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dc.contributorKhnissi, S.en_US
dc.contributorRekik, Mouraden_US
dc.contributorLassoued, Narjessen_US
dc.creatorBenkhlil, Zohraen_US
dc.identifier.citationZohra Benkhlil, S. Khnissi, Mourad Rekik, Narjess Lassoued. (31/3/2017). Feed supplementation improves estrus response and increases fertility of sheep induced to breed out of season. Tropical Animal Health and Production, 49 (3), pp. 607-612.en_US
dc.description.abstractTo test the efficacy on reproductive performance of nutritional supplementation in an out-of-season mating system, 66 adult prolific Barbarine ewes were selected and induced to breed using “ram effect”. The ewes were allocated to two homogeneous groups; each ewe received on a daily basis 700 g of hay and 500 g of barley grains starting 3 weeks before or 1 week after rams’ introduction in group 1 and group 2, respectively. Supplementation ended 1 month after rams’ introduction and mating lasted 60 days. Final live weight 30 days after introduction of rams was higher (P < 0.05) for ewes in group1 (39.45 vs. 36.72 kg). Seven days after introduction of rams, ewes in group 1 recorded higher plasma glucose levels than females in group 2 (4.12 and 3.9 S.E.M. 0.05 mmol l−1). Proportions of ewes which displayed estrus between days 16 and 26 were 48 and 38% in group 1 and group 2, respectively (P < 0.05), and those which had a normal induced cycle (16–17 days) were 25 and 11% in group 1 and group 2, respectively (P < 0.05). Fertilities were higher (P < 0.05) for ewes in group 1 than in group 2 (91.17 vs. 75.75% and 97.1 vs. 81.8% for fertility at induced estrus and total fertility, respectively). It is concluded that a timed supplementation starting 3 weeks before introduction of rams is effective in yielding high reproductive performance for the prolific strain of the Barbarine breed.en_US
dc.publisherSpringer Verlag (Germany)en_US
dc.sourceTropical Animal Health and Production;49,(2017) Pagination 607-612en_US
dc.subjectprolific sheepen_US
dc.subjectbody condition scoreen_US
dc.subjectfertility managementen_US
dc.titleFeed supplementation improves estrus response and increases fertility of sheep induced to breed out of seasonen_US
dc.typeJournal Articleen_US
cg.creator.idRekik, Mourad: 0000-0001-7455-2017en_US
cg.subject.agrovocram effecten_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerNational Agricultural Research Institute of Tunisia - INRATen_US
cg.contributor.centerUniversity of Carthage - UCAR Tunisen_US
cg.contributor.crpCGIAR Research Program on Dryland Systems - DSen_US
cg.contributor.funderCGIAR System Organization - CGIARen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionNorthern Africaen_US
cg.isijournalISI Journalen_US
dc.identifier.statusLimited accessen_US
cg.journalTropical Animal Health and Productionen_US

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