Publication:
Effect of maturity stage on chemical composition, in vitro and in situ dry matter degradation of tumbleweed hay (Gundelia tournefortii L.)

dc.contributor.authorKamalak, Adem
dc.contributor.authorGürbüz, Yavuz
dc.contributor.authorErol, Adem
dc.contributor.authorÖzay, Osman
dc.contributor.buuauthorCanbolat, Önder
dc.contributor.departmentZiraat Fakültesi
dc.contributor.departmentHayvan Besleme Bölümü
dc.date.accessioned2021-07-06T10:26:58Z
dc.date.available2021-07-06T10:26:58Z
dc.date.issued2005-05
dc.description.abstractThe nutritive values of tumbleweed (Gundelia tournefortii L.) hays harvested at three stages were evaluated by chemical composition, in vitro (gas production) and in situ dry matter degradation methods. Gas production or dry matter (DM) degradation were calculated at 0, 3, 6, 12, 24, 48, 72 and 96 h and their kinetics were described using the equation p = a + b (1 - e(ct)). Maturity had a significant effect on both the chemical composition and degradability of tumbleweed hay. Neutral detergent fibre (NDF), acid detergent fibre (ADF) and ether extract (EE) increased with increasing maturity whereas the crude protein (CP) and ash content decreased. The gas produced after 96 h incubation ranged between 66.33 and 76.67 ml per 0.200 g of dry matter. The gas production (ml) at all incubation times and estimated parameters decreased with increasing maturity of tumbleweed hay. The gas production at all incubation times and estimated parameters (c, a, organic dry matter digestibility (OMD), metabolizable energy (ME)) were negatively correlated with NDF and ADF. The DM disappearance after 96 h incubation ranged between 56.19 and 72.77%. The in situ DM disappearance at all incubation times and estimated parameters decreased with increasing maturity of tumbleweed hay. The in situ dry matter disappearance at all incubation times and estimated parameters (c, a, b and effective dry matter degradability (P)) were negatively correlated with NDF, ADF and EE but positively correlated with CP and ash content. There were significant correlations between in vitro gas production and in situ DM disappearance at all incubation times. The nutritive value of tumbleweeds continually changed as it matures. Tumbleweeds, harvested at the proper stage of maturity offers considerable potential as a high quality forage for ruminant during winter feeding period. (c) 2004 Elsevier B.V. All rights reserved.
dc.identifier.citationKamalak, A. vd. (2005). "Effect of maturity stage on chemical composition, in vitro and in situ dry matter degradation of tumbleweed hay (Gundelia tournefortii L.)". Small Ruminant Research, 58(2), 149-156.
dc.identifier.endpage156
dc.identifier.issn0921-4488
dc.identifier.issue2
dc.identifier.scopus2-s2.0-18144382607
dc.identifier.startpage149
dc.identifier.urihttps://doi.org/10.1016/j.smallrumres.2004.09.011
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0921448804002457
dc.identifier.urihttp://hdl.handle.net/11452/21127
dc.identifier.volume58
dc.identifier.wos000229340900007
dc.indexed.scopusScopus
dc.indexed.wosSCIE
dc.language.isoen
dc.publisherElsevier Science BV
dc.relation.collaborationYurt içi
dc.relation.journalSmall Ruminant Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectTumbleweed hay
dc.subjectGas production
dc.subjectMaturity stage
dc.subjectIn situ degradation
dc.subjectNylon bag degradability
dc.subjectIncubation
dc.subjectGas-production
dc.subjectNutritive evaluation
dc.subjectRumen
dc.subjectDigestibility
dc.subjectForages
dc.subjectFiber
dc.subjectAgriculture
dc.subject.wosAgriculture, dairy & animal science
dc.titleEffect of maturity stage on chemical composition, in vitro and in situ dry matter degradation of tumbleweed hay (Gundelia tournefortii L.)
dc.typeArticle
dc.wos.quartileQ3
dspace.entity.typePublication
local.contributor.departmentZiraat Fakültesi/Hayvan Besleme Bölümü
local.indexed.atWOS
local.indexed.atScopus

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