Some observations on volatile fatty acids in the sheep's rumen
نویسندگان
چکیده
منابع مشابه
The 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 کاملThe influence of rumen volatile fatty acids on protein metabolism in growing lambs.
The effect of acetic or propionic acid rumen fermentation patterns on whole-body protein turnover, tissue protein synthetic rates and body composition was investigated in growing lambs. Protein turnover was assessed using a continuous intravenous infusion of [2,3-3H]tyrosine and tissue protein fractional synthetic rates (FSR) from the specific activities of plasma free, intracellular free and t...
متن کاملTHE ABSORPTION OF VOLATILE FATTY ACIDS FROM THE RUMEN II. THE INFLUENCE OF pH ON ABSORPTION
In a previous paper the relative rates of absorption of acetic acid and propionic acid through the rumen wall were discussed (Gray, 1947a). While the manuscript was being prepared, Danielli, Hitchcock, Marshall & Phillipson (1945) described a series of experiments from which it was evident that the lower homologues of the fatty acids are absorbed through the rumen wall at different rates when t...
متن کاملAbsorption of volatile fatty acids from the rumen of lactating dairy cows as influenced by volatile fatty acid concentration, pH and rumen liquid volume.
The effect of rumen liquid volume, pH and concentration of volatile fatty acids (VFA) on the rates of absorption of acetic, propionic and butyric acids from the rumen was examined in lactating dairy cows. Experimental solutions introduced into the emptied, washed rumen comprised two different volumes (10 or 30 l), four levels of pH (4.5, 5.4, 6.3, 7.2) and three levels of individual VFA concent...
متن کاملOptimisation of the Gc Method for Assessing Volatile Fatty Acids in Rumen Liquid
Accurate determination of the volatile fatty acids (VFA) content of the rumen liquid is indispensable for assessing feedstuffs utilization and effects at ruminal level. Moreover, nowadays feeding strategies require more detailed information such as post-prandial dynamics of VFAs, content of minor VFAs, etc. which leads to the need for precise, rapid and economic determination. In this context, ...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1954
ISSN: 0306-3283
DOI: 10.1042/bj0570400