Is proteolysis in the rumen of grazing animals mediated by plant enzymes?

@article{Theodorou1996IsPI,
  title={Is proteolysis in the rumen of grazing animals mediated by plant enzymes?},
  author={Michael K. Theodorou and Roger J. Merry and Helmut Thomas},
  journal={The British journal of nutrition},
  year={1996},
  volume={75 3},
  pages={507-8}
}