1. Cattle Nutrition Extension Veterinary Medicine
Texas AgriLife Extension Service
College of Veterinary Medicine and Biomedical Science
Texas A&M System

2. Hay/Grass Normal Diet Protein and Energy
Normal Digestion - Bulk, Long Fiber
Microbes - Rumen
Motility - Rumen
Chewing - Saliva, Satisfaction
Chewing Cud
Appetite

3. Protein Supplements Increase Roughage Intake
Nitrogen Increases Microbes

4. April - August (5 Mos) – Summer Pastures
September - March (7 mos) – Winter Pastures, Hay, Supplements

5. “I feed my cattle all the hay they want - all they can eat.”
Chase Truck
Catch Cubes in Air

7. Plenty/Good Hay Plenty/Poor Hay Protein/Energy Provided Protein Def.
Protein Suppl. (Increases appetite for hay)
Not eating enough poor hay - leads to energy def.

8. Short/Good Hay Short/Poor Hay Energy Def. Energy Suppl.
Protein/Energy Def.
Protein/Energy Suppl.

9. Feeding Hay/Supplements
Hay/Protein Suppl. (CS Meal, 40% Cubes, Syrup, Blocks, Broiler Litter)
Hay/Energy Suppl. (Grain)
Hay/Protein/Energy Suppl. (Whole CS, Range Meal, 20% Cubes, Broiler Litter + Grain)

10. Too late in feeding supplements
Lose wt., lose cud
Thin, bottle jaw
Weak, abortion, downer
Black stacked manure, profuse diarrhea

11. Won’t eat hay - Protein def.
Won’t eat protein suppl.
Will eat grain
Need amino acids oral/IV

12. Won’t eat grain - Energy def.
Will eat hay, protein suppl.
Need glucose IV