A Technique for Marking Marsupial Pouch Young With Fluorescent Pigment Tattoos

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Abstract
Small quantities of fluorescent pigments were tattooed into the pinnae of pouch young Dasyurus geoffroii and Isoodon obesulus (Marsupialia), and into the pinnae of 5-day-old Mus rnusculus (Rodentia). The tattoos contrasted sharply with natural skin pigmentation when scanned with a UV light. Of 11 pigments tested, Flare 610 pigments were the most persistent, remaining visible for a minimum of 6 months. The technique facilitates rapid, cheap and reliable marking of marsupial pouch young, and should be generally applicable for determining filial relationships in a wide range of marsupial species.

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