1 / 12

Supplements for Beef Cows

Determine CP and TDN intake for beef cows, assess if requirements are met during late gestation and lactation, choose protein or energy supplements, calculate first limiting nutrient, and supplement accordingly.

joegonzalez
Download Presentation

Supplements for Beef Cows

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Supplements for Beef Cows • Example forage analysis

  2. Supplements for Beef Cows • Estimate DM intake • DMI, %BW = (120/%NDF) • DMI, %BW = (120/65) = 1.85% BW • 1,200 lb cow x 0.0185 = 22.2 lb DMI

  3. Supplements for Beef Cows • Estimate CP intake • 22.2 lb DMI x 0.085 = 1.89 lb CP

  4. Supplements for Beef Cows • Estimate TDN intake • TDN, % = 88.9 – (0.779 x %ADF) • TDN, % = 88.9 – (0.779 x 36) • TDN, % = 60.9% • 22.2 lb DMI x 0.609 = 13.5 lb TDN intake

  5. Supplements for Beef Cows • Are requirements being met? • Late gestation requirements CP TDN

  6. Supplements for Beef Cows • Are requirements being met? • Lactation – superior requirements CP TDN

  7. Supplements for Beef Cows • Do I need a protein or energy supplement? • Both contain CP and energy • Difference is relative concentration of CP

  8. Supplements for Beef Cows • Protein supplements usually have 25% CP or higher • Energy supplements usually have less than 15% CP • Calculate first limiting nutrient

  9. Late Gestation • CP supplied/CP required • 1.89 lb/2.0 lb = 0.95 or 95% • TDN supplied/TDN required • 13.5 lb/12.6 lb = 1.07 or 107% • First limiting nutrient is CP

  10. Late Gestation • CP needed = 0.11 lb • Corn gluten feed • 22% CP, 80% TDN • 0.11 lb/0.22 = 0.5 lb corn gluten feed

  11. Lactation – Superior • CP supplied/CP required • 1.89 lb/2.9 lb = 0.65 or 65% • TDN supplied/TDN required • 13.5 lb/15.7 lb = 0.86 or 86% • First limiting nutrient is CP

  12. Lactation – Superior • CP needed = 1.01 lb • Corn gluten feed • 22% CP, 80% TDN • 1.01 lb/0.22 = 4.6 lb corn gluten feed • 4.6 lb x 0.80 = 3.7 lb TDN added

More Related