Abstract
Summary Comparison of the parameters using for determination of metabolizable energy value of the roughages The objective of the present study was to define the correlation coeffecient (r) between dry matter digestibility (DMD), organic matter digestibility (OMD) and metabolizable energy (ME) values of roughages determined by in vivo classic digestion trials and various parameters determined by some in vitro techniques. With the finding obtained, it can be concluded that in the regression equations which is developed for estimating the ME values of roughages grown in Turkey, crude protein (CP) and ether extract (EE) in Weende analysis; neutral detergent fiber (NDF) or especially acid detergent fiber (ADF) in Van Soest analysis; enzyme soluble organic matter (ELOS) in Enzymatic method and 24 h gas production in Gas Production technique (HFT) should have a priority in use as reliable parameters.
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