Effects of Acacia mearnsii extract as a condensed-tannin source on animal performance, carcass yield and meat quality in goats

Pimentel, Paulo Roberto Silveira; Pellegrini, Caius Barcellos de; Lanna, Dante Pazzanese Duarte; Brant, Lara Maria Santos; Ribeiro, Cláudio Vaz Di Mambro; Silva, Thadeu Mariniello; Barbosa, Analívia Martins; Júnior, Jarbas Miguel da Silva; Bezerra, Leílson Rocha; Oliveira, Ronaldo Lopes

doi:10.1016/j.anifeedsci.2020.114733

Cited by 17 publications

(14 citation statements)

References 66 publications

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“…It has been suggested that high doses of TANs in the diet (>55 g kg −1 DM) may have negative effects on feed utilization efficiency and growth rate of ruminants; however, low-moderate levels (20 to 40 g kg −1 DM) could result in neutral or even positive effects [ 9 , 12 ]. In this regard, a meta-analysis conducted by Orzuna-Orzuna et al [ 32 ] reported that dietary supplementation with TANs at average doses of 14.61 g kg −1 DM did not affect DWG or feed efficiency in beef cattle.…”

Section: Discussionmentioning

confidence: 99%

“…The lower FCR observed could be explained because TANs supplementation reduces infection by gastrointestinal nematodes, which decrease feed efficiency in livestock [ 1 ]. According to Pimentel et al [ 12 ], dietary inclusion of TANs in moderate doses can increase the efficiency of nutrient utilization of the diet, due to the ability of TANs to form complexes with macromolecules. In addition, the presence of TANs in diets consumed by ruminants has been reported to reduce enteric methane production [ 32 ], increase duodenal flux of amino acids and microbial protein [ 51 ], and reduce energy losses due to urea excretion [ 32 , 52 ].…”

Section: Discussionmentioning

confidence: 99%

“…Although some review articles have suggested that the presence of TANs in the diet may negatively affect DMI in ruminants [ 1 , 9 , 57 ], in the present meta-analysis no changes in DMI were observed in response to dietary supplementation with TANs. This absence of changes in DMI probably occurred because the average dose of TANs used was 19.29 g kg −1 DM and negative effects of TANs on intake seem to occur with doses higher than 50 g kg −1 DM [ 4 , 9 , 12 ]. Similar to our results, two previously elaborated meta-analyses reported that dietary supplementation with TANs at average concentrations of 9.5 and 14.61 g kg −1 DM did not significantly affect DMI of dairy cows in production and beef cattle, respectively [ 31 , 32 ].…”

Section: Discussionmentioning

confidence: 99%

“…Dietary inclusion of TANs at low to moderate concentrations (20 to 45 g kg −1 DM) can improve growth rate and feed utilization efficiency in ruminants, mainly due to a reduction in protein degradation in the rumen and a subsequent increase in the flow of amino acids to the small intestine [ 9 , 10 , 11 ]. However, large amounts (>55 g kg −1 DM) of TANs in the diet reduce feed intake, rumen microbial activity, nutrient digestibility and endogenous digestive enzyme activity [ 1 , 9 , 10 , 12 ], resulting in lower feed efficiency and growth rate.…”

Section: Introductionmentioning

confidence: 99%

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Growth Performance, Meat Quality and Antioxidant Status of Sheep Supplemented with Tannins: A Meta-Analysis

Orzuna-Orzuna

Dorantes-Iturbide

Bueno

et al. 2021

Animals

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The objective of this study was to evaluate the effects of dietary supplementation with tannins (TANs) on productive performance, carcass characteristics, meat quality, oxidative stability, and blood serum antioxidant capacity of sheep through a meta-analysis. Using Scopus, Web of Science, ScienceDirect, and PubMed databases, a systematic search was performed for studies published in scientific journals that investigated the effects of TANs supplementation on the variables of interest. Only studies with weaned or older sheep were included. The data analyzed were extracted from 53 peer-reviewed publications. The sheep included in the present study were between 2 and 6 months old, and between 12 and 31 kg of body weight. The effects of TANs were analyzed using random-effects statistical models to examine the standardized mean difference (SMD) between treatments with TANs and control (no TANs). Heterogeneity was explored by meta-regression and a subgroup analysis was performed for covariates that were significant. Supplementation with TANs did not affect dry matter intake, pH, color (L* and b*), Warner–Bratzler shear force, cooking loss and meat chemical composition (p > 0.05). Supplementation with TANs increased daily weight gain (SMD = 0.274, p < 0.05), total antioxidant capacity (SMD = 1.120, p < 0.001), glutathione peroxidase enzyme activity (SMD = 0.801, p < 0.001) and catalase (SMD = 0.848, p < 0.001), and decreased malondialdehyde (MDA) concentration in blood serum (SMD = −0.535, p < 0.05). Supplementation with TANs decreased feed conversion rate (SMD = −0.246, p < 0.05), and the concentration of MDA (SMD = −2.020, p < 0.001) and metmyoglobin (SMD = −0.482, p < 0.05) in meat. However, meat redness (SMD = 0.365), hot carcass yield (SMD = 0.234), cold carcass yield (SMD = 0.510), backfat thickness (SMD = 0.565) and the Longissimus dorsi muscle area (SMD = 0.413) increased in response to TANs supplementation (p < 0.05). In conclusion, the addition of tannins in sheep diets improves productive performance, antioxidant status in blood serum, oxidative stability of meat and some other characteristics related to meat and carcass quality.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Growth Performance, Meat Quality and Antioxidant Status of Sheep Supplemented with Tannins: A Meta-Analysis

Orzuna-Orzuna

Dorantes-Iturbide

Bueno

et al. 2021

Animals

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“…The sensory attributes of kid meat were assessed according to the procedures described by Pimentel et al [32]. The Longissimus lumborum muscle from the left half carcass of each animal was roasted in a pre-heated oven (170 • C) until the meat temperature was 71 • C at the geometric center of the cut, as recorded by a thermocouple (Hanna Instruments, Villafranca Padovana, PD, Italy).…”

Section: Sensorial Analysismentioning

confidence: 99%

Dietary Supplementation with Oregano and Linseed in Autochthonous “Facciuta Lucana” Goats: Effects on Meat Quality Traits in Suckling Kids

Colonna,

Karatosidi,

Cosentino

et al. 2023

Animals

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Extruded linseed (Linum usitatissimum) in ruminant diets has been investigated as a strategy to improve the nutritional value and healthiness of meat fat; however, increased polyunsaturated fatty acids may limit the shelf-life of meat. Oregano (Origanum vulgare) has a documented antioxidant activity. The aim of the study was to investigate the effects of dietary supplementation with extruded linseed and oregano on goat milk quality and whether the characteristics of goat milk affect the physical and chemical features, fatty acid profile, meat lipid oxidation, and sensory properties of meat from suckling kids. Thirty-six male kids were weaned and divided into three homogeneous groups (n = 12); each group was either fed a control diet (C), or a diet containing 3% extruded linseed with or without the addition of 0.6% oregano (“L + O” and “L”, respectively). The diets containing linseed lowered (p < 0.05) the saturated fatty acid content in meat, and increased (p < 0.05) monounsaturated and polyunsaturated fatty acids and conjugated linoleic acid. Oregano addition to the linseed diet proved to be effective in preserving meat shelf-life, as shown by a significant (p < 0.01) reduction in the malondialdehyde concentration after 10 days of storage, and improved meat succulence, tenderness, juiciness, and overall acceptance.

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Goats’ Natural Behaviour

Zobel,

Neave,

Nawroth

2024

Animal Welfare

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Effects of Acacia mearnsii extract as a condensed-tannin source on animal performance, carcass yield and meat quality in goats

Cited by 17 publications

References 66 publications

Growth Performance, Meat Quality and Antioxidant Status of Sheep Supplemented with Tannins: A Meta-Analysis

Growth Performance, Meat Quality and Antioxidant Status of Sheep Supplemented with Tannins: A Meta-Analysis

Dietary Supplementation with Oregano and Linseed in Autochthonous “Facciuta Lucana” Goats: Effects on Meat Quality Traits in Suckling Kids

Goats’ Natural Behaviour

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