Effects of yeast and yeast cell wall polysaccharides supplementation on beef cattle growth performance, rumen microbial populations and lipopolysaccharides production

Peng, Quanhui; Cheng, Long; Kang, Kun; Tian, Gang; Al-Mamun, Mohammad; Xue, Bai; Wang, Lizhi; Zou, Huawei; Gicheha, Mathew Gitau; Wang, Zhisheng

doi:10.1016/s2095-3119(19)62708-5

Cited by 27 publications

(27 citation statements)

References 33 publications

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“…Vyas et al () reported that an increase in fibre digestibility is normally associated with an increase in fibre degrading bacteria population. This is further supported by the findings from Peng et al () that the fibre degrading bacteria population (e.g. F. succinogenes S85, R. albus 7 and R. flavefaciens FD‐1 ) in the rumen, was ~2 times higher in beef cattle supplemented with live yeast at 2 g per cattle per day compared with the control diet and therefore, increased apparent digestibility of NDF and ADF.…”

Section: Impact Of Feeding Single‐cell Fungi On Rumen Fermentation Acsupporting

confidence: 72%

“…The prolong depression in rumen pH to the point of acidosis causes lesion to the gastrointestinal barrier (Zebeli and Metzler‐Zebeli ; Chang et al ). Interestingly, Peng et al () reported that dietary supplementation of both live yeast and yeast cell wall might promote growth performance of beef cattle through reducing LPS production in the rumen and LPS absorption into plasma and decrease inflammatory parameters and improving other related aspects (Fig. ).…”

Section: Impact Of Feeding Single‐cell Fungi On Rumen Fermentation Acmentioning

confidence: 99%

“…A positive effect of yeast in reducing the severity of SARA irrespective of its viability was observed by (Vyas et al ) and this may also reduce the content of LPS in the rumen. Dietary supplements of both live yeast and yeast cell wall may enhance growth performance of beef cattle by reducing LPS concentrations in the rumen and plasma and improving other related aspects (Peng et al ). Lei et al () showed that dietary supplementation of yeast cell wall at a dose of 2 g kg −1 DM could effectively bind LPS in the digestive tract, reduce the translocation of LPS from the digestive tract into circulation, and thereby improve growth performance in beef cattle.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic role of single‐celled fungi in ruminal microbial ecology and activities

Elghandour

Khusro²,

Adegbeye

et al. 2019

J Appl Microbiol

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Summary In ruminants, high fermentation capacity is necessary to develop more efficient ruminant production systems. Greater level of production depends on the ability of the microbial ecosystem to convert organic matter into precursors of milk and meat. This has led to increased interest by animal nutritionists, biochemists and microbiologists in evaluating different strategies to manipulate the rumen biota to improve animal performance, production efficiency and animal health. One of such strategies is the use of natural feed additives such as single‐celled fungi yeast. The main objectives of using yeasts as natural additives in ruminant diets include; (i) to prevent rumen microflora disorders, (ii) to improve and sustain higher production of milk and meat, (iii) to reduce rumen acidosis and bloat which adversely affect animal health and performance, (iv) to decrease the risk of ruminant‐associated human pathogens and (v) to reduce the excretion of nitrogenous‐based compounds, carbon dioxide and methane. Yeast, a natural feed additive, has the potential to enhance feed degradation by increasing the concentration of volatile fatty acids during fermentation processes. In addition, microbial growth in the rumen is enhanced in the presence of yeast leading to the delivery of a greater amount of microbial protein to the duodenum and high nitrogen retention. Single‐celled fungi yeast has demonstrated its ability to increase fibre digestibility and lower faecal output of organic matter due to improved digestion of organic matter, which subsequently improves animal productivity. Yeast also has the ability to alter the fermentation process in the rumen in a way that reduces methane formation. Furthermore, yeast inclusion in ruminant diets has been reported to decrease toxins absorption such as mycotoxins and promote epithelial cell integrity. This review article provides information on the impact of single‐celled fungi yeast as a feed supplement on ruminal microbiota and its function to improve the health and productive longevity of ruminants.

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Section: Impact Of Feeding Single‐cell Fungi On Rumen Fermentation Acsupporting

confidence: 72%

Section: Impact Of Feeding Single‐cell Fungi On Rumen Fermentation Acmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dynamic role of single‐celled fungi in ruminal microbial ecology and activities

Elghandour

Khusro²,

Adegbeye

et al. 2019

J Appl Microbiol

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“…(2016) Finnish Ayrshire cows F:C was 50:50 Live yeast at 0.5 g/cow per d (10 10 CFU/cow per d) No effects on animal performance and rumen fermentation Bayat et al. (2015) Qinchuan cattle F:C was 55:45 1 and 2 g live yeast or 20 g yeast cell wall polysaccharides/cow per d Higher digestibility of ADF and NDF; increased the population of F. succinogenes S85 , Ruminococcus albus 7 and R. flavefaciens FD-1; decreased the percentage of Streptococcus bovis JB1 Peng et al. (2020) Holstein steers F:C was 50:50 Live yeast at 15 g/d Increased the population of R. albus, R. champanellensis, R. bromii, R. obeum, M. elsdenii, Desulfovibrio desulfuricans , and D. vulgaris Ogunade et al.…”

Section: Influence Of Dietary Yeast Supplementation On Rumen Fermentationmentioning

confidence: 99%

Influence of yeast on rumen fermentation, growth performance and quality of products in ruminants: A review

Amin

Mao

2021

Animal Nutrition

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This review aims to give an overview of the efficacy of yeast supplementation on growth performance, rumen pH, rumen microbiota, and their relationship to meat and milk quality in ruminants. The practice of feeding high grain diets to ruminants in an effort to increase growth rate and weight gain usually results in excess deposition of saturated fatty acids in animal products and increased incidence of rumen acidosis. The supplementation of yeast at the right dose and viability level could counteract the acidotic effects of these high grain diets in the rumen and positively modify the fatty acid composition of animal products. Yeast exerts its actions by competing with lactate-producing ( Streptococcus bovis and Lactobacillus ) bacteria for available sugar and encouraging the growth of lactate-utilising bacteria ( Megasphaera elsdenii ). M. elsdenii is known to convert lactate into butyrate and propionate leading to a decrease in the accumulation of lactate thereby resulting in higher rumen pH. Interestingly, this creates a conducive environment for the proliferation of vaccenic acid-producing bacteria ( Butyrivibrio fibrisolvens ) and ciliate protozoa, both of which have been reported to increase the ruminal concentration of trans -11 and cis -9, trans -11-conjugated linoleic acid (CLA) at a pH range between 5.6 and 6.3. The addition of yeast into the diet of ruminants has also been reported to positively modify rumen biohydrogenation pathway to synthesise more of the beneficial biohydrogenation intermediates ( trans - 11 and cis - 9, trans - 11). This implies that more dietary sources of linoleic acid, linolenic acid, and oleic acid along with beneficial biohydrogenation intermediates ( cis -9, trans -11-CLA, and trans -11) would escape complete biohydrogenation in the rumen to be absorbed into milk and meat. However, further studies are required to substantiate our claim. Therefore, techniques like transcriptomics should be employed to identify the mRNA transcript expression levels of genes like stearoyl-CoA desaturase , fatty acid synthase, and elongase of very long chain fatty acids 6 in the muscle. Different strains of yeast need to be tested at different doses and viability levels on the fatty acid profile of animal products as well as its vaccenic acid and rumenic acid composition.

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“…Although S. bovis was synonymized with S. equinus and is currently recognized as the SBSEC, the name is still commonly used in ruminant livestock research [ 49 , 50 , 51 ]. However, researchers in the area have already recognized the physiological and genetic diversities of bovine-origin S. bovis isolates [ 20 , 21 ] and genetic heterogeneity in SBSEC has been described recently, especially in S. equinus isolates [ 22 ].…”

Section: Discussionmentioning

confidence: 99%

Diversity and Antimicrobial Resistance in the Streptococcus bovis/Streptococcus equinus Complex (SBSEC) Isolated from Korean Domestic Ruminants

et al. 2021

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S. bovis/S. equinus complex (SBSEC) includes lactic acid-producing bacteria considered as the causative agent associated with acute rumen lactic acidosis in intensive ruminants. Considering the limited information on the detailed characteristics and diversity of SBSEC in Korea and the emergence of antimicrobial resistance (AMR), we investigated the diversity of SBSEC from domestic ruminants and verified the presence of antimicrobial resistance genes (ARGs) against several antimicrobials with their phenotypic resistance. Among 51 SBSEC isolates collected, two SBSEC members (S. equinus and S. lutetiensis) were identified; sodA-based phylogenetic analyses and comparisons of overall genome relatedness revealed potential plasticity and diversity. The AMR rates of these SBSEC against erythromycin, clindamycin, and tetracycline were relatively lower than those of other SBSEC isolates of a clinical origin. An investigation of the ARGs against those antimicrobials indicated that tetracycline resistance of SBSECs generally correlated with the presence of tet(M)-possessing Tn916-like transposon. However, no correlation between the presence of ARGs and phenotypic resistance to erythromycin and clindamycin was observed. Although a limited number of animals and their SBSEC isolates were examined, this study provides insights into the potential intraspecies biodiversity of ruminant-origin SBSEC and the current status on antimicrobial resistance of the bacteria in the Korean livestock industry.

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Effects of yeast and yeast cell wall polysaccharides supplementation on beef cattle growth performance, rumen microbial populations and lipopolysaccharides production

Cited by 27 publications

References 33 publications

Dynamic role of single‐celled fungi in ruminal microbial ecology and activities

Dynamic role of single‐celled fungi in ruminal microbial ecology and activities

Influence of yeast on rumen fermentation, growth performance and quality of products in ruminants: A review

Diversity and Antimicrobial Resistance in the Streptococcus bovis/Streptococcus equinus Complex (SBSEC) Isolated from Korean Domestic Ruminants

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