Wysong expanded the recall of its extruded dog foods manufactured in June, July and August of 2009 with lot numbers Maintenance 090817, Senior 090811 and Synorgon 090629.
Those lots join five others recalled earlier (Maintenance 090617, 090624, 090706, and 090720 and Senior 090623).
The company attributed the mold to unusually high heat and humidity during the summer in combination with a malfunctioning moisture checking device, according to its Web site .
Wysong reported its foods were tested for mycotoxins and came back negative.
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