In the wake of news that contaminants had been found in pet foods manufactured by Menu Foods Inc. of Ontario, Canada, and sold under a large number of brands in the United States, natural foods retailers are experiencing a surge in demand for natural and organic pet food. The increase follows a product recall in which a number of dogs and cats were killed or sickened as a result of eating the contaminated pet food. At Vitamin Cottage, a sign in the pet products department outlined which brands were recalled, and that no natural and organic brands were involved in the recall. Dry grocery buyer Rick Werner of Wild Oats Markets was quoted in an Associated Press article saying that natural and organic pet foods had been growing at 15 to 25 percent per year prior to the recall. Boulder-based natural pet food manufacturer Pet Promise has been swamped with inquiries, says general manager Julie Mueller. No Pet Promise product was involved in the recall, she assures.