1. Stability of methionine hydroxy analog in rumen fluid and its conversion in vitro to methionine by calf liver and kidney;Belasco;J. Dairy Sci.,1972
2. Burroughs, W., and A. Trenkle. 1969. Initial experiment with methionine hydroxy analog – calcium added to an all-urea supplement for finishing heifer calves. Iowa State Univ. A.S. Leaflet R-122.
3. Burroughs, W., and A. Trenkle. 1969. Progress report. Different levels of methionine hydroxy analog – calcium added to all urea vs. all plant protein supplement for finishing lambs and yearling steers. Iowa State Univ. A.S. Leaflet R-128.
4. Nitrogen metabolism in the ruminant;Buttery,1976
5. Preliminary investigations of some potential source of protected methionine derivatives for ruminant rations;Buttery;J. Sci. Food Agric.,1977