Volatile Fatty Acids in the Rumen of the Sheep
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چکیده
منابع مشابه
Volatile Fatty Acid Production in the Rumen of Sheep
It is not known whether the concentrations of volatile fatty acids (VFA) in the rumen are simply related to their rates of production. A technique which uses a continuous intraruminal infusion of carbon-14 labelled organic acid [14C] has been developed and permits the measurement of the rate of production of a single acid (acetic, propionic or butyric acid) at one time (Leng and Leonard 1965). ...
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Interconversions and production of volatile fatty acids in the sheep rumen.
1. Sheep fed at a constant rate were infused intraruminally with [1-(14)C]-acetate, -propionate or -butyrate during 5hr. periods. 2. Volatile fatty acids were estimated in the rumen contents and steady-state conditions were obtained. 3. Of the butyric acid carbon 60% was in equilibrium with 20% of the acetic acid carbon, and 2-3g.atoms of carbon were interconverted/day. 4. Little interconversio...
متن کاملThe absorption of volatile fatty acids from the rumen.
The fermentation of carbohydrates in the rumen of sheep is known to lead to the formation of large amounts of the lower fatty acids. The important part that these acids assume in the metabolism of ruminants has been remarked upon (Marston, 1939, 1946). While it is believed that acetic, propionic and butyric acids are the main fatty acid products of the fermentation, there is no certain knowledg...
متن کاملFermentation in the Rumen of the Sheep Iv. the Nature and Origin of the Volatile Fatty Acids in the Rumen of the Sheep
Early workers in the field of ruminant physiology were aware of the presence of formic, acetic, propionic and butyric acids (Tappeiner, 1884), and of smaller amounts of higher members of the saturated fatty acid series (Mangold, 1934), in the rumen fluid. Accurate data were not reported, however, until recently, when partition chromatography became available as an analytical procedure for the a...
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ژورنال
عنوان ژورنال: Nature
سال: 1951
ISSN: 0028-0836,1476-4687
DOI: 10.1038/167954a0