Eleonora Nannoni, André J A Aarnink, Herman M Vermeer, Inonge Reimert, Michaela Fels, Marc B M Bracke
This is a comprehensive review on the pigs' normal eliminatory behaviour (i.e., defaecation and urination) and pen soiling. This review is aimed primarily at solving issues with pen soiling in current systems, and ultimately at the future design of a well-functioning pig toilet, which we intend to elaborate on in a subsequent publication. In this paper, first, normal elimination is described in relation to what is known about its phylogeny, ontogeny, causation, and function, i.e., according to Tinbergen's four why questions concerning animal behaviour...
November 3, 2020: Animals: An Open Access Journal From MDPI