What is the name for a Agricultural Inspector that inspects the livestock and their conditions?

What is the name for a Agricultural Inspector that inspects the livestock and their conditions? Not someone who inspects crops, or just meat, but rather who inspects the living conditions of the animals,their surroundings and the animals health. Who's focus is only on the animals themselves. They might inspect their blood, urine and food to determine if they are living in good conditions? Thanks so much!!!