Natural Oregano Essential Oil May Replace Antibiotics in Lamb Diets: Effects on Meat Quality

Antibiotics

卷:9

Mariana Huerta-Jimenez¹  LuisM. Carrillo-Lopez¹  IvanA. Garcia-Galicia²  JoseA. Arras-Acosta²  AnaL. Rentería-Monterrubio²  AlmaD. Alarcon-Rojo²  JuanM. Tirado-Gallegos²  JoseL. Loya-Olguin³ 

[1]Catedrático CONACYT-UACH, Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahua, Chihuahua 31453, Mexico

[2]|Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahua, Chihuahua 31453, Mexico

[3]|Posgrado en Ciencias Biológico Agropecuarias/Unidad Académica de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nayarit, Compostela 63700, Mexico

关键词: lamb;    carvacrol;    monensin;    meat tenderness;    TBARS;   

DOI  :  10.3390/antibiotics9050248

来源: DOAJ

【 摘 要 】

A study was conducted to investigate the effect of oregano essential oil (OEO) and monensin sodium on the oxidative stability, colour, texture, and the fatty acid profile of lamb meat (m. Longissimus lumborum). Twenty Dorper x Pelibuey lambs were randomly divided into five treatments; control (CON), monensin sodium (SM, Rumensin 200^® 33 mg/kg), a low level of OEO (LO, 0.2 g/kg dry matter (DM)), a medium level of OEO (MO, 0.3g/ kg DM), and a high level of OEO (HO, 0.4 g/kg DM). Dietary supplementation of OEO at any concentration lowered the compression strength in comparison with CON and SM. MO had the highest a* values (7.99) and fatty acid concentration (C16:1n7, C18:1n9c, C18:1n6c, C20:1n9, and C18:2n6c) during storage for 7 d at 3 °C. Lipid oxidation was not promoted (p > 0.05) by the moderated supplementation of oregano essential oil; however, OEO at 0.3 g/kg DM showed a slight lipid pro-oxidant effect. Dietary supplementation of MO and SM had the same effect on colour, tenderness, and the fatty acid profile of lamb (L. lumborum). It was demonstrated that oregano essential oil was beneficial for lambs feeding, and it could be a natural alternative to replace monensin in lamb diets with improvements in the quality of the meat.

【 授权许可】

Unknown