Week 7
Dairy: Lactating Cows |
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Milk Components
Text Transcript
Follow along with the audio...
Milk Fat & Protein
|
Fat, % |
Protein, % |
Aryshire |
3.91 |
3.40 |
Brown Swiss |
4.03 |
3.57 |
Guernsey |
4.55 |
3.57 |
Holstein |
3.66 |
3.19 |
Jersey |
4.76 |
3.81 |
Milk Fat Sources
- 50% - Acetate and Butyrate
- 50% - Blood Lipids
Low Fat Test
- Energy Shortage
- 90-150 days Postpartum
- Thin cows
- 2.5 to 3.0% Milk Fat
- Milk protein also lower
- Ration unbalanced
- Milk Fat Depression
- Any stage of lactation
- Good cow condition
- 0.9 to 2.5% Milk Fat
- Milk protein higher
- Off-feed conditions
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