Fatty Acid Review
Palmitic and Stearic Acids: Absorption and Digestion
Rumen microbes increase the amount of stearic acid that leaves the rumen and enters the small intestine for absorption. This article explores the biohydrogenation of unsaturated dietary fatty acids in the rumen and their absorption, showing that palmitic and stearic acid digestibilities are equal.
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Palmitic and Stearic Acids: Metabolism and Tissue Ulitization
The composition, metabolism and utilization of fatty acids in adipose, mammary and liver tissues are affected by dietary fat supplements. This article reviews the roles of dietary palmitic and stearic acids and their involvement in tissue metabolism.
Palmitic and Stearic Acids: Milk Fatty Acids
Feeding high levels of either Palmitic (C16:0) or Stearic (C18:0) acids affects milk fatty acid composition. Research trials are highlighted in this article that show the effects of high dietary levels of these fatty acids on milk yield and components.
Palmitic and Stearic Acids: Maintaining Milk Fluidity
The mammary gland is constantly combining milk fatty acids of different melting points to maintain the fluidity of milk within the gland. Obstacles posed by diets high in Palmitic Acid (C16:0) on the processes involved in maintaining milk fluidity are discussed in the article.
Palmitic and Stearic Acids: What Should the Composition of Your Inert Fat Supplement Be?
Trials that used a balanced approach to feeding supplemental Palmitic (C16:0) and Stearic (C18:0) Acids to lactating cows show improved milk yield, milk fat% and milk fat yield, This article compares the effects of feeding a high level of either fatty acid alone with the more sustainable effects of a balanced fatty acid approach.
Palmitic & Stearic Acids Video Series
Palmitic and stearic acids are the two major fatty acids provided in fat supplements for dairy cows. The Palmitic & Stearic Acid Video Series builds a solid foundation for understanding how these two important fatty acids are metabolized and how they affect milk fatty acids and energy balance in dairy cows.
Palmitic & Stearic Acids: Digestion (1 of 7)
This first video explains how rumen microbes alter the composition of fatty acids in the rumen through lipolysis and biohydrogenation of unsaturated dietary fatty acids, increasing the flow of stearic acid into the small intestine for absorption.
Palmitic & Stearic Acids: Absorption (2 of 7)
The digestive and absorptive systems of the cow have developed a way of solubilizing high levels of stearic acids into micelles. This second video looks at the processes involved in absorption of fatty acids from the small intestine of the cow.
Palmitic & Stearic Acids: Digestibility Values (3 of 7)
Early reseach did not account for biohydrogenation of unsaturated fatty acids in the rumen, leading to incorrect fatty acid digestibility values. This video shows how digestibility research clearly demonstrates that digestibility values of palmitic and stearic acid are the same.
Palmitic & Stearic Acids: Metabolism and Tissue Utilization (4 of 7)
The composition, metabolism and utilization of fatty acids in adipose, mammary and liver tissues are affected by dietary fat supplements. This video discusses how dietary palmitic and stearic acids are metabolized and utilized in these different body tissues.
Palmitic & Stearic Acids: Milk Fatty Acids (5 of 7)
Feeding high levels of either Palmitic (C16:0) or Stearic (C18:0) acids affects milk fatty acid composition. Research trials are highlighted in this video that show the effects of high dietary levels of these fatty acids on milk yield and components.
Palmitic & Stearic Acids: Milk Fluidity (6 of 7)
The mammary gland is constantly combining milk fatty acids of different melting points to maintain the fluidity of milk within the gland. Obstacles posed by diets high in Palmitic Acid (C16:0) on the processes involved in maintaining milk fluidity are discussed in the video.
Palmitic & Stearic Acids: What should your fat supplement look like? (7 of 7)
Trials that used a balanced approach to feeding supplemental Palmitic (C16:0) and Stearic (C18:0) Acids to lactating cows show improved milk yield, milk fat% and milk fat yield, This video compares the effects of feeding a high level of either fatty acid alone with the more sustainable effects of a balanced fatty acid approach.
Invited Review: Palmitic and stearic acid metabolism in lactating dairy cows. JDS-97-4661-4674
Stearic, palmitic acids in dairy cow nutrition (Chapter 1). Feedstuffs July 21, 2014
Stearic, palmitic acids affect milk composition (Chapter 2). Feedstuffs August 11, 2014
Heat Stress
Summer Heat Stress—Nutritional Strategies to Minimize the Effect
Potassium and It’s Benefits During Heat Stress and Milk Fat Depression
Heat Stress Video Series
Summer heat stress affects cows throughout the U.S., resulting in reduced feed intake, lower milk production, poor reproductive performance and excessive weight loss. This video explores the metabolic effects of heat stress and the role of supplemental fat and other nutritional strategies to minimize these negative effects.
The Importance of Potassium During Heat Stress
Feed "A Cool Fat to a Hot Cow!"
Dairy Fact Check
The Truth Through Science
Highly Enriched Palmitic Acid Supplements Decrease Body Condition in Early Lactation
Cows supplemented with highly enriched palmitic acid show signs of tissue breakdown and mobilization of body energy stores. Recent research shows that cows fed highly enriched palmitic acid in early lactation lost an additional 2.76 lbs of body weight each day compared to no-fat controls. Blood metabolites of supplemented cows were typical of animals in a “fasted” state which are mobilizing body fat reserves via lipolyis.
Ready for the Unintended Consequences of Feeding High Palmitic Acid Fat Supplements?
Loss of dry matter intake, no increase in milk yield and reduced body gain are the unintended consequences of feeding high palmitic acid fat supplements. A recent meta-analysis shows that while milk fat concentration and yield were improved, there was a distinct lack of milk yield response, a significant reduction in milk protein % and a 56% reduction in body weight gain compared to controls.These unintended consequences may have long term effects on health and reproduction.
The Nutritional Consultant’s Digest
Vol 37. What Should the Composition of Your Inert Fatty Acid Supplement Be?
Vol 36. Palmitic & Stearic Acids: Maintaining Milk Fluidity
Vol 35. Palmitic & Stearic Acids: Milk Fatty Acids
Vol 34. Palmitic & Stearic Acids: Metabolism and Tissue Utilization
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Vol 33. Palmitic & Stearic Acids: Digestion and Absorption
Vol 32. Potassium and It’s Benefits During Heat Stress and Milk Fat Depression
Vol 31. Summer Heat Stress -- Nutritional Strategies to Minimize the Effect
Vol 30. Energy Booster Mag
Vol 29. Energy Booster Select
Vol 28. Feeding High Levels of Linoleic Acid Depresses Intake and Milk Fat Production
Vol 26. Feed ||A Cool Fat to a Hot Cow!||
Vol 25. Invest in Your Cows' Energy Bank
Vol 24. Boost Peak Milk to Increase Total Milk
Vol 22. Return Cows to Positive Energy Balance Sooner!
Vol 21. Reproducing Great Body Condition
Vol 18. Got Milk Fat Depression? Get Solutions
Vol 17. Do Reproductive Fat Supplements Deliver?
Vol 15. Feed a Pound, Earn a Ton with High Forage Ration
Vol 14. Making Milk But Losing Body Condition? Is Your Fat Supplement to Blame?
Vol 13. Choose Fat Wisely for Optimum Nutrient Digestibility
Vol 12. New Research Confirms Calcium Soaps' Drawbacks
Vol 11. Is Your Fat Masquerading as a Rumen By-Pass Fat?
Vol 10. ||Conceptually|| Brighter Fertility by Feeding Transition Cows the Right Fatty Acids
Vol 8. Energy Booster 100 Adds Protein Value to Milk
Vol 7. High Producing Cows: FAQs for Feeding Fat
Vol 6. High Stearic Acid Fats May Reduce Fatty Liver Troubles
Vol 5. She's Carrying a Calf Sooner, Thanks to Fat
rates for all services. Research shows dietary fats, particularly digestible fats high in stearic acid, reduce body condition loss in early lactation, helping improve reproductive performance.
Vol 4. Digestibility: Setting the Story Straight on Stearic and Palmitic Fatty Acids
Vol 3. How to Give Ration Energy Density a Shot in the Arm Without Shooting DMI in the Foot
maintain or increase DMI.