Impact of a tannin extract on digestibility and net flux of metabolites across splanchnic tissues of sheep

Orlandi, Tiago; Stefanello, Simone; Mezzomo, Mariana Patricia; Pozo, Claudio; Kozloski, Gilberto Vilmar

doi:10.1016/j.anifeedsci.2019.114384

Cited by 12 publications

(5 citation statements)

References 29 publications

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“…The consumption of DM in ruminants is affected by the astringency that tannins present and the formation of tannin-protein complexes that are initially generated by the presence of salivary proteins (Costa et al, 2021). However, the reports on the effect of tannins on the consumption of DM are varied and depend largely on the source, types of tannin, and the dose, although it seems that most researchers agree that doses higher than 40 g CT/kg DM -1 negatively affect the intake and digestibility of DM (Gerlach et al, 2018;Mergeduš et al, 2020;Orlandi et al, 2020;Costa et al, 2021). Huang et al (2018) stated that a low to moderate concentration of CTs in the diets (< 50 g/kg of DM -1 ) did not affect the consumption of DM or the digestibility of nutrients.…”

Section: Resultsmentioning

confidence: 99%

“…In the present study, the FW, YHC, and percentage of protein in the meat were higher with a dose of 3.5 g CT/kg DM -1 . Orlandi et al (2020) stated that relatively low doses of tannins in the diet could improve the contribution of metabolizable protein in ruminants. Dentinho et al (2020) reported a positive response in carcass performance, DWG, and feed and protein efficiency from adding 15% Cistus ladanifer extract as a source of CTs per kilogram of soybean.…”

Section: Resultsmentioning

confidence: 99%

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Fattening performance and carcass characteristics of lambs supplemented with condensed tannins from Acacia mearnsii extract

García-Salas¹,

Bárcena-Gama²,

Hernández-Sánchez³

et al. 2023

SA J. An. Sci.

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Tannins are polyphenolic compounds with some beneficial properties for ruminants as they act as antioxidants, antimicrobials, and anthelmintics, which may improve animal performance. However, the results are variable, depending on the type, source, and dose. The objective of this research was to determine the effect on fattening performance and carcass characteristics of lambs supplemented with condensed tannins (CTs) from Acacia mearnsii extract. Thirty-six, three-month-old Dorset x Hampshire cross lambs of 20.8 ± 3.3 kg live weight were used in a completely randomized design with four treatments (n = 9), namely T1: basal diet, 0.0 g CT/kg DM-1; T2: T1 + 1.75 g CT/kg DM-1; T3: T1 + 3.5 g CT/kg DM-1; and T4: T1 + 5.25 g CT/kg DM-1. The daily weight gain was higher in T2 and T3 than in T1. The weight at slaughter and empty weight at slaughter were higher in T2 than in T1. The hot carcass weight was higher in T3 than in T1, but no different from T2 or T4. The hot carcass yield was higher in T3 than in the other treatments. The meat pH at slaughter and 24 hours postmortem was higher in T4 than in T1 and the meat protein percentage was higher in T3 than in T1. The inclusion of CTs from Acacia mearnsii extract in the diet of fattening lambs increased their daily weight gain, yield, and carcass weight.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Fattening performance and carcass characteristics of lambs supplemented with condensed tannins from Acacia mearnsii extract

García-Salas¹,

Bárcena-Gama²,

Hernández-Sánchez³

et al. 2023

SA J. An. Sci.

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“…According to Deaville et al (2010) and Pathak et al (2017), at levels of 50-60 g CT/kg DM, CT are considered beneficial in the diet of small ruminants by forming tannin-protein complexes in the rumen environment, which limits excessive protein degradation in the rumen, causing a greater absorption of amino acids in the small intestine (duodenum), which improves the use of dietary protein and reduces nitrogen excretion (Orlandi et al, 2020), in addition to decreasing the internal parasitic load with positive consequences for animal performance and induce improvements in animal production (Lucena et al, 2018;Frutos et al, 2020). However, there are no studies relating the effect of higher levels of TC (above 60 g/kg DM) on the composition of silages, specifically pornunça silages, on the degradability of nitrogen compounds.…”

Section: Discussionmentioning

confidence: 99%

Condensed tannins extracted from Quebracho affect the fermentation profile, nutritional quality and in vitro gas production of pornunça (Manihot spp.) silages

et al. 2021

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The objective was to evaluate the fermentation profile, in vitro gas production and nutritional quality of pornunça (Manihot spp.) silages containing levels of condensed tannin (CT; 0, 4, 8 and 12% on dry matter (DM) basis), at five opening times (0, 3, 7, 14, 28 and 56 days). A completely randomized design in a 4 × 5 factorial arrangement was adopted, with four replications, totalling 80 experimental silos. The pH and NH3-N analyses were performed at all opening times of the silos. The other analyses were performed only with silages opened at 56 days of storage. There was an interaction effect between CT levels and silo opening times for pH and NH3-N. Tannin levels in pornunça silages after 56 days ensiling increased the pH and DM and reduced crude protein (CP) and neutral detergent fibre (NDF). There was a quadratic effect for NH3-N, acetic acid, butyric acid, gas losses, dry matter recovery (DMR), hemicellulose and acid detergent fibre. Inclusion of 4 and 8% CT in pornunça silage promotes a rapid decline in pH, being within the acceptable limit for adequate fermentation at 3 days of ensiling. Silages with 4% CT establish the pH at 28 days of opening the silos, with reduced NH3-N. Silages with 4% CT present higher concentrations of acetic and butyric acids and greater DMR. Inclusion of CT in pornunça silage after 56 days ensiling increases DM and reduces CP and NDF, directly affecting the in vitro degradability and reducing gas production.

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“…Similarly, the presence of tannin in the diet reduces methane emissions from the rumen, thereby increasing the energy available for growth and production. Orlandi et al [19] reported that 2-5% of tannins in livestock diets are highly beneficial to the development and health of the animal and for environmental safety against greenhouse gas. The mode of action of tannins includes protein binding, which affects the growth of bacteria in the rumen and fermentation.…”

Section: Antibiotics Alternatives 21 Phytogenic Compoundsmentioning

confidence: 99%

Alternatives to the Use of Antibiotics in Animal Production

Ikusika¹,

Haruzivi²,

Mpendulo³

2023

Veterinary Medicine and Science

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There is a growing demand for livestock products and by-products due to an increase in the human population globally. Farmers utilize feed additives and antibiotics to enhance growth and alleviate diseases to meet this increasing demand for meat and meat products. Although antibiotic use as growth promoters (AGPs) in the livestock industry has brought about a positive increase in production, the industry has also been negatively affected by the development of bacteria resistant to antibiotics and the presence of chemical residues in meat and excreta. Due to this, concerns have risen as this poses a health risk. Resistant bacteria can be transmitted to humans by consuming meat from antibiotic-fed animals or environmental spread from animal wastes. Therefore, action is required to curb this issue because it is estimated that the annual losses in GDP and death toll globally could increase because of the continuous use of antibiotics in livestock production. Hence, this review aims to examine natural alternatives that have the potential to replace antibiotics for food safety, health, and environmental reasons. These could bring a satisfactory impact on nutrient absorption for growth together with health-stimulating virtues.

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Impact of a tannin extract on digestibility and net flux of metabolites across splanchnic tissues of sheep

Cited by 12 publications

References 29 publications

Fattening performance and carcass characteristics of lambs supplemented with condensed tannins from Acacia mearnsii extract

Fattening performance and carcass characteristics of lambs supplemented with condensed tannins from Acacia mearnsii extract

Condensed tannins extracted from Quebracho affect the fermentation profile, nutritional quality and in vitro gas production of pornunça (Manihot spp.) silages

Alternatives to the Use of Antibiotics in Animal Production

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