| abstract |
The object of the present invention is to provide a novel animal cell growth promoter. Specifically, a culture supernatant of an embryonic membrane of an egg of an avian or reptile is used as an animal cell proliferation promoter. For example, the proliferation of animal cells can be promoted by adding a cell proliferation agent containing, as an active ingredient, a culture supernatant of an embryonic membrane of an egg of birds or reptiles to a culture medium for animal cell culture. |