Vitamins – Ruminal Degradation 75 – 98.5%...Would You Believe It! MUMBAI, Sep 2016.
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Vitamins – We Will Learn About…
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Vitamins – Types & Functions
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Out of 14 Known
Vitamins – Vit. A, D3 &
Vit. E Have ABSOLUTE
DIETARY
REQUIREMENTS in
CATTLE
Vitamin A – Ruminal Destruction; Source – DSM Website
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Source: DSM WEBSITE
www.dsm.com
Vitamin A – Ruminal Destruction; Source – NRC 2001
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Source:
NRC 2001
7th Ed.
(Chapter 7;
Page – 184)
Vitamin E – Ruminal Destruction; Source – DSM Website
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Source: DSM WEBSITE
www.dsm.com
Vitamin E – Ruminal Destruction; Source – NRC 2001
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Summary: Up to 75% destruction of Vit. E in Rumen
Sources:
1. NRC 2001
2. Weiss et al. 1995
3. DSM Website (www.dsm.com)
Source:
NRC 2001
7th Ed.
(Chapter 7;
Page – 187)
Vitamin E – Absorption; Source – DSM Website
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Source: DSM WEBSITE
www.dsm.com
Water Soluble Vitamins – Ruminal Degradation Summary!
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Fat Soluble Vitamins – Ruminal Degradation Summary!
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Vitamin Ruminal Degradation
Vitamin A 60 -80%
Vitamin D 60 – 70%
Vitamin E ~ 75%
Sources:
1. NRC 2001
2. DSM Website (www.dsm.com)
3. Weiss et al. 1995
Fat Soluble Vitamins – Factors Affecting Stability!
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Moisture, light, oxygen, acidity, abrasion, fat rancidity, carrier, enzymes and
medications affect vitamin stability in premixes and complete feeds.
Vitamins are organic compounds sensitive to a myriad of physical and chemical reactions
that affect their potency. For example, vitamin A has five double bonds highly susceptible to
oxidation, whereas vitamin E is a natural antioxidant rapidly consumed without its own
protection. During feed manufacturing and storage, oxidative conditions often arise that may
reduce vitamin stability. Unless vitamin destruction is prevented or compensated, animal
performance may be reduced depending on severity and duration of imposed vitamin
deficiency
An est. ~ 5 -6%
Storage losses
with Non-
encapsulated
Vitamins All About Feed
May 2016 Issue
Vitamin AD3E – Requirements; Source: NRC 2001
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Vitamin NRC
Recommendation
Total Requirement for a
600 Kg BW Animal
Vitamin A 110 IU / Kg BW 66,000 IU
Vitamin D 30 IU / Kg BW 18,000 IU
Vitamin E 0.5 – 0.8 IU / Kg BW 100 - 500 IU
Note:
These requirements are TOTAL requirements from all sources: Feed + Supplementation
Source: NRC 2001
Vitamin AD3E – Recommedations; Source: DSM Vit Supp Guidelines
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Vitamin AD3E – Requirements; Source: NRC 2001
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Vitamin NRC
Recommendation
Total Requirement for a
600 Kg BW Animal
Vitamin A 110 IU / Kg BW 66,000 IU
Vitamin D 30 IU / Kg BW 18,000 IU
Vitamin E 0.5 – 0.8 IU / Kg BW 300 - 500 IU
Note:
These requirements are TOTAL requirements from all sources: Feed + Supplementation
Source: NRC 2001 When in Doubt…Follow NRC 2001
REQUIREMENTS and NOT any company
Recommendations