Pattern of utilization and response of Lehmann lovegrass (Eragrostis lehmanniana Nees) grazed by cattle.

Persistent Link:
http://hdl.handle.net/10150/184519
Title:
Pattern of utilization and response of Lehmann lovegrass (Eragrostis lehmanniana Nees) grazed by cattle.
Author:
Santos do Nascimento, Hoston Tomas.
Issue Date:
1988
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
A fifteen month experiment was conducted to study the pattern of utilization of Lehmann lovegrass by cows during different seasons at three stocking rates on four patch types (grazed, open; grazed, under-mesquite; mowed, artificial; and ungrazed control) at the Santa Rita Experimental Range. The purpose of the research was to determine the influence of standing biomass, proportion of green material and nutrient content of patch types on the relative time cattle grazed patch types. Cattle biting rate on patch types was also measured. Height of leaves and flowers, dry biomass (kg/ha and %), green biomass (kg/ha) and total biomass were greater on ungrazed patches. Proportion of green was greater in grazed than ungrazed patches. Protein, phosphorus, Calcium and IVDMD were higher in green and complete samples of grazed than ungrazed patches. Cattle concentrated grazing upon upland, open grazed patches and under-mesquite canopy. These selected areas were higher in proportion of green biomass and nutrient value and lower in total standing crop and total green biomass than ungrazed areas. Nutrient density, rather than biomass appeared to govern cattle grazing.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Love grass.; Cattle -- Arizona -- Santa Rita Experimental Range.; Grazing -- Arizona -- Santa Rita Experimental Range.; Santa Rita Experimental Range (Ariz.)
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Nutritional Sciences; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Rise, Richard W.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titlePattern of utilization and response of Lehmann lovegrass (Eragrostis lehmanniana Nees) grazed by cattle.en_US
dc.creatorSantos do Nascimento, Hoston Tomas.en_US
dc.contributor.authorSantos do Nascimento, Hoston Tomas.en_US
dc.date.issued1988en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractA fifteen month experiment was conducted to study the pattern of utilization of Lehmann lovegrass by cows during different seasons at three stocking rates on four patch types (grazed, open; grazed, under-mesquite; mowed, artificial; and ungrazed control) at the Santa Rita Experimental Range. The purpose of the research was to determine the influence of standing biomass, proportion of green material and nutrient content of patch types on the relative time cattle grazed patch types. Cattle biting rate on patch types was also measured. Height of leaves and flowers, dry biomass (kg/ha and %), green biomass (kg/ha) and total biomass were greater on ungrazed patches. Proportion of green was greater in grazed than ungrazed patches. Protein, phosphorus, Calcium and IVDMD were higher in green and complete samples of grazed than ungrazed patches. Cattle concentrated grazing upon upland, open grazed patches and under-mesquite canopy. These selected areas were higher in proportion of green biomass and nutrient value and lower in total standing crop and total green biomass than ungrazed areas. Nutrient density, rather than biomass appeared to govern cattle grazing.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectLove grass.en_US
dc.subjectCattle -- Arizona -- Santa Rita Experimental Range.en_US
dc.subjectGrazing -- Arizona -- Santa Rita Experimental Range.en_US
dc.subjectSanta Rita Experimental Range (Ariz.)en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineNutritional Sciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorRise, Richard W.en_US
dc.contributor.committeememberRay, D. E.en_US
dc.contributor.committeememberWhiting, F. M.en_US
dc.contributor.committeememberBrown, W. H.en_US
dc.contributor.committeememberRuyle, G. B.en_US
dc.identifier.proquest8902354en_US
dc.identifier.oclc701545683en_US
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