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Mannelli F, Minieri S, Tosi G, Secci G, Daghio M, Massi P, Fiorentini L, Galigani I, Lancini S, Rapaccini S, Antongiovanni M, Mancini S, Buccioni A. Effect of Chestnut Tannins and Short Chain Fatty Acids as Anti-Microbials and as Feeding Supplements in Broilers Rearing and Meat Quality. Animals (Basel) 2019; 9:ani9090659. [PMID: 31492039 PMCID: PMC6769924 DOI: 10.3390/ani9090659] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/30/2019] [Accepted: 09/02/2019] [Indexed: 01/19/2023] Open
Abstract
Simple Summary The poultry industry needs to replace antibiotics with natural or synthetic compounds able to overcome problems linked to the development of bacterial resistance. Tannins and short chain fatty acids are valid alternatives to contrast the growth of pathogens. However, tannins may induce detrimental effects on animal performances, especially in monogastrics, causing damage on gut villi. In contrast, short chain fatty acids are very efficient in influencing positively the morphology of small intestine wall. Hence, the aim of this trial was to develop a feeding strategy for broiler rearing, based on the use of chestnut tannins and short chain fatty acids administered as blends. No differences in animal performances or in meat quality were found among feeding groups. The results suggested that the mix of these supplements did not have negative effects on the productive performances, representing a promising alternative to antibiotics. However, further investigation is needed to better understand the effects of these supplements on animals in stress conditions. Abstract Chestnut tannins (CT) and saturated short medium chain fatty acids (SMCFA) are valid alternatives to contrast the growth of pathogens in poultry rearing, representing a valid alternative to antibiotics. However, the effect of their blends has never been tested. Two blends of CT extract and Sn1-monoglycerides of SMCFA (SN1) were tested in vitro against the proliferation of Clostridium perfringens, Salmonella typhymurium, Escherichia coli, Campylobacter jejuni. The tested concentrations were: 3.0 g/kg of CT; 3.0 g/kg of SN1; 2.0 g/kg of CT and 1.0 g/kg of SN1; 1.0 g/kg of CT and 2.0 g/kg of SN1. Furthermore, their effect on broiler performances and meat quality was evaluated in vivo: one-hundred Ross 308 male birds were fed a basal diet with no supplement (control group) or supplemented with CT or SN1 or their blends at the same concentration used in the in vitro trial. The in vitro assay confirmed the effectiveness of the CT and SN1 mixtures in reducing the growth of the tested bacteria while the in vivo trial showed that broiler performances, animal welfare and meat quality were not negatively affected by the blends, which could be a promising alternative in replacing antibiotics in poultry production.
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Affiliation(s)
- Federica Mannelli
- Dipartimento di Scienze e Tecnologie Agrarie, Alimentari, Ambientali e Forestali, University of Florence, Piazzale delle Cascine 18, 20144 Firenze, Italy.
| | - Sara Minieri
- Dipartimento di Scienze Veterinarie, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy.
| | - Giovanni Tosi
- Istituto zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna-Sezione di Forlì, via don Eugenio Servadei 3/E-3/F, 47122 Forlì, Italy.
| | - Giulia Secci
- Dipartimento di Scienze e Tecnologie Agrarie, Alimentari, Ambientali e Forestali, University of Florence, Piazzale delle Cascine 18, 20144 Firenze, Italy.
| | - Matteo Daghio
- Dipartimento di Scienze e Tecnologie Agrarie, Alimentari, Ambientali e Forestali, University of Florence, Piazzale delle Cascine 18, 20144 Firenze, Italy.
| | - Paola Massi
- Istituto zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna-Sezione di Forlì, via don Eugenio Servadei 3/E-3/F, 47122 Forlì, Italy.
| | - Laura Fiorentini
- Istituto zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna-Sezione di Forlì, via don Eugenio Servadei 3/E-3/F, 47122 Forlì, Italy.
| | - Ilaria Galigani
- Dipartimento di Scienze e Tecnologie Agrarie, Alimentari, Ambientali e Forestali, University of Florence, Piazzale delle Cascine 18, 20144 Firenze, Italy.
| | - Silvano Lancini
- Dipartimento di Scienze e Tecnologie Agrarie, Alimentari, Ambientali e Forestali, University of Florence, Piazzale delle Cascine 18, 20144 Firenze, Italy.
| | - Stefano Rapaccini
- Dipartimento di Scienze e Tecnologie Agrarie, Alimentari, Ambientali e Forestali, University of Florence, Piazzale delle Cascine 18, 20144 Firenze, Italy.
| | | | - Simone Mancini
- Dipartimento di Scienze Veterinarie, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy.
| | - Arianna Buccioni
- Dipartimento di Scienze e Tecnologie Agrarie, Alimentari, Ambientali e Forestali, University of Florence, Piazzale delle Cascine 18, 20144 Firenze, Italy.
- Centro Interdipartimentale di Ricerca per la Valorizzazione degli Alimenti, Largo Brambilla, 3, 50134 Firenze, Italy.
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