Process analysis of contamination of the white-toothed shrew, Crocidura dsinezumi, and the house mouse, Mus musculus, in dog-food

Abstract

I analyzed the processes of contamination of carcasses of the white-toothed shrew, Crocidura dsinezumi, or the house mouse, Mus musculus, in dog-food. Four items of examination were essential for the determination of the processes: 1) identification of carcasses, 2) determination of freshness of the carcasses, 3) detection of tooth marks or holes made by the animals on the packages, and 4) detection of feces of the animals in the packages. I divided the cases into three major processes: contaminations 1) at the complainers (e.g., a shrew in a package imported from Australia), 2) at the mills (e.g., a mummy mouse in a package without a hole), and 3) on the ways from the mills to the complainers (e.g., three mummy mice in a package with a hole).