Protected proteins in ruminant nutrition. In vitro evaluation of casein derivatives
Friedman, M.; Broderick, G.A.
Advances in Experimental Medicine and Biology 86b: 545-558
1977
ISSN/ISBN: 0065-2598 PMID: 20754 Document Number: 118509
Chemical treatment of proteins in feeds can, by crosslinking protein chains or other chemical effects, decrease their solubility and microbial degradation in the rumen, and may have a beneficial effect on milk production. As a first step towards modifying proteins with inexpensive reagents, several derivatives of casein were treated at pH 9-10 with various acylating and alkylating reagents. Initial tests indicated that N-methylolacrylamide-modified casein was of possible commercial value if it can be shown to be nutritionally efficient and non-toxic.