The batch code is listed separately. I've got the 07 despatch docket from LIC in front of me, not sure where the 08 one is, but the information for those bulls was written in the mating detail book.
As far as I know that's a standard bull code - 7 denotes breed, 05 year and 179 is the bull's individual assigned number. In this case the '7' might simply mean beef for all I know, I'd be surprised if all the breeds were delineated that way.
Ack, I just checked the Alpha nominated catalogue. The various beef sires begin 5 6 or 7, but Kiwicross and Ayrshire are also coded that way.