I would like to investigate the physical properties of digesta in finishing pigs so that the most accurate descriptors of performance can be identified.
good option is to measure digesta viscosity like in poultry, even though viscosity has less impact on nutrient absorption in pigs, still it changes due to carbohydrate composition, particle size, polymerization etc. Moreover it is also easy to show post mortem changes just placing digesta in scaled cylinder measuring water and solid fraction.