1997 Nebraska Beef Cattle Report

Cow-Calf
Seasonal Changes in Protein Degradabilities of Sandhills Native Range and Subirrigated Meadow Diets and Application of a Metabolizable Protein System
First Limiting Nutrient of Native Range for Summer Calving Cows During the Breeding Season and Late Lactation
Rumen Degradable Protein Requirement of Gestating Summer Calving Beef Cows Grazing Dormant Native Sandhills Range
Supplemental Protein on Performance of Lactating Beef Heifers
Evaluation of Feather Meal for Cows Grazing Cornstalks
Effects of Supplementing High Levels of Cu, Co, Mn, and Zn after Calving on Productivity of Two-Year-Old Cows
Effects of Copper and Selenium Injections on Cow Productivity and Concentration of Copper in Liver Biopsy Samples
Effects of Sire EPD, Dam Traits and Calf Traits on Calving Difficulty and Subsequent Reproduction of Two-Yr-Old Heifers
Growing
Cornstalk Grazing in Protected and Unprotected Fields
Comparative Grazing of Corn and Soybean Residue
Grazing Corn Residues in Conventional and Ridge-Till Planting Systems
Continuous vs Rotational Stocking of Warm-season Grasses at Three Stocking Rates
Cover Crops in Crop/Livestock Production Systems
Effect of Crop Residue Grazing on Crop Production-Update of Research Activities

New Methods and Technology
Estimating In Situ Degradability of Protein in Forages
Ammonia (NPN) Utilization by Prevotella ruminicola is Affected by the Availability of Peptides
Mutants of Prevotella ruminicola Defective in Peptidase Activity Impact on Ammonia
Biochemical Characterization of a Peptidase Enzyme from the Ruminal Bacterium Prevotella ruminicola
Effect of Rumensin and Feed Intake Variation on Ruminal pH

Finishing
Evaluating Breakeven for Various Management Systems for Different Breed Types from Weaning to Slaughter
Forage Combinations for Summer and Fall Grazing
Synchronizing Micotil Treatment with Time of Sickness in Newly Received Calves
Digestibility of Dry-rolled Corn, Wet Corn Gluten Feed, and Alfalfa Hay in Receiving and Finishing Diets
Lysine Requirements for Feedlot Cattle
Effect of Dried Poultry Waste on Performance of Finishing Yearling Steers
Wet Corn Gluten Feed as a Source of Rumen Degradable Protein for Finishing Steers
Evaluation of Corn Bran and Corn Steep Liquor for Finishing Steers
A Bacterial Preservative for Ensiled High-Moisture Corn
A Low Roughage Diet Alternative for Finishing Cattle
Time of Feeding Influence on Cattle Exposed to Heat
Effects of Heat Exposure on Adapting Feedlot Cattle to Finishing Diets
Effects of Feeding Level and Diet Energy Density on Cattle Exposed to Heat
Composting of Feedlot Waste-Update of Research Activities

Acknowledgments

Appreciation is expressed to the following firms, associations or agencies who provided grant support for research in the beef cattle program.
Ag Tech Products, Inc., Waukesha, WI Cargill Corn Milling, Blair, NE Chr. Hansen Bio Systems, Milwaukee, WI Elanco Animal Health, Indianapolis, IN Fats and Proteins Research Foundation, Chicago, IL Hoechst-Roussel Agri-Vet Co., Somerville, NJ Hubbard Milling, Inc., Mankato, MN Lignotech, U.S., Inc., Rothschild, WI Milton G. Waldbaum Co., Wakefield, NE Minnesota Corn Processors, Columbus, NE National Byproducts, Des Moines, IA Natur s Way, Inc., Horton, KS U.S. Poultry & Egg Assoc., Atlanta, GA Soypass Royalty Funds, University of Nebraska, Lincoln, NE Zinpro Mineral Corp., Edina, MN
Appreciation is also expressed to the following firms who provided products or services.
ABS Global, Inc., DeForest, WI Cargill Corn Milling, Blair, NE Darling International, Omaha, NE Elanco Animal Health, Indianapolis, IN Hoegemeyer Hybrids, Hooper, NE Hormel, Austin MN J. M. Huber Corp., Quincy, IL IBP, Inc., West Point, Dakota City, and Lexington, NE		Iowa Limestone Co., Des Moines, IA Liquid Feed Commodities, Fremont, NE Minnesota Corn Processors, Columbus, NE Parker Livestock Supply, Fremont, NE Purina Mills Inc., St. Louis MO Rhone Merieux, Inc., Athens, GA Rhone-Poulenc, Inc., Atlanta, GA U.S. Meat Animal Research Center, Clay Center, NE

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File MP67-A under: BEEF
Issued January 1997; 3,000 printed.

Electronic version issued February 1997
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.