LIST OF FIGURES Figure page 2-1. Effect of IGF-1 on the relative abundance of developmentally-important gene transcripts in grade 1 expanded blastocysts harvested on d 7 after insemination. ...........59 3-1. Relationship between embryo length and IFN-T secretion. .............................................79 3-2. Relationship between embryo length and IFN-T secretion............ ......... ...............80 4-1. Daily maximal dry bulb temperatures and daily relative humidity from March 15, 2005 to February 9th, 2006 ......... ................. ......................................... ............... 103 5-1. Summary of the effects of IGF-1 on embryo development and post-transfer survival... 117