Effects of dietary essential oil components on growth performance, digestive enzymes and lipid metabolism in female broiler chickens

Lee, Kyung-Woo; Everts, H.; Kappert, H. J.; Frehner, Monika; Losa, Riccardo; Beynen, A.C.

doi:10.1080/0007166031000085508

Cited by 493 publications

(301 citation statements)

References 25 publications

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“…The improvement in nutrient absorption may be partly explained by increased secretions of saliva, bile and enhanced enzyme activity [56,63-65]. However, Muhl and Liebert [66] did not observe improved nutrient digestibility and enhanced pancreatic and duodenal activity of trypsin and amylase in weaned piglets fed diets containing a phytogenic product having carvacrol, thymol and tannins as key constituents.…”

Section: Introductionmentioning

confidence: 99%

Essential oil and aromatic plants as feed additives in non-ruminant nutrition: a review

Zeng

Zhang

Wang

et al. 2015

J Animal Sci Biotechnol

406

308

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This paper summarizes the current knowledge regarding the possible modes of action and nutritional factors involved in the use of essential oils (EOs) for swine and poultry. EOs have recently attracted increased interest as feed additives to be fed to swine and poultry, possibly replacing the use of antibiotic growth promoters which have been prohibited in the European Union since 2006. In general, EOs enhance the production of digestive secretions and nutrient absorption, reduce pathogenic stress in the gut, exert antioxidant properties and reinforce the animal’s immune status, which help to explain the enhanced performance observed in swine and poultry. However, the mechanisms involved in causing this growth promotion are far from being elucidated, since data on the complex gut ecosystem, gut function, in vivo oxidative status and immune system are still lacking. In addition, limited information is available regarding the interaction between EOs and feed ingredients or other feed additives (especially pro- or prebiotics and organic acids). This knowledge may help feed formulators to better utilize EOs when they formulate diets for poultry and swine.

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Section: Introductionmentioning

confidence: 99%

Essential oil and aromatic plants as feed additives in non-ruminant nutrition: a review

Zeng

Zhang

Wang

et al. 2015

J Animal Sci Biotechnol

406

308

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“…Clove as a digestive stimulant has been previously reported to provide beneficial effect [57]. Its stimulating effects on performance [58, 59] and digestive enzymes [60] of birds have been reported. The clove stimulants which are mostly antioxidants could be ascribed to its phytochemical contents providing protective effect [61] or due to their trace element contents which are prerequisite for the antioxidant enzyme activities [63] thereby promoting the performance.…”

Section: Discussionmentioning

confidence: 99%

Acute phase protein mRNA expressions and enhancement of antioxidant defense system in Black-meated Silkie Fowls supplemented with clove (Eugenia caryophyllus) extracts under the influence of chronic heat stress

Bello

Sulaiman

2016

J Anim Sci Technol

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BackgroundThe current study investigates the anti-stress effects of clove (Eugenia caryophyllus) extracts (0, 200, 400, and 600 mg/kg) on serum antioxidant biomarkers, immune response, immunological organ growth index, and expression levels of acute phase proteins (APPs); ovotransferrin (OVT), ceruloplasmin (CP), ceruloplasmin (AGP), C-reactive protein (CRP), and serum amyloid-A (SAA) mRNA in the immunological organs of 63-d-old male black-meated Silkie fowls subjected to 21 d chronic heat stress at 35 ± 2 °C.ResultsThe results demonstrated that clove extract supplementation in the diet of Silkie fowls subjected to elevated temperature (ET) improve growth performance, immune responses, and suppressed the activities of glutathion peroxidase (GSH-Px), superoxide dismutase (SOD), catalase (CAT), and thioredoxin reductase (TXNRD); reduced serum malonaldehyde (MDA) and glutathione (GSH) concentrations when compared with fowls raised under thermoneutral condition (TC). Upon chronic heat stress and supplementation of clove extracts, the Silkie fowls showed a linear increase in GSH-Px, SOD, CAT, and TXNRD activities (P = 0.01) compared with fowls fed diets without clove extract. ET decreased (P < 0.05) the growth index of the liver, spleen, bursa of Fabricius and thymus. However, the growth index of the liver, spleen, bursa of Fabricius and thymus increased significantly (P < 0.05) which corresponded to an increase in clove supplemented levels. The expression of OVT, CP, AGP, CRP, and SAA mRNA in the liver, spleen, bursa of Fabricius and thymus were elevated (P < 0.01) by ET compared with those maintained at TC. Nevertheless, clove mitigates heat stress-induced overexpression of OVT, CP, AGP, CRP and SAA mRNA in the immune organs of fowls fed 400 mg clove/kg compared to other groups.ConclusionsThe results showed that clove extracts supplementation decreased oxidative stress in the heat-stressed black-meated fowls by alleviating negative effects of heat stress via improvement in growth performance, antioxidant defense mechanisms, immunity, and regulate the expression of acute phase genes in the liver and immunological organs.Electronic supplementary materialThe online version of this article (doi:10.1186/s40781-016-0122-4) contains supplementary material, which is available to authorized users.

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“…Others suggest that stimulation of digestive secretions is often considered to be a core mode of action (e.g. Lee et al, 2003). Nevertheless, antimicrobial properties seem to be the most relevant mode of action, especially in young animals.…”

Section: Impact On Poultry Productive Performancementioning

confidence: 99%

Perspectives in the use of tannins as alternative to antimicrobial growth promoter factors in poultry

Redondo¹,

Chacana²,

Dominguez³

et al. 2014

Front. Microbiol.

161

120

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Antibiotics have been included in the formulation of feed for livestock production for more than 40 years as a strategy to improve feed conversion rates and to reduce costs. The use of antimicrobials as growth-promoting factors (AGP) in sub-therapeutic doses for long periods is particularly favorable for the selection of antimicrobial resistant microorganisms. In the last years, global concern about development of antimicrobial resistance and transference of resistance genes from animal to human strains has been rising. Removal of AGP from animal diets involves tremendous pressure on the livestock and poultry farmers, one of the main consequences being a substantial increase in the incidence of infectious diseases with the associated increase in the use of antibiotics for therapy, and concomitantly, economic cost. Therefore, alternatives to AGP are urgently needed. The challenge is to implement new alternatives without affecting the production performances of livestock and avoiding the increase of antimicrobial resistant microorganisms. Plant extracts and purified derived substances are showing promising results for animal nutrition, either from their efficacy as well as from an economical point of view. Tannins are plant derived compounds that are being successfully used as additives in poultry feed to control diseases and to improve animal performance. Successful use of any of these extracts as feed additives must ensure a product of consistent quality in enough quantity to fulfill the actual requirements of the poultry industry. Chestnut (hydrolysable) and Quebracho (condensed) tannins are probably the most readily available commercial products that are covering those needs. The present report intends to analyze the available data supporting their use.

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Effects of dietary essential oil components on growth performance, digestive enzymes and lipid metabolism in female broiler chickens

Cited by 493 publications

References 25 publications

Essential oil and aromatic plants as feed additives in non-ruminant nutrition: a review

Essential oil and aromatic plants as feed additives in non-ruminant nutrition: a review

Acute phase protein mRNA expressions and enhancement of antioxidant defense system in Black-meated Silkie Fowls supplemented with clove (Eugenia caryophyllus) extracts under the influence of chronic heat stress

Perspectives in the use of tannins as alternative to antimicrobial growth promoter factors in poultry

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