Respostas na fisiologia da digestão ruminal ao uso de taninos na alimentação de ruminantes

Tontini, Jalise Fabíola; Silva, Joseane Anjos da; Farias, Mariana de Souza; Poli, César Henrique Espírito Candal

doi:10.31533/pubvet.v15n03a780.1-14

Cited by 6 publications

(3 citation statements)

References 49 publications

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“…Therefore, the improvement in apparent digestibility of the diet in animals receiving TAN and EO suggests an effect of their mechanisms of action, which is to modulate bacterial flora and rumen fermentation, making the rumen more efficient. These findings should be considered positive, as tannins, for example, are considered antinutritional factors and are responsible for reducing carbohydrate digestibility, which impairs animal performance (Morales & Ungerfeld, 2015;Tontini et al, 2021).…”

Section: Resultsmentioning

confidence: 99%

Associative effect of essential oils, tannins, and sodium monensin on the performance of steers finished in feedlot

Neumann

Pontarolo²,

Souza³

et al. 2022

Semina: Ciênc. Agrár.

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The objective was to evaluate the productive performance, ingestive behavior, apparent digestibility of the diet and carcass traits of beef steers finished in feedlot under the effect of including tannins and essential oils (TAN+EO) alone or combined with sodium monensin (MO) in the feed. For this purpose, 30 ½ blood Angus steers from the same herd, with an average age of 12 months and an average initial body weight of 367.8 kg were used. The experimental design was randomized blocks, consisting of three treatments: MO - diet with sodium monensin (25 mg kg DM-1); TAN+EO - diet with tannins and essential oils (1.5 g kg DM-1); and MO+TAN+EO - diet with sodium monensin + tannins and essential oils (25 mg kg DM-1 + 1.5 g kg DM-1), with five repetitions, where each repetition was represented by a stall with two animals. Diets were formulated and consisted of a mixture of 40% corn silage and 60% concentrate, which was fed to the animals twice a day, at 06h00 am and 05h30 pm. There was no difference (P>0.05) in average daily weight gain of animals between treatments, with an average of 1.392 kg day-1. Carcass yield was higher for animals that received the compound of essential oils and tannins (55.72%), compared to animals fed the combination of tannins, essential oils and monensin (54.54%) but did not differ from those supplemented with sodium monensin alone (55.58%). Supplementation with essential oils and tannins improved the apparent digestibility of the diet, however, did not promote changes in the ingestive behavior and carcass traits of steers. The combination of essential oils and tannins with sodium monensin did not show a potentiated effect on animal performance, digestibility of DM, digestive and ingestive behavior and carcass traits of feedlot finished steers compared to the combined use of essential oils with tannins.

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Section: Resultsmentioning

confidence: 99%

Associative effect of essential oils, tannins, and sodium monensin on the performance of steers finished in feedlot

Neumann

Pontarolo²,

Souza³

et al. 2022

Semina: Ciênc. Agrár.

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“…In recent years, the study of ruminant nutrition has been based on feeding alternatives focused on the manipulation of the rumen microbiota to improve the efficiency of its metabolism and the animal's productive performance (Patra & Saxena, 2011). In this context, the use of secondary metabolites such as tannins, which are present in plants, is highlighted as a modulating additive of ruminal fermentation (Tontini et al, 2021). Tannins have been widely studied in animal nutrition and production, especially their biological activities and the response of animals to their consumption, which is relevant in modern livestock (Mueller-Harvey, 2006;Waghorn, 2008;Huang et al, 2018).…”

Section: Introductionmentioning

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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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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“…In contrast, the Mimosa tenuiflora hay presents varying concentrations of tannins, ranging from 0.67 g/kg [4] to 1.8 g/kg DM [5]. These tannins can affect the intake and digestibility of dry matter [6], crude protein [7], and carbohydrates [8]. Due to their astringent properties, the presence of tannins can negatively affect water intake.…”

Section: Introductionmentioning

confidence: 99%

Effects of Increasing Levels of Total Tannins on Intake, Digestibility, and Balance of Nitrogen, Water, and Energy in Hair Lambs

Aguiar

Bezerra

Cordão³

et al. 2023

Animals

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This study aims to evaluate the effects of increasing tannin levels from Mimosa tenuiflora hay on the intake, digestibility, and balance of nitrogen (N), water, and energy in hair lambs. Thirty-two Santa Ines lambs, at an average age of 150 days and body weight of 26.75 ± 2.29 kg, were randomly assigned to four treatments in a completely randomized design. The treatments consisted of four diets: a control diet, tannin-free, and three diets with increasing levels of total tannin, 26.2, 52.4, and 78.6 g tannin/kg dry matter (DM). Including the total tannins in the lambs’ diet led to a quadratic increase in the intake of nutrients, N-retention (g/day), water intake, water absorption and retention, energy intake, and energy excretion in feces and gases. However, the digestibility of crude protein, neutral and acid detergent fibers, and total carbohydrates decreased. It was observed that there is a correlation between the variable nutrient digestibility and N-ingested and the N-absorbed, N-urinary, and N-retained. However, the N-excreted in feces did not correlate with any of the variables studied. It is recommended to include 33 g/kg DM of total natural tannins from Mimosa tenuiflora hay in the diet of hair lambs, as it improves intake, energy balance, dietary N, and body water composition while reducing the excretion of N-urinary and gas emissions to the environment.

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Respostas na fisiologia da digestão ruminal ao uso de taninos na alimentação de ruminantes

Cited by 6 publications

References 49 publications

Associative effect of essential oils, tannins, and sodium monensin on the performance of steers finished in feedlot

Associative effect of essential oils, tannins, and sodium monensin on the performance of steers finished in feedlot

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

Effects of Increasing Levels of Total Tannins on Intake, Digestibility, and Balance of Nitrogen, Water, and Energy in Hair Lambs

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