417 Evaluation of Two Grass-Based Implants in a Short Season Summer Grazing Management Practice.

2018 ◽  
Vol 96 (suppl_2) ◽  
pp. 224-224
Author(s):  
J Farney ◽  
M E Corrigan
Keyword(s):  
Management Practice ◽  
Grazing Management ◽  
Short Season ◽  
Summer Grazing

Summer Grazing Management of a White Clover-Bahiagrass Pasture: Legume Survival

1986 ◽  
Vol 22 (4) ◽  
pp. 363-371 ◽  
Author(s):  
B. H. Dzowela ◽  
G. O. Mott ◽  
W. R. Ocumpaugh
Keyword(s):  
White Clover ◽  
Seedling Recruitment ◽  
Grazing Pressure ◽  
Grazing Management ◽  
Primary Mechanism ◽  
Heavy Grazing ◽  
Seed Reserves ◽  
Survival Potential ◽  
Summer Grazing ◽  
Pasture Legume

SUMMARYA grazing management study involving the new white clover cultivar Osceola grown in association with Bahiagrass cv. Pensacola was conducted on wet and dry sites with and without pesticide/herbicide treatment. A combination of heavy grazing pressure and a short deferment period before grazing during the summer and autumn resulted in the largest soil seed reserves and seedling recruitment by the white clover component. However, maximum survival of plants was recorded from a combination of a short deferment period and moderate grazing pressure.A slight increase in plant survival and seedling recruitment was shown on the wet site. Survival potential was least in pasture treated with pesticide and herbicide. Heavy grazing pressure and short deferment periods appear essential for the survival of the clover component. Annual seedling recruitment from soil seed reserves was the primary mechanism of white clover survival from spring to spring in pasture associations based on tropical bahiagrass.

Clearcutting Brazilian caatinga: assessment of a traditional forest grazing management practice

1987 ◽  
Vol 5 (4) ◽  
pp. 429-441 ◽  
Author(s):  
R. D. Kirmse ◽  
F. D. Provenza ◽  
J. C. Malechek
Keyword(s):  
Management Practice ◽  
Grazing Management ◽  
Forest Grazing

scholarly journals Grazing management influences on seasonality and performance of ryegrass and red clover in a mixture

1985 ◽  
pp. 71-76 ◽  
Author(s):  
G.P. Cosgrove ◽  
R.W. Brougham
Keyword(s):  
Species Composition ◽  
White Clover ◽  
Plant Density ◽  
Red Clover ◽  
Grazing Management ◽  
Total Production ◽  
And Performance ◽  
Clover Pasture ◽  
Summer Grazing ◽  
Clover Plant

Grazing management influences on the production and species composition of a ryegrass, red and white clover pasture were evaluated over 3 years. Pastures were grazed by cattle frequently in either winter or summer and infrequently for the remainder of the year or grazed infrequently all year. Frequency was determined by the height of herbage pre-grazing and was lo-12 cm for frequent grazing and 15-20 cm for infrequent grazing. Annual herbage production of 15.1 t DM/ha was not influenced by grazing management but seasonal production was. Management caused both instantaneous and longer term effects on production of component species. Lower summer production because of frequent grazing in that season resulted from a reduction in red clover production from 2.75 to 1.3 t DM/ha. However, ryegrass production in spring was increased by 60% and in summer it was more than doubled by this grazing treatment. Frequent grazing in winter also increased ryegrass and reduced red clover production in summer compared with infrequent grazing all year but had no effect on ryegrass production in spring. Red clover plant density was unaffected by the different grazing managements imposed for two and a half years but subsequently was lower under frequent summer grazing. Red clover dominance in summer and its effect on ryegrass production in spring can be controlled by more frequent grazing in summer and a more even species balance results. Emphasis on spring or summer production can be achieved through grazing management without affecting total production. Keywords: Red clover, ryegrass, grazing frequency, cattle grazing, herbage production, seasonal production

Differences among orchardgrass cultivars in response to hay and rotational grazing management

1995 ◽  
Vol 75 (1) ◽  
pp. 147-157 ◽  
Author(s):  
Y. A. Papadopoulos ◽  
M. A. Price ◽  
L. F. Laflamme ◽  
N. R. Fulton ◽  
G. M. Hunter ◽  
...  
Keyword(s):  
Management Practice ◽  
Block Design ◽  
Grazing Management ◽  
First Year ◽  
Rotational Grazing ◽  
Pasture Management ◽  
Area Index ◽  
Cultivar Development ◽  
Dactylis Glomerata L ◽  
Tiller Density

This study was conducted to compare orchardgrass (Dactylis glomerata L.) cultivar performance under contrasting management systems (hay vs. rotational grazing) during the first two production years. The trial consisted of eight orchardgrass cultivars broadcast seeded in a randomized complete-block design, with three replications. The perimeter of each replication was fenced, and the area was divided into two sections. The first section was managed as a simulated hay production system. The second section was managed by simulating a rotational grazing system using crossbred ewes. Dry matter (DM) yield was determined before harvesting or grazing. Tiller density (TD) and leaf area index (LAI) were measured on four cultivars prior to harvesting and grazing. Excellent DM yield and persistence were obtained from all cultivars in both years under hay management but varied considerably under grazing management. Cultivar ranking according to DM yield under hay management was different from ranking based on performance under pasture management. One group of four cultivars had a decrease in yield of 19.9% in the second year of grazing, over the first year, but yield of the remaining group increased by 5.7% (SED = 9.83). Production of hay was similar for both groups. Early-maturing cultivars yielded 7% more DM and had higher crop growth rates (CGR), LAI and TD than late-maturing cultivars. Growth characteristics of orchardgrass cultivars as measured by DM yield, CGR, LAI and TD were modified by management practice. As a result, evaluating orchardgrass varieties under a hay management system was not effective in determining their performance under grazing. Key words:Dactylis glomerata, cultivar evaluation, cultivar development, grazing, yield, yield components

Livestock grazing management and biodiversity conservation in Australian temperate grassy landscapes

2004 ◽  
Vol 55 (3) ◽  
pp. 279 ◽  
Author(s):  
J. Dorrough ◽  
A. Yen ◽  
V. Turner ◽  
S. G. Clark ◽  
J. Crosthwaite ◽  
...  
Keyword(s):  
Biodiversity Conservation ◽  
Environmental Sustainability ◽  
Management Practices ◽  
Current Knowledge ◽  
Management Practice ◽  
Management Strategies ◽  
Livestock Grazing ◽  
Grazing Management ◽  
Grazing Strategies

There is an increasing interest in the development of livestock grazing management strategies that achieve environmental sustainability and maintain or improve the long-term production capacity of commercial grazing systems. In temperate Australia, these strategies are generally focussed on reducing perennial pasture decline, soil loss, acidity, and salinity. An additional challenge facing land managers and researchers is developing grazing strategies that also maintain and enhance local and regional biodiversity. However, few studies have assessed the compatibility of management practices for maintaining long-term productivity and biodiversity conservation. We still have only a very basic understanding of the effects of different grazing strategies and pasture management on biodiversity and this is a major impediment to the development of appropriate and compatible best management practice. We argue that although there is an increasing desire to find management strategies that protect and enhance biodiversity without hindering long-term agricultural production, in many cases this may not be possible. Current knowledge suggests that compatibility is most likely to be achieved using low-input systems in low productivity (fragile) landscapes, whereas in highly productive (robust) landscapes there is less opportunity for integration of productive land-use and biodiversity conservation. There is an urgent need for improved communication and collaboration between agronomic and ecological researchers and research agencies to ensure that future programs consider sustainability in terms of biodiversity as well as pasture and livestock productivity and soil and water health.

scholarly journals Antioxidant activity, bioactive polyphenols in Mexican goats' milk cheeses on summer grazing

2009 ◽  
Vol 77 (1) ◽  
pp. 20-26 ◽  
Author(s):  
Mario Cuchillo Hilario ◽  
Claudia Delgadillo Puga ◽  
Arturo Navarro Ocaña ◽  
Fernando Pérez-Gil Romo
Keyword(s):  
Antioxidant Activity ◽  
Functional Food ◽  
Polyphenolic Compounds ◽  
Grazing Management ◽  
Feeding System ◽  
Total Polyphenol ◽  
Group A ◽  
Group B ◽  
Summer Grazing ◽  
Feeding Systems

Two feeding systems trials were carried out to determine the antioxidant activity of soft goats' milk cheeses, and also to evaluate the presence of bioactive polyphenolic compounds. Two groups (A and B), each one with 20 (BW 50±5 kg) French Alpine goats were employed. All animals had between 70 to 80 milking days and were milked once a day. Group A included daily grazing on shruby rangeland vegetation, and group B was kept in full indoor confinement. Thirty kg of goats' milk from each group were collected; 15 kg from each were pasteurized and the remaining 15 kg were not pasteurized (raw), resulting in four treatments (two feeding system×two milk treatments). Soft goat's cheese antioxidant activity can be modified by the animals feeding system; grazing management represents a better option than indoor feeding to produce a healthy profile of bioactive compounds; providing an increase of total polyphenol, hydroxycinnamic acids and flavonoid concentrations. Pasteurization did have a significant effect on these metabolites, and diminished total polyphenol concentration. More research is needed to elucidate the potential of soft goat's cheese as a functional food.

Birdsfoot trefoil (Lotus corniculatus) and greater lotus (Lotus uliginosus) in perennial pastures in eastern Australia. 1. Effects of grazing management on persistence

2006 ◽  
Vol 46 (4) ◽  
pp. 503 ◽  
Author(s):  
J. F. Ayres ◽  
M. J. Blumenthal ◽  
J. W. O'Connor ◽  
L. A. Lane ◽  
H. I. Nicol
Keyword(s):  
Management Practice ◽  
Lotus Corniculatus ◽  
Grazing Management ◽  
South Coast ◽  
North Coast ◽  
Birdsfoot Trefoil ◽  
Severe Drought ◽  
Grazing Experiment ◽  
Eastern Australia ◽  
Lotus Uliginosus

A study was undertaken in the Perennial Pasture Zone in New South Wales, Australia, to investigate the potential of lotus-based pastures (greater lotus, Lotus uliginosus Schukr.; birdsfoot trefoil, Lotus corniculatus L.) to improve grazing production. The study was based on a methodology that combined a grazing experiment to determine the effects of grazing management on lotus persistence, with a co-learning phase to assess the adaptation and applications of lotus across the high rainfall zone. The present paper reports on the grazing experiment that was replicated in 4 regions (North Coast, South Coast, Northern Tablelands, Southern Tablelands) and that included combinations of grazing strategy (summer rest, autumn rest, 14-day spell or 28-day spell), grazing intensity (low or high herbage mass), Lotus species and cultivar (L. uliginosus cvv. Grasslands Maku, Sharnae; L. corniculatus cv. Grasslands Goldie or ‘Spanish’ breeding line) and companion grass (sown or volunteer) treatments. The experiment provided results for the establishment and botanical presence of both Lotus species, and the expression of their persistence mechanisms in these 4 environments. Greater lotus cv. Grasslands Maku established best under coastal conditions and birdsfoot trefoil cv. Grasslands Goldie established best under tablelands conditions. The degree of nodulation of greater lotus cv. Sharnae and birdsfoot trefoil cv. Grasslands Goldie was less than nodulation of greater lotus cv. Grasslands Maku, but nodulation had no apparent effect on seedling vigour. The population density of all Lotus cultivars declined substantially at the North Coast, South Coast and Southern Tablelands sites during severe drought conditions. However, both birdsfoot trefoil cv. Grasslands Goldie and greater lotus cv. Grasslands Maku remained relatively stable at the Northern Tablelands site with greater lotus cv. Grasslands Maku maintaining 20–40% presence and birdsfoot trefoil cv. Grasslands Goldie retaining 30–50% presence, depending on time of year. In general, there was little effect of grazing management practice on arresting the decline in lotus presence due to drought, or on enhancing the regeneration processes associated with lotus persistence.

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