Noah, I actually read an article about that in one of those Boar Hunter magazines. I was at a show and they were giving them away so I took one to have something to read at the show. i will see if I can dig it up and give you the issue.
Here it is, I put my hands right on it. It was the July/August 2008 issue. Research was done in the UK, drug is called GonaCon. They vaccinated 6 sows in 2004 and even being exposed to boars all were still infertile in 2006. Now they are working on a bait to deliver this to the hogs in the wild.....not good for us hog hunters.
They are also working on a TOXIC bait called 1080 which is highly specific to hogs, but it kills them .......maybe we should get something like this developed for politicans......
