Performance of indigenous and exotic x indigenous sheep breeds fed different diets in spring and the efficiency of feeding system in crop-livestock farming

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dc.contributor.authorAtes, S.
dc.contributor.authorKeles, G.
dc.contributor.authorInal, F.
dc.contributor.authorGunes, A.
dc.contributor.authorDhehibi, B.
dc.date.accessioned2020-03-26T19:06:37Z
dc.date.available2020-03-26T19:06:37Z
dc.date.issued2015
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractGenetic variation in feed efficiency may have a significant impact on sheep production in integrated crop livestock farming systems in dry areas, where the shortage and poor quality of feed is widespread. Thus, the present study was carried out to investigate the effects of sheep genotype and feed source on liveweight gain, feed conversion efficiency and dry matter (DM) intake in feedlot lambs finished on diets based on low-cost forages or a high-cost concentrated feed as a means of assessing the efficiency of this feeding system. Early weaned lambs of the purebred fat-tailed Akkaraman breed were compared with synthetic Anatolian Merino (0.80 German Mutton Merino x 0.20 Native Akkaraman) breed. The lambs were kept in individual pens for 8 weeks and fed four diets: daily harvested forages of triticale (T), Hungarian vetch (HV), a triticale-Hungarian vetch mixture (T+HV), and a concentrate-based feed (CF). Lamb liveweight gain (LWG) was monitored during the early (18 April-16 May) and late (17 May-13 June) spring periods. Dietxperiod and dietxbreed interactions were detected in LWG of the lambs. Lambs from both genotypes on the concentrate-based diet had higher liveweight gains, DM intakes and better feed conversion ratios compared with lambs finished on the forage-based diets. The LWG of lambs offered triticale forage decreased from 177 g/head/day in the early spring to 95 g/head/day in the late spring period, as plant maturity increased. Liveweight gains did not change for the other forage rations during the same period. The LWG of Akkaraman lambs were similar for both the early (189 g/head/day) and the late (183 g/head/day) spring periods, whereas Anatolian Merino lambs gained 41 g/head/day less LWand had 3.8 higher feed conversion rate for the late spring period compared with the early spring period. The present study showed that fat-tailed Akkaraman lambs were better able to utilize forages with low nutritive value compared to Anatolian Merino lambs, and may be better suited to semi-arid areas, where crop and livestock are highly integrated in the farming system.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [111O008]en_US
dc.description.sponsorshipWe acknowledge the Scientific and Technological Research Council of Turkey (TUBITAK) for the financial support of the study (Project no. 111O008).en_US
dc.identifier.doi10.1017/S0021859614000677en_US
dc.identifier.endpage569en_US
dc.identifier.issn0021-8596en_US
dc.identifier.issn1469-5146en_US
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage554en_US
dc.identifier.urihttps://dx.doi.org/10.1017/S0021859614000677
dc.identifier.urihttps://hdl.handle.net/20.500.12395/32421
dc.identifier.volume153en_US
dc.identifier.wosWOS:000351414900013en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherCAMBRIDGE UNIV PRESSen_US
dc.relation.ispartofJOURNAL OF AGRICULTURAL SCIENCEen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titlePerformance of indigenous and exotic x indigenous sheep breeds fed different diets in spring and the efficiency of feeding system in crop-livestock farmingen_US
dc.typeArticleen_US

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