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Production and absorption of volatile fatty acids in the rumen
Livestock Production Science, 1994Abstract Volatile fatty acids (VFA), produced by fermentation of organic matter in the rumen, can have a major effect on production and product composition in ruminants. The relative proportions in which VFA are produced, are influenced by a number of factors, including substrate composition, substrate availability and rate of depolymerization, and ...
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Pseudo catalytic transformation of volatile fatty acids into fatty acid methyl esters
Bioresource Technology, 2016Instead of anaerobic digestion of biodegradable wastes for producing methane, this work introduced the transformation of acidogenesis products (VFAs) into fatty acid methyl esters (FAMEs) to validate the feasible production of short-chained fatty alcohols via hydrogenation of FAMEs.
Jong-Min, Jung +3 more
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The Journal of Nutrition, 1983
A study was conducted to determine effects of monensin supplementation on production and interconversion rates of rumen acetate, propionate, and butyrate and plasma acetate. Measurements were made by isotope dilution techniques in four Holstein steers fed a 70% alfalfa hay, 30% corn ration.
L E, Armentano, J W, Young
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A study was conducted to determine effects of monensin supplementation on production and interconversion rates of rumen acetate, propionate, and butyrate and plasma acetate. Measurements were made by isotope dilution techniques in four Holstein steers fed a 70% alfalfa hay, 30% corn ration.
L E, Armentano, J W, Young
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Australian Journal of Agricultural Research, 1965
(1) The production of acetic, propionic, and butyric acids was measured in an artificial rumen of the dialysing type: (a) by direct analysis, and (b) by the isotope dilution technique with 14C-labelled fatty acids. Estimates of production by the latter method agreed closely with the direct measurements when due allowance was made for small losses of ...
FV Gray, RA Weller, GG Jones
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(1) The production of acetic, propionic, and butyric acids was measured in an artificial rumen of the dialysing type: (a) by direct analysis, and (b) by the isotope dilution technique with 14C-labelled fatty acids. Estimates of production by the latter method agreed closely with the direct measurements when due allowance was made for small losses of ...
FV Gray, RA Weller, GG Jones
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Origins of the Volatile Fatty Acids in the Rumen
Nature, 1952MEMBERS of the saturated fatty acid series C1–C7 are formed during the fermentation of wheaten hay or lucerne hay in the rumen of the sheep1,2, and these acids, together with the methane and carbon dioxide also produced, account for a large part of the carbon of the digestible fraction of the fodder.
F. V. GRAY, A. F. PILGRIM
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VOLATILE FATTY ACIDS AND FATTY ACID COMPOSITION OF SILAGE SPECIES
2015In this study, total fatty acid composition and volatile fatty acid of silage species in Turkey was determined by using Gas Chromatography (Shimadzu 15-A). Total lipids were extracted from the corn silage, alfalfa silage and figure silage samples by the method of Folch et al. Silage species were a total of 15 different fatty acids.
Çitil, O. Barış +4 more
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The Analysis of Mixtures of Volatile Fatty Acids
Journal of Experimental Biology, 1947ABSTRACT In the course of investigating certain aspects of carbohydrate fermentation in the rumen of the sheep it became necessary to estimate the individual concentrations of formic, acetic, propionic and butyric acids in aqueous solutions containing all four components.
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