Effects of Ferulic Acid Supplementation on Growth Performance, Carcass Traits and Histochemical Characteristics of Muscle Fibers in Finishing Pigs

Animals

Etna Aida Peña-Ramos¹  Araceli Pinelli-Saavedra¹  Martín Valenzuela-Melendres¹  Adriana Muhlia-Almazán¹  Nidia Valenzuela-Grijalva¹  Libertad Zamorano-García¹  Humberto González-Ríos¹  Ismael Jiménez-Estrada²  Silvia Mariscal-Tovar²  Kenia López-García³ 

[1] Centro de Investigación en Alimentación y Desarrollo, A.C (CIAD, A.C.), Hermosillo 83304, Sonora, Mexico;Centro de Investigación y Estudios Avanzados del IPN, Departamento de Fisiología, Biofísica y Neurociencias, San Pedro Zacatenco, Mexico City 07000, Mexico;Departamento de Biología Celular y Fisiología, Unidad Periférica Tlaxcala, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Chiautempan 90800, Tlaxcala, Mexico;

关键词: phytogenics;    growth promoters;    pork production;    ractopamine;   

DOI  :  10.3390/ani11082455

来源: DOAJ

【 摘 要 】

FA dietary supplementation on the growth performance, carcass traits and histochemical characteristics of the Longissimus thoracis muscle from finishing pigs was investigated. Four hundred and twenty pigs were used in this study, and 105 animals (with five replicate pens and 21 pigs per pen) were assigned to one of four treatments: basal diet (BD) without additives (C−); BD + 10 ppm ractopamine hydrochloride + 0.97% lysine (C+); BD + 25 ppm of FA (FA); and BD + 25 ppm of FA + 0.97% lysine (FA-Lys). Dietary supplementation with FA or ractopamine increased both the average daily gain (14%) and loin muscle area (19%), while fat deposition decreased by 53%, in comparison with C− (p < 0.05). The growth performance of pigs treated with FA was similar to those of ractopamine (p > 0.05). The histochemical analysis showed that FA and C+ treatments induced a shift in muscle fiber types: from fast fibers to intermediate (alkaline ATPase) and from oxidative to glycolytic fibers. Muscle tissues from animals treated with FA or ractopamine had a lower cross-sectional area and a greater number of muscle fibers per area (p < 0.05). Findings regarding growth performance and carcass traits indicate that FA supplementation at 25 ppm without extra-lysine can replace the use of ractopamine as a growth promoter in finishing pigs.

【 授权许可】

Unknown