The Automatic Recording of the Grazing Behaviour of Dairy Cows

Castle, M. E.; Macdaid, Elizabeth; Watson, J. N.

doi:10.1111/j.1365-2494.1975.tb01369.x

Cited by 8 publications

(4 citation statements)

References 6 publications

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“…The effect of grazing treatments indicated several general trends which we hypothesize were caused by a combination of vegetation and social factors that influenced behavior in different ways depending on the grazing treatment. The trend towards shorter total grazing time in the RG compared to CG treatment (Table 1) is consistent with previous studies (Hancock 1953, Castle et al 1975, Gammon and Roberts 1980. We believe that these differences among treatments were at least a partial result of more uniform herbage due to less mixing of live and dead tissue in the RG paddocks ).…”

Section: Discussion and Co~~clusionssupporting

confidence: 92%

Some Effects of a Rotational Grazing Treatment on Cattle Grazing Behavior

Walker¹,

Heitschmidt²

1989

Journal of Range Management

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Research was conducted on the effects of rotational grazing (RG) compared to continuous grazing (CG) on the behavior of cattle grazing on rangelands. Different livestock den&tics in the RG treatments were created by varying the size of paddocks in a 4651a, U-paddock, cell deaigntd RG treatment stocked at a rate of 3.6 ha/cow/yr. Paddock sizes of 30 and lo-ha were used to simulate RG with 14 (RG-14) and 42-paddocks (RG-42), resptctivtly. The CG treatment consisted of a 24&ha pasture stocktd at 5.9 ha/cow/yr. Data were collected using vibracordtrs, ptdomtters and observation to estimate time (min/day) spent: intense grazing, starch grazing, trailing, or sleeping; distance walked (km/day), and individual animal space (m2/animrl) in grazing subherds. Total grazing time did not vary among grazing trtatmtnts, but the components of total grazing (i.e., inttnst and starch grazing) did vary among treatments. Cattle in the RG-14 paddocks spent less time search grazing compared to the ants in the other treatments presumably because the rotational grazed paddocks were more uniform because of less mixing of live and dead forage. Starch grazing was highest in the RG-42 paddocks which may be due to the high stock density in this treatment coupled with an attempt to maintain individual animal space. Grazing time tended to be longer the first day in a RG-14 paddock than the last. Time spent trailing and the distance walked increased as the frequency of rotation increased among the different treatments. Sleeping was similar among grazing treatments. Individual animal space within a grazing subhtrd decreased as the stock density increased because of the grazing treatment.Grazing management affects plant and animal production through the effect that it has on critical parameters at the plant animal interface. The animal's proximal response to managementinduced changes at this interface is a behavioral response. Restricted nutrient intake is probably the major factor limiting production from grazing animals (Hodgson 1982). However, behavior variables may be more sensitive to grazing management than nutrient intake because intake may be buffered by adaptive behavior. Understanding how livestock adjust their grazing behavior to variation in herbage standing crop and grazing management systems is essential to the development of a theoretical framework of the factors controlling intake of grazing animals (Demment et al. 1986).Cattle respond to grazing management and variations in herbage standing crop and structure by varying the time spent grazing, rate of biting, bite size, time spent at a feeding station, and time spent

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Section: Discussion and Co~~clusionssupporting

confidence: 92%

Some Effects of a Rotational Grazing Treatment on Cattle Grazing Behavior

Walker¹,

Heitschmidt²

1989

Journal of Range Management

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“…One way which this technological advancement can help advance an understanding of pastoral livestock-environment interactions is to couple GPS data with 'vibracorders' and digital pedometers in order to infer grazing behaviors of cattle (Castle et al, 1975;Chambers et al, 1981;Ungar et al, 2005). This would reduce the amount of labor required to document behaviors and would increase the accuracy and independence of the data.…”

Section: Efficacy Of the Gps Tracking Methods And Technological Improvmentioning

confidence: 98%

Seasonal space-time dynamics of cattle behavior and mobility among Maasai pastoralists in semi-arid Kenya

Butt

2010

Journal of Arid Environments

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“…1975). As a result, simpler rotational systems have been developed involving fixed rotations and stocking rates (Leaver et al 1969;Holmes et al 1972;Castle & Watson, 1973a).…”

Section: Grazing Systemsmentioning

confidence: 99%

Milk production from grazed temperate grassland

Leaver

1985

Journal of Dairy Research

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On improved pasture, the degree of reliance on grasses or legumes is mainly dependent on the price of N fertilizer. The supply of available N is a major factor affecting the yield of pasture plants. This supply is derived from the soil, from the excreta of animals, from legume plants and from fertilizer (Richards, 1975, 1977). Soil N contribution ranges from 0-250 kg/ha per annum with low values associated with light arable soils and high

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The Automatic Recording of the Grazing Behaviour of Dairy Cows

Cited by 8 publications

References 6 publications

Some Effects of a Rotational Grazing Treatment on Cattle Grazing Behavior

Some Effects of a Rotational Grazing Treatment on Cattle Grazing Behavior

Seasonal space-time dynamics of cattle behavior and mobility among Maasai pastoralists in semi-arid Kenya

Milk production from grazed temperate grassland

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