this is a exerpt from State Of Alaska Fish & Game sight, wither its late Aug and Sept Alaska we have some pretty warm temps with insects, this is a short bit on game meat in field.
Basics of field care and keeping the meat cool, clean, and dry are emphasized. Meat can quickly spoil unless it is removed from the carcass and allowed to quickly cool - cooling the meat retards spoilage and results in great table fare.
Meat must also be kept clean, and leaves, grass, soil, hair and body fluids must be removed from the meat. This means taking your time during field dressing to pick off foreign matter. Heavy-duty game bags that protect the meat are essential to the field dressing process.
Once the meat is cool and clean, it must also be kept dry. Keeping meat dry on a float trip requires keeping the meat lightly covered in the raft and then hung each night so that it can remain dry. When hunting from a base camp, erect a tarp over the meat bags to protect it from rain or snow.
Insects are often a problem, particularly in the early caribou and moose seasons. According to Field Care, the best way to deal with pesky flies is to spray the meat with a citric acid solution. Food grade citric acid is readily available at pharmacies and feed stores. A protective film is formed on the meat when citric acid is mixed with water and sprayed on the meat. Apparently flies don't like to lay their eggs on the acidic surface. Another excellent tip is to soak the meat bags in the citric acid solution and let them dry before the hunting trip. Even though the solution has dried it remains effective.
Ive seen meat come from the tundra thatd been meat bagged for 3-4 days with ill effects, the outter meat forms a dry shell thtas easily fillet later at processing, Ive received donated meat while at work (trophy hunters cannot freight back a whole moose from Arctic Alaska to St Louis)that meat will keep another day or set your freezer at its warmest setting and throw the quarters,ribs, and other parts in freezer whole, till you get home from work then pull out the semi slushey parts for processing.
These Dvd's sell for $5 ea
FNH-01289 Processing Game Meat
This DVD offers information on the slaughter and processing of reindeer, lessons that are applicable to moose, caribou and other large game. Sections cover the slaughter and skinning of reindeer, processing and wrapping reindeer meat and removing the leggings for handicrafts. The DVD is aimed at hunters and home processors.