Patent ID: 8303979

Claim:
A feed or food supplement comprising a premix containing arginine in a sufficient amount, upon mixing with feed, to produce an animal feed for feeding a gestating sow, wherein the animal feed has an amount of lysine, methionine, cysteine, threonine, tryptophan, and arginine, and wherein the amount consists essentially of lysine and the following in an amount relative to the amount of lysine (w/w) in the following ranges: total methionine + cysteine: >0.55; threonine: >0.60; tryptophan: >0.15; and arginine: >2.25, wherein a daily dosage of more than 200 mg arginine per kg body weight of the gestating sow is provided upon feeding the gestating sow with the animal feed, and wherein the premix contains from 1.25 to 10 wt % arginine.