Dear Vet-shabana,
I am not quite sure what "Supervisor" means but i presume you are the leader of the QC section since it appears that you are expected by management to set the complete system up (almost single-handed?

) ?
Clearly, yr priorities will be somewhat defined by any standard you are immediately required to certify to but this aspect seems currently undetermined in yr case so i hv just considered a general situation.
The ideas below will inevitably run in parallel but they represent some priorities IMO. other people may hv different methods of course. I hv excluded any items like internal lab. functions since i assume you will outsource such things.
(1) IMEX, With respect to the products range handled ,the most immediate commercial driven requirement given to the QA section will be to compile product specifications since without these nothing can be purchased

. This inevitably draws in all the associated quality / safety factors for which i guess yr experience has already provided a good knowledge base. It will also necessitate producing suitable documentation for any monitoring / records purposes.
(2) A second priority will probably be to set up a system for supplier evaluation using the technical base of (1).
You might say that (1) and (2) generate the purchasing function from a QA perspective.
(3) Set up the system for maintaining the quality / safety control when receiving / (processing?) / storing products within yr premises.
I think you will see that the concepts above are, not surprisingly, analogous to the sectional approach presented within ISO 9001. In fact the various segments of this standard nicely illustrate the building blocks IMO. ISO 22000 amplifies 9001 by orienting it towards safety as you know. Excepting for topics like oprp, a basic
haccp system should cope with yr initial practical safety requirements IMO.
I'm not sure how much technical backup you hv available but this seems a very sizeable undertaking to me. I hope you are being suitably remunerated for it

.
Best of Luck,
Rgds / Charles.C