Like all Viking Farmer hay， Viking Farmer Oat Hay for Rabbits & Small Pets is grown， harvested， inspected and packed with the utmost care， ensuring that it is completely free from mold， weeds and other contaminants including pesticides and GMOs. That means， your furry friend will get to enjoy some of the greenest and purest hay possible! Viking Farmer cures the haylage to paw-fection with moisture meters， monitors the quality in a lab and certifies the hay to meet the highest standards from the Bureau of Land Management， US Forest Service， and North American Invasive Species Management Association. This fresh oat hay is the perfect option for rabbits， guinea pigs and chinchillas and provides them with fiber， vitamins and minerals to promote dental hygiene， healthy digestion and a shiny coat.