Our discussion of the three little sample arguments from day 1 is found in this paper:
"Rational Engagement, Emotional Response and the Prospects for Progress in Animal Use 'Debates'" (in WORD) for Jeremy Garrett, ed., Animal Research in Theory and Practice (MIT Basic Bioethics Series. 2009). [Final version , shortened a bit]. Here's a draft of an APPENDIX that addresses more arguments.
The moral theory building exercise is discussed here, as are other intro to ethics matters: