Short-chain fatty acids (SCFAs), such as butyrate, produced by gut microorganisms, play a critical role in energy metabolism and physiology of ruminants as well as in human health. In this study, the temporal effect of elevated butyrate concentrations on the transcriptome of the rumen epithelium was quantified via serial biopsy sampling using RNA-seq technology. The mean number of genes transcr...

A L T H O U G H in vitro and in vivo rumen studies of cellulose digestion and volatile fatty acid production are numerous (Johnson, 1966), a paucity of information is available on the bioenergetics of tureen digestion. From four in vitro fermentations, in which the heat of combustion of substrate and the products was determined, Marston (1948) concluded that the heat of rumen fermentation of pu...

The effect of different feeding ratios of concentrate to roughage on ruminal lipid synthesis in vitro was examined. Three sheep fitted with a rumen fistula were fed three different ratios (8:2, 4:6 and 0:10) of concentrate and roughage, and their rumen liquor were used for incubation. C-labeled glucose or sodium acetate as substrate was added to cultures of rumen liquor, and they were incubated...

BACKGROUND In countries around the Baltic Sea grazing ruminants have access to and drink, surface water from lakes, rivers and in several coastal regions. The water quality of these naturally occurring reservoirs affects performance and health of livestock. In the Baltic Sea both microcystin (MC) and nodularin (NOD) occurs as cyclic peptides and have hepatotoxic effects. Although cattle obvious...

The objective of this study was to investigate the effects of diets containing different levels of milk thistle (0, 100 and 200 g/kg dry matter) and grains (barley and corn) with different rumen degradation rates on rumen bacteria and whole rumen microorganisms (WRM) of Khuzestan buffalo. The gas production (GP) technique, two steps digestion and specific bacteria culture medium methods were us...

Using 24 hours in vitro cultures of rumen microorganisms, this study investigates the effect of buffering capacity of 2 inorganic compounds (M1=119.43 and M2=116.50 meq/L) on the in vitro rumen acidogenic value (AV), medium pH, dry matter disappearance (INVDMD) and methane emission of lactating dairy cow diets containing various forage to concentrate ratios as 40:60 (FC40:60) and 30:70 (FC30:70...

The research featured the effect of a diet fortified with essential microelements on ruminal microbiota young rams. Ruminal is largely responsible for feed digestibility and body functioning cattle.
 study involved contents rumens jejuna seven-month-old rams Edilbaev breed, which were subjected to biofortified diet. included Russian additives Yoddar-Zn DAFS-25 represent protein-carbohydrat...