2008
DOI: 10.1590/s0103-90162008000200004
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Abstract: Tropical pastures fertilized with nitrogen may have high crude protein (CP) contents with high rumen degradability. High crude protein concentrates offered to cows grazing these pastures may increase feed costs without positive effects on their performance. The objectives of this trial were to evaluate the effects of increasing metabolizable protein (MP) supply beyond the NRC (2001) recommendations for mid lactating dairy cows grazing elephant grass pasture (Pennisetum purpureum Schum. cv. Napier) managed with… Show more

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Cited by 13 publications
(28 citation statements)
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References 7 publications
(9 reference statements)
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“…Os valores de massa de forragem em pré-pastejo desse estudo foram menores que os obtidos por Voltolini et al (2008), na mesma área experimental. Esses autores relataram valores de 8.000 a 16.000 kg MS/ha por ciclo de pastejo.…”
Section: Resultsunclassified
“…Os valores de massa de forragem em pré-pastejo desse estudo foram menores que os obtidos por Voltolini et al (2008), na mesma área experimental. Esses autores relataram valores de 8.000 a 16.000 kg MS/ha por ciclo de pastejo.…”
Section: Resultsunclassified
“…Voltolini et al (2009) observed that the addition of concentrate supplementation was insufficient to promote greater intake of total dry matter, which may evidence, in these cases, the occurrence of rumen acidosis. The values of dry matter intake and forage dry matter intake-to-concentrate supplement treatments observed in this study are higher than those reported by Voltolini et al (2009), who worked with Santa Inês × UB (undefined breed) crossbred sheep on irrigated Tifton 85 pastures receiving 180 g/day of concentrate supplement. According to the authors, the dry matter intake and mean forage intake were 0.595 and 0.417 kg/day, respectively; but when comparing the dry matter intake and forage intake of animals grazing only on pasture, the results obtained by these authors are higher: 0.628 kg/day.…”
Section: Resultsmentioning
confidence: 99%
“…This effect, in turn, can be used in the production system as a tool to increase the stocking rate of pastures (Voltolini et al, 2009).…”
Section: Resultsmentioning
confidence: 99%
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