Study the effect of inclusion of feed flavonoid substances on animal performance and ruminal fermentation in calves
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The thesis includes the effect of Bioflavex®, an orange plant extract rich in flavonoids, on rumen fermentation and meat quality. Several experiments were performed, in the “in vivo” trials (Exp. 1,2 and 3) under acidosis conditions the plant extract blend, ameliorated pH decrease and improved the acetic/propionic ratio and relative abundance of lactate-consuming microorganism (M. elsdenii). The “in vitro” trials (Exp. 4 and 5) confirmed the “in vivo” findings and it was demonstrated that the effect of flavonoids blend relies in its main components, Naringine, Neohesperidine moreover the flavonoids blend reduced gas and methane production through a significant reduction in abundances of methanogenic archaeas. Finally, in the sixth “in vivo” experiment, the effect of Bioflavex® on carcass quality and fat color and stability of 32 young Friesian bulls was negligible.
European research projects
- Tesis Doctorals 
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Effects of an extract of plant flavonoids (Bioflavex) on rumen fermentation and performance in heifers fed high-concentrate diets Balcells Terés, Joaquim; Aris, A.; Serrano, A.; Seradj, Ahmad Reza; Crespo, J.; Devant, M. (American Society of Animal Science, 2012-12)To study the effects of an extract of plant flavonoids [Bioflavex (FL)] in cattle fed high-concentrate diets, 2 experiments were designed. In the first experiment, the effects of Bioflavex on the development of rumen ...
The effect of Bioflavex® and its pure flavonoid components on in vitro fermentation parameters and methane production in rumen fluid from steers given high concentrate diets Seradj, Ahmad Reza; Abecia, Leticia; Crespo, J.; Villalba Mata, Daniel; Fondevila, Manuel; Balcells Terés, Joaquim (Elsevier, 2014-11)An in vitro assay was designed to analyze the effect of either Bioflavex (R) (BF) or each of its pure flavonoid components [Neoeriocitrine (NE), Naringine (NG), Isonaringine (IN), Hesperidine (HS), Neohesperidine (NH), ...
Estudio de la capacidad estabilizadora de una mezcla comercial de sustancias flavonoides (Bioflavex ®) sobre la fermentación ruminal en situaciones de acidosis inducida Balcells Terés, Joaquim; Arís, A.; Devant, M.; Crespo, J.; Seradj, Ahmad Reza (Asociación Interprofesional para el Desarrollo Agrario, 2011)The effect of flavonoids Bioflavex ® (Exquim, SA, Barcelona Spain) on the prevention of rumen acidosis was studied in a 2 x 8 cross-over design using 8 crossbreed heifers (451.4 ± 14.32 kg of LW). Each period consisted of ...