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dc.contributor.authorSilva, Cláudio José Araújo dapt_BR
dc.contributor.authorFernandes, Sérgio Rodrigopt_BR
dc.contributor.authorSilva, Marina Gabriela Berchiol dapt_BR
dc.contributor.authorMonteiro, Alda Lúcia Gomespt_BR
dc.contributor.authorPoli, Cesar Henrique Espirito Candalpt_BR
dc.contributor.authorPrado, Odilei Rogeriopt_BR
dc.contributor.authorPimentel, Concepta Margaret McManuspt_BR
dc.contributor.authorGilaverte, Susanapt_BR
dc.date.accessioned2014-11-19T02:16:02Zpt_BR
dc.date.issued2014pt_BR
dc.identifier.issn1516-3598pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/107132pt_BR
dc.description.abstractThe influence of early weaning and concentrate supplementation strategies on sward characteristics, forage chemical composition and lamb productivity were evaluated in four production systems on Tifton-85 pasture: suckling lambs not supplemented until slaughter; suckling lambs supplemented with concentrate in creep feeding until slaughter; early-weaned lambs not supplemented until slaughter; and early-weaned lambs supplemented with concentrate until slaughter. Structural, morphological and productive characteristics of pasture were measured. The forage was chemically analyzed to estimate its composition. Lambs average daily gain and productivity were calculated. Sward height, forage and morphological components mass were lower in systems without weaning. Forage production was higher in systems with supplementation. Higher levels of neutral and acid detergent fiber were observed in forage ingested by lambs in creep feeding and by weaned and unsupplemented lambs. Average daily gain was higher for lambs in creep feeding (275 g/d) and lower for the weaned and unsupplemented animals (57 g/d). Productivity was higher for weaned and supplemented lambs (21 kg lamb body weight, BW gain/ha/d). Lower productivity was observed in systems without supplementation (5 kg lamb BW gain/ha/d on average). Ewes modify the sward conditions improving the pasture characteristics and the quality of forage produced. Changes in sward conditions affect the chemical composition of forage ingested by lambs. Early weaning may be an alternative to maximize pasture utilization in small areas. Concentrate supplementation may increase lamb performance and productivity in grazing systems. If the objective is to improve lamb individual performance, creep feeding should be used.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofRevista brasileira de zootecnia= Brazilian journal of animal science [recurso eletrônico]. Viçosa, MG. Vol. 43, n. 8 (ago. 2014), p. 428-435pt_BR
dc.rightsOpen Accessen
dc.subjectCordeiropt_BR
dc.subjectAverage daily gainen
dc.subjectDesmamept_BR
dc.subjectCreep feedingen
dc.subjectLeaf:stem ratioen
dc.subjectNutricao animalpt_BR
dc.subjectForragempt_BR
dc.subjectProductivityen
dc.subjectStocking rateen
dc.titleEarly weaning and concentrate supplementation strategies for lamb production on Tifton-85 pasturept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000939213pt_BR
dc.type.originNacionalpt_BR


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