Get reliable rangeland science

Nutrient intake of cattle on rotational and continuous grazing treatments
Author
McKown, C. D.
Walker, J. W.
Stuth, J. W.
Heitschmidt, R. K.
Publisher
Society for Range Management
Publication Year
1991-11-01
Body

Many benefits have been obtained from rotational grazing, including management flexibility and livestock distribution, but long-term positive effects on plant and animal production have been inconsistent. The purpose of this cast study was to investigate nutrient intake of animals in 2 production scale grazing, treatments. The study site was the Texas Experimental Ranch located in Throckmorton County, in the eastern portion of the Rolling Plains of Texas. Treatments were a 465-ha, 16-paddock, 1-herd, cell designed rotational grazing system (RG) stocked at a heavy rate (3.7 ha cow-1 yr-1) and a 248-ha continuously grazed (CG) treatment stocked at a moderate rate (6.2 ha cow-1 yr-1). Size of RG paddocks was varied to create different livestock densities to simulate rotational grazing at a 14 and 42 paddock level. Comparisons were made to determine the effect of type of grazing system (RG vs. CG) and the effect of livestock density within the RG system on nutrient intake. Nutrient intake of esophageally fistulated steers was determined by daily dosing them with ytterbium nitrate-labeled forage and collection of fecal samples plus collection of fistula extrusa samples for crude protein and in vitro organic matter digestibility determinations. The only difference caused by different livestock densities was a higher (P < 0.001) intake of forage crude protein in the simulated 42 paddock system. Nutrient intake of steers in the CG treatment was greater (P < 0.001) than those in the RG treatment. Differences between treatment were attributed primarily to differences in stocking rate rather than grazing system. 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)
10.2307/4003043
Additional Information
McKown, C. D., Walker, J. W., Stuth, J. W., & Heitschmidt, R. K. (1991). Nutrient intake of cattle on rotational and continuous grazing treatments. Journal of Range Management, 44(6), 596-601.
ISSN
0022-409X
OAI Identifier
oai:repository.arizona.edu:10150/644753
Journal Volume
44
Journal Number
6
Journal Pages
596-601
Collection
Rangeland Ecology & Management (REM)
Journal Name
Journal of Range Management
Keywords
stocking rate
rotational grazing
beef cattle
feed intake