Mexican oregano essential oils given in drinking water on performance, carcass traits, and meat quality of broilers

The objective of this study was to evaluate the effects of 2 Mexican oregano essential oils (MOO), from Poliomintha longiflora Gray (PLG) and Lippia berlandieri Schauer (LBS), in drinking water (DWt) on the performance, slaughter variables, and meat quality of broilers over a 40 D period of growth. A total of 180 non-sexed Ross-308 broilers (1-day-old) were randomly assigned to 3 treatments with 6 replications each (10 birds per replicate): CON = DWt control (without MOO); PLG = DWt + 400 mg/L of PLG; and LBS = DWt + 400 mg/L of LBS. The CON, PLG, and LBS broilers body weights were similar (P > 0.05) at all times. Feed intake (FI) was different by treatment (P 0.05), although WG for CON was slightly higher. In CON broilers, slaughter weight was highest (P < 0.05), but thigh yield was lowest (P < 0.05). The CON and PLG treatments were lower (P < 0.05) in thigh and leg cooking losses. The PLG treatment presented the highest values (P < 0.05) for breast-meat redness, saturation index, shear force, odor, taste, and overall sensory acceptability. The LBS was higher (P < 0.05) for breast-meat shear force, cohesiveness and resilience, but lower (P <0.05) for sensory attributes. Mexican oregano essential oils at 400 mg/L can serve as natural alternative additives in DWt to improve broiler production and meat quality

Inulina de agave y aceite de orégano mejoran la productividad de pollos de engorda

Abstract: The objective of this study was to evaluate the effect of agave inulin (AI) and Mexican oregano essential oil (MOEO) on the productive behavior, slaughter variables and quality of broiler meat. A total of 330, 1-day-old Ross-308 broilers were randomly assigned to six treatments with five replications each (11 chickens per pen): T1 = control diet, T2 = diet + 5.0 g kg-1 AI, T3 = diet + 10.0 g kg-1 AI, T4 = diet + 5.0 g kg-1 AI + 0.2 g kg-1 MOEO, T5 = diet + 10.0 g kg-1 AI + 0.2 g kg-1 MOEO, and T6 = diet + 0.2 g kg-1 MOEO. Chickens in T4 and T5 (p < 0.05) weighed less than in T1, but feed consumption was higher in T2 (5.63 kg) and the lowest in T6 (4.77 kg). Sacrifice and wing weight (p < 0.05) were higher in T1 and lower in T5 and T4. Water retention, hardness and gomosity (p < 0.05) were higher in T3 (63.2%; 9.36 kgf; 3204.9 g) and lower in T1 (56.98%; 7.28 kgf; 2532.7 g), and the yellow color was higher in T5 and lower in T3. Agave inulin (10.0 g kg-1) and oregano oil (0.2 g kg-1) can be used in broilers to improve meat production and quality.Resumen: El objetivo del estudio fue evaluar el efecto de la inulina de agave (IA) y aceite esencial de orégano Mexicano (AEOM) en el comportamiento productivo, variables de sacrificio y calidad de la carne de pollos de engorda. Un total de 330 pollos de engorda (1 día de edad) Ross-308 se asignaron de forma aleatoria a seis tratamientos con cinco repeticiones cada uno (11 pollos por corral): T1 = dieta control, T2 = dieta + 5.0 g kg-1 IA, T3 = dieta + 10.0 g kg-1 IA, T4 = dieta + 5.0 g kg-1 IA + 0.2 g kg-1 AEOM, T5 = dieta + 10.0 g kg-1 IA + 0.2 g kg-1 AEOM, y T6 = dieta + 0.2 g kg-1 AEOM. Los pollos de T4 y T6 (p < 0.05) pesaron menos que T1, pero el consumo de alimento fue más alto en T2 (5.63 kg) y el más bajo en T6 (4.77 kg). El peso sacrificio y alas (p < 0.05) fueron más altos en T1 y más bajos en T5 y T4. La retención de agua, dureza y gomosidad (p < 0.05) fueron mayores en T3 (63.2%; 9.36 kgf; 3204.9 g) y menores en T1 (56.98%; 7.28 kgf; 2532.7 g), y el color amarillo fue más alto en T5 y más bajo en T3. La inulina de agave (10.0 g kg-1) y el aceite de orégano (0.2 g kg-1) pueden usarse en la engorda de pollos para mejorar la producción y calidad de la carne