Basso, N. G. and J. D. Williams. 1989. The diet of Ceratophrys ornata (Anura: Ceratophryidae) in Argentina. 1st World Congr. Herpetol. Canterbury.

and

Duellman, William E. and Miguel Lizana. 1994. Biology of a sit-and-wait predator, the leptodactylid frog Ceratophrys cornuta. Herpetologica. 50 (1):51-64.

With respect to the vitamin content, it depends on the food fed to the rodents when referring to the vitamins. While insects are low in vitamin D3, there isn't any guarantee that the pink will also contain vitamin D3 as they can also use D2 which cannot be used by the frog. As D2 is cheaper than D3, D2 is often substituted into the diet of animals (and people) that can readily use either one.... this is one of the reasons why the pink should be dusted with D3. In addition, pinks also tend to have a higher vitamin A as retinol level than insects which can throw off the absorbtion of D3 (as vitamin A, D3 and E all compete for uptake) and cause a form of MBD.

Ed

Ed

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