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dc.contributor.authorOlson, K. C.
dc.contributor.authorMalechek, J. C.
dc.date.accessioned2020-09-24T03:20:26Z
dc.date.available2020-09-24T03:20:26Z
dc.date.issued1988-05-01
dc.identifier.citationOlson, K. C., & Malechek, J. C. (1988). Heifer nutrition and growth on short duration grazed crested wheatgrass. Journal of Range Management, 41(3), 259-263.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/3899182
dc.identifier.urihttp://hdl.handle.net/10150/645189
dc.description.abstractAnimal performance and nutrition under short duration grazing (SDG) and season-long grazing (SLG) were compared on spring-grazed crested wheatgrass [Agropyron desertorum (Fisch.) Schult. and A. cristatum (L.) Gaertn.] range to determine if SDG has the potential to improve livestock production on such rangelands. Livestock performance was evaluated by measuring weight gains twice per grazing season. Diet quality was assessed by determining crude protein concentration and in vitro organic matter digestibility of extrusa samples collected from esophageally fistulated heifers. Three variables of ingestive behavior were measured: ingestion rate, biting rate, and grazing time. Daily forage intake was calculated as the product of ingestion rate and grazing time. Animals in the SLG treatment gained significantly more than those under SDG in 1983 (1.07 vs. 0.81 kg/hd/d), but no statistical differences were detected in 1984 (1.13 vs. 1.07 kg/hd/d for SDG and SLG, respectively). In 1985, animals under SDG gained the most (1.03 vs. 0.87 kg/hd/d for SDG vs. SLG, respectively). No differences were detected in diet quality between SDG and SLG throughout the study. No treatment differences were detected in ingestive behavior during 1984, but ingestion rate was greater and grazing time less under SDG than SLG during 1985. Results indicate that forage intake was greater, while energy expenditures were lower under SDG than SLG in 1985. The hypothesis that SDG extends the season of nutritious forage was not supported.
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.subjectnutrient requirements
dc.subjectforage evaluation
dc.subjectanimal production
dc.subjectcontrolled grazing
dc.subjectbrowse plants
dc.subjectAgropyron desertorum
dc.subjectliveweight gain
dc.subjectAgropyron cristatum
dc.subjectheifers
dc.subjectUtah
dc.subjectgrazing
dc.subjectfeed intake
dc.titleHeifer nutrition and growth on short duration grazed crested wheatgrass
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.noteThis material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries.
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.volume41
dc.source.issue3
dc.source.beginpage259-263
refterms.dateFOA2020-09-24T03:20:26Z


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