“…The antigen KLH has been used frequently as a model antigen for general assessment of NAb titers within various species including pigs (Reimert et al, 2014), cattle (van Knegsel et al, 2007;van Knegsel et al, 2012), and chicken Star et al, 2007). Chondroitin sulfate A is a component of proteoglycans which is a major component of growth cartilage (Byers et al, 1992;Mourao, 1988;Cortes et al, 2009; and reviewed by Greenwald et al, 1978;Roughley, 2006;Kheir and Shaw, 2009). Actin and myosin are components of the cellular cytoskeleton including chondrocytes (Hale et al, 1983;Durrant et al, 1999;Knight et al, 2006;Sanz-Ramos et al, 2012;Sauter et al, 2012).…”