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Lesson 13: Using Dietary Strategies to Reduce the Nutrient Excretion of Feedlot Cattle -Galen Erickson and Todd Milton

Intended Outcomes
The participants will

• Develop a general understanding of nitrogen (N)(protein) and phosphorus (P) metabolism in feedlot cattle.
• Learn the recommended N and P requirements for feedlot cattle to minimize overfeeding of these nutrients.
• Develop an understanding of potential dietary strategies that will maintain or maximize animal performance and minimize total nutrient excretion.

Contents

1. Introduction
2. Nitrogen and P Excretion in Feedlot Cattle and its Fate
3. Nitrogen and P Use by Feedlot Cattle
4. Dietary Management Strategies that Reduce N and P Excretion in Feedlot Cattle
5. Appendix A. Environmental Stewardship Assessment: Nutritional evaluation of feedlot operations

Activities
The participants will

• Calculate late the amount of N and P excreted by feedlot cattle.
• Evaluate the effects of ration formulation changes on N and P excretion..