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Resumen de Use of protected methionine in diets for finishing pigs

David Trujano San Luis, J. Luis Figueroa Velasco, José Alfredo Martínez Aispuro, Maria Teresa Sánchez Torres, José L. Cordero Mora, Agustín Ruiz Flores, María M. Crosby Galván

  • Objective: To evaluate the substitution of regular DL-methionine (RM) by protected DL-methionine (PM) in the productive performance of finishing pigs.

    Design/Methodology/Approach: 50 pigs (56.852.02 kg of live weight) distributed in a completely randomized experimental design were used. The treatments consisted of the substitution of MR by MP (0, 25, 50, 75, and 100%) in diets for finishing I and II pigs.

    Results: As the MP in the diet increased, the gain of final live weight (LWF) and backfat thickness (BFT) in finishing I increased linearly (p0.05), while feed:gain ratio (FGR) decreased linearly (p0.07). PM at finishing II phase linearly (p0.10) improved feed intake, FGR, and longissimus muscle area.Study Limitations/Implications: Feeding pigs by including protected amino acids improves their productive response.

    Findings/Conclusions: The use of protected methionine in diets for finishing I pigs improves some productive response variables.


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