Olive pomace oil and acid oil as alternative fat sources in growing-finishing broiler chicken diets
Verge-Mèrida, Gerard (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Solà Oriol, David (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Tres, A. (Universitat de Barcelona. Departament de Nutrició, Ciències de l'Alimentació i Gastronomia)
Verdú, M. (BonÀrea Agrupa, 25210 Guissona, Spain)
Farré, G. (BonÀrea Agrupa)
Garcés-Narro, Carlos (Universidad CEU Cardenal Herrera. Departamento de Producción y Sanidad Animal)
Barroeta, Ana Cristina (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)

Date:	2022
Abstract:	The aim of the present study was to investigate the effect of dietary supplementation of olive pomace oil and olive pomace acid oil, which are rich in monounsaturated fatty acids (FA) but differ in free FA content, on growth performance, digestibility and FA profile of abdominal fat and breast meat. A total of 3,048 one-day-old mixed-sex broiler chickens (Ross 308) were randomly distributed into 24 pens and 3 dietary treatments (8 replicates per treatment). Experimental diets were administered for growing (from 22 to 29 d) and finishing (from 30 to 39 d) periods, consisting of a basal diet supplemented with 6% (as-fed basis) palm oil (PO), olive pomace oil (O), or olive pomace acid oil (OA). Animals fed O achieved the lowest feed conversion ratio (P < 0. 01), together with the highest AME value (P = 0. 003), but no differences were observed between OA and PO. Regarding FA digestibility, O and OA showed higher values than PO for all FA in both apparent ileal digestibility (AID) and apparent total tract digestibility. Comparing the AID between O and OA, no differences were observed for total FA, monounsaturated FA, or polyunsaturated FA, but animals fed OA showed lower AID values for saturated FA than those fed O (P < 0. 001). The FA profile of abdominal fat and breast meat reflected that of the diet, with higher monounsaturated FA and lower saturated FA in animals fed O and OA compared to those fed PO. In sum, the inclusion of both olive pomace oil and acid oil in growing-finishing broiler chicken diets led to great performance parameters and high FA digestibility values, together with an enrichment with monounsaturated FA in abdominal fat and breast meat compared to the use of palm oil. However, a better AID of saturated FA and feed conversion ratio is achieved with O compared to OA.
Grants:	Ministerio de Economía y Competitividad AGL2015-64431-C2-1-R Agencia Estatal de Investigación RYC-2017-23601 Agencia Estatal de Investigación FPU17/02263
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Olive pomace oil ; Acid oil ; Digestibility ; Fatty acid ; By-product
Published in:	Poultry Science, Vol. 101 (july 2022) , ISSN 1525-3171

DOI: 10.1016/j.psj.2022.102079
PMID: 36041393

9 p, 290.8 KB

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