EFFECT OF TWO CHEMOTYPES OF OREGANO ESSENTIAL OIL ON BROILER PERFORMANCE, NUTRIENT BALANCE, AND LIPID PEROXIDATION OF BREAST MEAT DURING STORAGE

Claudia Ariza Nieto,Ronnal Esneyder Ortiz,Germán Afanador Tellez

doi:10.1590/1809-6891v19e-47819

Claudia Ariza Nieto, Ronnal Esneyder Ortiz + Show 1 more

Open Access

https://doi.org/10.1590/1809-6891v19e-47819

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Abstract

Abstract This study evaluated the functional effects of two chemotypes of oregano essential oil (OEO): Lippia Origanoides (LO) and a comercial product Synergy Essence (SE). Broilers were randomly assigned to one of eight dietary treatments: 1) Basal diet (BD); 2) BD+ antibiotic growth promoters (AGP) (bacitracin 50g/ton); 3) BD+LO125 (125g/ton); 4) BD+LO250 (250g/ton); 5) BD+LO500 (500g/ton); 6) BD+SE125 (125g/ton); 7) BD+SE250 (250g/ton); 8) BD+SE500 (500g/ton). At the time of slaughter (42 d), five birds per treatment were slaughtered. A portion of the breast was minced and stored at -4 ºC for 3, 6, and 9 days. Lipid peroxidation was determined by measuring of malondialdehyde (MDA), data were analyzed as a completely randomized design with a factorial arrangement of treatments (8x4). Broilers fed SE250 had greater average daily gain (ADG) compared to broilers fed BD (P<0.05). Broilers fed LO500 had greater (P<0.05) organic matter digestibility than the ones fed BD. As days of storage increased, MDA concentration increased (P<0.05). Broilers fed SE500 had lower (P<0.05) MDA concentration than those fed BD and AGP. These data indicate that birds fed OEO grow faster than those fed a BD, similar to birds fed AGP. Some of these responses are possibly explained by increased digestibility and energy utilization. In addition, providing OEO from SE at 500g/ton resulted in lower lipid peroxidation in ground breast meat throughout the tested storage time.

Highlights

The primary effects associated with the inclusion of antimicrobial feed additives include the prevention of digestive disorders, improved feed utilization, and animal performance
This study evaluated the functional effects of two chemotypes of oregano essential oil (OEO): Lippia Origanoides (LO) and a comercial product Synergy Essence (SE)
The use of antibiotic growth promoters (AGP) in broiler feeding systems is a powerful tool in the poultry industry to promote growth; it renews controversial positions on a wide range of people due to health concerns related to the possible transfer of antibiotic resistance among pathogenic species

Summary

Introduction

The primary effects associated with the inclusion of antimicrobial feed additives include the prevention of digestive disorders, improved feed utilization, and animal performance. Herb spices belongs to the family Lamiaceae, such as oregano and thyme, which have showed strong antioxidant activity comparable to synthetic antioxidants. In this context, our research group has been working for the past five years with Lippia origanoides Kuth thymol-rich OEO chemotype (>70%) that has demonstrated antimicrobial and antioxidant properties in vitro and in vivo exploratory studies. The aim of this study, was to evaluate the effects of two OEO chemotypes on broiler growth performance, nutrient balance, and lipid peroxidation of breast meat during storage

Materials and Methods

Results and discussion

Conclusions