Daily intake of lactating crossbred cows grazing elephant grass rotationally.

dc.contributorCNPGL
dc.creatorAROEIRA, L.J.M.
dc.creatorLOPES, F.C.F.
dc.creatorSOARES, J.P.G.
dc.creatorDERESZ, F.
dc.creatorVERNEQUE, R. da S.
dc.creatorARCURI, P.B.
dc.creatorMATOS, L.L. de
dc.date2011-04-09T12:04:22Z
dc.date2011-04-09T12:04:22Z
dc.date2001
dc.date2001-09-11
dc.date.accessioned2017-03-06T19:23:56Z
dc.date.available2017-03-06T19:23:56Z
dc.identifier19145
dc.identifierhttp://www.alice.cnptia.embrapa.br/handle/doc/103917
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/264427
dc.descriptionThe goal of this trial was to estimate the total dry matter (TDMI) and daily pasture dry matter intakes (PDMI) by lactating crossbred Holstein - Zebu cows grazing elephant grass (Pennisetum purpureum Schum.) paddocks submitted to different rest periods. Three groups of 24 cows were used during two years. The paddocks were grazed during three days at the stocking rate of 4.5 cows/ha. reatments consisted of resting periods of 30 days without concentrate and resting periods of 30, 37.5 and 45 days with 2 kg/cow/day of 20.6% crude protein concentrate. From July to October, pasture was supplemented with chopped sugarcane plus 1% urea. Total daily dry matter intake was estimated using the extrusa in vitro dry matter digestibility and the fecal output with chromium oxide. Regardless of the treatment the estimated average TDMI was 2.7, 2.9 and 2.9±0.03% and the mean PDMI was 1.9, 2.1 and 2.1±0.03% of body weight in the first, second and third grazing day, respectively (P<0.05). Only during the summer pasture quality was the same whichever the grazing day. Sugarcane effectively replaced grazing pasture, mainly in the first day when pasture dry matter intake was lowest.
dc.description2001
dc.languageen
dc.publisherPesquisa Agropecuaria Brasileira, Brasilia, v.36, n.6, p. 911-17, jun. 2001.
dc.relationÁrea de Informação da Sede - Artigo em periódico indexado (ALICE)
dc.subjectPennisetum purpureum
dc.subjectDigestibility
dc.subjectExtrusion
dc.subjectDry matter content
dc.subjectFeed grasses
dc.subjectDigestibilidade
dc.subjectExtrusao
dc.subjectConteudo da materia seca
dc.subjectGramineas forrageiras
dc.titleDaily intake of lactating crossbred cows grazing elephant grass rotationally.
dc.typeArtículos de revistas


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