Take Heart!
From Christian Vegetarian Association (CVA)

Antibiotics before Birth

It turns out that the animal agriculture industry is able to find loopholes allowing them to use antibiotics in animals raised for food where people less suspect it, even in organic-raised animals. For example, hatcheries that produce chickens for organic farms administer the antibiotic gentamicine to these chickens while still in the eggs because organic standards start applying on the 2nd day of life for chicks.

The animal-based agriculture industry is very deceiving and finds ways to raise God's animals for food in very intensive ways that rely on antibiotics, which in turn promote antibiotic-resistant bacteria. We are all better off allowing all creatures to live peaceful and joyful lives, because when we don't we are harming them as well as harming us.

Read more at Animal Issues