Rangeland Ecology & Management

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Grazing systems, pasture size, and cattle grazing behavior, distribution and gains
Author
Hart, R. H.
Bissio, J.
Samuel, M. J.
Waggoner, J. W.
Publisher
Society for Range Management
Publication Year
1993-01-01
Body

Reduced pasture size and distance to water may be responsible for the alleged benefits of intensive time-controlled rotation grazing systems. We compared cattle gains, activity, distance traveled, and forage utilization on a time-controlled rotation system with eight 24-ha pastures, on two 24-ha pastures grazed continuously (season-long), and on a 207-ha pasture grazed continuously, all stocked at the same rate. Utilization on the 207-ha pasture, but not on the 24-ha pastures, declined with distance from water. At distances greater than 3 km from water in the 207-ha pasture, utilization was significantly less than on adjacent 24-ha pastures, at distances of 1.0 to 1.6 km from water. Cows on the 207-ha pasture travelled farther (6.1 km/day) than cows on the 24-ha rotation pastures (4.2 km/day), which traveled farther than cows on the 24-ha continuously grazed pastures (3.2 km/day). Grazing system, range site, slope, and weather had minimal effects on cow activity patterns. Gains of cows and calves were less on the 207-ha pasture (0.24 and 0.77 kg/day, respectively) than on the 24-ha rotation pastures or 24-ha continuously grazed pastures (0.42 and 0.89 kg/da, respectively), with no differences between the latter. Calculated "hoof action" on the rotation pastures was less than that demonstrated to increase seed burial and seedling emergence. Intensive rotation grazing systems are unlikely to benefit animal performance unless they reduce pasture size and distance to water below previous levels, decreasing travel distance and increasing uniformity of grazing. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020

Language
en
Resource Type
Text
Document Type
Journal Issue/Article
Digital Object Identifier (DOI)
10.2307/4002452
Additional Information
Hart, R. H., Bissio, J., Samuel, M. J., & Waggoner, J. W. (1993). Grazing systems, pasture size, and cattle grazing behavior, distribution and gains. Journal of Range Management, 46(1), 81-87.
IISN
0022-409X
OAI Identifier
oai:repository.arizona.edu:10150/644570
Journal Volume
46
Journal Number
1
Journal Pages
81-87
Journal Name
Journal of Range Management
Keywords
size
drinking water
grazing time
distance travelled
controlled grazing
liveweight gain
continuous grazing
duration
pastures
rotational grazing
grazing behavior
grazing
beef cattle