“…In chemosensory systems, lectin histochemistry has commonly been utilized to discriminate terminal carbohydrate residues (Salazar et al, 2001). The carbohydrate (lectin-binding) moiety is expressed in the VNOs of various mammals, including rats (Mendoza and Kuhnel, 1991), mice (Barrios et al, 2014), rabbits (Villamayor et al, 2018), foxes (Ortiz-Leal et al, 2020), marmosets (Nakajima et al, 1998), goats (Yang et al, 2021), pigs (Salazar et al, 2004;Park et al, 2012), sheep (Ibrahim et al, 2014), roe deer (Park et al, 2014), and horses (Lee et al, 2016). However, little is known about the expression of PGP9.5, OMP, and diverse lectin-binding carbohydrates in various cell types and structures in the VNO of cattle even though the morphological features of the cattle VNO are well-characterized (Taniguchi and Mikami, 1985;Adams, 1986;Salazar et al, 1995;Salazar et al, 1997;Salazar et al, 2008).…”