PROBLEM TO BE SOLVED: To solve such a problem that: conventional pet food and supplements cannot deal with the change of necessary nutrients for dogs or cats as pet animals, leading to having not been smooth in the method of feeding nutrients thereto.SOLUTION: There is provided a process: pet animals such as dogs or cats are fed with dried oyster rich in zinc, excellent in nutritional balance and having favorableness, thus enabling nutrients to be easily fed to them and also enabling long-term preservation of these nutrients by packaging an oxygen scavenger together with the nutrients in an aluminum zippered bag for improving their preserving properties.COPYRIGHT: (C)2013,JPO&INPIT【課題】 従来のペットフードやサプリメントでは、ペットである犬や猫の必要栄養素の変化に対応できず、栄養補給の与え方がスムーズでは無かった。【解決手段】 亜鉛を多く含み栄養バランスに優れ嗜好性のある乾燥牡蠣を与えることで、簡単に犬や猫に栄養補給が可能となり、保存性を高める為にアルミ製ジップ付袋に脱酸素剤を同包する事で、長期間の保存が可能となる。