Benzoic acid and essential oils modify the cecum microbiota composition in weaned piglets and improve growth performance in finishing pigs

•Benzoic acid and essential oils reduce the inflammatory response.•Benzoic acid and essential oils increase microbial diversity in cecal content.•Benzoic acid and essential oils decrease the incidence of diarrhea in nursery phase.•Benzoic acid and essential oils increase the growth performance of fi...

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Bibliographic Details
Published in:Livestock science 2020-12, Vol.242, p.104311, Article 104311
Main Authors: Resende, Maíra, Chaves, Rhuan Filipe, Garcia, Ricardo Miranda, Barbosa, Jéssica Aparecida, Marques, Athos Silveira, Rezende, Lilian Ribeiro, Peconick, Ana Paula, Garbossa, Cesar Augusto Pospissil, Mesa, Dany, Silva, Claudia Cassimira, Fascina, Vitor Barbosa, Dias, Francine Taniguchi Falleiros, Cantarelli, Vinícius de Souza
Format: Article
Language:English
Subjects:
Additive
Diarrhea
Gut health
Microbiome
Swine
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Summary:•Benzoic acid and essential oils reduce the inflammatory response.•Benzoic acid and essential oils increase microbial diversity in cecal content.•Benzoic acid and essential oils decrease the incidence of diarrhea in nursery phase.•Benzoic acid and essential oils increase the growth performance of finishing pigs. The objective of this study was to evaluate the effects of benzoic acid (BA) and essential oils (EO) on cellular and humoral immune response, morphology, gene expression, antioxidant capacity in the jejunal mucosa, and cecal content microbiota in weaned piglets and growth performance from the nursery to finishing phase. One hundred and twenty barrows were weaned and assigned to three treatments in a randomized block design: basal diet without additives (NC), basal diet with antibiotics (PC), and basal diet with 0.3% BA and EO (BA+EO). The pigs were weighed 0, 42, 84, and 132 days into the experiment. The incidence of diarrhea was assessed daily in the nursery phase. On days 1, 3, and 9, blood samples were collected. On day 9, these animals were euthanized to collect jejunal samples and cecal content. In the nursery phase, the PC piglets showed a greater body weight (BW) and average daily gain (ADG) and a lower feed conversion ratio (FCR) compared to the NC group, but similar levels to the BA+EO group (P 
ISSN:1871-1413
1878-0490
DOI:10.1016/j.livsci.2020.104311