Supplementing entire male pig diet with hydrolysable tannins: Effect on carcass traits, meat quality and oxidative stability

Rezar, Vida; Salobir, Janez; Levart, Alenka; Tomažin, Urška; Škrlep, Martin; Batorek-Lukač, Nina; Čandek-Potokar, Marjeta

doi:10.1016/j.meatsci.2017.06.012

Cited by 24 publications

(22 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We also hypothesized that dietary inclusion of CWE up to 1,000 mg/kg does not affect the overall meat quality in broilers, which may probably be the lowest level of supplementation in diets. Similar to our finding, dietary supplementation of sweet chestnut tannins had no effects on meat color in pigs ( Rezar et al., 2017 ).…”

Section: Discussionsupporting

confidence: 91%

“…Furthermore, chestnut tannins could improve intestinal morphology, cytokine expression, and antioxidant activities in broilers ( Liu et al., 2018 ). Dietary supplementation of chestnut wood extract (CWE) as hydrolysable tannins could reduce carcass fat deposition and water-holding capacity of meat and increase polyunsaturated fatty acids in fat tissues of pigs ( Rezar et al., 2017 ). Moreover, hydrolysable tannic acid is commonly used in monogastric animals as a natural source of antioxidants ( Biagi et al., 2010 ; Starčević et al., 2015 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of chestnut wood extract on performance, meat quality, antioxidant status, immune function, and cholesterol metabolism in broilers

Liu

Mahfuz

et al. 2020

Poultry Science

View full text Add to dashboard Cite

Plant extracts have been proved as natural antioxidants resources as well as alternative feed additives in livestock and poultry species. Chestnut wood extract ( CWE ) as a source of hydrolysable tannic acid was used to evaluate the growth performance, nutrient retention, meat quality, antioxidant status, and immune function of broilers. A total of 168, day-old Arbor Acre male broilers (weight 46.59 ± 0.44 g) were randomly divided to 3 treatments, 7 replicate pens per treatment, 8 broilers per pen. The treatments contain a control diet, CON (corn-soybean meal basal diet); an antibiotic diet, CTC (basal diet + 75 mg/kg chlortetracycline); and chestnut wood extract diet, CWE (basal diet + 1,000 mg/kg chestnut tannins). At the finisher phase, final body weight was higher ( P < 0.05) in CWE supplemented diet than in CON. Average daily body weight gain was higher ( P < 0.05) and feed gain ratio was lower ( P < 0.05) in broilers fed CWE than in those fed CON at the finisher phase. Crude protein digestibility was higher ( P < 0.05) in broilers offered CWE than that in broilers fed CON and CTC diets. Breast muscle pH value at 24 h (pH 24 h ) was higher ( P < 0.05) in broilers fed CWE than that in those fed CON and CTC diets. The bursa weight was higher ( P < 0.05) in broilers offered CWE than that in those fed CON and CTC. Total antioxidant capacity (T-AOC), glutathione peroxidase (GSH-Px), and superoxide dismutase (SOD) values were higher ( P < 0.05) in both breast muscle and thigh muscle of broilers offered CWE supplemented diet than those in broilers fed CON and CTC diets. Similarly, broilers offered with CWE diets showed higher ( P < 0.05) T-AOC, GSH-PX, and SOD value in serum than those fed CON and CTC diets. Serum concentration of IgG was higher ( P < 0.05) in broilers offered with CWE diets than that in those fed CON and CTC diets. Total cholesterol, low-density lipoprotein cholesterol, and urea-N concentration were lower ( P < 0.05) in broilers offered CWE diet than those in broilers fed CON and CTC diets. It was recommended to supply CWE at the 1,000 mg/kg level for improving antioxidant status, cholesterol metabolism, and growth performance without affecting normal meat quality in broilers.

show abstract

Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Effect of chestnut wood extract on performance, meat quality, antioxidant status, immune function, and cholesterol metabolism in broilers

Liu

Mahfuz

et al. 2020

Poultry Science

View full text Add to dashboard Cite

show abstract

“…The differences in the fatty acid profile of the adipose tissue were related to the dietary fat source, but not the chestnut extract supplementation. In contrast, Rezar et al [27] observed greater PUFA levels in the subcutaneous fat of EM pigs fed a diet supplemented with 3% sweet chestnut wood extract. As explained by the authors, this effect was rather an indirect than direct effect of dietary sweet chestnut wood extract supplementation, as the supplement reduced the carcass fat deposition, resulting in a greater percentage of PUFA in the fat tissue.…”

Section: Dietary Effects On the Fatty Acid Profile Of The Adipose Tissuementioning

confidence: 84%

“…The Swiss cantonal Committee for Animal Care and Use approved all the procedures involving animals (27,428).…”

Section: Animals and Dietsmentioning

confidence: 99%

Effect of Supplementing Hydrolysable Tannins to a Grower–Finisher Diet Containing Divergent PUFA Levels on Growth Performance, Boar Taint Levels in Back Fat and Intestinal Microbiota of Entire Males

Tretola

Maghin

Silacci

et al. 2019

Animals

View full text Add to dashboard Cite

A retrospective data analysis suggested that the levels of boar taint compounds depend on the polyunsaturated fatty acid (PUFA) level of the adipose tissue (AT) being significantly greater in the unsaturated AT. In addition, we recently reported that hydrolysable tannins (HTs) offered to entire males (EMs) reduce skatole and, to a greater extent, indole levels in the AT. Thus, the objective of the study was to determine the impact of HTs and a high dietary level of PUFA on growth performance and board taint compounds in EMs. In addition, the interaction between PUFA and HTs on gut microbiota and its link to intestinal skatole and indole production was investigated. At 25 kg BW, 44 EM originating from 11 litters were randomly assigned within litter to four dietary treatments. Two basal grower (25–60 kg BW) and finisher (60–105 kg BW) diets containing either 2% soy oil (H = high PUFA level) or 2% tallow (L = low PUFA level) were formulated. The H and L diets were either supplemented (H+/L+) or not (H−/L−) with 3% chestnut extract containing 50% HTs. The pigs had ad libitum access to the diets and were slaughtered at 170 days of age. The microbiota composition was investigated through the 16S rRNA gene sequences obtained by next-generation sequencing (Illumia MiSeq platform, San Diego, CA, USA) and analyzed with a specific packages in R, version 3.5.0. Regardless of the PUFA content, the EMs fed the H+ diets were 2% (p < 0.01) less feed efficient overall. This was due to the slower (p = 0.01) growth in the finisher period despite similar feed intake. Carcass characteristics were not affected by the diets. Regardless of HT feeding, the PUFA level in the AT of the H pigs was 10% greater (p = 0.05) than in the L pigs. The indole level tended (p = 0.08) to be 50% lower in the H+ group. Surprisingly, the pigs that were fed diet H− had greater skatole levels than those fed diet L−, with intermediate skatole levels in the H+ and L+. Independent of the PUFA level, the HTs decreased bacteria abundance and qualitatively affected the microbiota composition. In conclusion, these data do not confirm that boar taint compound levels were related to PUFA levels in the AT. However, HTs can be considered to be a promising alternative to conventional antibacterial additives, with no detrimental effects on pig gut health and with appealing properties for reducing the synthesis of the main components of boar taint.

show abstract

“…Several researchers have shown that dietary supplementation can affect meat color, flavor, and oxidative stability (Rezar et al, 2017;Rossi et al, 2013;Schwarz et al, 2016). Poor feed structure can make organism excessive oxidation and speed up the aging of cashmere goats.…”

mentioning

confidence: 99%

Effects of Astragalus Membranaceus supplementation on oxidative stability of Cashmere goat

Luo

et al. 2020

Food Science & Nutrition

View full text Add to dashboard Cite

In livestock production, astragalus membranaceus (traditional Chinese herbal medicine) can improve its growth performance and antioxidant capacity, working as antioxidants to scavenge free radicals, and enhance the body's immunity and disease resistance. The advantages of Astragalus have no residue and side effects. In the previous studies, as a feed additive, the improvement of antioxidant capacity and meat quality of astragalus membranaceus are more common in pigs, chickens, geese, etc. But their application in goats has rarely been reported. Inner Mongolia Cashmere goats are excellent variety, which can offer cashmere and meat. Now, the research on Cashmere goat is mainly focused on cashmere performance, rumen metabolism, and

show abstract

Supplementing entire male pig diet with hydrolysable tannins: Effect on carcass traits, meat quality and oxidative stability

Cited by 24 publications

References 50 publications

Effect of chestnut wood extract on performance, meat quality, antioxidant status, immune function, and cholesterol metabolism in broilers

Effect of chestnut wood extract on performance, meat quality, antioxidant status, immune function, and cholesterol metabolism in broilers

Effect of Supplementing Hydrolysable Tannins to a Grower–Finisher Diet Containing Divergent PUFA Levels on Growth Performance, Boar Taint Levels in Back Fat and Intestinal Microbiota of Entire Males

Effects of Astragalus Membranaceus supplementation on oxidative stability of Cashmere goat

Contact Info

Product

Resources

About