Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Life Sciences

Grazing

Institution
Publication Year
Publication
Publication Type
File Type

Articles 1 - 30 of 644

Full-Text Articles in Entire DC Network

Socio-Economic And Climate Change In Mongolia - Effects On Grassland Ecosystems, C Opp Jun 2024

Socio-Economic And Climate Change In Mongolia - Effects On Grassland Ecosystems, C Opp

IGC Proceedings (1997-2023)

In Mongolia, in combination with strong changes of the whole society during the past 76 years, from the feudal system to socialism and from the socialist system of planned development to the market economy, there are a lot of changes in the use of natural resources all over the country. In consequence of this a lot of effects on grassland ecosystems, caused by socio-economic and climate driving factors, were observed and studied in different scales: zonal, regional, local.


Forage Production And Performance Of Beef Yearlings Grazing Diploid And Tetraploid Crested Wheatgrass, J D. Bruynooghe, R.D H. Cohen, N W. Holt, P G. Jefferson Jun 2024

Forage Production And Performance Of Beef Yearlings Grazing Diploid And Tetraploid Crested Wheatgrass, J D. Bruynooghe, R.D H. Cohen, N W. Holt, P G. Jefferson

IGC Proceedings (1997-2023)

A series of experiments were conducted during 1994 and 1995 at Swift Current, Saskatchewan, Canada to evaluate forage production and animal performance on tetraploid Kirk (Agropyron cristatum (L.) Gaertn.) and diploid Fairway (Agropyron cristatum (L.) Gaertn.) crested wheatgrass pastures under grazing conditions imposed by beef (Bos taurus) yearling steers at four stock density levels (3, 4, 6 and 8 steers ha-1). Total ungrazed forage production for Kirk was greater (<0.05) than Fairway (6302 kg ha-1 vs. 5235 kg ha-1) in 1994 but less (P<0.05) than Fairway in 1995 (3709 kg ha-1 vs. 4633 kg ha-1). Animal performance (average daily gain, animal grazing days and total animal production) did not differ (P>0.05) for steers grazing either Kirk or Fairway pastures. Plant vigour and available energy reserves following one season of grazing were evaluated through etiolated growth with …


Vertical Distribution In Grass Swards: Interactions Between Dry Matter And Nutritional Quality, D R. Buckmaster, R H. Mohtar, S L. Fales Jun 2024

Vertical Distribution In Grass Swards: Interactions Between Dry Matter And Nutritional Quality, D R. Buckmaster, R H. Mohtar, S L. Fales

IGC Proceedings (1997-2023)

A field experiment was conducted to study the distribution of mass and quality over plant height throughout the growing season in a pure stand of orchardgrass (Dactylis glomerata L.). When plant density (expressed as kg DM/ha per cm height) is plotted against a height of strata, all treatments show a similar linear shape distribution. ADF and NDF concentrations declined with sward height. Fall treatments had lower ADF and NDF concentrations than summer treatments. Conversely, CP concentrations showed an increase with plant height. Fall treatments showed higher CP than spring and summer treatments. Defoliation management did not affect orchardgrass quality. …


Application Of The Phygrow Forage Production- Runoff Model For Regional Stocking Analysis, J W. Stuth, J R. Conner, W T. Hamilton, D M. Schmitt Jun 2024

Application Of The Phygrow Forage Production- Runoff Model For Regional Stocking Analysis, J W. Stuth, J R. Conner, W T. Hamilton, D M. Schmitt

IGC Proceedings (1997-2023)

A hydrologic-based forage production model, PHYGROW, was used to simulate forage production and carrying capacity of a subtropical shrubland complex of over 34 species grazed by various ratios of cattle and goats with a population of indigenous white-tailed deer over a 20-yr simulated weather profile. The diet selection algorithm allowed the three animal populations to selectively graze preferred foods based on preferences of plant species, plant parts, and live:dead status by phenological stage. A level of maximum utilization of key species was specified. An incremental analysis of cattle:goat demand ratio was analyzed to determine how different combinations of livestock were …


Using Nested Paddocks To Study Multiple-Paddock Grazing Systems, B E. Anderson, W W. Stroup, W H. Schacht Jun 2024

Using Nested Paddocks To Study Multiple-Paddock Grazing Systems, B E. Anderson, W W. Stroup, W H. Schacht

IGC Proceedings (1997-2023)

There is insufficient information to guide development of multiple paddock grazing systems. Measuring vegetation responses to grazing period/recovery period intervals is prohibitively expensive when using most grazing research designs. Nested paddock designs reduce land area, number of herds, and number of paddocks needed for comparisons. Nested paddocks permit comparisons of animal performance among whole pasture treatments but comparisons are limited for animal performance differences among grazing/recovery period lengths. Nonetheless, nested paddock designs efficiently document vegetation responses to grazing intervals, which may permit predictions of animal performance.


Relationship Between Broadleaf Dock (Rumex Obtusifolius L.) And Seasonal Yield Of Orchardgrass Grazed Pasture, Y Iijima, Y Kurokawa, T Monya, Y Suzuki Jun 2024

Relationship Between Broadleaf Dock (Rumex Obtusifolius L.) And Seasonal Yield Of Orchardgrass Grazed Pasture, Y Iijima, Y Kurokawa, T Monya, Y Suzuki

IGC Proceedings (1997-2023)

In order to grasp the ecology of R. obtusifolius and the effects of it on seasonal yield of grass in grazing pasture, we investigated seasonal sward characteristics and dry matter yield in grazing pasture. Dry matter yield and coverage of R. obtusifolius predominated those of grass after mid-June and mid-August, respectively. Throughout the year the coverage of R. obtusifolius negatively correlated to the grass yield. After August, the grass yield was negatively related to the yield and the population density of R. obtusifolius. From the facts described above, R. obtusifolius seems to reduce grass yield throughout the year, especially …


Validation Of Arachis Pintoi As A Forage Legume In Commercial Dual Purpose Cattle Farms In Forest Margins Of Colombia, C E. Lascano, G A. Ruiz, J Valasquez, J Rozo Jun 2024

Validation Of Arachis Pintoi As A Forage Legume In Commercial Dual Purpose Cattle Farms In Forest Margins Of Colombia, C E. Lascano, G A. Ruiz, J Valasquez, J Rozo

IGC Proceedings (1997-2023)

An on-farm pilot project was initiated in the Andean piedmont of the Amazon basin in Caquetá, Colombia to determine the contribution of the forage peanut Arachis pintoi (CIAT 17434) introduced in degraded pastures to animal production and soil improvement. Early results show that milk production in dual purpose cattle farms can be increased by 20% with A. pintoi-based pastures. However, to enhance adoption of the legume by farmers there is a need to make adjustments on pasture management and assure supply of high quality seed in the region.


Agri-21: Sustainable Farming Demonstration, M Rasnake, W R. Burris, G D. Lacefield Jun 2024

Agri-21: Sustainable Farming Demonstration, M Rasnake, W R. Burris, G D. Lacefield

IGC Proceedings (1997-2023)

On-farm demonstrations were established in 1993 to demonstrate the technology required to conduct a profitable and sustainable farming operation into the 21st Century. These were part of a cooperative program between the Tennessee Valley Authority (TVA) and Land Grant Universities in the seven states of the TVA region. Four demonstrations were established in Kentucky. A beef farm in west Kentucky will be used to illustrate the project. This farm improved crop and livestock management, record keeping and environmental stewardship. Their goal is to increase farm profitability while improving the soil and water resources.


Roles Of Clovers In Southeast U.S.A Pastures, G D. Lacefield, D M. Ball, J C. Henning, M Rasnake Jun 2024

Roles Of Clovers In Southeast U.S.A Pastures, G D. Lacefield, D M. Ball, J C. Henning, M Rasnake

IGC Proceedings (1997-2023)

Grasses dominate pastures in the Southeast U.S.A.; research and farmer experience have shown that the addition of legumes to grass dominant pastures can improve environmental, agronomic and animal parameters. Legumes grown in mixtures with grasses can increase yield, improve forage quality and animal performance, convert atmospheric nitrogen into a form useable by plants, extend the grazing season, and offset certain animal disorders. As livestock producers continue to strive for more sustainable feed production and utilization programs with greater emphasis on grazing, legumes will play an even greater role in Southeast U.S.A. agriculture.


The Role Of Tagasaste (Chamaecytisus Proliferus) In Farming Systems Of Southern Australia, E C. Lefroy, A K. Abadi Ghadim, N J. Edwards, M A. Ewing Jun 2024

The Role Of Tagasaste (Chamaecytisus Proliferus) In Farming Systems Of Southern Australia, E C. Lefroy, A K. Abadi Ghadim, N J. Edwards, M A. Ewing

IGC Proceedings (1997-2023)

Farm scale economic analysis of a recently developed alley cropping system based on the fodder shrub tagasaste (Chamaecytisus proliferus) was carried out using the optimising model MIDAS. The model was used to assess the potential application of this new farming system to infertile sandplain soils in southern Australia by comparing the profitability of improved serradella based annual pasture (Ornithopus compressus and O. sativa), tagasaste in plantations and tagasaste alley cropping. The third option was the most profitable, increasing sheep carrying capacity by 76% and resulting in 45% of the model farm being planted to tagasaste alley …


Short-Term Effects Of Grazing And Rest Treatments On The Seed Banks Of Two Contrasting Sites In The Semiarid Pampas, Argentina, M O. Aguilera, M M. Marchi, O Terenti Jun 2024

Short-Term Effects Of Grazing And Rest Treatments On The Seed Banks Of Two Contrasting Sites In The Semiarid Pampas, Argentina, M O. Aguilera, M M. Marchi, O Terenti

IGC Proceedings (1997-2023)

The germinable seed bank was characterized in relation to season, grazing, and site type at southcentral San Luis, Argentina. Vegetation is typical of the semiarid western extreme of the Pampas grasslands. Our objective was to evaluate the effect of grazing and rest during the growing season on seed banks for two contrasting sites. Seed banks were sampled twice, in spring and fall. In each date, soil cores were obtained in sanddune and flat sites, for pastures grazed or that remained ungrazed during the growing season. Soil was spread in trays under suitable conditions for germination. Evaluations were done on total …


Native Grasses In The Pilbara Region, Australia; Resource Acquisition, Allocation And Growth, L J. Ingram, L T. Bennett, M A. Adams Jun 2024

Native Grasses In The Pilbara Region, Australia; Resource Acquisition, Allocation And Growth, L J. Ingram, L T. Bennett, M A. Adams

IGC Proceedings (1997-2023)

Biomass production and nitrogen content of the native perennial grasses, Barley Mitchell grass (Astrebla pectinata ) and Kangaroo grass (Themeda triandra), were studied over the 1996 growing season. After 160 mm of rain, the biomass of T. triandra increased from 2 to 4 t/ha, while A. pectinata increased from 1.1 to 1.5 t/ha. N in aboveground biomass of T. triandra increased from 14.5 to 17 kg/ha and of A. pectinata from 8.5 to 10 kg/ha. A. pectinata leaves senesced quickly increasing the total amount of N in dead leaves. T. triandra senesced more slowly but dead leaves …


Leucaena Leucocephala As A Supplement For Goats On Tropical Pastures, T Clavero, R Razz Jun 2024

Leucaena Leucocephala As A Supplement For Goats On Tropical Pastures, T Clavero, R Razz

IGC Proceedings (1997-2023)

A field experiment was conducted in the dryland farming area of Northwest Venezuela in order to evaluate three diets in grazing goats (pasture only; grazing pasture + 0.3 kg of commercial concentrate/ animal/d; grazing pasture + restricted grazing for 2 hours daily in Leucaena leucocephala) on milk production (mp) and milk composition (fat -f- and mineral concentration -mc-). The experiment was laid out as randomized block design. The data showed significant difference (P<0.05) between treatments. Milk production increased in 50 and 70% when goats had access to commercial concentrate or Leucaena graizing as well as grass pasture compared with the control treatment. Milk production in goats with access to Leucaena was insignificantly different than goats on concentrate. Treatments did not affect milk composition. The results suggest that Leucaena leucocephala can supply an adequate amount of nutrient with similar value to commercial concentrate for milk production in grazing goats.


Monitoring The Stabilization Of Semi-Arid Grassland In The Bridge Creek Watershed Of Central Oregon, R Demmer, L Andrews, B Keller Jun 2024

Monitoring The Stabilization Of Semi-Arid Grassland In The Bridge Creek Watershed Of Central Oregon, R Demmer, L Andrews, B Keller

IGC Proceedings (1997-2023)

Using land exchanges the Bureau of Land Management (BLM) in central Oregon consolidated its land base in the Bridge Creek Watershed between 1987 and 1992 to obtain a 64,500 acre land block. The uplands had been grazed and the valley bottoms farmed since the middle 1800s. Due to improper grazing, primitive irrigation, fire suppression and juniper invasion, the native vegetation was sparse. Weeds were ubiquitous, and soils were eroded. The results of actions taken after baseline inventories of riparian and range communities were monitored. This feedback prompted further actions. Monitoring confirms that increasing native vegetation and decreasing erosion is stabilizing …


Dryland Grazing Evaluation Of Grasslands Gala Grazing Brome, B L. Sutherland Jun 2024

Dryland Grazing Evaluation Of Grasslands Gala Grazing Brome, B L. Sutherland

IGC Proceedings (1997-2023)

Grasslands Gala grazing brome (Bromus stamineus), was evaluated for seasonal production and persistence under dryland conditions. Gala was compared with cultivars from three different Bromus species and a high endophyte ryegrass, under three sheep grazing managements which varied in duration and intensity. Seasonal herbage yields indicated that Gala persisted under all managements, but was more productive under short and medium rotation grazing than long rotation lax grazing. Results of this five year evaluation indicate that Gala compares favourably with existing cultivars, with its broad range of tolerances making it a desirable option as a perennial in temperate dryland pastoral …


Productivity Of Grasses In A Pasture In The Cerrado Area Of The "Triangulo Mineiro", I F. Andrade, M A. Oliveira Jun 2024

Productivity Of Grasses In A Pasture In The Cerrado Area Of The "Triangulo Mineiro", I F. Andrade, M A. Oliveira

IGC Proceedings (1997-2023)

A grazing trial using guinea and coloniao (Panicum maximum), setaria (Setaria sphacelata), andropogon (Andropogon gayanus), and signalgrass (Brachiaria decumbens) was conducted during three grazing cycles: 1st cycle - Apr. 5, 1984 to Jul. 23, 1984; 2nd - Dec. 4, 1984 to Oct. 30, 1985 and 3rd - Jan. 16, 1986 to Jan. 15, 1987. It was also used with four stocking rates- T1= 0.8, T2= 1.0, T3= 1.2, and T4= 1.4 animal units/ha (AU/ha). In the 2nd period signalgrass was discarded because of poor condition of the pastures, and in the last grazing cycle …


Grass-Legume Mixtures Under Grazing, R D. Amendola Massiotti, C Garcia Alvarez, J Juarez Ramirez Jun 2024

Grass-Legume Mixtures Under Grazing, R D. Amendola Massiotti, C Garcia Alvarez, J Juarez Ramirez

IGC Proceedings (1997-2023)

Nine grass-legume mixtures were evaluated during their first year. A factorial experiment was carried out using a complete block design. Herbage on offer and residual herbage were estimated allowing calculation of net herbage production, herbage accumulation rate and grazing efficiency. The mixture of alfalfa (Medicago sativa L.) and orchard grass (Dactylis glomerata L.) with a net herbage production of 22 407 kg dry matter (DM) per ha outyielded white clover (Trifolium repens L.) mixtures. Substitution of alfalfa by white clover in the mixtures resulted in reduction of herbage accumulation rate by 19 kg DM ha-1 day-1 . …


Competition Between Oats And Annual Ryegrass Under Grazing, R D. Amendola Massiotti, B Morales Mendez Jun 2024

Competition Between Oats And Annual Ryegrass Under Grazing, R D. Amendola Massiotti, B Morales Mendez

IGC Proceedings (1997-2023)

A replacement series experiment was carried out at Chapingo, México aimed to study the seasonal evolution of growth rates of oats (Avena sativa L.) and annual ryegrass (Lolium multiflorum L.) in monocultures and mixtures. Three grazing cycles took place in a period of 181 days. Herbage mass on offer and residual herbage mass were measured, allowing the calculation of herbage accumulation rates. Aggressiveness of oats was higher during the first 105 days growth period, later in the season annual ryegrass was more aggressive than oats. The advantage of the mixture compared to monocultures, depends on a more efficient …


Bermudagrass Pastures Under Long-Term Stocking Rates And Fertility Regimes, F M. Rouquette Jr, G R. Smith, V A. Haby Jun 2024

Bermudagrass Pastures Under Long-Term Stocking Rates And Fertility Regimes, F M. Rouquette Jr, G R. Smith, V A. Haby

IGC Proceedings (1997-2023)

After 16 years of grazing ‘Coastal’ and common bermudagrass [Cynodon dactylon (L.) Pers.] pastures each at 3 levels of forage mass, N vs non-N fertilizer was superimposed to assess stand maintenance of bermudagrass and cow-calf performance. After 7 additional years of fertility treatments, N plus overseeded ryegrass (Lolium multiflorum Lam.) provided for 202 days grazing; whereas, K plus overseeded clovers (Trifolium incarnatum L.) and (T. vesiculosum Savi.) provided adequate forage for 179 days grazing. Coastal supported higher stocking rates (2.3 to 7.9 680-kg animal units(AU)/ha) than common bermudagrass (2.0 to 5.3 AU/ha). Suckling calf daily gains …


Effects Of Grazing Damage On White Clover Stolon Morphology, J R. Caradus, D F. Chapman Jun 2024

Effects Of Grazing Damage On White Clover Stolon Morphology, J R. Caradus, D F. Chapman

IGC Proceedings (1997-2023)

In two trials the effect of white clover stolon growing point removal due to grazing damage by sheep on stolon growth and morphology was investigated. Damage to the main stolon growing point did not affect stolon branch appearance rate, so that with a reduced node appearance rate on main stolons there was an increased proportion of nodes branching on damaged stolons. Compensatory growth by branch stolons after main stolon growing point removal occurred when measured as stolon elongation rate.


Effects Of Grazing And Mowing On Leymus Chinensis Grassland In The Songnen Plain Of Northeastern China, R Z. Wang, E A. Ripley Jun 2024

Effects Of Grazing And Mowing On Leymus Chinensis Grassland In The Songnen Plain Of Northeastern China, R Z. Wang, E A. Ripley

IGC Proceedings (1997-2023)

Effects of mowing and grazing on a Leymus chinensis grassland in the Songnen plain of northeastern China were studied using eight replicates of four grazing and mowing treatments. Canopy cover and biomass of the dominant species (L. chinensis) were lower, and cover of the halophyte Suaeda corniculata higher, on grazed than ungrazed; ungrazed plots showed a response to mowing, but not grazing; species diversity increased with grazing and mowing. This study found dissimilar effects of grazing and mowing on plant populations, canopy biomass and structure in L. chinensis grassland. Possible interactions between the principal disturbances on the grassland are …


Productivity Of Pasture Consisting Of Both Unimproved And Improved Areas In Aso Region Of Kyushu District, C Okamoto, K Kabata, K Tsuji, M Kikuchi Jun 2024

Productivity Of Pasture Consisting Of Both Unimproved And Improved Areas In Aso Region Of Kyushu District, C Okamoto, K Kabata, K Tsuji, M Kikuchi

IGC Proceedings (1997-2023)

Productivity of pasture consisting of both unimproved and improved areas was investigated in terms of conversion efficiency of solar energy into products and nutrient intake of animal. It was shown that animal production is mainly supported by the improved area in spring and late-autumn while the production is supported together by both areas in summer by reasons of increases in productivity of the unimproved area and productive depression in the improved area. CP/DE balance of grazed herbage was close to the requirement ofthe animal in the case where the unimproved area was grazed with the improved area rather than in …


Manipulation Of Botanical Composition Of Native Pastures By Grazing In Temperate South-East Australia, D L. Garden, D A. Friend, P M. Dowling, G M. Lodge Jun 2024

Manipulation Of Botanical Composition Of Native Pastures By Grazing In Temperate South-East Australia, D L. Garden, D A. Friend, P M. Dowling, G M. Lodge

IGC Proceedings (1997-2023)

Historical evidence indicates that substantial changes have occurred in the botanical composition of native pastures in temperate southeast Australia as a result of grazing by sheep and cattle. However, the resulting pastures now appear to be relatively stable and there has been limited success in changing composition experimentally. This paper reports the results of experiments conducted at four locations in south-east Australia designed to increase the proportion of desirable species in native pastures by grazing management.


Disturbance By Mechanical Phosphorous Fertilization On The Cover And Biomass Of Humid Alkaline Communities Of The Flooding Pampa (Argentina), O E. Ansin, E M. Oyhamburu, J L. Delgado Caffe Jun 2024

Disturbance By Mechanical Phosphorous Fertilization On The Cover And Biomass Of Humid Alkaline Communities Of The Flooding Pampa (Argentina), O E. Ansin, E M. Oyhamburu, J L. Delgado Caffe

IGC Proceedings (1997-2023)

Experiments were carried out in order to evaluate the impact of mechanical perturbations, phosphorous fertilization and grazing on the native grasslands. Six treatments were tested: three without grazing and three subjected to grazing. Both situations were plowed, plowed plus fertilization or kept untreated. During the study botanical composition, vegetative cover, species diversity and above ground biomass were measured. Plowed and plowed plus fertilization treatments drastically reduce all of these parameters related to community structure and forage production. These figures contrasted with the non-perturbated treatments, were values did not change significantly from the original state. Mechanical perturbations provoked reductions on grassland …


Effect Of Cattle Grazing On The Aridity Level Of Humid Halomorphic Grass Communities Of The Flooding Pampa (Argentina), O E. Ansin, V A. Deregibus Jun 2024

Effect Of Cattle Grazing On The Aridity Level Of Humid Halomorphic Grass Communities Of The Flooding Pampa (Argentina), O E. Ansin, V A. Deregibus

IGC Proceedings (1997-2023)

The Argentine Flooding Pampa is a large humid rangeland, severely deteriorated by cattle grazing, to the point of causing the local extinction of many native grasses and important alterations in ecosystem function. Among grassland communities exist those that vegetate halomorphic soils, highly degraded due continuous grazing by domestic herbivores causing soil denudation and increased aridity. An alternate grazing method, that controls the periodicity and moment of important rest periods followed by disturbance events, should increase cover and favor water availability. This succession process will determine more vigorous and abundant foraging species in the degraded communities. After six years of controlled …


Proximity Of Water Affects Grazing Distribution And Soil Nutrient Cycling, J R. Gerrish, P R. Peterson, F A. Martz Jun 2024

Proximity Of Water Affects Grazing Distribution And Soil Nutrient Cycling, J R. Gerrish, P R. Peterson, F A. Martz

IGC Proceedings (1997-2023)

A three-year study was conducted to quantify the effects of travel distance to water on pasture utilization rate and soil nutrient gradients. A 64 ha unit was divided into 16 4 ha pastures having maximum travel distances ranging from 250 to 450 m. Temporal utilization rate (UR) and soil nutrient levels were determined at 30 m intervals beginning at the water source. Temporal UR significantly declined beyond 250 m in all pastures having travel distances exceeding 250 m while pastures with less than 250 m travel distance were uniformly grazed. Increased nutrient level gradients beginning within 60 m of water …


Can Forages Reduce Nitrate Leaching Losses From Mixed Cropping Rotations In New Zealand?, G S. Francis, K M. Bartley, F J. Tabley Jun 2024

Can Forages Reduce Nitrate Leaching Losses From Mixed Cropping Rotations In New Zealand?, G S. Francis, K M. Bartley, F J. Tabley

IGC Proceedings (1997-2023)

The objective of this two-year experiment was to determine the ability of forages grown as winter cover crops to reduce nitrate leaching losses after temporary leguminous pastures were ploughed. In both years, cover crops reduced cumulative leaching losses compared with bare fallow and were most effective when sown early in the autumn. When large amounts of residues with relatively low N concentrations were incorporated in the soil in the spring, there was extensive net N immobilisation that suppressed the yield of the following wheat test crop. When cover crops were grazed, the N consumed by sheep as herbage was returned …


Nitrogen Leaching From Dairy Pastures In The Northeast United States, W L. Stout, G F. Elwinger, S L. Fales, L D. Muller, R R. Schnabel, W E. Priddy Jun 2024

Nitrogen Leaching From Dairy Pastures In The Northeast United States, W L. Stout, G F. Elwinger, S L. Fales, L D. Muller, R R. Schnabel, W E. Priddy

IGC Proceedings (1997-2023)

While intensive grazing has the potential to increase dairy farm profitability in the Northeast United States, the uneven recycling of N through feces and urine can increase NO3 - leaching. We measured NO3 - leaching loss from urine and feces beneath N-fertilized orchardgrass using 60 cm diameter by 90 cm deep drainage lysimeters. Mean NO3-N levels in leachate beneath these areas were 3.8, 6.5, 93.5, 110 and 139 mg l-1 for the control, feces, and spring, summer and fall applied urine. Extrapolation of the leaching data over a grazed landscape indicates that a grazing intensity for a 180-day grazing season …


Participative Management And Rehabilitation Of The Village Common Pastures In The Central Highlands Of Turkey: Importance Of Diagnostic Surveys In Project Planning And Execution, H K. Firincioglu, S Christiansen, S Unal, D Ozturk, H Basaran Jun 2024

Participative Management And Rehabilitation Of The Village Common Pastures In The Central Highlands Of Turkey: Importance Of Diagnostic Surveys In Project Planning And Execution, H K. Firincioglu, S Christiansen, S Unal, D Ozturk, H Basaran

IGC Proceedings (1997-2023)

Most of the pastures in the central highlands of Turkey have been replaced by cereal production over the last 50 years. Also, the mismanagement of the existing pastures, i.e., early grazing and over stocking of animals, has resulted in severe degradation of pasture species. A study, involving a multidisciplinary approach, was initiated and included botanical and socio-economic surveys, improvement of village-based feed resources, and realistic livestock feeding schemes to put limited feed resources to best use. Results of socioeconomic survey studies in selected villages are presented as prerequisite information for initiation of a forage, livestock and range rehabilitation project.


Use Of Grazing Animals In Re-Seeding Degraded Marginal Lands In Northern Syria, F Ghassali, A E. Osman, P S. Cocks Jun 2024

Use Of Grazing Animals In Re-Seeding Degraded Marginal Lands In Northern Syria, F Ghassali, A E. Osman, P S. Cocks

IGC Proceedings (1997-2023)

Seed mixture of sixteen native legumes were fed to sheep as a single meal and their passage through the animals was monitored in the faeces. The same mixture was used in a field experiment to improve degraded pasture. Over two hundred sheep were allowed to graze the improved pasture and rest on a nearby un-improved (target) pasture during four days. Results showed that legumes with smaller seeds were able to pass through the animals undamaged compared with large seeded species. The field study provided confirmation of the animal feeding study and provided evidence that grazing animals can help in rehabilitation …