Which of these jobs would you choose?

Hey man you've got the information super-highway at your fingertips, a little basic research on google and you could of quickly answered this yourself.

Researchers need animal sperm for their studies, and that stuff’s got to come out of the barnyard creatures somehow. The animal masturbator is the guy responsible for getting the job done, whether by shoving an electric probe up the animal’s backside, holding an artificial vagina up to the creature’s penis, or rolling up the sleeves and doing it the manual way.

They might want to study fertility or artificial insemination. Horse semen is also gathered for insemination purposes in the horse racing industry.

The researchers are not the topic of discussion, but the person who has to get that sperm is surely to be pitied. There are two ways to get an animal to ejaculate without the help of its female partner.
Electroejaculation generally requires anesthetizing the animal and is typically used on zoo dwellers. The other two methods-the artificial vagina, or AV, and the good old hand-require that animals be trained to the procedure. The AV-a large latex tube coated with warm lubricant -is used primarily to get sperm from dairy bulls. The bull gets randy with a steer; when he mounts the steer with his forelegs, a brave technician, AV in hand, insinuates himself between the two aroused beasts and deftly redirects the bull’s penis into the mock genitalia, which he must then hold tight while the bull orgasms.

Three additional technicians attempt to ensure the technicians safety by anchoring themselves to restraining ropes attached to a ring in the bull’s nose. This isn’t always absolutely effective: Everyone who’s wielded an AV has had at least one close call, and more than a few have been sent to the hospital. The much safer “digital pressure” is used mostly with pigs, who are trained from an early age to mount a small bench while the researcher reaches around with a gloved hand and provides appropriate pressure.
Here are a few links I've found if you require further validation.

<a href="http://www.youtube.com/watch?v=bj4MQd3hStc" rel="nofollow">http://www.youtube.com/watch?v=bj4MQd3hStc</a>

<a href="http://whyiwouldntwantyourjob.blogspot.com.au/2012/09/a-day-in-life-of-animal-masturbator.html" rel="nofollow">http://whyiwouldntwantyourjob.blogspot.com.au/2...</a>

<a href="http://www.youtube.com/watch?v=kTAz1Tj1zQc" rel="nofollow">http://www.youtube.com/watch?v=kTAz1Tj1zQc</a>

They have animal brothels in Germany.

And yes they're crappy jobs its the point of the poll, finding the "least worst of."