abstract |
The present invention relates to a method for improving the fertility rate of sows.n n n The present invention relates to sow feed additives containing reduced form of folic acid as an active ingredient, such as 7,8-dihydrofolic acid, leucovorin, medicament powder, ruptured cells of microorganisms or cell extracts, sows to which such additives are added. Provided is a method of breeding sows by orally administering the feed and the additive to sows or by feeding the feed. |