Provided are: a poultry feed a method for increasing the gizzard weight of poultry by using the poultry feed and a method for rearing poultry by using the poultry feed. A poultry feed is used in which 0.1-5 parts by mass of a fibrous raw material is added with respect to 100 parts by mass of a feed before adding the fibrous raw material.本發明提供一種家禽用飼料、及使用該家禽用飼料的家禽的肌胃重量的增加方法、以及使用該家禽用飼料的家禽的飼養方法。使用相對於調配纖維質原料前的飼料100質量份而調配有0.1質量份~5質量份的該纖維質原料的家禽用飼料。無
