Effects of a bioactive olive pomace extract from Olea europaea on growth performance, gut function, and intestinal microbiota in broiler chickens
Herrero-Encinas, Javier (Universidad Politécnica de Madrid. Departamento de Producción Agraria)
Blanch Nieto, Margarita (Lucta S.A. Innovation Division)
Pastor Milán, Josep (Universitat Autònoma de Barcelona. Departament de Medicina i Cirurgia Animals)
Mereu, A. (Lucta S.A.Innovation Division)
Ipharraguerre, I. R. (Lucta S.A. Innovation Division)
Menoyo, D. (Universidad Politécnica de Madrid. Departamento de Producción Agraria)

Date:	2019
Abstract:	The present study aims to investigate the effects of supplementing broiler diets with a bioactive olive pomace extract (OE) from Olea europaea on growth performance, digestibility, gut microbiota, bile acid composition, and immune response. To this end, three hundred and six 1-day-old broiler chickens (Ross 308) were housed in floor pens (6 pens/treatment, with 17 birds/pen). Animals were fed with a standard non-medicated starter diet for 21 D, and from 22 to 42 D of age with their respective experimental diet: a negative control with no additives (Control), a positive control with 100 ppm of monensin (Monensin) and the basal diet supplemented with 750 ppm of an OE (Lucta S. A. , Spain). Feed intake and growth rate were monitored weekly throughout the trial. From 21 to 42 D of age, no significant differences in feed intake were observed among dietary treatments; however, lower average daily gain and higher feed conversion ratio (P < 0. 05) was observed in birds fed the Control compared to Monensin and OE groups. Performance of birds fed OE or Monensin was similar throughout the trial. The apparent ileal digestibility of crude protein was higher in birds fed Monensin than Control treatment (P < 0. 05). No significant changes on bacterial composition at a family level were observed in the caeca of birds fed the experimental diets. Moreover, no significant differences on plasma and intestinal bile acid composition were observed among treatments. Birds fed the OE showed a significant decrease of IL-8 expression in the ileum (P < 0. 05). Additionally, the expression of TGF-β4, and Bu-1 was significantly upregulated (P < 0. 01) in broilers fed the OE and Monensin diets compared to those fed the Control. In conclusion, the inclusion of 750 ppm of a bioactive olive pomace extract from Olea europaea in broiler chicken diets improved animal growth likely as result of its anti-inflammatory properties.
Note:	Altres ajuts: ESIF/MEDGAN-CM S2013/ABI2913
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Broiler chicken ; Olive extract ; Performance ; Gut function ; Immune response
Published in:	Poultry Science, Vol. 99 (december 2019) , p. 2-10, ISSN 1525-3171

DOI: 10.3382/ps/pez467
PMID: 32416802

9 p, 282.3 KB

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