Short communication: behavioral and physiological indicators of sensitivity or chronic pain following tail docking.
Eicher SD, Cheng HW, Sorrells AD, Schutz MM, J Dairy Sci, 2006 Aug - link

Indicators of acute pain and fly avoidance behaviors in Holstein calves following tail-docking.
Eicher SD, Dalley JW, J Dairy Sci, 2002 Nov - link

Tail-docking alters fly numbers, fly-avoidance behaviors, and cleanliness, but not physiological measures.
Eicher SD, Morrow-Tesch JL, Albright JL, Williams RE, J Dairy Sci, 2001 Aug - link

Tail-docking influences on behavioral, immunological, and endocrine responses in dairy heifers.
Eicher SD, Morrow-Tesch JL, Albright JL, Dailey JW, Young CR, Stanker LH, J Dairy Sci, 2000 Jul - link