For some reason my pigs have stopped eating some of their food. ( 2-sows 3yrs old.) this is what they have stopped eating each day combined; 1/4 peppers, 4 baby carrots, 6 slices of cucumbers and 1/4 sliced & chopped celery. This is what they are still eating each day combined; 3 cups of spring mix lettuce, few sprigs of parsley, few sprigs cilantro, 1/4 cup spinach, Timothy cavy performance pellets, ( 1/2 C.), all the grass hay they want and are still drinking water. weight has not changed yet. I have read all the nutritional guide lines by Lye. I'm wondering if they can get tired of the same vegetables or if some thing could be wrong?