Transient feeding of a concentrate-rich diet increases the severity of SARA

By P. Pourazad, R. Khiaosa-ard, M. Qumar, S. U. Wetzels, F. Klevenhusen, B. U. Metzler-Zebeli, Q. Zebeli

Published on 01/02/2016

Transient feeding of a concentrate-rich diet increases the severity of subacute ruminal acidosis in dairy cattle

Journal of Animal Science, Volume 94, Issue 2, 1 February 2016, Pages 726–738, https://doi.org/10.2527/jas.2015-9605

An interesting study looking at the effect of feeding pattern on subacute ruminal acidosis (SARA) severity and rumen VFAGlossaryView allVolatile Fatty AcidGlossaryView allVolatile Fatty AcidGlossaryView allVolatile Fatty AcidGlossaryView allVolatile Fatty Acid (VFAGlossaryView allVolatile Fatty Acid (VFA)
The microbial ecosystem in the rumen ferments carbohydrates into VFAs. These products are absorbed though the rumen wall into the blood and used like energy source for the animal. The three main VFAs are acetic acid, butyric acid and propanoic acid.
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The microbial ecosystem in the rumen ferments carbohydrates into VFAs. These products are absorbed though the rumen wall into the blood and used like energy source for the animal. The three main VFAs are acetic acid, butyric acid and propanoic acid.
(VFAGlossaryView allVolatile Fatty Acid (VFA)
The microbial ecosystem in the rumen ferments carbohydrates into VFAs. These products are absorbed though the rumen wall into the blood and used like energy source for the animal. The three main VFAs are acetic acid, butyric acid and propanoic acid.
)

The microbial ecosystem in the rumen ferments carbohydrates into VFAs. These products are absorbed though the rumen wall into the blood and used like energy source for the animal. The three main VFAs are acetic acid, butyric acid and propanoic acid.
(VFAGlossaryView allVolatile Fatty Acid (VFA)
The microbial ecosystem in the rumen ferments carbohydrates into VFAs. These products are absorbed though the rumen wall into the blood and used like energy source for the animal. The three main VFAs are acetic acid, butyric acid and propanoic acid.
)

The microbial ecosystem in the rumen ferments carbohydrates into VFAs. These products are absorbed though the rumen wall into the blood and used like energy source for the animal. The three main VFAs are acetic acid, butyric acid and propanoic acid.
(VFA)

The microbial ecosystem in the rumen ferments carbohydrates into VFAs. These products are absorbed though the rumen wall into the blood and used like energy source for the animal. The three main VFAs are acetic acid, butyric acid and propanoic acid.
concentrations in dairy cows. The effects of transient (two SARA challenges separated by 7 days on forage diet)  and persistent (28 days) concentrate-rich diet (60% concentrate) were compared. Transient concentrate-rich diet led to a higher severity of SARA than the persistent diet, but factors beyond feed intake and VFA alterations seemed to also play a role.

 

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