Provided is a method whereby a feed can be stably supplied at a reduced cost and eggs having a yolk color preferred by consumers can be obtained. More specifically, provided are: a formula feed for poultry that contains not more than 50% of corn and 1-8 ppm of astaxanthin derived from a dried bacteria powder and a method for obtaining eggs having a desired yolk color with the use of the formula feed. According to the present invention, a formula feed, which can be stably supplied at a low cost regardless of season or weather, can be provided and, moreover, poultry eggs having a yolk color suitable for the consumers taste can be provided at a lower cost.本發明提供一種可實現飼料之成本之降低及穩定供給,且獲得呈現消費者所青睞之蛋黃色之蛋之方法。具體而言,本發明提供一種以50%以下之範圍含有玉米且以1~8ppm之範圍含有源自細菌乾燥粉末之蝦紅素之家禽用配方飼料、及使用上述配方飼料而獲得呈現所需之蛋黃色之蛋之方法。藉由本發明,可提供一種不受季節及氣候影響而可以低價格實現穩定供給之配方飼料,並且可以更低價格提供一種呈現迎合消費者之嗜好之蛋黃色之家禽蛋。
