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dc.contributor.authorOwensby, C. E.
dc.contributor.authorCochran, R. C.
dc.contributor.authorBrandt, R. T.
dc.contributor.authorVanzant, E. S.
dc.contributor.authorAuen, L. M.
dc.contributor.authorClary, E. M.
dc.date.accessioned2020-09-23T18:33:43Z
dc.date.available2020-09-23T18:33:43Z
dc.date.issued1995-05-01
dc.identifier.citationOwensby, C. E., Cochran, R. C., Brandt, R. T., Vanzant, E. S., Auen, L. M., & Clary, E. M. (1995). Grain supplementation on bluestem range for intensive-early stocked steers. Journal of Range Management, 48(3), 246-250.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4002428
dc.identifier.urihttp://hdl.handle.net/10150/644401
dc.description.abstractA 4-year study was conducted on Kansas Flint Hills bluestem range to monitor animal gain, grass, and forb standing biomass following grazing, plant population dynamics, and in 2 years, subsequent feedlot performance of steers under intensive-early stocking supplemented with increasing levels of sorghum grain. Each year from 1988 through 1991, crossbred beef steers were stocked at 0.24 ha/100 kg of initial steer weight from 5 May to 1; July. Steers in twice-replicated pastures were given no supplementation, 0.91 kg rolled sorghum grain per head daily, or 1.82 kg rolled sorghum grain per head daily, which corresponded to approximately 0, 0.3, and 0.6% of body weight-1. All steers were implanted with estradiol 17 beta in 1988 and zeranol in 1989-91 during initial processing and had unlimited access to a lasalocid/mineral mixture during the entire trial. In 1989 and 1990, representative groups of steers selected from all treatment/pasture combinations were subjected to a feedlot finishing phase and carcass data were obtained. Grass and forb standing crops were estimated each year at livestock removal in mid-July and again in early October. Pretreatment species composition and basal cover were determined in 1988 and compared to those at the end of the study. In mid-July, when cattle were removed, residual standing biomass of grass increased in direct proportion to increasing level of supplement. Standing biomass of grass at the end of the growing season did not differ among pastures with different supplement levels. Forb standing biomass did not differ among pastures with different supplement levels in July or October. Changes in plant populations among treatments during the course of the study were minimal. During the early portion of the grazing period, sorghum grain supplementation did not significantly influence steer gains, but average daily gain during the latter part of the grazing period increased in direct proportion to increasing level of sorghum grain supplement. Daily gain. feed intake, carcass characteristics, and gain:feed ratio were not different among treatments during the feedlot phase. Although conversion efficiencies may be economically marginal, low-level grain supplementation has the potential to increase the daily gain of cattle grazing early-season tallgrass prairie under an intensive-early stocking program.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectfeed conversion
dc.subjectdressing percentage
dc.subjectcarcass weight
dc.subjectsorghum
dc.subjectSorghastrum nutans
dc.subjectwarm-season grasses
dc.subjectSchizachyrium scoparium
dc.subjectPoa pratensis
dc.subjectKansas
dc.subjectliveweight gain
dc.subjectgrazing experiments
dc.subjectpastures
dc.subjectAndropogon gerardii
dc.subjectsteers
dc.subjectfeed supplements
dc.subjectbiomass
dc.subjectbotanical composition
dc.subjectgrasses
dc.subjectbeef cattle
dc.titleGrain supplementation on bluestem range for intensive-early stocked steers
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.collectioninformationThe 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.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume48
dc.source.issue3
dc.source.beginpage246-250
refterms.dateFOA2020-09-23T18:33:43Z


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