Rangeland Ecology & Management
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- Library Collection RecordPaper presented at the "Symposium on Ingestion of Poisonous Plants by Livestock," February 15, 1990, Reno, Nevada. Three species of tall larkspur (Delphinium barbeyi (Huth), Delphinium…Publication Date 1992-01-01
- Delphinium glaucescens
- Delphinium occidentale
- alkaloids
- toxicity
- Delphinium barbeyi
- cattle
- seasonal variation
- chemical constituents of plants
- poisonous plants
- diterpenoid alkaloids
- Library Collection RecordThe root periscope/mini-rhizotron technique has been used most commonly to monitor root growth of field crops in a nondestructive manner. This study introduces a successful application of the…Publication Date 1991-05-01
- field experimentation
- Dactylis glomerata
- methodology
- roots
- monitoring
- growth rate
- cattle
- defoliation
- grazing
- Library Collection RecordThe government must manage public rangeland in the face of alternative multiple use interests, including wildlife and domestic livestock production. The objectives of this study were to estimate a…Publication Date 1991-07-01
- linear programming
- mixed grazing
- production possibilities
- economic benefits
- production possibilities frontier
- marginal rates of substitution
- marginal returns
- animal production
- multiple land use
- cost-benefit analysis
- stocking rate
- Antilocapra americana
- biomass production
- Wyoming
- grazing intensity
- cattle
- range management
- rangelands
- forage
- Library Collection RecordThis paper discusses the criteria needed for quantitative evidence of overgrazing and outlines some of the main pasture and external factors that promote overgrazing by herbivores. Overgrazing is…Publication Date 1991-09-01
- wool production
- econometric models
- animal production
- economic analysis
- stocking rate
- pastures
- sheep
- overgrazing
- cattle
- rangelands
- Library Collection RecordThe effect of late-autumn cattle grazing on plant biomass was examined in a western Great Plains cottonwood riparian zone prone to catastrophic flooding every 5-8 years. Following 1 year of pre-…Publication Date 1991-07-01
- autumn
- Populus
- floodplains
- Spartina
- Spartina pectinata
- environmental impact
- community ecology
- Populus deltoides subsp. monilifera
- standing biomass
- community composition
- riparian grasslands
- Salix
- leaves
- controlled grazing
- plant ecology
- flooding
- riparian buffers
- biomass production
- cattle
- biomass
- botanical composition
- grazing
- Colorado
- forage
- Library Collection RecordSheep are more resistent to larkspur poisoning than cattle. Grazing larkspur with sheep before cattle turn-in may reduce the threat of cattle poisoning. Two 2.1-ha pastures were established in Upper…Publication Date 1992-03-01
- loss prevention
- Delphinium glaucescens
- biological control
- poisonous weeds
- weed control
- pastures
- sheep
- cattle
- Montana
- grazing
- Library Collection RecordPaper presented at the "Symposium on Ingestion of Poisonous Plants by Livestock," February 15, 1990, Reno, Nevada. Stocking rate, multi-species grazing, and grazing systems are 3 components…Publication Date 1992-01-01
- Hymenoxys odorata
- Nolina
- nolina texana
- mixed grazing
- losses
- toxicity
- Quercus
- stocking rate
- death
- sheep
- goats
- cattle
- Texas
- grazing
- poisonous plants
- Library Collection RecordAn automated system to weigh and sort free-ranging cattle was adapted to administer cottonseed pellets (41% crude protein) to free-ranging cattle. The frequency with which animals drank water…Publication Date 1992-05-01
- sorting
- cottonseed protein
- free range husbandry
- weight determination
- automation
- drinking
- body weight
- dietary supplements
- cattle feeding
- cattle
- Library Collection RecordVegetational response of a nine-paddock, short-duration grazing cell was compared to that of a continuous pasture for a 5-year period in southcentral New Mexico. Differences in vegetational response…Publication Date 1991-07-01
- grazing time
- vegetation cover
- standing crop
- stocking rate
- pastures
- vegetation
- Bouteloua gracilis
- biomass production
- grazing intensity
- cattle
- biomass
- range management
- botanical composition
- grazing
- New Mexico
- Library Collection RecordThe Kostiakov equation is of interest in rangeland hydrology because it is a simple 2 parameter equation with values of constants easy to determine from measured infiltration data, and because of its…Publication Date 1991-01-01
- mixed pastures
- hydrologic data
- Festuca
- grazing trials
- equations
- Alberta
- natural grasslands
- grazing intensity
- cattle
- prairies
- grazing
- infiltration
- soil water
- Library Collection RecordThe gas exchange responses of big bluestem (Andropogon gerardii) were followed after defoliation by either cattle grazing or clipping and compared with the response of nondefoliated (control) plants…Publication Date 1990-01-01
- photosynthesis/transpiration ratio
- stomatal conductance
- ratios
- transpiration
- gas exchange
- Andropogon gerardii
- Oklahoma
- cattle
- defoliation
- grazing
- Library Collection RecordBarbey larkspur (Delphinium barbeyi L. Huth) is a palatable poisonous plant that causes a large number of cattle deaths on mountain rangelands. The objective of the study was to determine whether or…Publication Date 1990-03-01
- behavior modification
- lithium
- chlorides
- forage conditioning
- grazing trials
- Delphinium barbeyi
- heifers
- diets
- grazing behavior
- cattle
- Utah
- feeding preferences
- poisonous plants
- Library Collection RecordThe valuable role that healthy riparian ecosystems play in regional diversity of plant and wildlife communities is just beginning to be recognized. Resource managers need to know how degraded…Publication Date 1990-07-01
- Poa palustris
- plant community analysis
- Salix
- population density
- Poa pratensis
- riparian buffers
- pastures
- regrowth
- mountain grasslands
- cattle
- grazing
- Colorado
- Library Collection RecordGrazing affects the plant ecology and adds excreta, thereby influencing soil N relationships. Consequently, total N, mineralizable N, exchangeable N, hydrolyzable N, and urease activity were assessed…Publication Date 1990-01-01
- nitrogen mineralization
- hydrolysis
- urease
- grassland soils
- soil organic matter
- A horizons
- chernozemic soils
- Festuca altaica
- enzyme activity
- nitrate nitrogen
- ammonium nitrogen
- distribution
- Alberta
- cattle manure
- stocking rate
- spatial distribution
- cattle
- grazing
- Library Collection RecordHarvesting trees for firewood in the oak hardwood rangelands of the western Sierra Nevada foothills creates slash that may be burned to improve livestock forage production or piled into brushpiles…Publication Date 1991-03-01
- economic analysis
- habitats
- hunting
- Quercus
- multiple land use
- fuelwood
- Callipepla californica
- brushwood
- slash
- pastures
- California
- cattle
- wildlife management
- range management
- rangelands
- grazing
- forage
- Library Collection RecordA 2-year experiment was conducted to determine the effect of 27 years of continuous grazing at moderate (7 ha/cow/yr) (MC) and heavy (5 ha/cow/yr) (HC) rates of stocking on seasonal diet selection…Publication Date 1990-07-01
- nutrient intake
- protein content
- stocking rate
- crude protein
- dietary supplements
- diets
- cattle
- in vitro digestibility
- seasonal variation
- botanical composition
- grazing
- forage
- Library Collection RecordCattle trampling has been recommended to bury seeds and encourage seedling establishment but has not been compared with traditional seedbed preparation techniques. We compared seedling emergence of…Publication Date 1991-03-01
- land imprinting
- plowing
- buried seeds
- seedbed preparation
- Bouteloua curtipendula
- hybrids
- Eragrostis
- Panicum antidotale
- Eragrostis trichophora
- seedling emergence
- seeds
- land restoration
- cattle
- Eragrostis lehmanniana
- trampling
- Arizona
- Library Collection RecordWe analyzed the response of the key habitat features and ground-foraging birds to 2 intensities of continuous grazing on sandy loam and clay soils in the Texas Coastal Bend during 1984-1985. Heavy…Publication Date 1990-01-01
- wildlife food plants
- sturnella magna
- birds
- Zenaida macroura
- Colinus virginianus
- population density
- habitats
- clay soils
- sandy loam soils
- grazing intensity
- cattle
- Texas
- grazing
- Library Collection RecordLocation of seeds in the seedbed may affect germination and seedling establishment of range grasses. Our objective was to determine the effects of trampling by livestock and mechanical seedbed…Publication Date 1991-03-01
- Eragrostis trichophora
- land imprinting
- plowing
- buried seeds
- seedbed preparation
- Bouteloua curtipendula
- hybrids
- Eragrostis
- Panicum antidotale
- seedling emergence
- rain
- seeds
- environmental factors
- cattle
- Eragrostis lehmanniana
- trampling
- Arizona
- Library Collection RecordImpacts of long-term cattle grazing on litter and soil organic matter were assessed in mixed prairie, parkland fescue, and foothills fescue grasslands of Alberta, Canada. Grazing regimes were of…Publication Date 1991-01-01
- soil organic matter
- chernozemic soils
- solonetzic soils
- mixed pastures
- Festuca
- grazing trials
- Alberta
- natural grasslands
- grazing intensity
- cattle
- prairies
- plant litter
- grazing
- Library Collection RecordUtilization patterns of cattle were related to pasture characteristics in a nonrandom and complex manner. Six mixed brush pastures on the Rio Grande Plains (244-356 ha) that were topographically flat…Publication Date 1991-03-01
- consumption patterns
- availability
- mixed pastures
- foraging
- environmental factors
- grazing behavior
- spatial distribution
- cattle
- plant density
- Texas
- range management
- botanical composition
- grazing
- grasses
- forage
- Library Collection RecordA key to management of short duration grazing systems is maintaining proper rest periods for individual pastures, but information on the necessary length of rest periods for tallgrass prairie is…Publication Date 1991-03-01
- grazing time
- controlled grazing
- ecological succession
- stocking rate
- rotational grazing
- Oklahoma
- natural grasslands
- grazing intensity
- plant communities
- cattle
- prairies
- botanical composition
- grazing
- Library Collection RecordA major problem in evaluating nutritional quality of the grazing animal’s diet is collecting forage representative of that being grazed. We compared the chemical composition of simulated diet (SD)…Publication Date 1990-07-01
- simulated diets
- mixed pastures
- Bromus inermis
- crop quality
- sown grasslands
- Psathyrostachys juncea
- Agropyron desertorum
- feces composition
- fiber content
- nitrogen
- phosphorus
- nutrient contents of plants
- Poaceae
- natural grasslands
- Pascopyrum smithii
- diets
- cattle
- in vitro digestibility
- forage
- Library Collection RecordSixteen ruminally cannulated beef steers grazing native summer range in the Northern Great PIains were assigned to 4 treatments in a 2 X 2 factorial arrangement. Main effects were barley grain and…Publication Date 1990-09-01
- steers
- digestibility
- crude protein
- digesta
- kinetics
- dietary supplements
- pH
- transit time
- barley
- feed supplements
- natural grasslands
- summer
- cattle feeding
- monensin
- feed grains
- diets
- cattle
- rumen fermentation
- Montana
- grazing
- feed intake
- Library Collection RecordSixteen ruminally cannulated steers grazing Northern Great Plains native winter range were assigned to 4 treatments in a 2 X 2 factorial arrangement. Main effects were protein and monensin. A soybean…Publication Date 1990-09-01
- pelleted feeds
- winter
- soybean meal
- steers
- digestibility
- crude protein
- digesta
- kinetics
- dietary supplements
- pH
- transit time
- barley
- natural grasslands
- cattle feeding
- monensin
- diets
- cattle
- protein supplements
- rumen fermentation
- Montana
- grazing
- feed intake
- Library Collection RecordHypotheses are frequently posed that require comparisons among diet samples. Hierarchical cluster analysis is suited to this task, but has received little attention in food habits research. By…Publication Date 1990-05-01
- cluster analysis
- feeding habits
- horses
- Antilocapra americana
- herbivores
- diet studies
- cattle
- seasonal variation
- Library Collection RecordSimulated 8-pasture short duration grazing systems were studied in 1985-86 to determine the effect of grazing schedule and stocking rate on defoliation patterns of individual grass tillers of big…Publication Date 1990-03-01
- Schizachyrium scoparium
- controlled grazing
- stocking rate
- Andropogon gerardii
- rotational grazing
- Oklahoma
- tillers
- grazing intensity
- cattle
- defoliation
- grazing
- plant height
- Library Collection RecordEmergence of broadcast-seeded kleingrass (Panicum coloratum L. 'Selection 75') was compared for 2 seasons in short-duration grazed (SDG) areas and ungrazed exclosures in the Texas Rolling…Publication Date 1990-03-01
- soil strength
- Panicum coloratum
- controlled grazing
- seedling emergence
- stocking rate
- pastures
- cattle
- Texas
- soil compaction
- trampling
- Library Collection RecordBest linear unbiased prediction (BLUP) procedures were used to separate genetic merit from environmental effects on 205-d weight (205-d wt) of calves produced by cows grazing 2 pasture systems.…Publication Date 1990-09-01
- liveweight gain
- calves
- continuous grazing
- progeny testing
- breeding value
- best linear unbiased prediction
- genetic effects
- responses
- environmental factors
- heifers
- rotational grazing
- diets
- cattle
- grazing
- New Mexico
- Library Collection RecordShort-duration grazing (SDG) has been purported to increase forage production and utilization compared to other grazing systems, and thus can sustain higher stocking rates. This study was designed to…Publication Date 1990-03-01
- availability
- stocking rate
- pastures
- cattle
- plant density
- Texas
- botanical composition
- grazing
- forage
- Library Collection RecordImproved carrying capacity of grasslands has been attributed to the effect of time-controlled grazing with high animal density, which can be achieved by increased stocking rates as well as by fencing…Publication Date 1990-11-01
- stress response
- mixed pastures
- Festuca
- controlled grazing
- grazing trials
- root systems
- Alberta
- stocking rate
- regrowth
- natural grasslands
- cattle
- prairies
- crop yield
- botanical composition
- grazing
- forage
- Library Collection RecordLitter and organic matter accumulations can reduce soil water through interception of precipitation and subsequent evaporation of absorbed water. Interception varies with mass and water holding…Publication Date 1991-01-01
- particle size distribution
- soil organic matter
- mixed pastures
- water holding capacity
- Festuca
- grazing trials
- Alberta
- natural grasslands
- grazing intensity
- cattle
- prairies
- plant litter
- grazing
- Library Collection RecordIn recent years there has been an increasing emphasis on reestablishment of woody vegetation in degraded riparian zones. In this study we evaluated the influence of grazing and selected site factors…Publication Date 1991-01-01
- shoot cuttings
- salix geyeriana
- crop establishment
- Salix
- water table
- site factors
- riparian buffers
- mortality
- soil water content
- grazing intensity
- plant communities
- California
- cattle
- grazing
- Library Collection RecordAn improved bovine fecal collection harness is described. The harness is durable, adjustable, and comfortable to the animal. The harness has a wide variety of experimental applications. This material…Publication Date 1989-09-01
- feces collection
- cattle
- Library Collection RecordBurning on good to excellent condition tallgrass prairie in central Oklahoma yielded results which visually appeared much greater than would be expected from previous burning research. Therefore, a…Publication Date 1989-01-01
- liveweight gain
- fires
- fire effects
- pastures
- prescribed burning
- Oklahoma
- crude protein
- diet studies
- cattle
- in vitro digestibility
- range management
- grazing
- Library Collection RecordFour yearling steers were trained and observed in a parallel-arm maze. The purpose was to determine if cattle had the ability to associate locations with relative food availabilities. The study…Publication Date 1989-11-01
- spatial memory
- cattle
- maze
- food availability
- Library Collection RecordForty-six clonal lines of a hybrid cross between Pseudoroegneria spicata [Pursh.] Scribn. and Smith × Elytrigia repens [L.] Beauv. were used to evaluate the influence of various chemical and…Publication Date 1989-01-01
- trials
- forage crops
- hybrids
- plant morphology
- pastures
- cattle
- in vitro digestibility
- phenology
- Montana
- grazing
- grasses
- feeding preferences
- chemical constituents of plants
- Library Collection RecordThis paper tests 2 hypotheses regarding the cues cattle use to avoid stepping on crested wheatgrass (Agropyron cristatum (L.) Gaertner) tussocks. The first hypothesis is that cattle are attentive to…Publication Date 1989-09-01
- Agropyron cristatum
- cattle
- Library Collection RecordStocking rate effects on intensive-early stocked Kansas Flint Hills range were studied from 1982 through 1987. Rates were 2X, 2.5X, and 3X normal season-long stocking rates for 200-225 kg steers.…Publication Date 1988-11-01
- carbohydrates
- Kansas
- yields
- stocking rate
- winter
- Andropogon gerardii
- cattle
- rangelands
- grazing
- forage
- Library Collection RecordTall larkspur (Delphinium barbeyi) is a major cause of livestock death on mountain ranges. The influence of plant phenology, grazing site, and rumen fill on tall larkspur consumption was evaluated…Publication Date 1988-11-01
- consumption
- mountains
- mountain areas
- toxicity
- highlands
- site factors
- Delphinium barbeyi
- palatability
- rumen contents
- diet studies
- cattle
- rangelands
- Utah
- poisonous plants
- Library Collection RecordChanges in community composition of 2 grassland sites exposed to a flood of unusual intensity and duration were investigated in the Flooding Pampa. These grasslands are subject almost annually to…Publication Date 1988-11-01
- flora
- plant community analysis
- floodplains
- grasslands
- flooding
- cattle
- Argentina
- botanical composition
- grazing
- forage
- Library Collection RecordThe influence of grazing by cattle on soil bulk density was studied in a typic Natraquoll of the Flooding Pampa of Argentina for a period of 33 months, by comparing a grazed situation to an enclosure…Publication Date 1988-11-01
- pampas
- physicochemical properties
- floodplains
- soil density
- environmental factors
- soil water content
- grazing intensity
- cattle
- Argentina
- grazing
- soil compaction
- bulk density
- trampling
- Library Collection RecordContinuous or pulse doses of Yb-labeled feedstuffs with subsequent fecal sampling can be used to estimate digesta passage rates and fecal output in ruminants. However, the validity of such estimates…Publication Date 1988-09-01
- gastrointestinal motility
- analytical methods
- passage rates
- prediction
- feces composition
- digesta
- cattle
- range management
- rangelands
- feed intake
- Library Collection RecordChanges in liveweight of sedentary and migratory herds of cattle in south Kordofan Province, Sudan, were determined monthly. Feces of these animals were analyzed for N and ADF during the same period…Publication Date 1989-03-01
- Sudan
- feces composition
- body weight
- fiber content
- nitrogen
- cattle
- Library Collection RecordResearch was conducted on the effects of rotational grazing (RG) compared to continuous grazing (CG) on the behavior of cattle grazing on rangelands. Different livestock densities in the RG…Publication Date 1989-07-01
- grazing time
- continuous grazing
- grazing experiments
- stocking rate
- pastures
- rotational grazing
- grazing intensity
- grazing behavior
- spatial distribution
- cattle
- Texas
- Library Collection RecordThis 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…Publication Date 1988-11-01
- Kansas
- liveweight gain
- yields
- stocking rate
- winter
- Andropogon gerardii
- cattle
- rangelands
- grazing
- forage
- Library Collection RecordThe growth and miserotoxin content of Columbia milkvetch (Astragalus miser Dougl. var. serotinus (Gray) Barneby) were examined following grazing of early growth by cows at a grassland site in…Publication Date 1989-09-01
- Astragalus miser
- miserotoxin
- grazing experiments
- cattle
- Library Collection RecordThis study emphasizes short-term management decisions that are made in a yearling cattle operation in northeastern Colorado. Empirical equations describing forage and animal growth were coupled with…Publication Date 1987-07-01
- yearlings
- marketing techniques
- grazing time
- dynamic programming
- optimization
- decision making
- stocking rate
- cattle
- range management
- Colorado
- Library Collection RecordA method for manufacturing esophageal cannulas from plastic tee couplers of suitable size for growing steers and wethers is described. This material was digitized as part of a cooperative project…Publication Date 1988-05-01
- unit costs
- production
- esophageal fistula
- performance
- methodology
- cannulas
- sheep
- cattle
- Library Collection RecordFifteen cattle (236-500 kg) and 38 sheep (36-55 kg) were fitted with 2 types of indwelling cecal cannulae. Cannulae were made of either clear silicone or plastic tubing. The surgery was conducted in…Publication Date 1987-07-01
- silicone tubes
- surgery
- plastic pipes
- cannulas
- cannulation
- sheep
- cattle
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