Manufacturing method for hen's egg improved in quality

A method for producing hen's egg improved in quality, the method comprising:

• feeding a solid-cultured product of filamentous fungi blended with feedstuff of a hen to improve quality of the hen's egg, wherein
• the hen is a laying hen that is 325-day old to 455-day old,
• the filamentous fungi is a transformant of Aspergillus oryzae (AOK11) that is genetically manipulated so that tannase (tanA), phytase (phyA), pectin lyase (pelA), and polygalac-turonase (pgaB), are expressed, and
• quality of hen's egg, which is egg shell strength or reduction in a generation ratio of an abnormal egg, is improved for the hen's egg that the laying hen that is 325-day old to 455-day old ingesting the solid-cultured product of the filamentous fungi produce,
• the method is for improving quality of the eggs by feeding the solid-cultured product of the filamentous fungi by blending the solid-cultured product of the filamentous fungi with the feedstuff of a hen;
• and
• a blend ratio of the solid-cultured product of the filamentous fungi with the feedstuff is 0.1% by mass to 5.0% by mass.