
Estimation of the standardized ileal digestible lysine requirement and the ideal ratio of threonine to lysine for late finishing gilts fed low crude protein diets supplemented with crystalline amino acids
Keywords: AA; amino acid; ADFI; average daily feed intake; ADG; average daily gain; BW; body weight; CAA; crystalline amino acids; CP; crude protein; FCR; feed conversion ratio; Lys; lysine; SID; standard ileal digestible; SUN; serum urea nitrogen; Thr; threonine;