2007
DOI: 10.1590/s0102-09352007000600026
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Avaliação de ionóforos pela técnica da perda do potássio celular e produção de gases in vitro

Abstract: RESUMODois estudos foram realizados com vacas lactantes utilizadas como unidade experimental e doadoras de líquido ruminal, sendo as populações de bactérias utilizadas para avaliar a ação de níveis crescentes de lasalocida e monensina na resistência à perda de potássio intracelular, e para produção de gases in vitro. A perda de potássio (K max ) da lasalocida foi menor para a população de bactérias obtidas do líquido de rúmen de vacas submetidas a dietas com monensina, óleo de soja e monensina mais óleo de soj… Show more

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Cited by 7 publications
(9 citation statements)
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“…Van Soest (1994) affirmed that the animal response to a feed depends on complex interactions between diet composition, its processing, and consequently, the nutritional value, which is defined by three components: dry matter intake and digestibility and energy efficiency. This corroborates Leopoldino et al (2007), who verified that antibiotics were effective in reducing the volume of gases, with the greater action of propolis, and reduction of methane, which resulted in lower power loss to the environment, in a ionophore evaluation by the techniques of cellular potassium loss and gas production in vitro.…”
Section: Resultssupporting
confidence: 85%
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“…Van Soest (1994) affirmed that the animal response to a feed depends on complex interactions between diet composition, its processing, and consequently, the nutritional value, which is defined by three components: dry matter intake and digestibility and energy efficiency. This corroborates Leopoldino et al (2007), who verified that antibiotics were effective in reducing the volume of gases, with the greater action of propolis, and reduction of methane, which resulted in lower power loss to the environment, in a ionophore evaluation by the techniques of cellular potassium loss and gas production in vitro.…”
Section: Resultssupporting
confidence: 85%
“…The average value found for breathing rate (82.21 breaths/min) was similar to that of 76.3 ± 6.3 breaths/min pointed by Marai et al (2007) in Suffolk sheep. Average heart rate was 103.62 beats/min, close to the 88.0 ± 11.0 beats/min pointed by Marai et al (2007).…”
Section: Resultssupporting
confidence: 82%
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“…Nos últimos anos, ionóforos, como a monensina sódica (Leopoldino et al, 2007), têm sido utilizados na formulação de dietas para manejo que alterna períodos de restrição energética e períodos de realimentação, com o objetivo de auxiliar a promover o crescimento compensatório nos animais, diminuindo os custos relativos à criação de novilhas para reposição do rebanho.…”
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