Use of protected methionine in diets for finishing pigs

• Trujano-San Luis, David ^[1] ; Figueroa-Velasco, José L. ^[1] ; Martínez-Aispuro, José A. ^[1] ; Sánchez-Torres, María T. ^[1] ; Cordero-Mora, José L ^[1] ; Ruíz-Flores, Agustín ^[1] ; Crosby-Galván, María M ^[1]
  1. [1] Colegio de Postgraduados

     Colegio de Postgraduados

     México

     
• Localización: Agro Productividad, ISSN-e 2594-0252, Vol. 15, Nº. 5, 2022 (Ejemplar dedicado a: Mayo), págs. 93-100
• Idioma: inglés
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• Resumen

  • 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.