1999
DOI: 10.1046/j.1365-2494.1999.00158.x
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The relationship between level of sward height reduction in a rotationally grazed sward and short‐term intake rates of dairy cows

Abstract: The objective of this study was to investigate the relationship between level of sward height reduction (SHR) and short-term intake of herbage by lactating dairy cows offered swards differing in initial bulk density (BD). Three experiments were carried out in which cows were presented with swards representing different levels of SHR (nominally described as ungrazed, low, moderate and high). Experiments 1 and 2 differed with respect to initial sward BD [ungrazed sward 1á7 vs. 2á5 kg dry matter (DM) m A3 respect… Show more

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Cited by 56 publications
(65 citation statements)
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“…The large sward height supports the potential for an increased bite mass (Gibb et al, 1999) as well as the effect of hunger, as stated by Patterson et al (1998). This is further underlined by the fact that the bite mass estimated in treatments 6.5 h and 9 h is lower than in studies with similar sward height (McGilloway et al, 1999;Pulido and Leaver, 2001).…”
Section: Discussionsupporting
confidence: 58%
“…The large sward height supports the potential for an increased bite mass (Gibb et al, 1999) as well as the effect of hunger, as stated by Patterson et al (1998). This is further underlined by the fact that the bite mass estimated in treatments 6.5 h and 9 h is lower than in studies with similar sward height (McGilloway et al, 1999;Pulido and Leaver, 2001).…”
Section: Discussionsupporting
confidence: 58%
“…McGilloway et al (1999) A taxa de ingestão de forragem (Figura 4) diferiu estatisticamente entre bezerras e ovelhas (P = 0,014). A máxima taxa de ingestão foi equivalente a 0,683 g de MS/ minuto/kg de PM (ou 30,91 g/minuto de MS) e de 0,467 mg de MS/minuto/kg de PM (ou 10,34 g/minuto de MS) para bezerras e ovelhas, respectivamente.…”
Section: Resultsunclassified
“…De modo geral, é descrita por variáveis que expressam de forma bidimensional (kg/ha de MS) a quantidade de forragem existente. Nesta forma mais comum de expressão da estrutura do pasto, de acordo com Milne & Fischer (1993), as dimensões vertical e horizontal da distribuição da matéria seca do pasto ressaltam a importância de variáveis como a massa de forragem disponível, altura e densidade de matéria seca, que têm sido motivo de vários estudos sobre a influência das características do pasto sobre a ingestão de forragem (Burlison et al, 1991).…”
Section: Introductionunclassified
“…A manutenção da altura da pastagem em 10 cm para o capim-marandu e 20 cm para o tanzânia (baixa) pode ser desestimulante para o consumo animal, pois redução severa na altura da pastagem promove decréscimo significativo na taxa de ingestão pelos animais (McGilloway et al, 1999;Orr et al, 2004).…”
Section: Resultsunclassified