jQuery Grid Plugin - jqGrid

I have read through several posts looking for an answer and I can't seem to find one.  I have a grid where the select values in column one determine the select values that appear in column two.  I can change the values when editing (I use inline editing) but I can't figure out how to properly *populate* each row with the different select values as the grid is rendered.  For example, if the grid is:

Animal Type       Name

Cow                   <select values would be Jersey, Gurnsey, etc >

Bird                    <select values would be Swallow, Robin, Eagle, Seagull, etc >

Dog                   <select values would be Retriever, Hound, Mutt, etc >

How do I get different select lists each row of the same column?

Again, I know how to dynamically populate column two when column one changes but how do I put *different* select lists into each row of the *same* column as the grid is rendered?   Is there a row complete event that triggers as each row completes? Or, an alternative on how to properly populate the column with different select list?

Thanks,

Pete