Propionic acid bacteria enhance ruminal feed degradation and reduce methane production <i>in vitro</i>

Chen, Jikun; Harstad, Odd Magne; McAllister, Tim A.; Dörsch, Peter; Holo, Helge

doi:10.1080/09064702.2020.1737215

Cited by 33 publications

(28 citation statements)

References 34 publications

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“…Introducing propionate-producing bacteria has been evaluated as a possible solution because propionate production consumes H 2 as a reducing equivalent and, thereby, competes with methanogenesis (Ungerfeld 2013). This has not been effective with all strains of bacteria but Propionibacterium thoenii T159 reduced CH 4 production by 20% and increased VFA production by 21% in a study that screened 31 different strains within in vitro models (Chen et al 2020). However, in lactating primiparous cows, P. freudenreichii 53-W was shown to increase CH 4 production by 27% (Jeyanathan et al 2019).…”

Section: Probioticsmentioning

confidence: 99%

Feed additives as a strategic approach to reduce enteric methane production in cattle: modes of action, effectiveness and safety

et al. 2021

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Increasing consumer concern in greenhouse-gas (GHG) contributions from cattle is pushing the livestock industry to continue to improve their sustainability goals. As populations increase, particularly in low-income countries, the demand for animal-sourced foods will place further pressure to reduce emission intensity. Enteric methane (CH 4 ) production contributes to most of the GHG from livestock; therefore, it is key to mitigating such emissions. Feed additives have primarily been used to increase animal productivity, but advances in understanding the rumen has resulted in their development to mitigate CH 4 emissions. The present study reviewed some of the main feed additives with a potential to reduce enteric CH 4 emissions, focusing on in vivo studies. Feed additives work by either inhibiting methanogenesis or modifying the rumen environment, such that CH 4 production (g/day) is reduced. Feed additives that inhibit methanogenesis or compete with substrate for methanogens include 3-nitroxypropanol (3NOP), nitrates, and halogenated compounds containing organisms such as macroalgae. Although 3NOP and macroalgae affect methyl-coenzyme M reductase enzyme that is necessary in CH 4 biosynthesis, the former is more specific to methanogens. In contrast, nitrates reduce CH 4 emissions by competing with methanogens for hydrogen. However, nitrite could accumulate in blood and be toxic to ruminants. Rumen modifiers do not act directly on methanogens but rather on the conditions that promote methanogenesis. These feed additives include lipids, plant secondary compounds and essential oils. The efficacy of lipids has been studied extensively, and although supplementation with mediumchain and polyunsaturated fatty acids has shown substantial reduction in enteric CH 4 production, the results have been variable. Similarly, secondary plant compounds and essential oils have shown inconsistent results, ranging from substantial reduction to modest increase in enteric CH 4 emissions. Due to continued interest in this area, research is expected to accelerate in developing feed additives that can provide options in mitigating enteric CH 4 emissions.

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Section: Probioticsmentioning

confidence: 99%

Feed additives as a strategic approach to reduce enteric methane production in cattle: modes of action, effectiveness and safety

et al. 2021

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“…Propionic acid has prebiotic properties which stimulate the development of normal intestinal microflora (Radzikowski, 2018). The rumen microflora is a crucial in ruminant digestion as well as propionate fermentation in ruminants might lower methane emissions (Matthews et al, 2018;Chen et al, 2020).…”

Section: Rural Sustainability Research 44(339) 2020mentioning

confidence: 99%

The Novel Solution for Acid Whey Permeate Application in Animal Feeding

Lakstina

Aboltina²,

Vanaga

et al. 2020

Rural Sustainability Research

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The experiment was conducted to analyse the effect of fermented acid whey permeate on milk yield and composition in the lactating cows. Propionic acid bacteria and their metabolites have been used in the lactating cows feeding over decades, primarily to improve growth performance, feed conversation and milk production efficiency. Two groups of the lactating cows were arranged in the study: control group (n=50) and experimental group (n=50). Experimental group’s animals received 0.5 L of fermented whey permeate daily. Acid whey permeate was inoculated with the freeze-dried PS-4 (Propionibacterium freudenreichii subsp. shermanii, Chr.Hansen, Denmark) starter and fermented anaerobically for 48 hours at 20±2 oC. Fat, protein, lactose and total solids concentration in acid whey permeate and fermented acid whey permeate was analysed by the standard methods, but propionic acid was detected by HPLC. Milk composition and quality indices were determined at the beginning of the study and each month during 6 months period. At the end of the study the feeding of fermented acid whey permeate was stopped, but milk composition and quality data were monitored additionally after one month. Milk fat, protein, lactose, total solids, urea concentration and somatic cell count were analysed by a near infrared spectroscopy.The variability in milk composition and quality data across trial was greater in the experiment group than in the control. Milk fat and somatic cell count were significantly different (p<0.05) than other studied parameters in the experimental group cows’ milk. Milk yield and lactose concentration were tended to increase during feeding of fermented acid whey permeate in the lactating cows without significant differences between control and experimental groups. Fermented acid whey permeate as feed supplement improves energy metabolism for dairy cows which results in the higher milk yield and fat concentration.

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“…The rumen microbial community predominantly consists of bacteria, in addition to fungi, protozoa, and a small number of phages (Miller et al, 2012), with each microorganism in a dynamic balance of competition and coordination. Several studies have shown that rumen microorganisms are closely linked to the ruminant livestock production efficiency and provide the host with as much as 65-75% of its energy requirement through anaerobic fermentation (Jewell et al, 2015;Chen et al, 2020). The rumen microbial community structure is affected by factors such as host type, health, and diet, and consequently, it varies across different regions and seasons (Yáñez-Ruiz et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Selenium Yeast Dietary Supplement Affects Rumen Bacterial Population Dynamics and Fermentation Parameters of Tibetan Sheep (Ovis aries) in Alpine Meadow

et al. 2021

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Selenium (Se) deficiency is a widespread and seasonally chronic phenomenon observed in Tibetan sheep (Ovis aries) traditionally grazed on the Qinghai–Tibet Plateau (QTP). Effects of the dietary addition of Se-enriched yeast (SeY) on the bacterial community in sheep rumen and rumen fermentation were evaluated with the aim of gaining a better understanding of the rumen prokaryotic community. Twenty-four yearling Tibetan rams [initial average body weight (BW) of 31.0 ± 0.64 kg] were randomly divided into four treatment groups, namely, control (CK), low Se (L), medium Se (M), and high Se (H). Each group comprised six rams and was fed a basic diet of fresh forage cut from the alpine meadow, to which SeY was added at prescribed dose rates. This feed trial was conducted for over 35 days. On the final day, rumen fluid was collected using a transesophageal sampler for analyzing rumen pH, NH3-N content, volatile fatty acid (VFA) level, and the rumen microbial community. Our analyses showed that NH3-N, total VFA, and propionate concentrations in the M group were significantly higher than in the other groups (P < 0.05). Both the principal coordinates analysis (PCoA) and the analysis of similarities revealed that the bacterial population structure of rumen differed among the four groups. The predominant rumen bacterial phyla were found to be Bacteroidetes and Firmicutes, and the three dominant genera in all the samples across all treatments were Christensenellaceae R7 group, Rikenellaceae RC9 gut group, and Prevotella 1. The relative abundances of Prevotella 1, Rikenellaceae RC9 gut group, Ruminococcus 2, Lachnospiraceae XPB1014 group, Carnobacterium, and Hafnia-Obesumbacterium were found to differ significantly among the four treatment groups (P < 0.05). Moreover, Tax4fun metagenome estimation revealed that gene functions and metabolic pathways associated with carbohydrate and other amino acids were overexpressed in the rumen microbiota of SeY-supplemented sheep. To conclude, SeY significantly affects the abundance of rumen bacteria and ultimately affects the rumen microbial fermentation.

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Propionic acid bacteria enhance ruminal feed degradation and reduce methane production in vitro

Cited by 33 publications

References 34 publications

Feed additives as a strategic approach to reduce enteric methane production in cattle: modes of action, effectiveness and safety

Feed additives as a strategic approach to reduce enteric methane production in cattle: modes of action, effectiveness and safety

The Novel Solution for Acid Whey Permeate Application in Animal Feeding

Selenium Yeast Dietary Supplement Affects Rumen Bacterial Population Dynamics and Fermentation Parameters of Tibetan Sheep (Ovis aries) in Alpine Meadow

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