PROBLEM TO BE SOLVED: To provide a method for producing used tea leaves of raw material for feed that do not impair formability, even if they are added to pet feed, and contain low-caffeine but effective substances such as catechin and dietary fiber, and to provide pet feed compounded with the used tea leaves of raw material.SOLUTION: A palatable substance is contained in a proportion of 0.005 to 1.0 in a mass ratio based on food residues derived from plants. The food residues have a particle size of more than 150 μm and 1 mm or less and a water content of 1.5 mass% or more and 25 mass% or less, and a content ratio of the food residues is 1.0 mass% or more and 10.0 mass% or less.SELECTED DRAWING: None【課題】ペット用飼料に添加しても成形性を損なわず且つ、低カフェインでありながらカテキンや食物繊維などの有効物質を含む飼料用原料茶殻の製造方法及び、その原料茶殻を配合したペット用飼料を提供することである。【解決手段】植物由来の食物残渣に対し、嗜好性物質を質量比で０．００５～１．０の割合で含有し、前記食物残渣は、粒径１５０μm超１ｍｍ以下、且つ含水率１．５質量％以上２５質量％以下であって、前記食物残渣の含有比率が１．０質量％以上１０．０質量％以下とした。【選択図】なし
