Thyme and cinnamon essential oils: Potential alternatives for monensin as a rumen modifier in beef production systems

Khorrami, Behzad; Vakili, Alireza; Mesgaran, M. Danesh; Klevenhusen, Fenja

doi:10.1016/j.anifeedsci.2014.11.009

Cited by 66 publications

(73 citation statements)

References 41 publications

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“…(2012) observed that incubations of 5 to 8 µM of monensin in a substrate with 70% forage reduced the A:P ratio. This decrease of A:P ratio was also observed in an in vivo study that administered 33 mg/kg of monensin to Holstein steers (KHORRAMI et al, 2015). However, in another in vivo study, monensin was given to 4 lactating cows at a dose of 350 mg/kg and the ratio A:P was not affected (BENCHAAR et al, 2006 , 1997).…”

Section: Scfa Concentrationssupporting

confidence: 56%

Dose-response effect of crude extracts produced by actinobacteria on in vitro rumen fermentation

Martins¹,

Arcari²,

Peti³

et al. 2018

Braz. J. Vet. Res. Anim. Sci.

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Actinobacteria have been researched as a source that produces crude extracts, which contain bioactive compounds able to act as antimicrobial agents. The present investigation evaluated the dose-response effect of two crude extracts, obtained at Caatinga rhizosphere (Caat) and Rhizophora mangle (AMC), on in vitro ruminal fermentation by: cumulative gas production, digestibility of dry (IVDMD) and organic matter (IVOMD), and short-chain fatty acids concentration (SCFA). Three multiparous Holstein dairy cows with ruminal fistula were used as the inoculum donors and fed a basal diet consisting of corn silage, soybean meal, urea, ground corn and mineral supplement. Ruminal fluid samples were incubated in glass bottles with 1 g of the dried and milled diet, a buffer solution, and the crude extracts evaluated in four doses (0.3, 0.6, 0.9 and 1.20 mg/10 mL inoculum) in a randomized block design, and the donators were considered as blocks with random effects. Additionally, negative controls were used. The results were expressed as average values based on triplicate analyses. Decreased cumulative gas production was observed according to linear dose response at 24, 48 and 72 h of incubation with the addition of Caat extract. The IVOMD showed a linear decrease at 72 h of incubation with dose Caat inclusion. Furthermore, the inclusion of Caat extract linearly reduced butyric and isovaleric acid concentrations, as well as acetate:propionate ratio. Finally, the Caat inclusion increased the propionic acid concentration in comparison to AMC extract. However, the inclusion of AMC extract did not affect any of the analyzed variables at the used doses. The Caat extract could be used as a modulator of in vitro ruminal fermentation, since it reduced acetate:propionate ratio and cumulative gas production. ResumoAs actinobactérias têm sido pesquisadas como fonte produtoras de extratos brutos que contêm compostos bioativos capazes de atuar como agentes antimicrobianos. O presente trabalho investigou o efeito dose-resposta de dois extratos brutos, AMC e Caat, na fermentação ruminal in vitro por: produção cumulativa de gás, digestibilidade in vitro da matéria seca (IVDMD) e matéria orgânica (IVOMD) e concentração de ácidos graxos de cadeia curta (SCFA). Três vacas leiteiras da raça Holandesa, multíparas e portadoras de fístula ruminal foram utilizadas como doadoras de inóculo ruminal e foram alimentadas com uma dieta basal composta por silagem de milho, farelo de soja, ureia, milho moído e suplemento mineral. As amostras de inóculo ruminal foram incubadas em garrafas de vidro com 1 g da dieta seca e moída, solução tampão e os extratos brutos avaliados em quatro doses (0,3, 0,6, 0,9 e 1,20 mg/10 mL de inóculo) em delineamento em blocos casualizados, sendo as doadoras consideradas os blocos como efeito aleatório. Além disso, foram utilizados controles negativos para a correção da produção de gás. Os resultados foram expressos como valores médios com base em análises triplicadas. A diminuição da produção cumulativa de gás foi observada de aco...

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Section: Scfa Concentrationssupporting

confidence: 56%

Dose-response effect of crude extracts produced by actinobacteria on in vitro rumen fermentation

Martins¹,

Arcari²,

Peti³

et al. 2018

Braz. J. Vet. Res. Anim. Sci.

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“…Effective substances of garden thyme also affect the antibiotic-resistant microbes [23][24][25][26]; in certain cases, they might replace antibiotics [27][28][29] and might present sound alternative to growth promoters [4,30]. These joint effects improve food safety and sustainability of animal agriculture.…”

Section: Discussionmentioning

confidence: 99%

The in vitro effect of Garden Thyme (Thymus vulgaris L.) extract on Brachyspira hyodysenteriae

Kutasi¹,

Jakab

Jurkovich

et al. 2016

Acta Microbiologica et Immunologica Hungarica

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Filtrates of a water extract of commercially available garden thyme (Thymus vulgaris L.) were used for studying its possible bactericidal effect on Brachyspira hyodysenteriae, the causative agent of swine dysentery, by agar-diffusion technique. Five of the six studied Brachyspira strains have proven to be sensitive and one moderately sensitive in the in vitro tests. It was concluded that water extract of garden thyme possesses inhibitory effects against B. hyodysenteriae. In vivo experiments are needed to check the validity of this conclusion.

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“…The use of natural compounds, such as thyme and cinnamon essential oils have been reported as a good strategy to improve bacterial fermentation in ruminants, representing an alternative to monensin [47]. Besides that, the use of natural bioactive compound in animal diets may even affect consumers, who are currently in search for products that belong to 'cleaner' and 'greener' production systems [48], which avoid the use of drugs and chemicals and cause less injuries to the environment.…”

Section: Animal Feed Industrymentioning

confidence: 99%

Recent patents on the application of bioactive compounds in food: a short review

Lagos

Vargas

Oliveira

et al. 2015

Current Opinion in Food Science

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Thyme and cinnamon essential oils: Potential alternatives for monensin as a rumen modifier in beef production systems

Cited by 66 publications

References 41 publications

Dose-response effect of crude extracts produced by actinobacteria on in vitro rumen fermentation

Dose-response effect of crude extracts produced by actinobacteria on in vitro rumen fermentation

The in vitro effect of Garden Thyme (Thymus vulgaris L.) extract on Brachyspira hyodysenteriae

Recent patents on the application of bioactive compounds in food: a short review

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