Jaime Devilat B,1, Alejandro Skoknié K,2

Sixteen crossbred pigs were randomly allotted to 4 groups to evaluate throughout food preference, feed intake and growth rate alld the amino acid balance of rapeseed meal (RSM). An amino acid balanced (B) diet that included fish meal and an "imbalanced" (I) diet that included 20% RSM were formulated. The I diet was "corrected" by the addition of 0,15% L-lysine (diet CL) andjor 0,10% DL-methiomine (diet CLM) . For 3 consecutive periods of 14 days each, the following dietary choices were offered: diet B vs. diet I; diet I vs. diet CL and diet I vs. diet CLM.

Key words:

1Ing. Agr. MS, Proyecto Producción Porcina, Estación Experimental La Platina, Instituto de Investigaciones Agropecuarias, Casilla 5427, Santiago, Chile.
2Médico Veterinario, ,Departamento de Producción Animal, Facultad de Ciencias Pecuarias y Medicina Veterinaria, Universidad de Chile.

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