Which beta-agonist is a beta-2 agonist that is only approved for use in beef feedlot cattle?

In what species? There are two beta-agonists compounds approved by the FDA for use in food animal species in the United States —ractopamine hydrochloride and zilpaterol hydrochloride. Ractopamine is approved for use in swine, turkeys and cattle, while zilpaterol is only approved for use in cattle [1, 3].

What are beta agonists used for?

Beta-2 adrenergic agonists are a drug class used as a mainstay treatment for respiratory diseases such as bronchial asthma and chronic obstructive pulmonary disease (COPD).

What are Beta-2 agonists examples?

Examples of these short-acting medications include: albuterol (AccuNeb, Proventil HFA, ProAir HFA, Ventolin HFA) and levalbuterol (Xopenex, Xopenex HFA). Long-acting beta-agonists (LABAs) are taken on a daily basis to relax the muscles lining the airways that carry air to the lungs.

What do beta agonists do in cattle?

Beta-agonists are a class of non-hormonal compounds fed to cattle. Their mode of action is to bind to receptors on fat cells in the animals’ body and redirect and reduce the metabolism of fat.

Is ractopamine a beta agonist?

Zilpaterol hydrochloride and ractopamine are β-adrenergic agonists that are feed to beef cattle (and pigs) at specific dosing regimens to improve weight gain, feed efficiency, and reduce carcass fat (Centner et al., 2014).

Which drug is a beta agonist?

Examples of beta-2 agonists include albuterol (Ventolin, Proventil), metaproterenol (Alupent), pirbuterol (Maxair), terbutaline (Brethaire), isoetharine (Bronkosol), and Levalbuterol (Xopenex).

What is a B agonist approved in hogs?

The beta agonists used in livestock production are ractopamine and zilpaterol hydrochloride. The FDA Center for Veterinary Medicine has approved ractopamine for use in swine and cattle.

Why is US pork banned in Europe?

Ractopamine has not been allowed in the European Union, based on the 2009 EU’s Food Safety Authority’s opinion on its safety evaluation, which concluded that available data were insufficient to derive a maximum residue limit as a ‘safe residue level for human consumption’.

How much meat can you produce with beta agonists?

Market analysis reports indicate that the use of beta-agonists account for up to a 1.5-2% increase in meat production; which equates to approximately 24-33 additional pounds of beef, and six to seven additional pounds of pork. If you estimate that half of the 24 million head of beef cattle harvested annually produce an additional 30 pounds of meat.

Are there any other beta agonists for cattle?

It will be hard to tell immediately, as other beta agonists are available to cattle feeders. Industry reports have indicated fed-cattle futures and boxed-beef prices have moved higher, with shorter beef supplies anticipated. The goal is to ensure that the animal’s well-being is considered first and foremost.

Can you use beta agonists in turkeys?

Approval for use in turkeys followed, but beta-agonists are not used as extensively in the turkey industry as in the swine and cattle industries.

Is it safe to use beta agonists in food?

Beta-agonists are approved feed additives and are deemed safe by the U.S. Food and Drug Administration (FDA), where they act to enhance lean muscle gain, increase growth rate, and increase feed efficiency.