Effects of dietary oleuropein supplementation on growth performance, serum lipid concentrations and lipid oxidation of Japanese quails

Sarica, S.; Toptas, S.

doi:10.1111/jpn.12192

Cited by 26 publications

(32 citation statements)

References 41 publications

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“…The results with respect to blood parameters are in agreement with the results of previous studies (Coni et al, 2000;Andreadou et al, 2006;Sarica and Toptas, 2014). Indeed, it has been reported that the addition of oleuropein to the diet reduced the plasmatic levels of total (Coni et al, 2000;Andreadou et al, 2006), free, and ester cholesterols (Andreadou et al, 2006), as well as triglycerides (Coni et al, 2000;Andreadou et al, 2006) in rabbits.…”

Section: Discussionsupporting

confidence: 92%

“…In some studies, dietary oleuropein supplementation improved the performance of broilers (El-Damrawy et al, 2013;Jabri et al, 2017), laying hens (Cayan and Erener, 2015;Ahmed et al, 2017), and quail (Bahsi et al, 2016). In contrast to these reports, oleuropein supplementation at increasing levels exerted no growth-promoting effect when incorporated into quail diets (Sarica and Toptas, 2014).…”

Section: Discussionmentioning

confidence: 62%

“…Only a limited number of studies could be found in the literature on the effects of oleuropein on the productive performance of quail (Sarica and Toptas, 2014;Bahsi et al, 2016), broilers (El-Damrawy et al, 2013;Jabri et al, 2017), and laying hens (Cayan and Erener, 2015;Ahmed et al, 2017). However, the results of feeding diets enriched with oleuropein to these poultry species are contradictory, perhaps because the levels and forms of dietary oleuropein supplementation as well as the animal breeds and species in these studies differ.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of olive leaf extract as a growth promoter on the performance, blood biochemical parameters, and caecal microflora of broiler chickens

Erener¹,

Ocak²,

Öztürk³

et al. 2020

Revista Brasileira De Zootecnia

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The objective of the study was to examine the effects of an alcoholic liquid olive leaf extract (OLE) obtained from fresh leaves on the growth performance, carcass weight, caecal microflora, and some plasma variables, such as triglycerides, total cholesterol, high-density lipoprotein (HDL), and low-density lipoprotein (LDL) cholesterol in broiler chickens. A total of 375 one-day-old male broilers (Ross 308) were randomly divided into five treatments with five replicate pens (15 birds each) per treatment. The birds were fed either a basal diet with no supplement (control), with 75 (OLE75), 150 (OLE150), 300 (OLE300), and 600 (OLE600) mg kg −1 oleuropein, provided by 0.66, 1.33, 2.65, and 5.32 g kg −1 of the OLE. The dietary supplementation of OLE linearly increased daily body weight gain (BWG), feed intake (FI), and carcass weight and improved feed conversion ratio (FCR). Although the OLE600 broilers had the highest daily FI among the treatments, there were significant increases in their BWG and improvements in FCR compared with the control, OLE75, and OLE150 birds. The carcass weights of OLE150, OLE300, and OLE600 birds were higher than those of the control group. The OLE600 diet increased the dressing percentage compared with the OLE75, OLE150, and OLE300 diets. The abdominal fat weight and the plasma HDL concentration of the control broilers were lower than those of all OLE birds. All doses of OLE supplementation decreased the caecal E. coli content. A growth-promoting effect is obtained from the dietary supplementation of 600 mg kg −1 oleuropein due to its beneficial effect on growth performance and caecal microflora populations of broilers.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

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Evaluation of olive leaf extract as a growth promoter on the performance, blood biochemical parameters, and caecal microflora of broiler chickens

Erener¹,

Ocak²,

Öztürk³

et al. 2020

Revista Brasileira De Zootecnia

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“…On the other hand, in the past years, the leaves of Olea europaea L. have been considered as an important source of antioxidant compounds. In this case, OL is the most predominant and active phenolic compound (60-90 mg/g dried olive leaves), and it is usually considered as an antioxidant reference in comparison with other secoirioids [45,46]. OL contains active components in its molecule with conferred a potential antioxidant activity.…”

Section: Functional and Physiological Chemistry Of The Main Secoiridomentioning

confidence: 99%

Potential Protective Role Exerted by Secoiridoids from Olea europaea L. in Cancer, Cardiovascular, Neurodegenerative, Aging-Related, and Immunoinflammatory Diseases

et al. 2020

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Iridoids, which have beneficial health properties, include a wide group of cyclopentane [c] pyran monoterpenoids present in plants and insects. The cleavage of the cyclopentane ring leads to secoiridoids. Mainly, secoiridoids have shown a variety of pharmacological effects including anti-diabetic, antioxidant, anti-inflammatory, immunosuppressive, neuroprotective, anti-cancer, and anti-obesity, which increase the interest of studying these types of bioactive compounds in depth. Secoiridoids are thoroughly distributed in several families of plants such as Oleaceae, Valerianaceae, Gentianaceae and Pedialaceae, among others. Specifically, Olea europaea L. (Oleaceae) is rich in oleuropein (OL), dimethyl-OL, and ligstroside secoiridoids, and their hydrolysis derivatives are mostly OL-aglycone, oleocanthal (OLE), oleacein (OLA), elenolate, oleoside-11-methyl ester, elenoic acid, hydroxytyrosol (HTy), and tyrosol (Ty). These compounds have proved their efficacy in the management of diabetes, cardiovascular and neurodegenerative disorders, cancer, and viral and microbial infections. Particularly, the antioxidant, anti-inflammatory, and immunomodulatory properties of secoiridoids from the olive tree (Olea europaea L. (Oleaceae)) have been suggested as a potential application in a large number of inflammatory and reactive oxygen species (ROS)-mediated diseases. Thus, the purpose of this review is to summarize recent advances in the protective role of secoiridoids derived from the olive tree (preclinical studies and clinical trials) in diseases with an important pathogenic contribution of oxidative and peroxidative stress and damage, focusing on their plausible mechanisms of the action involved.

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“…Moreover, Özdemir and Azman (25) conducted a study to determine the effects of addition of olive leaf extract to quail mixed feeds on yield performance and found that the lowest saturated fatty acid ratios in egg yolk were determined in oleuropein added group. In the another study Sarıca and Toptaş (27) reported that supplemented with oleuropein at the levels of 150 or 200 mg/kg had significantly the highest polyunsaturated fatty acid and omega-3 fatty acid contents in thigh meat, and levels of the oleuropein supplementation didn't affect performence parameters in quails.…”

Section: Discussionmentioning

confidence: 99%

Effects of olive leaf extract (oleuropein) on performance, fatty acid levels of breast muscle and some blood parameters in Japanese quail (Coturnix coturnix Japonica) reared in different stocking dens

ÇİFTÇİ¹

2016

Ankara Üniversitesi Veteriner Fakültesi Dergisi

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Summary:This study was performed to determine the effects of olive leaf extract (oleuropein) on performance, fatty acid levels of breast muscle and some blood parameters in quails reared in different stocking densities. In the study, a total of 270 quail chicks (Coturnix coturnix Japanica), 15 days-old were used. The birds were randomly assigned according to 2 stocking densities (12, 18 birds/cage) × 3 oleuropein levels (0, 200, 400 ppm) including 6 treatment groups of 3 replicates while keeping the gender (135 female, 135 male) and initial weight balanced. The treatment was completed until 29 days. Stocking densities were arranged to be 100 and 150 cm 2 per quail in cages. Higher stocking density negatively affected live weight, body weight gain and carcass parameters (P<0.05). Oleuropein which added to mixed feed increased body weight gain, polyunsaturated fatty acid ratio, omega 3 and 6 fatty acid levels of breast muscle, and improved feed conversion rate (P<0.05) while reducing saturated fatty acid level of breast muscle (P<0.05). Consequently, dietary oleuropein supplementation would improve performance and quality of breast muscle lipids by lowering saturated fatty acid proportions and by enhancing contents of polyunsaturated fatty acids in either stocking densities. According to examined parameters, a dose of 400 ppm oleuropein provided preferable results among the groups, especially in higher stocking density.Key words: Carcass lipids, olive leaf extract, performance, quail, stocking density.Farklı yerleşim sıklığında yetiştirilen Japon bıldırcınlarında (Coturnix coturnix Japonica) zeytin yaprağı ekstraktının (oleuropein) performans, göğüs eti yağ asidi düzeyleri ve bazı kan parametrelerine etkisi Özet: Bu araştırma, zeytin yaprağı ekstraktının (oleropein) farklı yerleşim sıklığında yetiştirilen bıldırcınlarda performans, bazı kan parametreleri ve göğüs eti yağ asidi düzeylerine etkisini tespit etmek için yapılmıştır. Araştırmada 15 günlük yaşta 270 adet Japon bıldırcını (Coturnix coturnix Japonica) kullanılmıştır. Bıldırcınlar iki yerleşim sıklığı (12, 18 bıldırcın/kafes) x 3 oleropein düzeyi (0, 200, 400 ppm) olmak üzere 3 tekerrürlü 6 deneme grubuna ayrılmıştır. Gruplar başlangıç canlı ağırlığı ve cinsiyet (135 dişi, 135 erkek) bakımından dengelenmiştir. Deneme 29 gün sürmüştür. Yerleşim sıklıkları kafeslerde bıldırcın başına 100 ve 150 cm 2 olacak şekilde düzenlenmiştir. Yüksek yerleşim sıklığı canlı ağırlık, canlı ağırlık artışı ve karkas özelliklerini olumsuz etkilemiştir (P<0.05). Karma yeme katılan oleropein canlı ağırlık artışı, göğüs eti çoklu doymamış yağ asidi oranı, omega 3 ve 6 yağ asidi düzeylerini yükseltmiş, yemden yararlanma oranını iyileştirmiş (P<0.05), göğüs eti doymuş yağ asidi düzeyini düşürmüştür (P<0.05). Sonuç olarak, her iki yerleşim sıklığında diyete katılan oleropeinin performansı ve göğüs eti lipit kalitesini; doymuş yağ asidi oranlarını azaltıp, çoklu doymamış yağ asidi düzeylerini artırarak iyileştirdiği sonucuna varılmıştır. İncelenen parametrelere göre, 400 ppm dozundaki...

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Effects of dietary oleuropein supplementation on growth performance, serum lipid concentrations and lipid oxidation of Japanese quails

Cited by 26 publications

References 41 publications

Evaluation of olive leaf extract as a growth promoter on the performance, blood biochemical parameters, and caecal microflora of broiler chickens

Evaluation of olive leaf extract as a growth promoter on the performance, blood biochemical parameters, and caecal microflora of broiler chickens

Potential Protective Role Exerted by Secoiridoids from Olea europaea L. in Cancer, Cardiovascular, Neurodegenerative, Aging-Related, and Immunoinflammatory Diseases

Effects of olive leaf extract (oleuropein) on performance, fatty acid levels of breast muscle and some blood parameters in Japanese quail (Coturnix coturnix Japonica) reared in different stocking dens

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