Lee, J. T.; Bailey, C. A.; Cartwright, A. L. In Vitro Viscosity As a Function of Guar Meal and &Szlig;-Mannanase Content of Feeds. Int. J. Poult. Sci. 2009, 8 (8), 715–719. https://doi.org/10.3923/ijps.2009.715.719.