Zeranol

Zeranol is a non-steroidal estrogenic compound used as a growth promoter in livestock, including beef cattle and sheep. It is a resorcylic acid lactone and a derivative of mycotoxin zearalenone, produced by the fungus Fusarium.

History

Zeranol was first approved for use in the United States in 1969 by the FDA. It is marketed under the trade names Ralgro and Ralone.

Use in livestock

Zeranol is used as a growth promoter in livestock, particularly beef cattle and sheep. It is administered via a subcutaneous ear implant. The compound promotes growth by increasing the rate of weight gain and improving feed efficiency.

Health effects

Zeranol has been shown to have estrogenic effects, which can lead to reproductive issues in animals. There is also concern about potential health effects in humans who consume meat from animals treated with zeranol, although the FDA maintains that the levels present in meat are safe for human consumption.

Regulation

Zeranol is approved for use in livestock in the United States and several other countries. However, it is banned in the European Union due to concerns about potential health effects.

See also

• Growth hormone treatment
• Veterinary drug
• Food safety

References

Zeranol Resources
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