| abstract |
(57) [Summary] [Problem] To provide a fetal growth promoting agent which is administered to a pregnant mother animal to promote fetal growth and a livestock feed having an effect of promoting fetal growth [Solution] Preferably, the isoelectric point is 7.5 to 11, a milk-derived basic protein composition containing a basic amino acid as a constituent amino acid in an amount of 10% by weight or more is used as an active ingredient. |