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Alternatives to the Use of Animals in Research
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ANIMAL IDENTIFICATION: THE HAMSTER
Individual identification of animals plays a critical role in accurate record keeping. There are several means of identification for each species. It is important to choose the appropriate method for the species taking into consideration the needs of your research.

Method Advantages Disadvantages
Ear Tag
  • Inexpensive
  • Anesthesia not required
  • Simple procedure
  • Permanent
  • Possible local infection
  • Animal must be securely restrained
  • Tags can become dislodged
  • Tags may get caught in caging
Ear Punch
  • Inexpensive
  • Anesthesia not required
  • Permanent
  • Results variable
  • Animal must be securely restrained
Electronic Transponders
  • Efficient
  • Highly accurate
  • Easy to use
  • Permanent
  • Expensive
  • Current technology lacks standardization among products
  • Animal must be securely restrained
  • Anesthesia recommended