fresh grass can replace the vegs and the grass is far better and more nutricious and appropriate than any veg. My piggies' diet is based on fresh grass (and hay), no pellets (only some pieces) and some vegs. They have grown amazingly and are healthy. I give them a little supplement of vit C but it is only my choice, the vet agrees but he says that with all that good fresh grass and the piece of bell pepper they eat daily maybe the supplement is only wasted money. The gut of a piggie is designed for the grass, they are herbivore; therefore my advice is to go on like that, don't worry of the quantity of the vegs and they (their vet says) can have unlimited hay and grass (hay is grass...). The ration for my piggies is now half bag a day, when possible, sometimes even more (it depends on them and how much they are hungry)
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