Yes. Antibiotics are mainly put in baby animal feed. Baby animals like chicks and calves have medicated feed, but you can choose un-medicated feed if you like.
Ionophores are a form of antibiotic that are added to the feed of feedlot cattle. They act to reduce the incidence of bloat and to increase feed efficiency by changing microflora dynamics. Doing so gets the rumen microbe community to produce less methane--a gas wasted via eructation--and more propionate, which can be more readily used by the animal. Ionophores are also used to reduce incidences of coccidiosis in cattle.
Antibiotics, in sub-therapeutic levels, are also given to dairy cattle, pigs and poultry to promote growth and feed efficiency. Note these feed additives are not given at the same levels, and are very often different from the antibiotics needed to be administered to animals with bacterial infections.
Antibiotics are usually given to someone who is sick with an infection. There are many types of antibiotics.
antibiotics are given because they help fight diseases
only when they are sick
Certain Death
What kind of antibiotics are you referring to? There are many types of antibiotics that are out there for different diseases, so there isn't just one general type to give to a bovine. Also, antibiotics should be given to cattle only when they need them, like if they have an infection of some sort.
Cattle gather in herds.
Majority of antibiotics used in beef cattle are at so low levels they are no threat to human consumption. Many of the antibiotics used in cattle aren't even used by humans anyway. Producers make sure they follow the withdrawal periods of antibiotics before slaughtering an animal. So to answer the question, they may, but not in levels that should be of any concern to your health.
Who says we don't? Of course we do, we use antibiotics almost as much and for the same reasons as our neighbors to the south of us do, except that we don't feed antibiotics to our dairy cows. With beefers, antibiotics are, just like our southerly neighbors, used to treat sick animals or as a means to increase feed efficiency and average daily gain in our feedlot cattle.
If a microbe is not affected by antibiotics, it is said to be resistant to the antibiotic.
bovine
Heifer.
No. Antibiotics are given to them only when they are ill with a bacterial or viral infection. Cows have antibodies and immunoglobins, but not antibiotics.