Determination of crude protein in animal feeds, using block digestion followed by steam distillation: collaborative study
Noel, R.J.
Journal - Association of Official Analytical Chemists 62(2): 290-291
1979
ISSN/ISBN: 0004-5756 PMID: 447601 Document Number: 151532
A method consisting of digesting animal feeds in a block digestor and determining ammonia by steam distillation followed by titration has been evaluated and compared with the official final action Kjeldahl method, 7.016. Fifteen laboratories analyzed 5 feed samples and lysine monohydrochloride. Statistical analysis showed that results from the 2 methods were comparable. The distillation technique has been adopted as official first action as an alternative technique for ammonia determination from the digest of the official final action block digestor method, 7.B11.