Absorption of volatile fatty acids from the rumen of lactating dairy cows as influenced by volatile fatty acid concentration, pH and rumen liquid volume
نویسندگان
چکیده
منابع مشابه
Absorption 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 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 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 کاملRates of production of individual volatile fatty acids in the rumen of lactating cows.
The rumen fermentation rates in individual lactating cows were measured in four different experiments. The results disclosed that the amounts and proportions of volatile acids formed could vary widely. In one case, a marked difference in the proportions of the acids produced arose within the experiment and correlated with a difference in the proportion of methane formed. The average rate of pro...
متن کاملVolatile fatty acids and lactic acid in the rumen of dairy cows receiving a variety of diets.
Moore, J. H. & Tyler, C. (1955a). Bn't. J. Nutr. 9, 63. Moore, J. H. & Tyler, C. (19556). Brit. J. Nutr. 9, 81. Moore, J. H. & Tyler, C. ( 1 9 5 5 ~ ) . Brit. J. Nutr. 9, 389. Mueller, W. J. (1956). J. Nutr. 58, 29. Pigden, W. J. & Brisson, G. J. (1956). Canad. J. agric. Sci. 36, 146. Raymond, W. F. & Minson, D. J. (1955). J. Brit. Grassl. SOC. 10, 282. Schneider, W. (1955). 2. Tierernahr. 10, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: British Journal of Nutrition
سال: 1993
ISSN: 0007-1145,1475-2662
DOI: 10.1079/bjn19930041