I think the important question is why do you want to bring meat? To save money? To bring better quality? Bring meat that isn't available? If it is only to save money, then I'd consider whether or not you will truly be saving if something goes wrong and it spoils.. Just something to consider. If it was just one day of travel I wouldn't see it as a problem - just more of a risk with such a long time between departing and getting on the boat.