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Evaluation of oregano (Origanum vulgare) essential oil supplementation on growth performance, digestive enzymes, intestinal histomorphology and gut microbiota of Black Sea salmon, Salmo labrax       
Yazarlar (5)
Osman Tolga Özel
Eyüp Çakmak
Türkiye
Selin Ertürk Gürkan
Çanakkale Onsekiz Mart Üniversitesi, Türkiye
Prof. Dr. İsa COŞKUN Prof. Dr. İsa COŞKUN
Kırşehir Ahi Evran Üniversitesi, Türkiye
Mustafa Türe
Türkiye
Devamını Göster
Özet
This study aimed to determine the effect of dietary oregano (Origanum vulgare) essential oil (EO) on the growth performance, digestive enzyme activity, intestinal histomorphology, and intestinal microbiota of the Black Sea salmon juvenile (Salmo labrax). Fish were fed diets different levels of oregano EO such as 50, 100, 200, and 400 mg kg-1. For this purpose, a total of 675 fish were distributed randomly in triplicate into 5 experiment groups in 15 experiment tanks. Fish with average initial weights of 3.52±0.01 g were fed by hand at 3% of live weight for 90 days. At the end of the study, feeding with oregano EO supplementation did not significantly affect the growth performance of fish. Except for pepsin, there were no significant differences in the activity of digestive enzymes among the control and oregano EO groups. Besides, oregano EO at the doses of 50 or 400 mg kg-1 may have the potential to increase the surface area required for digestion by increasing intestinal villi length. Moreover, all doses of oregano EO showed antimicrobial properties by decreasing the count of lactic acid bacteria in the intestine. Supplementation with 100 and 200 mg kg-1 oregano EO in diets decreased the total coliform, Escherichia coli and lactic acid bacteria counts when compared to the control group. The results showed that oregano EO may positively affect digestion and absorption without adverse effects on the growth performance of Black Sea salmon juvenile.
Anahtar Kelimeler
aquaculture | bacteria | enzyme | phytobiotic | villi
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Walter de Gruyter GmbH
Dergi ISSN 2300-8733 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 04-2022
Cilt No 22
Sayı 2
Sayfalar 763 / 772
Doi Numarası 10.2478/aoas-2021-0068
Makale Linki http://dx.doi.org/10.2478/aoas-2021-0068