3.3

Estimation of dry matter intake for various breeds/ age categories of dairy cattle in the tropics

Level 3 - Extension Workers, Input & Service Providers

Introduction

1. You will learn about...

2. Background

3. Dry matter intake (DMI)

4. Dry matter intake(DMI) cont'd...

5. Components of Dry matter

6. Relation between rumen fill and DMI

7. Dry matter (DM) contents fed to cows

8. Calculating Dry Matter Intake

9. Calculating Dry Matter Intake Cont'd...

10. Dry Matter content in different feeds & forage

11. Example of DMI calculation

12. Estimate dairy DMI of feed (kg)

13. Estimate daily DMI of feed (kg) cont'd...

14. Factors affecting Dry matter intake in cows

15. Factors affecting DMI of the cows cont'd...

16. Different DM requirements for various breeds of cows

17. Different DM requirements for various breeds of cows Cont'd: Friesian breed

18. Different DM requirements for various breeds of cows Cont'd: Jersey breed

19. How Neutral detergent fibre (NDF) affects DMI

20. How Neutral detergent fibre (NDF) affects DMI cont'd...

21. Using Neutral Detergent Fibre (NDF) to predict DMI

22. Using NDF to predict DMI Cont'd...

23. Age factor in estimation of DMI

24. Age factor in estimation of DMI Cont'd...

25. Stage of lactation and level of milk production in DMI

26. Health of the cow in determining DMI

27. Feeds & farm management factors affecting DMI

28. Feeds & farm management factors affecting DMI Cont'd...

29. Other environmental factors affecting DMI

30. Water intake affecting DMI

31. Importance of meeting the cow's DMI requirement

32. Take home messages: Summary