2012 Beef Cattle Report: Table of Contents

Cow/Calf Supplementing Gestating Beef Cows Grazing Cornstalk Residues................ 5 Effect of Corn Stalk Grazing and Baling on Cattle Performance and Irrigation Needs............... 8 Nutritive Value and Amount of Corn Plant Parts................... 11 Wheat Straw, Distillers Grains, and Beet Pulp for Late Gestation Beef Cows......... 13 Influence of Weaning Date and Pre-partum Nutrition on Cow-Calf Productivity........ 15 Effect of Calving Period on Heifer Progeny..................... 18 Evaluating Conventional and Sexed Semen in a Commercial Beef Heifer Program.................... 20 Late Gestation Supplementation Impacts Primiparous Beef Heifers and Progeny..................... 22 Nutritional Regime and Antral Follicle Count Impact Reproductive Characteristics in Heifers................ 24 Vascular Endothelial Growth Factor A(VEGFA) in Ovulatory Follicles.............. 26 Oocyte mRNA and Follicle Androgen Levels Associate with Fertility...............28 The Simmental Breed: Population Structure and Generation Interval Trends....... 30 Association of Myostatin on Performance and Carcass Traits in Crossbred Cattle............. 32 Economic Analysis of Keeping a Nonpregnant Cow................ 35 Effect of Post-Weaning Heifer Development System on Average Daily Gain, Reproduction, and Adaptation to Corn Residue During First Pregnancy.............. 37 Impact of Post-Weaning Beef Heifer Development System on Average Daily Gain, Reproduction, and Feed Efficiency........ 39 Heifer Development: Think Profit, Not Just Cost or Revenues.......... 41 Beef Heifer Development and Profitability.......... 43 Growing Research Results are Dependent on Accurate Cattle Weights................... 45 Forage Availability and Quality of No-till Forage Crops for Grazing Cattle.................. 47 Strategies of Supplementing Dried Distillers Grains to Yearling Steers on Smooth Bromegrass Pastures.................. 49 Comparison of Feeding Dry Distillers Grains in a Bunk or on the Ground to Cattle Grazing Subirrigated Meadow............. 51 Byproducts with Low Quality Forage to Grazing Cattle............... 53 Effects of Forage Type, Storage Method, and Moisture Level in Crop Residues Mixed with Modified Distillers Grains........ 55 Effect of Storage Method on Nutrient Composition and Dry Matter Loss of Wet Distillers Grains................. 58 Spoilage of Wet Distillers Grains Plus Solubles and Feed Value................. 61 Finishing Increasing Levels of Condensed Distillers Solubles and Finishing Performance.................. 64 Feeding Condensed Distillers Solubles in Finishing Diets Containing WDGS or Synergy..................... 66 Metabolism of Finishing Diets Containing Condensed Distillers Solubles and WDGS................... 68 Wet Distillers Grains and Ratios of Steam-Flaked and Dry-Rolled Corn........ 70 Effect of Corn Processing on Feedlot Steers Fed Sugarbeet Pulp................ 73 Distillers Grains with Solubles and Ground Ear Corn in Feedlot Diets............ 75 Feeding Field Peas in Finishing Diets Containing Wet Distillers Grains Plus Solubles.................. 77 Ruminal Degradable Sulfur and Hydrogen Sulfide in Cattle Finishing Diets... 79 Meta-Analysis of the Effect of Dietary Sulfur on Feedlot Health.................. 82 Complete-feed Diet RAMPTM in Grain Adaptation Programs.................. 85 Use of Complete-feed Diets RAMPTM and Test Starter for Receiving Cattle....... 87 Effects of RAMP on Feed Intake and Ruminal pH During Adaptation to Finishing Diets.................. 89 Potassium for Feedlot Cattle Exposed to Heat Stress............... 91 Feeding Modified Distillers Grains with Solubles and Wet Corn Gluten Feed (Synergy) to Adapt Cattle to Finishing Diets.................... 94 Using Beet Pulp to Adapt Cattle to Finishing Diets.................. 96 Effect on Performance and Nutrient Mass Balance of Feeding Micro-Aid in Wet Distillers Grains Plus Solubles Diets........ 98 Effects of Barley Diets with Distillers Grains Plus Solubles on Feedlot Performance and N and P Balance..................101 Feedlot Manure Utilization as Influenced by Application Scheme and Diet................104 Chemical Treatment of Low-quality Forages to Replace Corn in Cattle Finishing Diets...............106 Reducing Particle Size Enhances Chemical Treatment in Finishing Diets..................108 Factors Influencing Profitability of Calf-Fed Steers Harvested at Optimum Endpoint.................110 Grazing Supplementation and Subsequent Feedlot Sorting of Yearling Cattle..............112 Impact of Sorting Prior to Feeding Zilpaterol Hydrochloride on Feedlot Steers...............115 Beef Products Condensed Distillers Solubles and Beef Shelf Life...............119 Effects of Antioxidants on Beef in Low and High Oxygen Packages..................122 Dietary Antioxidants and Beef Tenderness During Retail Display in High O2..................124 Effects of Freezing and Thawing Rates on Tenderness and Sensory Quality of Beef Subprimals...................127 Subprimal Freezing and Thawing Rates Affect Beef at Retail....................130 Statistics Used in the Nebraska Beef Report and Their Purpose............13