I bought a new sack of feed today. It is the same brand that I have always fed and it does not look molded, it smells normal, no bugs, nothing wrong with it. My wether ate it just fine. The problem is my three does acted hungry, but when I put out the feed they smelled it and turned away. Not sure what to do from here. any suggestions? The only thing different is that we had a cool front last night and the temps dropped a good bit. Should I just wait and tommorrow they will eat again?