1998 Nebraska Beef Cattle Report

Cow-Calf
Spring versus Summer Calving for the Nebraska Sandhills: Production Characteristics
Performance of Summer- and Spring-Born Calves Finished as Calves or Yearlings
Use of the NRC Model for Evaluating Nutrient Balances of Grazing Beef Cattle
Dried Poultry Waste as a Protein Supplement for Cows Grazing Winter Forages
Escape Protein Supplementation and Weaning Effects on Calves Grazing Meadow Regrowth

Calving Difficulty and Calf Response to Stress
Effect of Summer Grazing on Crude Protein and Digestibility of Winter Diets of Cattle in the Nebraska Sandhills
Ruminal Degradation of Rubisco by Beef Cattle Grazing Switchgrass and Big Bluestem
Evaluating Stress in Calves Weaned at Three Different Ages
Induction of Estrus in Anestrous Suckled Beef Cows
A Novel Estrous Synchronization Program for Beef Cattle Using Melengestrol Acetate
Effects of Luteinizing Hormone Releasing Hormone Antagonist On The Bovine Corpus Luteum
Regulation of LH Secretion by Progesterone in Heifers
Prolonged Elevated Concentrations of Estradiol Do Not Affect Conception Rates in Beef Cattle
Growing
Evaluation of Feather Meal for Calves Grazing Cornstalks
Feather Meal as a Source of Sulfur Amino Acids for Growing Steers
Cull Dry Edible Beans in Growing Calf Rations
Comparative Calf Grazing of Corn and Soybean Residues

Finishing
Solvent-Extracted Germ Meal for Receiving Calves
Solvent-Extracted Germ Meal, Corn Bran and Steep Liquor Blends for Finishing Steers
Lipid Sources in Finishing Diets for Yearling Steers
An Enzyme-Microbial Feed Product for Finishing Steers
Lime Filtrate as a Calcium Source for Finishing Cattle
Extended Grazing and Byproduct Diets in Beef Growing Finishing Systems
Effect of Winter Gain on Summer Rate of Gain and Finishing Performance of Yearling Steers
Summer and Fall Forage Grazing Combinations: Five-Year Summary
Metabolism and Digestibility of Corn Bran and Corn Steep Liquor/ Distillers Solubles
Effects of Feed Intake Variation on Acidosis and Performance of Finishing Steers
Observations on Acidosis Through Continual Feed Intake and Ruminal pH Monitoring
Phosphorus Requirement of Finishing Yearlings
Use of the NRC Model for Predicting Nutrient Balances of Finishing Cattle
Evaluation of 1996 NRC for Protein and Phosphorus Requirements of Finishing Cattle
Nutrient Balance of Nitrogen, Organic Matter, Phosphorus and Sulfur in the Feedlot
Nutrient Balance on Nebraska Feedlots

New Methods and Technology
In Situ Method for Estimating Forage Protein Degradability

Beef Products
Tenderness and Retail Stability of Hydrodyne-Treated Beef
Dietary Calcium and Phosphorous: Relationship to Beef Tenderness and Carcass Maturity

Acknowledgments

Appreciation is expressed to the following firms, associations or agencies who provided grant support for research in the beef cattle program.
Biotal Inc., Eden Prairie, MN Cargill Corn Milling, Blair, NE Cargill Molasses Liquid Products, Elk River, MN Elanco Animal Health, Indianapolis, IN Fats and Proteins Research Foundation, Chicago, IL Fort Dodge Animal Health, Overland Park, KS Garrison and Townsend Inc., Hereford, TX InterAg Inc., Hamilton, New Zealand Milton G. Waldbaum Co., Wakefield, NE Minnesota Corn Processors, Columbus, NE Moorman Manufacturing Co., Quincy, IL Nature s Way, Inc., Horton, KS		Nebraska Beef Council, Kearney, NE Nebraska Dept. of Agriculture, Lincoln, NE Novus International, St. Louis, MO Nebraska Grain Sorghum Development, Utilizations, and Marketing Board, Lincoln, NE Pioneer Hi-Bred International, Inc., West Des Moines, IA Soypass Royalty Funds, University of Nebraska, Lincoln, NE The North Central Region Sustainable Agriculture Research and Education Program, Lincoln, NE USDA-NRI Competitive Grants Program U.S. Poultry and Egg Association, Atlanta, GA Zinpro Mineral Corp., Edina, MN
Appreciation is also expressed to the following firms who provided products or services.
Cargill Corn Milling, Blair, NE Chief Industries, Hastings, NE Darling International, Irving, TX Elanco Animal Health, Indianapolis, IN Excel Corp., Wichita, KS Fort Dodge Animal Health, Overland Park, KS J.M. Huber Corp., Quincy, IL Hoechst Roussel Agri.-Vet, Somerville, NJ Hydrodyne, Inc., San Juan, PR InterAg Inc., Hamilton, New Zealand Iowa Limestone Co., Des Moines, IA		Liquid Feed Commodities, Fremont, NE Merck AgVet Division, Rahway, NJ Minnesota Corn Processors, Columbus, NE Moorman Manufacturing Co., Quincy, IL Pharmacia & The Upjohn, Inc., Kalamazoo, MI Rhone-Poulenc, Atlanta, GA Sanofi Animal Health, Inc., Overland Park, KS USDA, ARS, Meat Science Research Laboratory, Beltsville, MD USDA, AMS, Washington, D.C.

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 Borweleit Jeff Bergman Dan Herold Don Kuszak Terry Kamphaus Don McClure	Allison Miller Karl Moline Ken Rezac Doug Rudeen Keith Ruff		Rob Cooper Galen Erickson Katherine Gilson D.J. Jordon Mark Klemesrud	Debra Lambrecht Brad Lindsey Machele Miller Ken Pearson Mike Wehrman
Gudmundsen Sandhills Laboratory, Whitman			Panhandle Research and Extension Center, Scottsbluff
Andy Applegarth Jacki Johnson Mick McFadden	Troy Smith June Ueckert		Nabor Guzman Paul McMillen Brad Van Pelt
West Central Research and Extension Center, North Platte
Tom Arensdorf Dave Colburn	Rex Davis Russell Sandberg

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File MP69-A under: BEEF
Issued January 1998; 3,000 printed.

Electronic version issued February 1998
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.