Evaluation of Three Formulations of Essential Oils in Broiler Chickens under Cyclic Heat Stress.

Autor: Ruff J; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Tellez G Jr; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Forga AJ; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Señas-Cuesta R; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Vuong CN; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Greene ES; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Hernandez-Velasco X; Departamento de Medicina y Zootecnia de Aves, Facultad de Medicina Veterinaria y Zootecnia, UNAM, 04510 Cd. de Mexico, Mexico., Uribe ÁJ; Promitec, Bucaramanga, Santander, Colombia., Martínez BC; Promitec, Bucaramanga, Santander, Colombia., Angel-Isaza JA; Promitec, Bucaramanga, Santander, Colombia., Dridi S; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Maynard CJ; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Owens CM; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Hargis BM; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Tellez-Isaias G; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA.
Jazyk: angličtina
Zdroj: Animals : an open access journal from MDPI [Animals (Basel)] 2021 Apr 10; Vol. 11 (4). Date of Electronic Publication: 2021 Apr 10.
DOI: 10.3390/ani11041084
Abstrakt: The objective of the present research was to assess the dietary supplementation of three formulations of essential oils (EO) in chickens under heat stress (HS). Day-of-hatch Cobb 500 chicks ( n = 500) were randomly distributed into four groups: 1. HS control + control diets; 2. HS + control diets supplemented with 37 ppm EO of Lippia origanoides (LO); 3. HS + control diets supplemented with 45 ppm LO + 45 ppm EO of Rosmarinus officinalis (RO) + 300 ppm red beetroot; 4. HS + 45 ppm LO + 45 ppm RO + 300 ppm natural betaine. Chickens that received the EO showed significant ( p < 0.05) improvement on BW, BWG, FI, and FCR compared to control HS chickens. Average body core temperature in group 3 and group 4 was significantly ( p < 0.05) reduced compared with the HS control group and group 2. Experimental groups showed a significant reduction in FITC-d at 42 days, a significant increase in SOD at both days but a significant reduction of IFN-γ and IgA compared with HS control ( p < 0.05). Bone mineralization was significantly improved by EO treatments ( p < 0.05). Together these data suggest that supplemental dietary EO may reduce the harmful effects of HS.
Databáze: MEDLINE
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