Compound 1080 and "M44s" are war time chemicals still in function today to "control predation of livestock". Products are often tested on dogs to diagnose how long it takes for the animal to die. No treatment is readily available and proven to work. These compounds are banned in some countries, as 1080 is tasteless, odorless, and takes a very minute amount to cause death.
Compound 1080: Sodium Fluoroacetate -depression of central nervous system, cardiac failure, severe convulsions. respiratory arrest, and death within 4 hours or more. Animals display bizarre behavior before death.
Cyanide (used in M44s)--Usually hidden within pipes wrapped with a canine attracting scent as a spring trap, once the animal tugs, it is released into the mouth and absorbed there or the stomach. Coma and Death can occur in minutes due to respiratory arrest/ the inability to use oxygen. Laboratory studies have found some treatments effective-but are not readily available to the public. It is naturally occurring (ex: Apricot pits), and has been used by some physicians for cancer treatments and hypertension in monitored amounts. Non-lethal doses are usually tolerated by most animals.
Here is an interesting reading on Cyanide all around, and some of the info I posted can be credited to it :http://www.pwrc.usgs.gov/infobase/eisler/chr_23_cyanide.pdf
**I believe regulated hunting is the best option in any case of controlling a population from starvation or livestock predation. You get meat in the freezer, a pelt, and even the bones-without putting extremely toxic chemicals into the environment that is harmful to any and all-people, pets, and non target animals such as birds, big cats, and deer. 1080 will infect an area for years, and may never return to it's healthy state. All in all-much more responsible and safe for everyone.
art (c) Tatchit