Efficacy of chestnut and quebracho wood extracts to control
            <i>Salmonella</i>
            in poultry

Casanova, Natalia A.; Redondo, Leandro M.; Redondo, Enzo A.; Joaquim, Patricia; Dominguez, Johana Elizabeth; Fernández‐Miyakawa, Mariano E.; Chacana, Pablo

doi:10.1111/jam.14948

Cited by 8 publications

(4 citation statements)

References 46 publications

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“…This extract contains condensed tannins that are endowed with hypoglycemic, antioxidant [ 24 ] and bactericidal actions as demonstrated by in vitro studies [ 25 ]. In the same way, Q has an antimicrobial action on some avian viruses [ 26 ] and on salmonellae [ 27 ]. In particular, ENC and Q are probably the most promising tools to replace antibiotics as chicken growth promoters [ 28 ].…”

Section: Discussionmentioning

confidence: 99%

Tannins-Based Extracts: Effects on Gut Chicken Spontaneous Contractility

et al. 2023

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The impossibility of using drugs for the health of farm animals leads to the search for alternative strategies with two purposes: to maintain animal health and safeguard human health. In this perspective, tannins have shown great promises. These phytocomplexes obtained from natural matrices with multiple health properties may be used as a feed supplement in chicken farms. In this work, we studied two tannin-based extracts (from Castanea sativa Mill. wood and from Schinopsis balansae Engl. Quebracho Colorado hardwood) with different chemical compositions on the spontaneous contractility on the isolated intestinal tissues of healthy chicken. The results showed that the chemical composition of the two phytocomplexes influenced the spontaneous intestinal contractility in different ways by regulating the tone and consequent progression of the food bolus. The chemical analysis of the two extracts revealed that Castanea sativa Mill. wood mainly contains hydrolysable tannins, while Schinopsis balansae Engl. hardwood mainly contains condensed tannins. The two phytocomplexes showed different effects towards gastrointestinal smooth muscle contractility, with Castanea sativa Mill. wood providing a better activity profile than Schinopsis balansae Engl. hardwood.

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Section: Discussionmentioning

confidence: 99%

Tannins-Based Extracts: Effects on Gut Chicken Spontaneous Contractility

et al. 2023

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“…In addition, biological activities described before such as astringency, antioxidant [34,39], intestinal microbiota modulation [13] and immunomodulation [36,37], allow animals undergoing an infectious challenge which produces damage on the intestinal mucosa like NE, to recover faster, limiting the negative impacts on productive parameters. Therefore, besides the fact that tannins have significant antimicrobial activities against bacterial pathogens as Salmonella [54] and C. perfringens [10,11], fungi, virus, and protozoa [55,56], other actions on the host physiology seem to be important to explain the in vivo results. The experimental challenge with C. perfringens in an in vivo model of NE corroborated that the blend of tannins added to feed can significantly reduce intestinal lesions.…”

Section: Discussionmentioning

confidence: 99%

Tannins and gut health in broilers: Effects of a blend of chestnut and quebracho tannins on gut health and performance of broiler chickens

Redondo

Bruzzone

et al. 2021

Preprint

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Consumer demands and increased regulations on the use of antimicrobials in farm animals accentuated the need to develop strategies to replace antimicrobial growth promoters (AGPs) in food-producing animals. The present study evaluates the productive and gut health outcomes during the implementation of AGPs free programs based on the inclusion of a tannin blend compared with AGPs based program under commercial conditions. In the first trial, 6 farms were randomly assigned to AGP or tannin-based programs. In a second trial, both programs were applied simultaneously in one farm and the results were studied over 1 year. Although productive results from both trials were similar among treatments, evaluations of gut health indicators show improvements in the tannins treated flocks. Frequency and severity of intestinal gross lesions were reduced in jejunum (42% vs 23%; p<0.05 – 1.37 vs. 0.73; p<0.01, respectively) and ileum (25% vs. 10%; p<0.0.5 – 1.05 vs. 0.58; p<0.01) in tannins treated birds. Results from 16S studies, show that cecal microbiota diversity was not differentially affected by AGPs or tannins, but changes in the relative abundance of certain taxa were described, including Lactobacillus and Bifidobacterium groups. Additional evaluations using an in vivo model for C. perfringens necrotic enteritis showed that tannins treated birds had reduced incidence of gross lesions in jejunum (43.75 vs. 74.19%; p<0.01) and ileum (18.75% vs. 45.16%; p<0.05) compared with control. These results suggest that AGPs can be replaced by tannins feed additives, and contribute in the implementation of antimicrobial-free programs in broilers without affecting health or performance.

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“…Additionally, the effect of chestnut and quebracho wood was evaluated, showing a reduction in both mortality and Salmonella spp. excretion [ 98 ].…”

Section: Salmonella Spp Infectionmentioning

confidence: 99%

The Role of Nutraceuticals and Phytonutrients in Chickens’ Gastrointestinal Diseases

Biagini

Galosi

Roncarati

et al. 2022

Animals

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In poultry, severe gastrointestinal diseases are caused by bacteria and coccidia, with important economic losses in the poultry industry and requirement of treatments which, for years, were based on the use of antibiotics and chemotherapies. Furthermore, Salmonella spp., Clostridium perfringens, and Campylobacter jejuni can cause serious foodborne diseases in people, resulting from consumption of poultry meat, eggs, and derived products. With the spread of antibiotic resistance, which affects both animals and humans, the restriction of antibiotic use in livestock production and the identification of a list of “critically important antimicrobials” became necessary. For this reason, researchers focused on natural compounds and effective alternatives to prevent gastrointestinal disease in poultry. This review summarizes the results of several studies published in the last decade, describing the use of different nutraceutical or phytonutrients in poultry industry. The results of the use of these products are not always encouraging. While some of the alternatives have proven to be very promising, further studies will be needed to verify the efficacy and practical applicability of other compounds.

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Efficacy of chestnut and quebracho wood extracts to control Salmonella in poultry

Cited by 8 publications

References 46 publications

Tannins-Based Extracts: Effects on Gut Chicken Spontaneous Contractility

Tannins-Based Extracts: Effects on Gut Chicken Spontaneous Contractility

Tannins and gut health in broilers: Effects of a blend of chestnut and quebracho tannins on gut health and performance of broiler chickens

The Role of Nutraceuticals and Phytonutrients in Chickens’ Gastrointestinal Diseases

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