|Jung, Hans Joachim|
Submitted to: Association Official Analytical Chemists Midwest Section Program Abstracts
Publication Type: Proceedings
Publication Acceptance Date: September 5, 1995
Publication Date: N/A
Technical Abstract: Analysis of forages for neutral and acid detergent fiber (NDF and ADF, respectively) concentration is important for nutritional characterization of forages fed to cattle and sheep. Data are presented which compare a new filter bag method for determination of detergent fiber components with the traditional method using crucibles. No significant differences in NDF or ADF concentration were detected between fiber estimates based on the filte bag method compared to the crucible method for 25 hay and 14 cornsilage samples. However, filter bag ADF values tended to be lower than traditional determinations. Variability between duplicate determinations by the filter bag method was low for ADF measurements on all samples and NDF determinations for the hays. However, cornsilage NDF measurements were more variable between duplicate samples. In vitro NDF digestibility measurements using the filter bags also were not different from a conventional test tube procedure.