levels and Sources in Pre- and Post-calving Diets of First-Calf Cows

Growing
Effects of Length of Grain Feeding and Backgrounding Programs on Beef Carcass Characteristics
Compensatory Growth Response and Breakeven Economics of Yearling Steers on Grass
Evaluation of the 1996 Beef Cattle NRC Model Predictions of Intake and Gain for Calves Fed Low or Medium Energy Density Diets
Escape Protein Supplementation of Yearling Steers and Summer Born Calves on Native Sandhills Range
Metabolizable Protein Estimates of Treated Soybean Meal Products
Protein Evaluation of Porcine Meat and Bone Meal Products
Sugar Beet Pulp and Corn Silage for Growing Yearling Steers
Whole or Cracked Corn in Growing Rations or Steer Calves

Finishing
Influence of Diet on Total and Acid Resistant E. coli and Colonic pH
Effects of Programmed Gain Feeding Strategies on Performance and Carcass Characteristics of Yearling Steers
Sorting or Topping-off Pens of Feedlot Cattle
Growth Implants for Heifers
Delayed Implant Strategies Using Synovex® PlusTM on Performance and Carcass Characteristics in Finishing Yearling Steers
Effect of DiaFil (Diatomaceous Earth) Fed With or Without Rumensin® and Tylan®, on Performance, Internal Parasite and Coccidiosis Control in Finishing Cattle
The Effect of V-Max® on Performance and Carcass Characteristics of Finishing Cattle Fed Corn and Corn By-product Finishing Diets
Effects of Increasing Rumensin Level During a Potential Acidosis Challenge
Solvent-extracted Germ Meal as a Component of Wet Corn Gluten Feed: Effect on Ruminal Acidosis
Effect of Dry, Wet, or Rehydrated Corn Bran on Performance of Finishing Yearling Steers
Phase-feeding Metabolizable Protein for Finishing Steers
Dietary Phosphorus Effects on Waste Management and Nutrient Balance in the Feedlot
Effect of Increasing Dietary Corn Silage on Performance, Digestibility and Nitrogen Mass Balance in the Feedlot
Feed Program Impact on Land Requirements for Managing Manure Nutrients from a Feedlot
Exporting Feedlot Manure to Off-farm Users
Cleaning Coliform Bacteria from Feedlot Water Tanks

Beef Products
Adding Value to Low-quality Beef Muscles Through Glycolytic Inhibition in Pre-rigor Muscle
The Effects of Induced Stress and Supplemental Chromium on Meat Quality of Finishing Heifers

Acknowledgments

Appreciation is expressed to the following firms, associations or agencies who provided grant support for research in the beef cattle program.
Cargill Corn Milling, Blair, NE Chief Industries, Hastings, NE C R Minerals, Golden, CO Elanco Animal Health, Indianapolis, IN Fats and Proteins Research Foundation, Chicago, IL Fort Dodge Animal Health, Overland Park, KS Hoechst Roussel Agri.-Vet, Somerville, NJ Hubbard Feeds, Inc., Mankato, MN International Stock Food Corporation, Marietta, GA Lignotech, Rothschild, WI LB1206, Preharvest E. coli 0157:H7 Research, Lincoln, NE Minnesota Corn Processors, Columbus, NE		Novartis Seeds, Golden Valley, MN Nebraska Beef Council, Kearney, NE Nebraska Grain Sorghum Development, Utilization and Marketing Board, Lincoln, NE Nebraska Technology Development Corp., Lincoln, NE Pfizer Animal Health, Groten, CT Roche Vitamins, Inc., Parker, CO Select Sires, Plain City, OH Soypass Royalty Funds, University of Nebraska, Lincoln, NE U.S. Poultry and Egg Assoc., Atlanta, GA Zinpro Mineral Corp., Edina, MN
Appreciation is also expressed to the following firms who provided products or services.
ABS Global, Inc., DeForest, WI Alltech, Inc., Nicholasville, KY Alta Genetics, Ft. Collins, CO Boehringer Ingelheim Co., St. Joseph, MO Cargill Corn Milling, Blair, NE Chief Industries, Hastings, NE Darling International, Irving, TX Elanco Animal Health, Indianapolis, IN Excel Corp., Schuyler, NE Fort Dodge Animal Health, Overland Park, KS Chr. Hansen Biosystems, Milwaukee, WI Hoechst Roussel Agri.-Vet, Somerville, NJ		International Stock Food Corporation, Marietta, GA Iowa Limestone Co., Des Moines, IA Lignotech, Rothschild, WI Liquid Feed Commodities, Fremont, NE Minnesota Corn Processors, Columbus, NE National Byproducts, Des Moines, IA Pfizer Animal Health, Groten, CT Pharmacia, Upjohn Co., Kalamazoo, MI Sanofi Animal Health, Inc., Overland Park, KS SEM Minerals, Quincy, IL Western Sugar, Scottsbluff, NE

Appreciation is also expressed to the following research technicians, unit managers, and crew involved in the research programs at our various locations.
Agricultural Research and Development Center, Ithaca			Animal Science Department, Lincoln
Bob Broweleit Jeff Bergman Rob Cooper Logan Dana Roger David Dan Herold Terry Kamphaus Don Kuszak	Don McClure Allison Miller Karl Moline Ken Rezac Doug Rudeen Keith Ruff Jon Simon		Deb Clopton Galen Erickson Janet Hyde D.J. Jordon Machele Miller Martin Mussard	Clyde Naber Ken Pearson Rosemarie Rosario Calvin Schrock Tony Scott Candice Toombs Casey Wilson
Gudmundsen Sandhills Laboratory, Whitman			Panhandle Research and Extension Center, Scottsbluff
Andy Applegarth June Emerison	Jackie Musgrave Troy Smith		Nabor Guzman	Paul McMillen
West Central Research and Extension Center, North Platte			Dalbey-Halleck Farm
Tom Arensdorf Rex Davis	Russell Sandberg		Mark Dragastin
Northeast Research and Extension Center, Norfolk
Wanka Cerkoney Bob Frerichs	Kevin Heithold Lee Johnson

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File MP80-A under: BEEF
Issued January 2000; 3,000 printed.

Electronic version issued February 2000
pubs@unl.edu

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Issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Elbert C. Dickey, Director of Cooperative Extension, University of Nebraska, Institute of Agriculture and Natural Resources.

University of Nebraska Cooperative Extension educational programs abide with the non-discrimination policies of the University of Nebraska-Lincoln and the United States Department of Agriculture.