Impact of Dietary Supplementation of Different Levels of Thyme and Its Essential Oils on Performance, Blood Parameters, Metabolic and Immune Response of Broiler Chickens

Ismail, F.; El-Gogary, M. R.; El-Morsy, M. N.

doi:10.21608/epsj.2019.35016

Cited by 6 publications

(5 citation statements)

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“…The data in the literature on the effect of essential oils on the biometrics of the gastrointestinal tract of birds is still very controversial. Contrary to the present study, [55] found that quails that received thyme essential oil as a phytogenic additive had a larger intestine length and weight than the control treatment. Çabuk et al [56] reported that the blend of essential oils from Origanum sp., Laurus nobilis L., Salvia triloba L., Myrtus communis, Foeniculum vulgare, and Citrus sp.…”

Section: Discussioncontrasting

confidence: 99%

Diet of Broilers with Essential Oil from Citrus sinensis and Xylopia aromatica Fruits

Christofoli,

da Silva,

da Silva

et al. 2023

Animals

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This study aimed to evaluate the effects of essential oils from the fruits of Citrus sinensis and Xylopia aromatica, included in broiler feed, on blood parameters, the biometrics of digestive organs, bone analyses, and the biochemical profiles of the viscera, as well as the histomorphometry of the small intestine. In this study, 180 one-day-old male chicks of the Cobb 500 strain were fed a corn and soybean meal over three treatments and six replications, and the experimental design was completely randomized. The data were subjected to an analysis of variance and a Tukey test at a 5% significance level. The effect of the experimental diets on performance, blood parameters, biometrics of the digestive organs, bone analysis, and biochemical profiles of the viscera, as well as the histomorphometry of the small intestine, were evaluated. The compounds identified in the essential oil of X. aromatica were sylvestrene, α-pinene, and β-pinene, while in C. sinensis they were limonene and myrcene. The essential oils of C. sinensis and X. aromatica had no significant effect on performance at 14 days. The effects of the presence of the essential oils of C. sinensis and X. aromatica on the response were beneficial: there were reductions in liver lipids, cholesterol, and triglycerides, and in the depths of the crypts in the jejunum of chickens. So, the essential oils from the fruits of C. sinensis and X. aromatica can be used in broiler chickens to improve the lipid profiles of birds without affecting their performance.

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Section: Discussioncontrasting

confidence: 99%

Diet of Broilers with Essential Oil from Citrus sinensis and Xylopia aromatica Fruits

Christofoli,

da Silva,

da Silva

et al. 2023

Animals

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“…Many studies have documented the effects of dietary EOs, individually or in combinations, on the performance of poultry and swine breeding but with varying and conflicting results [33][34][35]. Earlier, Saleh et al [36] reported that dietary supplementation of thyme and ginger oil individually at dose levels up to 300 g/ton did not affect growth or feed efficiency in broiler chicken. In a review, Zeng et al [37] summarized results from 12 trials on broiler chicken involving EOs at dose levels ranging from 75 to 1200 g/ton and observed that, on average, the performance improvement was 3 and 3% for weight gain and feed conversion, respectively, whereas many studies have reported a negative effect of EO on growth or feed efficiency.…”

Section: Discussionmentioning

confidence: 99%

An Immobilized Form of a Blend of Essential Oils Improves the Density of Beneficial Bacteria, in Addition to Suppressing Pathogens in the Gut and Also Improves the Performance of Chicken Breeding

Paul,

Rama Rao,

Chatterjee

et al. 2023

Microorganisms

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Antimicrobial growth promoters (AGP) are used in chicken production to suppress pathogens in the gut and improve performance, but such products tend to suppress beneficial bacteria while favoring the development and spread of antimicrobial resistance. A green alternative to AGP with the ability to suppress pathogens, but with an additional ability to spare beneficial gut bacteria and improve breeding performance is urgently required. We investigated the effect of supplementation of a blend of select essential oils (cinnamon oil, carvacrol, and thyme oil, henceforth referred to as EO; at two doses: 200 g/t and 400 g/t feed) exhibiting an ability to spare Lactobacillus while exhibiting strong E. coli inhibition ability under in vitro tests and immobilized in a sunflower oil and calcium alginate matrix, to broiler chickens and compared the effects with those of a probiotic yeast (Y), an AGP virginiamycin (V), and a negative control (C). qPCR analysis of metagenomic DNA from the gut content of experimental chickens indicated a significantly (p < 0.05) lower density of E. coli in the EO groups as compared to other groups. Amplicon sequence data of the gut microbiome indicated that all the additives had specific significant effects (DESeq2) on the gut microbiome, such as enrichment of uncultured Clostridia in the V and Y groups and uncultured Ruminococcaceae in the EO groups, as compared to the control. LEfSe analysis of the sequence data indicated a high abundance of beneficial bacteria Ruminococcaceae in the EO groups, Faecalibacterium in the Y group, and Blautia in the V group. Supplementation of the immobilized EO at the dose rate of 400 g/ton feed improved body weight gain (by 64 g/bird), feed efficiency (by 5 points), and cellular immunity (skin thickness response to phytoheamagglutinin lectin from Phaseolus vulgaris by 58%) significantly (p < 0.05), whereas neither yeast nor virginiamycin showed a significant effect on performance parameters. Expression of genes associated with gut barrier and immunity function such as CLAUDIN1, IL6, IFNG, TLR2A, and NOD1 were significantly higher in the EO groups. This study showed that the encapsulated EO mixture can improve the density of beneficial microbes in the gut significantly, with concomitant suppression of potential pathogens such as E.coli and improved performance and immunity, and hence, has a high potential to be used as an effective alternative to AGP in poultry.

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“…40 However, previous studies on broilers have shown that serum urea was not affected by thyme essential oil supplementation. [49][50][51] The observed reduction in renal function biomarkers, namely; creatinine and urea may be attributed mainly to the antioxidant properties of thyme which, like other plants in the Labiatae family, is a rich source of phenolic substances: phenolic acids (mainly rosmarinic acid) and flavonoids. The active compounds in thyme could have antiinflammatory properties and increase the activity of phase I and phase II xenobiotic detoxification enzymes, which would also promote hepatoprotection.…”

Section: Effect Of Thyme Essential Oil On Renal Function In Turkeysmentioning

confidence: 99%

Effect of Thyme Essential Oil on Serum Lipid Profile and Renal Function in Meleagris gallopavo

2024

TJNPR

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In this context, aromatic plants and their extracts have been an interesting choice for scientific research as a means of improving animal health and productivity 3 and as a safe alternative to antibiotics. 4 In fact, studies have shown that essential oils improve poultry production and have cholesterol-lowering, coccidiostatic, and anti-inflammatory effects. [5][6][7][8] In addition, their role in supporting metabolic functions and their effect on biological functions and regulatory mechanisms in severe and chronic diseases has been demonstrated in several studies. [9][10][11][12] Similarly, laboratory experiments have demonstrated the antimicrobial activity of essential oils, particularly Thymus vulgaris (thyme) essential oil, whose main component is thymol, 13,14 to reduce the negative effects of antibiotics, protect and improve the health of consumers. [15][16][17] In this regard, Mousavi and colleagues have claimed that phytogenic essential oils improve gut health indices in laying hens. 18 However, variable results have been reported on their effects on overall broiler productivity. 19,20 Studies have also shown the therapeutic effects of thyme on skin ulcers caused by leishmaniasis in rats, and also as a traditional herbal treatment to combat the insect vectors that transmit leishmaniasis, providing antimicrobial, antioxidant, and insecticidal activities. [21][22][23][24][25][26] Since the 1990s, several studies have been carried out on the effects of essential oils on the zootechnical performance of poultry especially

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Impact of Dietary Supplementation of Different Levels of Thyme and Its Essential Oils on Performance, Blood Parameters, Metabolic and Immune Response of Broiler Chickens

Cited by 6 publications

References 0 publications

Diet of Broilers with Essential Oil from Citrus sinensis and Xylopia aromatica Fruits

Diet of Broilers with Essential Oil from Citrus sinensis and Xylopia aromatica Fruits

An Immobilized Form of a Blend of Essential Oils Improves the Density of Beneficial Bacteria, in Addition to Suppressing Pathogens in the Gut and Also Improves the Performance of Chicken Breeding

Effect of Thyme Essential Oil on Serum Lipid Profile and Renal Function in Meleagris gallopavo

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