I'm taking a transpacific trip and was wondering if cooked food is allowed to be packed in the carry-on bag for international travel. It may sound silly, but I have some salmon (about 1.5 lbs) that if I cannot take with me onto the flights I'd better throw them away since I'd be out for a month (don't want come home to spoiled fish).

If allowed to be packed in carry-on luggage, I can probably consume some on the long flights to Asia. Do I have to throw away the leftover salmon before entering customs of the destination country?