1998
DOI: 10.1046/j.1365-2494.1998.00102.x
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Effect of time of day on grazing behaviour by lactating dairy cows

Abstract: An experiment was conducted to examine the effect of time of day on the rate of intake of herbage by grazing dairy cows. Eight unsupplemented Holstein Friesian cows in their fourth month of lactation grazed grass swards maintained at a sward surface height of 6·5 cm. Commencing at 07.00, 11.30, 16.00 and 19.00 h, intake rates were estimated by measuring the liveweight change, corrected for insensible weight loss, over a period of 1 h while grazing. During the period of grazing, recordings of jaw movement activ… Show more

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Cited by 104 publications
(90 citation statements)
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“…The lack of effect on bite rate of time at pasture is in contrast to both Patterson et al (1998) and Chilibroste et al (1997) who, besides a negative relation between time at pasture and average bite rate, also found that the intensity declined during the day. Also Gibb et al (1998) found, that the bite rate was higher in the grazing period following morning milking compared with grazing later in the day, but it is interesting that time of day did not affect total jaw movements. This could explain the missing effect on bite rate, as our method with visual inspection perhaps tended to register jaw movement and not bites.…”
Section: Discussionmentioning
confidence: 92%
See 1 more Smart Citation
“…The lack of effect on bite rate of time at pasture is in contrast to both Patterson et al (1998) and Chilibroste et al (1997) who, besides a negative relation between time at pasture and average bite rate, also found that the intensity declined during the day. Also Gibb et al (1998) found, that the bite rate was higher in the grazing period following morning milking compared with grazing later in the day, but it is interesting that time of day did not affect total jaw movements. This could explain the missing effect on bite rate, as our method with visual inspection perhaps tended to register jaw movement and not bites.…”
Section: Discussionmentioning
confidence: 92%
“…Herbage intake per unit time is related to the time of day (Gibb et al, 1998;Orr et al, 2001), with the highest intake during morning and evening meals. Limiting the time spent on pasture per day might increase grazing intensity (Jung et al, 2002), as may a high herbage allowance (Pulido and Leaver, 2003).…”
Section: Introductionmentioning
confidence: 99%
“…Behavioral studies allow the construction of time budgets (Gibb et al, 1998), as well as understanding how cows modify their behavior under different management regimes (Johansson et al, 1999). Studies conducted in conventional pasture-based systems have analyzed the impact of supplementation (Phillips and Leaver, 1986;Sheahan et al, 2011), frequency of pasture allocation (Dalley et al, 2001;Granzin, 2003), pasture height (Gibb et al, 1997) and pasture allowance (Chilibroste et al, 2012), together with available grazing time (Gregorini et al, 2009;Kennedy et al, 2009;Perez-Ramirez et al, 2009), prior fasting (Chilibroste et al, 1997 and2007) and time of the day (Gregorini, 2012) on cow behavior.…”
Section: Introductionmentioning
confidence: 99%
“…Lebih lanjut Rook (2000) menyimpulkan bahwa sapi lebih banyak mengunyah pada malam hari daripada siang hari. Gibb et al (1998) melaporkan bahwa lama mengunyah sapi menunjukkan nilai maksimum pada malam hari (52,6; 47,5; 51;6; 59,4 Brown, M.S., Krehbiel, C.R., Galyean, M.L. , Remmenga, M.D., Peters, J.P., Hibbard,…”
Section: Lama Waktu Dan Frekuensi Ruminasiunclassified