求翻译：Effect of radiation processing on the shelf-life and safety of some ethnic Indian meat products like chicken chilly, mutton shammikababs and pork salami during chilled storage was investigated. Radiation processing resulted in dose dependent reduction inmicrobial counts. A dose of 3 kGy was found to be optimal for the shelf-life extension. In all the three irradiated (3 kGy) meatproducts the shelf-life was extended by more than 2 weeks at 0是什么意思？

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