Effects of rosemary essential oil as a feed additive on performance, rumen fermentation, and blood parameters in preweaning Holstein calves

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dc.authoridbiricik, hakan/0000-0001-7051-1349
dc.contributor.authorBiyik, F.
dc.contributor.authorBiricik, H.
dc.contributor.authorUrkmez, E.
dc.contributor.authorKara, C.
dc.contributor.authorCetin, I.
dc.contributor.authorUdum, D.
dc.date.accessioned2024-10-29T17:58:51Z
dc.date.available2024-10-29T17:58:51Z
dc.date.issued2023
dc.departmentTekirdağ Namık Kemal Üniversitesi
dc.description.abstractThe objective of this study was to investigate the effects of rosemary essential oil (REO) supplemen- tation on growth performance, blood metabolites and rumen fermentation in calves throughout the suckling period. Fourty Holstein calves were randomly divided to four dietary groups. Each group consisted of 10 calves; control with no REO supplementation (CON), supplementation of 500 mg/d REO (REO1), supplementation of 1000 mg/d REO (REO2) and supplementation of 2000 mg/d REO (REO3). REO supplementation quadratically increased (P<0.05) the calf starter (CS) intake, average daily gain (ADG) and feed efficiency. Calves fed REO1 and REO2 had the highest CS intake and ADG. Ruminal ammonia-N concentration was lower (P=0.02) for calves fed REO3 than calves fed REO1, but total volatile fatty acids concentration was higher (P<0.01) for calves fed REO1 compared with calves fed CON and REO3. The concentrations of ghrelin, NEFA and BHBA increased linearly (P<0.05) with increasing levels of REO. Calves fed REO2 and REO3 had the highest concentration of ghrelin. Cholesterol concentration decreased linearly (P<0.01) with increasing REO levels on d 56. Calves fed REO2 and REO3 had the lowest cholesterol concentration. Also, serum IgG concentration was higher (P<0.01) in calves fed REO2 and REO3 compared with calves fed CON on d 28. It was concluded that the addition of different amounts of rosemary essential oil can positively change some rumen and blood metabolites of calves, as well as the supplementation of REO may have a beneficial effect on growth performance by increasing ghrelin.
dc.identifier.doi10.12681/jhvms.31076
dc.identifier.endpage6200
dc.identifier.issn1792-2720
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85178272001
dc.identifier.scopusqualityQ3
dc.identifier.startpage6191
dc.identifier.urihttps://doi.org/10.12681/jhvms.31076
dc.identifier.urihttps://hdl.handle.net/20.500.11776/14526
dc.identifier.volume74
dc.identifier.wosWOS:001089329300025
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherHellenic Veterinary Medical Soc
dc.relation.ispartofJournal of The Hellenic Veterinary Medical Society
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectcalf
dc.subjectessential oil
dc.subjectghrelin
dc.subjectgrowth performance
dc.subjectrosemary
dc.titleEffects of rosemary essential oil as a feed additive on performance, rumen fermentation, and blood parameters in preweaning Holstein calves
dc.typeArticle

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