W. P. McCaughey
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View article: Switchgrass (<i>Panicum virgatum</i> L.) Cultivar Adaptation, Biomass Production, and Cellulose Concentration as Affected by Latitude of Origin
Switchgrass (<i>Panicum virgatum</i> L.) Cultivar Adaptation, Biomass Production, and Cellulose Concentration as Affected by Latitude of Origin Open
Ten cultivars of switchgrass ( Panicum virgatum L.) of northern and southern origins that had demonstrated adaptation to North Dakota were evaluated for biomass production, cellulose concentration, and nutritive value in the southern Canad…
View article: Economic Effects And Energy Use Efficiency Of Incorporating Alfalfa And Fertilizer Into Grass- Based Pasture Systems
Economic Effects And Energy Use Efficiency Of Incorporating Alfalfa And Fertilizer Into Grass- Based Pasture Systems Open
A ten-year grazing study was conducted at the Agriculture and Agri-Food Canada Brandon Research Centre in Manitoba to study the effect of alfalfa inclusion and fertilizer (N, P, K, and S) addition on economics and efficiency of non-renewab…
View article: Fresh, Stockpiled, and Composted Beef Cattle Feedlot Manure
Fresh, Stockpiled, and Composted Beef Cattle Feedlot Manure Open
J. Environ. Qual. 35:1844–1854 (2006).
View article: Potential utilization of native prairie grasses from western Canada as ethanol feedstock
Potential utilization of native prairie grasses from western Canada as ethanol feedstock Open
The utilization of native grass species for potential biomass feedstocks of the emerging ethanol industry requires more information about their cellulose and hemicellulose concentration. Ten native species were grown at seven sites across …
View article: Management strategies to improve cow-calf productivity on meadow bromegrass pastures
Management strategies to improve cow-calf productivity on meadow bromegrass pastures Open
A 4-yr experiment was conducted to determine the effects of fertilization, incorporation of a legume and use of the Rumensin ® -controlled release capsules (CRC) on productivity of cow-calf pairs grazing meadow bromegrass (Bromus bieberste…
View article: Current and residual effects of nitrogen fertilizer applied to grass pasture on production of beef cattle in central Saskatchewan
Current and residual effects of nitrogen fertilizer applied to grass pasture on production of beef cattle in central Saskatchewan Open
Four rates of nitrogen fertilizer (0, 50, 100 and 200 kg N ha -1 ) were applied for 4 yr to two replications of a 32-yr-old crested wheatgrass (Agropyron cristatum) pasture at Lanigan, Saskatchewan, after which no fertilizer was applied fo…
View article: Photoperiod effects on the development of beef heifers
Photoperiod effects on the development of beef heifers Open
Crossbred beef heifers (n = 144) were assigned at weaning (187 ± 14 d of age) by body weight (225 ± 23 kg) and sire breed (British/Continental) to one of two photoperiod treatments from 21 Decem ber 1998 (0 wk) until 10 May 1999 (20 wk): n…
View article: Yield, quality and cost effectiveness of using fertilizer and/or alfalfa to improve meadow bromegrass pastures
Yield, quality and cost effectiveness of using fertilizer and/or alfalfa to improve meadow bromegrass pastures Open
A 4-yr study was conducted to determine the effects of forage type and fertilization on yield and quality of dryland pastures on the Canadian prairies. Pastures contained either meadow bromegrass (Bromus biebersteinii Roem & Schult.) (G) o…
View article: The n-alkane profile of some native and cultivated forages in Canada
The n-alkane profile of some native and cultivated forages in Canada Open
Frage samples were collected from swards growing in Carberry, Manitoba, Brandon, Manitoba, Saskatoon, Saskatchewan, and St. John’s, Newfoundland, and the alkane concentrations were determined by gas chromatography. Considerable differences…
View article: Performance of American Native Grass Cultivars in the Canadian Prairie Provinces
Performance of American Native Grass Cultivars in the Canadian Prairie Provinces Open
Paul G Jefferson, W Paul McCaughey, Ken May, Jay Woosaree, Linden MacFarlane and Scott MB Wright
View article: The effects of gonadotrophin releasing hormone in prostaglandin F<sub>2α</sub>-based timed insemination programs for beef cattle
The effects of gonadotrophin releasing hormone in prostaglandin F<sub>2α</sub>-based timed insemination programs for beef cattle Open
Trials were conducted in the spring (May; n = 324) and fall (October; n = 132) with crossbred continental-type beef cows assigned on the basis of parity and postpartum interval to one of three timed-AI treatments and one of two post-AI tre…
View article: Pasture type and fertilization effects on soil chemical properties and nutrient redistribution
Pasture type and fertilization effects on soil chemical properties and nutrient redistribution Open
Soil samples were collected from beef pastures varying in species composition and fertilizer inputs after being grazed by cow-calf pairs for 4 yr (1995-1998) near Brandon, Manitoba. The objective of this experiment is to examine the impact…
View article: Seed recovery and germination of reseeded species fed to cattle
Seed recovery and germination of reseeded species fed to cattle Open
Cattle have the potential to act as a low cost alternative for seed dissemination of valuable native species. Data collected from this trial was used to compare seed recovery, rate of passage and viability following ingestion and excretion…
View article: Enhancing pasture productivity with alfalfa: A review
Enhancing pasture productivity with alfalfa: A review Open
Alfalfa has been recognized for its superior yield and quality in seeded pastures. However, when grazing immature alfalfa there is a risk of animal losses due to frothy bloat in some ruminant livestock. Inclusion of at least 50% grass in t…
View article: Influence of pasture management on soil biological quality
Influence of pasture management on soil biological quality Open
The long-term sustainability of pasture management systems, whether related to structural stability or nutrient dynamics, is dependent upon maintaining soil biological properties. This study investigates the extent to which the microbiolog…
View article: Carcass evaluation of cattle finished on alfalfa/grass pastures alone or supplemented with barley
Carcass evaluation of cattle finished on alfalfa/grass pastures alone or supplemented with barley Open
Yearling cattle fed pasture-only for the entire grazing season were compared with cattle receiving pasture plus steam-rolled barley (SRB; 4 kg head −1 d −1 ) or pasture plus SRB (4 kg head −1 d −1 ) treated with Tween 80 at a rate of 4 kg …
View article: Nutrient selection by cattle from grass and grass/legume pastures
Nutrient selection by cattle from grass and grass/legume pastures Open
Esophageal fistula and hand-clipped samples were collected from a 32-yr-old crested wheatgrass (Agropyron cristatum L.) pasture and an alfalfa (Medicago sativa L.)/meadow bromegrass (Bromus biebersteinii Roem & Schult.)/Russian wildrye (Ps…
View article: Harvest management and N-fertilization effects on protein yield, protein content and nitrogen use efficiency of smooth bromegrass, crested wheatgrass and meadow bromegrass
Harvest management and N-fertilization effects on protein yield, protein content and nitrogen use efficiency of smooth bromegrass, crested wheatgrass and meadow bromegrass Open
There is a lack of information on the interaction of harvest management, grass species and N-fertilizer interaction on forage quality and nitrogen use efficiency of dryland grasses. In a 3-yr field trial, harvest management (2 cut, hay man…
View article: Grazing system and stocking rate effects on the productivity, botanical composition and soil surface characteristics of alfalfa-grass pastures
Grazing system and stocking rate effects on the productivity, botanical composition and soil surface characteristics of alfalfa-grass pastures Open
A 4-yr experiment was conducted (1991 to 1994) near Brandon, MB, to determine the effects of grazing system (continuous and rotational) and stocking rate [light (1.1 steers ha −1 ); heavy (2.2 steers ha −1 )] on the productivity, botanical…
View article: Effect of grazing system, stocking rate and season of use on diet quality and herbage availability of alfalfa-grass pastures
Effect of grazing system, stocking rate and season of use on diet quality and herbage availability of alfalfa-grass pastures Open
A 3-yr field experiment was conducted (1991–1993) near Brandon, MB to determine the effects of continuous and rotational stocking, both at heavy (2.2 steers ha −1 ) and light (1.1 steers ha −1 ) stocking rates, and of season of use on nutr…
View article: Carcass and organoleptic characteristics of meat from steers grazed on alfalfa/grass pastures and finished on grain
Carcass and organoleptic characteristics of meat from steers grazed on alfalfa/grass pastures and finished on grain Open
Forty-eight pasture-raised steers were fed grain for 0, 33 or 75 d before slaughter. Approximately 69% of steers slaughtered directly off pasture met A-grade standards with the remainder grading B1 due to insufficient marbling. However, a …
View article: ECONOMICS OF N-FERTILIZATION OF DRYLAND GRASSES FOR HAY PRODUCTION IN SOUTHWESTERN MANITOBA
ECONOMICS OF N-FERTILIZATION OF DRYLAND GRASSES FOR HAY PRODUCTION IN SOUTHWESTERN MANITOBA Open
An economic analysis was conducted on N fertilizer response data of four dryland grass species on two soil types. Clay-loam soils were more productive than sandy-loam soils. The N supply required to obtain optimum economic yield was determ…
View article: EFFECT OF PLANT GROWTH REGULATORS AND HARVEST DATE ON YIELD, BOTANICAL COMPOSITION, CHEMICAL CONSTITUTION, INTAKE AND DIGESTIBILITY OF CRESTED WHEATGRASS-ALFALFA HERBAGE BY SHEEP
EFFECT OF PLANT GROWTH REGULATORS AND HARVEST DATE ON YIELD, BOTANICAL COMPOSITION, CHEMICAL CONSTITUTION, INTAKE AND DIGESTIBILITY OF CRESTED WHEATGRASS-ALFALFA HERBAGE BY SHEEP Open
The effects of the plant growth regulators mefluidide (M) and maleic hydrazide (MH) were compared to untreated controls (C) at each of two harvest dates in 1987 (14 Aug. and 14 Sept.) and 1988 (27 June and 25 July). Plant growth regulators…
View article: EFFECT OF GLUCOSE INFUSION ON METABOLIC AND REPRODUCTIVE FUNCTION IN POSTPARTUM BEEF COWS
EFFECT OF GLUCOSE INFUSION ON METABOLIC AND REPRODUCTIVE FUNCTION IN POSTPARTUM BEEF COWS Open
An experiment was conducted to determine if glucose infusion could alter hypothalamic, pituitary or ovarian function in the postpartum (PP) beef cow. Twenty-six cows were assigned randomly at parturition to one of three infusion treatments…