Title : ( Thyme and cinnamon essential oils: Potential alternatives formonensin as a rumen modifier in beef production systems )
Authors: behzad khorrami , Seyed Alireza Vakili , Mohsen Danesh Mesgaran , F.Klevenhusen ,
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Abstract
Four ruminallycannulatedHolsteinsteers(540±35 kginitialbodyweight)wereusedina 4×4 Latinsquaredesignover21-dayperiodstoexamineeffectsofsupplementingabasal diet (CON)withthymeoil(THY,500mg/kgDM)orcinnamonoil(CIN,500mg/kgDM)on nutrient digestibility,ruminalfermentationcharacteristicsandrumenmicrobialpopulations. Monensin(MON,33mg/kgDM)wasusedaspositivecontrol.Steerswerefedabasal diet astotalmixedration(TMR) ad libitum. Theresultsindicatedthatdrymatterintake (DMI) andapparentdigestibilityofnutrientswerenotaffectedbyadditives.Dietarysupple- mentations didnotaffectruminalpHandammonianitrogenconcentration.Totalvolatile fatty acid(VFA)concentrationsandproportionsofacetateandbutyratewerenotaffected by essentialoils(EO),buttherewasatrend(P<0.10)forareducedconcentrationoftotal VFA andproportionofbutyratewithMONsupplementationcomparedtoCON.Propionate proportion increased(P<0.05)withTHYandMONsupplementationandtheratioofacetate to propionatedecreased(P<0.05)withEOandMON.Therelativeabundancesofproto- zoa andmethanogensdecreased(P<0.01)intherumenofsteerswhensupplementedwith additives. Ruminalpopulationof Ruminococcus flavefaciens was notaffectedbytreatments, but populationsof Fibrobacter succinogenes and Ruminococcus albus decreased (P<0.05)by supplementation ofEOorMON,respectively.ResultsfromthisstudysuggestthatTHY or CINcanbeconsideredaspotentialalternativestoMONandmightbeusefulasrumen fermentation modifiersinbeefproductionsystems.
Keywords
, Thymol, Cinnamaldehyde, Rumen fermentation, Microbial population, Beef cattle
@article{paperid:1045578,
author = {Khorrami, Behzad and Vakili, Seyed Alireza and Danesh Mesgaran, Mohsen and F.Klevenhusen},
title = {Thyme and cinnamon essential oils: Potential alternatives formonensin as a rumen modifier in beef production systems},
journal = {Animal Feed Science and Technology},
year = {2015},
volume = {200},
number = {2},
month = {February},
issn = {0377-8401},
pages = {8--16},
numpages = {8},
keywords = {Thymol، Cinnamaldehyde، Rumen fermentation، Microbial population، Beef cattle},
}
%0 Journal Article
%T Thyme and cinnamon essential oils: Potential alternatives formonensin as a rumen modifier in beef production systems
%A Khorrami, Behzad
%A Vakili, Seyed Alireza
%A Danesh Mesgaran, Mohsen
%A F.Klevenhusen
%J Animal Feed Science and Technology
%@ 0377-8401
%D 2015
