Efficiency of the use of ryegrass by heifers in response to the receival of supplement

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dc.creatorLaila Arruda Ribeiro
dc.creatorMarta Gomes da Rocha
dc.creatorLuciana Pötter
dc.creatorMaria José de Oliveira Sichonany
dc.creatorMônique Foggiato da Silva
dc.creatorAnelise Pereira Hundertmarck
dc.date2017
dc.date.accessioned2026-07-07T03:57:10Z
dc.descriptionThe intensity and frequency of defoliation of ryegrass (Lolium multiflorum Lam.) by beef heifers exclusively grazing or receiving corn grain or extruded commercial product with fat as supplement were evaluated. The grazing method was put-and-take stocking. The experimental design was completely randomized following a repeated measure arrangement, three treatments and two area replications. The phyllochron of ryegrass was 140.1 and 303.4°GD the leaf lifespan. The intensity (67.0 %) and the frequency of defoliation (6.4 days) were similar, regardless of supply or no of energetic supplement for grazing heifers. The defoliation frequency indicates that the heifers can return about 3.3 times to the same tiller during the leaf lifespan. Considering the different categories of leaf blades, the supply of extruded fat causes the heifers to remove higher proportion (66.5 %) of expanding leaf blades. On ryegrass pasture, the efficiency of forage use is not modified when heifers receive energetic supplement.
dc.formatapplication/pdf
dc.identifier1806-2636
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303149707003
dc.identifierhttps://www.redalyc.org/journal/3031/303149707003/
dc.identifierhttps://www.redalyc.org/journal/3031/303149707003/html/
dc.identifierhttps://www.redalyc.org/journal/3031/303149707003/303149707003.epub
dc.identifierhttps://www.redalyc.org/journal/3031/303149707003/movil
dc.identifier.urihttp://hdl.handle.net/123456789/448325
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3031
dc.rightsActa Scientiarum. Animal Sciences
dc.sourceActa Scientiarum. Animal Sciences (Brasil) Num.1 Vol.39
dc.subjectAgrociencias
dc.titleEfficiency of the use of ryegrass by heifers in response to the receival of supplement
dc.typeartículo científico

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Acta Scientiarum. Animal Sciences - Universidade Estadual de Maringá