What is the name of this job? 10 points to the best answer?

hi, i want to be a person who goes to farms and slaughter houses and other faculties like that and do inspections on the live livestock. I could possibly take samples of the livestock's blood, the water they drink, soil etc. And to see if they are in good condition. And if they aren't in good condition or are being treated poorly(not given enough food, given too much, given things that they aren't supposed to have etc) i would give the people time to clea up and then if they don't, i could take the livestock away or shut down their faculty with legal action. Do you know the name of this job. I am wondering if it falls under the agricultural inspection category but the job description says with crops etc. I am wondering if there is an inspector that only inspects the LIVESTOCK'S health and welfare and living conditions. Thanks