Abstracts

Journal of the American Association for Laboratory Animal Science
by the American Association for Laboratory Animal Science

The unique identification of neonate rodents has long been applied in behavioral and toxicological studies. More recently, the development of transgenic rodent strains has increased the need for adult and neonate rodent identification primarily in an effort to manage colonies and facilitate genotyping …

H Yacowitz, BA Piscitelli, A Yacowitz 
Research and Development Laboratory, AIMS, Inc., Piscataway, NJ 08854

Permanent and humane identification of laboratory animals from day-old to maturity is being done at many laboratories using tail, ear, or body tattoos employing AIMS™ black pigment #242. In conducting large studies, speed of tattooing is an important factor. Tattooing usually involves dipping the …

By Norman B. Guilloud, DVM, and A. Neill Johnson, DVM, Ph.D.

PRESENT METHODS FOR IDENTIFYING rats and mice are not always satisfactory. Ear notch- ing and ear tagging, though widely used by researchers, have inherent problems. Applying and reading ear notches is time consuming. When one person applies ear notches others may find them difficult to read …

H. Yacowitz, A. Yacowitz, R.F. McConnell, G.N. Rao 
AIMS™ Inc, Piscataway, NJ 08854

Identification of albino mice has been accomplished by using tail tattoos with black pigment 242. However, tattoos on pigmented mice were difficult to read. A 2-year study was conducted to evaluate 3 tattoo pigments at two tattoo sites on 320 B6C3Fl mice. Weanling mice …

H. Yacowitz, M.E. Weyand, A. Yacowitz and E.H. Weyand. 
Animal Identification and Marking Systems, Inc.. Piscataway, NJ.

Current methods available for the identification of neonate rodents prior to weaning have significant procedural weaknesses that limit their utility. For example, in the case of using a magic marker frequent applications are required; the injection of pigment into paws is time consuming to perform and to read; and toe clipping of animals is invasive …

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