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Articles 571 - 600 of 9401
Full-Text Articles in Entire DC Network
Effect Of Nitrogen Fertilization In Combination With Potassium And Phosphorus And Cutting Frequency On The Yield Of Brachiaria Ruzizensis In Adamawa, Cameroon, E T. Pamo, D Pieper
Effect Of Nitrogen Fertilization In Combination With Potassium And Phosphorus And Cutting Frequency On The Yield Of Brachiaria Ruzizensis In Adamawa, Cameroon, E T. Pamo, D Pieper
IGC Proceedings (1977-2023)
Fertilizers have been shown to increase forage yields under some conditions (Owensby and Smith, 1975), but has very little effect under other conditions (Stoddart et al., 1975). Thus in recent years a great deal of attention has been focussed on the ways and possibilities of increasing forage production by fertilization. Various experiments have been conducted on the response of Brarhiaria ruziziensis Germain and Evrad, one of the best perennial forage grasses of the region, to fertilization at Wakwa Animal Research Station. Yonkeu et al., (1986) indicated that application of phosphorus did not lead to improved yield of the forage on …
The Influence Of Cow Manure On Forage Yields Of King Grass In A Ferrasol In Cuba, G Crespo, M Oduardo
The Influence Of Cow Manure On Forage Yields Of King Grass In A Ferrasol In Cuba, G Crespo, M Oduardo
IGC Proceedings (1977-2023)
Experiments conducted in sandy and brown soils in Cuba demonstrated the beneficial effect of manure for accelerating the establishment of forage plants, and the possibility of diminishing up to 50 % the dosage of N fertilizer requirements to obtain maximum forage yield (Crespo and Diez 1978; Crespo and Arteaga 1984). The aims of the present experiments were: a) to determine the best time of application of cow manure and b) to learn the influence of manure and nitrogenous fertilizer on forage yield of king grass in a ferrasol soil.
Effects Of Phosphogypsum, Phsophorus And Lime On Andropogon Gayanus Kunth, V T. Paulino, E Malavolta
Effects Of Phosphogypsum, Phsophorus And Lime On Andropogon Gayanus Kunth, V T. Paulino, E Malavolta
IGC Proceedings (1977-2023)
There are several factors which determine the low animal productivity in the tropics. Among these factors, inadequate nutrition is the most limiting one followed by the low natural fertility and high acidity of the soils in these regions. Previous findings have shown important soil nutrient deficiencies in some Brazilian cerrado soils. Malavolta (1952) demonstrated sulfur (S) deficiencies, while Werner et al. (1967) found plant response to S. Responses to phosphorus addition are very common in this kind of soil and in tropical America there are rates of phosphorus being applied, which sometimes are uneconomical for the formation and maintenance of …
Red Clover Needs For Mobybdenum And Boron Soil Threshold Values Of Deficiency And Toxicity, H Gembrazewski
Red Clover Needs For Mobybdenum And Boron Soil Threshold Values Of Deficiency And Toxicity, H Gembrazewski
IGC Proceedings (1977-2023)
Red clover is a precious and promising fodder crop in Poland. Even on acid soils its yields are satisfying, if sufficient level of exchangeable Ca is present. Symbiotically fixed N covers N needs, but fixing effectiveness and rate of further changing of nitrogen compounds depends on optimal molybdenum supply. It is a component of such enzymes as nitrogenase and nitrate reductase, which make it necessary for Rhizobium as well as clover. However, Mo surplus is toxic for animals (the relation of Mo:Cu is of importance). As other leguminous plants, red clover needs much boron. Yield of 15 t of dry …
A Time For Change- Issues Arising From The Xvii International Grassland Congress Developed World Viewpoint, Barney Foran
A Time For Change- Issues Arising From The Xvii International Grassland Congress Developed World Viewpoint, Barney Foran
IGC Proceedings (1977-2023)
A number of major issues raised at the conference, if they are accepted by farmers and grassland scientists, will mean a major realignment of both the philosophy and practice of grassland science. The first of these is future world trade flows and a bleak prognosis for traded livestock products. Jf the developed world accepts that developing nations have to trade in order to develop, and trade in commodities where they have a cost advantage, this suggests that bulk production of livestock commodities will decline ln total. Thus grassland exports will have to concentrate on high value niche markets. This poses …
Animal Production From Tropical Semi-Arid Savannah Woodland In Subcoastal Queensland, Australia, H G. Bishop, H J. Chamberlain, R M. Dodt, T B. Hilder, G A. Lambert, E R. Anderson
Animal Production From Tropical Semi-Arid Savannah Woodland In Subcoastal Queensland, Australia, H G. Bishop, H J. Chamberlain, R M. Dodt, T B. Hilder, G A. Lambert, E R. Anderson
IGC Proceedings (1977-2023)
Annual live-weight gain of steers grazing on virgin tropical semiarid poplar box (Eucalyptus populnea) savannah woodland in subcoastal central Queensland fluctuated between 59 kg/head and 200 kg/head over a 7-year period. Average live-weight gain for the 7 years was 136 kg/head/year, which is above expected levels for this vegetation type. Reasons suggested for this animal performance are the use of a stocking rate more lenient than the district average and above-average winter rainfall received during the 7 years of this demonstration project. Removing trees doubled the pasture dry matter yield, which subsequently allowed a doubling of stocking rate …
Evaluation Of Animal Productivity And Pasture Yield After Treatment Of Brigalow (Acacia Harpopylla) Regrowth With Tebuthiuron, G W. Fossett, P C. Venamore
Evaluation Of Animal Productivity And Pasture Yield After Treatment Of Brigalow (Acacia Harpopylla) Regrowth With Tebuthiuron, G W. Fossett, P C. Venamore
IGC Proceedings (1977-2023)
Brigalow (Acacia harpophylla) regrowth was aerially treated with 2.0 kg/ha tebuthiuron (Graslan TM) at Blackwater, Australia in November 1989. Control of brigalow regrowth increased in grass production 2- fold, which resulted in dramatic animal live-weight gains. The liveweight advantage of steers grazing the tebuthiuron treated area was 31 kg/head compared with similar steers grazing the control paddock at similar stocking rates. After 20 months this advantage enabled 44% of stock to be marketed at premlum prices. A subset of steers implanted with a long-term hormonal growth promotant (HGP) (Compudose400™) and grazing the tebuthiuron-treated paddock recorded a 75 kg …
A Legume Ley System In Australia's Semi-Arid Tropics, R L. Mccown, K Thiagalingam, T Price, P S. Carberry, R K. Jones, N P. Dagliesh, D.C I. Peake
A Legume Ley System In Australia's Semi-Arid Tropics, R L. Mccown, K Thiagalingam, T Price, P S. Carberry, R K. Jones, N P. Dagliesh, D.C I. Peake
IGC Proceedings (1977-2023)
A large part of the Australian continent is semi-arid and tropical. While extensive beef cattle grazing is the most significant agricultural industry in this region, there Is some potential for dryland cropping. There are strong economic and- ecological reasons for exploring the possibility of a no-till tropical ley system. Work at Katherine, Northern Territory, found that a ley system based on Stylosanthes hamata cv. Verano showed considerable promise based on both contributions to dry-season animal performance and nitrogen contribution to succeeding coarse grain crops. Subsequent research and development in the wetter Douglas-Daly district of the Northern Territory has demonstrated even …
Potential Of Crotalaria Ochroleuca (Marejea) In Traditional Crop And Livestock Production Systems In Tanzania, S V. Sarwatt
Potential Of Crotalaria Ochroleuca (Marejea) In Traditional Crop And Livestock Production Systems In Tanzania, S V. Sarwatt
IGC Proceedings (1977-2023)
In experiments to study the role of Crolalaria ochrroleuca (marejea) in traditional farming systems, the plant was used in the following way: (l) broadcast alone at a rate of 10 kg/ha of seed to determine dry matter (DM) yield, nutritive value and kg N/ha it can fix at different stages of growth, i.e., 2, 4, 6, 8, IO, 12, 14 and 16 weeks. (2) sown under after 3 weeks on alternate ridges with maize and maize alone as control. (3) the leaves at 10 weeks were harvested and supplemented to young sheep grazing 8 h/day. 12 male sheep …
Pasture Legumes In Cuba: Past, Present, And Future, F Funes, Marta Monzote
Pasture Legumes In Cuba: Past, Present, And Future, F Funes, Marta Monzote
IGC Proceedings (1977-2023)
Before 1960 the utilisation of pasture legumes was scarce. During the decade 1960-1970 more than 10 thousand hectares of Medicago sativa. Neonolonia wightii, Cajanus cajan and Pueraria phaseoloides were sown, but interest decreased later. In the mid 1970s, research was reorganised and since 1980 results were attained showing outstanding performance of the species: N. wightii (10 t DM/ho/ year), ·Teramnus labialis (11.5 t), Lencaena leucocephala (12 I), Medicago sativa (12,5 t), Pueraria phaseoloides (14 t), Stylosanthes guianensis (IS I) and others. Results on ecological adaption, sowing, establishment, rhizobiology, seed production, pest and diseases and other agronomic aspects are …
Establishment And Animal Production Based On Tropical Grass-Legume Pastures, Marta Monzote, F Funes
Establishment And Animal Production Based On Tropical Grass-Legume Pastures, Marta Monzote, F Funes
IGC Proceedings (1977-2023)
Different experiments were carried out to study the establishment of grass-legume swards and animal performam;e from the pastures. Grasses were: Digitarla decumbens, Dichantum sp,, Botriocliloa sp,, Panicum maximum, Cllloris gayana, Cynodon dactylon, Cenchrus setigerus and Cenchrus ciliaris; legumes were: Neonotonia wightti, Macroptllium atropurpuretm, Desmodium intortum, Stylosanthes guianensis and Centrosema pubescens. Good establishment were obtained with minimum tillage of harrowing on the grass cover after heavy grazing or harvesting close to the ground, Broadcast sowing at 2-3 kg/ha was carried out. Growth was slow at I plant/m1 but rapid at S-10 plant/m1, In prepared …
The Aeschynomene Genus As A Source Of Pasture Legumes For Tropical And Subtropical Australia, H G. Bishop, T B. Hilder
The Aeschynomene Genus As A Source Of Pasture Legumes For Tropical And Subtropical Australia, H G. Bishop, T B. Hilder
IGC Proceedings (1977-2023)
Three Aeschynomene cultivars are currently used as pasture legumes for tropical and subtropical Australia; A. falcata·cv, Bargoo released in 1973, A. americana cv, Glenn released in 1983 and A. americana cv. Lee released in 1991. Five other Aeschynomene accessions from 2 species are on "pre-release" registration with the Queensland Herbage Plant Liaison Committee pending additional data on adaptation and animal production: A. brasiliana CPI 92519 and CPI 93592 and A. villosa CPI 37235, 91209 and 93621. A collection of over 300 Aesc/1y1wme11e accessions was grown at Mackay, Queensland, in 1982-83 to describe the diversity within this genus. This diversity supports …
Alfred Russel Wallace Notes 35. Natural Selection By Evolution., Charles H. Smith
Alfred Russel Wallace Notes 35. Natural Selection By Evolution., Charles H. Smith
Faculty/Staff Personal Papers
Alfred Russel Wallace (1823?1913) is remembered, with Charles Darwin, as the co-originator of the concept of evolution by natural selection. But Wallace’s framing of the idea increasingly became one in which natural selection itself was regarded as a law of nature, not a theory per se.
Luminescence Dating And Its Application To Anthropogenic Sedimentary Sequences:Tepecik-Çiftlik Prehistoric Settlement, Eren Şahi̇ner, Mehmet Korhan Erturaç
Luminescence Dating And Its Application To Anthropogenic Sedimentary Sequences:Tepecik-Çiftlik Prehistoric Settlement, Eren Şahi̇ner, Mehmet Korhan Erturaç
Turkish Journal of Earth Sciences
Luminescence dating is a fundamental technique in the field of earth sciences research, offering a reliable method fordetermining the age of sediments and artifacts. Applications of luminescence dating in archaeology include the dating of ancienthabitation sites, burial mounds, and artifacts such as pottery. This provides a chronological framework for understanding humanactivities and environmental changes over millennia. The capacity of luminescence dating to ascertain the age of events spanning a fewdecades to several hundred thousand years renders it an indispensable instrument for the construction of timelines and interpretationof the past. This study presents a concise overview of the various stages of …
Environmental And Cultural Impacts Of The 8.2 Ka Event In Yenikapı (İstanbul/Türkiye), Ayşi̇n Konak, M. Namik Yalçin
Environmental And Cultural Impacts Of The 8.2 Ka Event In Yenikapı (İstanbul/Türkiye), Ayşi̇n Konak, M. Namik Yalçin
Turkish Journal of Earth Sciences
The Neolithic lifestyle, which began in the 12th millennium BP with the emergence of villages in the core region extendingfrom Iran to central and southeastern Anatolia and Syria, began to spread to neighboring geographies, such as the Marmara region,in the 9th millennium BP. During the 8.2 ka event that occurred between 8300 and 7900 BP, cold and dry conditions prevailed in thenorthern hemisphere. During the winter months, the humidity decreased and cooling of about 6 ± 2 °C was observed. In order totest whether the 8.2 ka event was also effective in the İstanbul region, a set of inorganic geochemical …
Minero-Petrographic, Geochemical, And Multiisotopic Characterization Of The Ancientbanded Travertine Quarries Of The Lycus Valley (Denizli, Türkiye), Tamer Koralay, Nergi̇s İmre
Minero-Petrographic, Geochemical, And Multiisotopic Characterization Of The Ancientbanded Travertine Quarries Of The Lycus Valley (Denizli, Türkiye), Tamer Koralay, Nergi̇s İmre
Turkish Journal of Earth Sciences
The Lycus Valley in Western Anatolia has been the site of numerous civilizations since ancient times due to historical, geopolitical, and climatological characteristics. Banded travertine is a ubiquitous architectural stone observed in ancient settlements in the Lycus Valley. Banded travertines referred to as “Alabastro Fiorito,” “Alabastro Listato,” and “Alabastro Rossa” in archaeological bibliographies have been extracted from the ancient quarries of Çukurbağ, Hierapolis, Develi-Akköy, Gölemezli, and Tripolis in the Lycus Valley and are characterized by white, yellow, brown, red, and red-burgundy colored bands with thicknesses ranging from a few millimeters to centimeters. The banded travertines have similar mineral compositions and …
Shock Effects Including Maskelynite Formation In Three Shergottite Meteorites From Mars, George Ayeh Anim
Shock Effects Including Maskelynite Formation In Three Shergottite Meteorites From Mars, George Ayeh Anim
Dissertations and Theses
Martian meteorites result from large impact events on the surface of Mars that cause intense shock metamorphism. This study examines the shock metamorphic features of three shergottite meteorites, Dho 019, NWA 12241, and NWA 15628, to better understand shock impact events. The research uses petrographic analysis, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and electron backscatter diffraction (EBSD) to analyze the meteorites. A key focus of this research is the formation of maskelynite, a glass with plagioclase composition, whose formation mechanism has been the substance of debate among researchers. This study proposes that maskelynite forms through a transient intermediary …
The Integrated Monitoring Of Karst Systems (Miks) Model, Applied In Karst Studies In Bulgaria, Petar Stefanov, Dilyana Stefanova, Peter Nojarov
The Integrated Monitoring Of Karst Systems (Miks) Model, Applied In Karst Studies In Bulgaria, Petar Stefanov, Dilyana Stefanova, Peter Nojarov
International Journal of Speleology
Karst is a widespread natural phenomenon that is highly sensitive and very vulnerable to both natural and various anthropogenic impacts. This is due to the complex structure of karst territories, which comprise both surface forms and complex systems of underground cavities. Therefore, the study of karst requires a geosystem approach and integrated monitoring, which gives a real idea of the state of karst geosystems and the impacts of global changes on karstogenesis. The article presents a model of this approach, which is applied in karst studies in Bulgaria. The methodological basis is the original ProKARSTerra paradigm, based on the geosystem …
Tracing The Sources Of Nitrogen In Submarine Groundwater Discharge And Primary Producers In The Great South Bay Estuary, Nia H. Rene
Dissertations, Theses, and Capstone Projects
The primary aim of this research was to elucidate the impact of submarine groundwater discharge (SGD) and septic effluent on coastal primary producers in the Great South Bay (GSB). The study focused on three main objectives: assessing the impact of precipitation patterns on SGD, tracing nitrogen sources into the GSB, and determining the impact of these nitrogen sources on coastal primary producers. The research revealed that current precipitation patterns significantly influence SGD across different seasons, highlighting the seasonal variability in groundwater discharge and its implications for nutrient loading in coastal waters. A suite of tracers was employed to identify and …
Calliandra Calothyrsus - A Potential New Shrub Legume For Tropical Animal Production?, B Palmer, R A. Bray, T M. Ibrahim
Calliandra Calothyrsus - A Potential New Shrub Legume For Tropical Animal Production?, B Palmer, R A. Bray, T M. Ibrahim
IGC Proceedings (1977-2023)
Calliandra calothyrsus outyielded leucaena in cutting experiments at 2 sites in northern Australia and I in Indonesia. Drying significantly depressed the voluntary intake and digestibility of leaf, possibly due to the presence of tannin. Calliandra has the potential as a supplement for the low quality grass common to the tropics both ln grazing and cut-and-carry systems.
Advances In Research And Development With Sylosanthes And Other Tropical Pasture Legumes, D F. Cameron, C P. Miller, L A. Edye, J W. Miles
Advances In Research And Development With Sylosanthes And Other Tropical Pasture Legumes, D F. Cameron, C P. Miller, L A. Edye, J W. Miles
IGC Proceedings (1977-2023)
The last 20 years have seen major advances in research and development wilh tropical legumes. Research advances have been closely associated with substantial increases in the number and diversity of genetic resource collections, Release of a wide range of new cultivars has been based on selection for plant adaptation, persistence and productivity, screening for resistance to pest's and diseases, and the development of efficient seed production. Determination of fertiliser requirements and grazing management practices has resulted in sustainable animal production from legume-based pasture systems. Extensive pasture development has now occurred in both high and low input systems. Options vary from …
Integration Of Wildlife And Cattle On Communal Lands In Kangwane, South Africa, M Stalmans, A Van Wyk, M T. Mentis
Integration Of Wildlife And Cattle On Communal Lands In Kangwane, South Africa, M Stalmans, A Van Wyk, M T. Mentis
IGC Proceedings (1977-2023)
The feasibility of integrating wildlife with the current livestock husbandry on communal lands in KaNgwane was investigated. Present stocking rates were 3 times the recommended figure for production farming. This fitted predictions based on the Jones-Sandland model for populations where the major consideration is maximum number of animals rather than high productivity. The integration of game was seen as a means to increase economic output, while spreading benefits from the use of natural resources to the community at large and establishing a form of ecologically sustainable land use. The active involvement of the community in the planning process and their …
Game Production On Private Land In South Africa, J C. Pauw, M J.S Peel
Game Production On Private Land In South Africa, J C. Pauw, M J.S Peel
IGC Proceedings (1977-2023)
The game industry on private land in South Africa has grown considerably in the last 30 years, resulting in a greatly increased biodiversity on private rangeland. However, animals are not domesticated and management is difficult. Management becomes even more complex because commercial game production normally involves a number of species, including domestic stock, in the same production system. Mixed livestock-game ranching holds certain advantages for management and is generally perceived to be more profitable than either alone. Because of human preferences, a lack of clearly defined management objectives and lack of practical management recommendations, veld is generally heavily utilised and …
Overcoming Limitations On The Productivity Of Browsing Ungulates In Africa, Norman Owen-Smith
Overcoming Limitations On The Productivity Of Browsing Ungulates In Africa, Norman Owen-Smith
IGC Proceedings (1977-2023)
In African savannas primary production by woody plants may match that by the grass layer. However, maximum population levels attained by browsing ruminants are only one tenth of those reached by similar sized grazers, The productivity of browsers is limited because (I) much foliage is out of reach, and dispersed by wind when shed; (2) most palatable trees are deciduous, leading to a food bottleneck during the late dry season; (3) leaves of many woody species are rendered unpalatable, indigestible or toxic by plant secondary metabolites. Management actions to overcome these limitations include (I) lopping trees to restrict their height; …
Economic And Ecological Features Of Livestock And Wildlife Utilization In Africa, J I. Barnes
Economic And Ecological Features Of Livestock And Wildlife Utilization In Africa, J I. Barnes
IGC Proceedings (1977-2023)
This paper looks at livestock and wildlife utilisation in Africa within the framework of total economic value (TEV), which includes both utilisation and biodiversity values. In Africa, traditional use of wildlife involves open access systems on public land, Here, free ranging, public wildlife resources are used to produce subsistence or marketed meat and skins at smaII scale. Traditional livestock systems involve open access use of rangelands. Here, livestock are kept at small ·scale to produce draft power, milk, meat and as a store of .value. Commercial use of wildlife involves restricted access systems on both public and private lands. Here, …
Conservation Of Biodiveristy In Managed Rangelands, With Special Emphasis On The Ecological Effects Of Large Grazing Ungulates, Domestic And Wild, Patrick Duncan, Peter J. Jarman
Conservation Of Biodiveristy In Managed Rangelands, With Special Emphasis On The Ecological Effects Of Large Grazing Ungulates, Domestic And Wild, Patrick Duncan, Peter J. Jarman
IGC Proceedings (1977-2023)
Biodiversily with its different components (genes, species and ecosystems) is defined in relation to rangelands, whose Importance in its conservation is described. At the fine scale grasslands are much more diverse than tropical rain forest, and are comparably diverse at a regional scale, at least in Africa. Rangelands are crucially important world wide for 1he conservation of plants, and also for birds and large mammalian herbivores. Large ungulates (and other large herbivores) ace "keystone" species in these·ecosystems, playing a crucial role in the maintenance of diverse communities of plants, birds and invertebrates associated with such grasslands. Modification of the natural …
Productivity Of Silvipastoral Areas And Management Needs In Arid Regions Of India, N C. Jain
Productivity Of Silvipastoral Areas And Management Needs In Arid Regions Of India, N C. Jain
IGC Proceedings (1977-2023)
In an extremely arid state of India (Rajasthan) having high livestock concentration and vast degraded lands, the State Forest Department has developed community and forest lands into silvipastoral areas by sowing grass (mainly Cenchus ciliaris and C. setigerus) in association with trees. Surveys have revealed high variability in pasture establishment and productivity in different regions. Cenchrus established well in most regions, except the extreme south, if proper sowing methods with closer spacing were followed and soil conservation measures undertaken. Closure from animals helped in favourable grass succession. Establishment of Dichanthium annulatum and Stylosanthes hamata was relatively poor, Analysis of …
Sheep And Forage Productivity In Rubber Plantations, I Tajuddin, D T. Chong, K F. Ng, W W. Stur, H M. Shelton
Sheep And Forage Productivity In Rubber Plantations, I Tajuddin, D T. Chong, K F. Ng, W W. Stur, H M. Shelton
IGC Proceedings (1977-2023)
The concept of integration of sheep with rubber plantations for weed control and meal production is rapidly gaining recognition in Malaysia. A series of experiments were set up with ACIAR support to determine the level of forage and animal production achievable in rubber plantations and to introduce and evaluate new forage germplasm for sheep grazing under rubber. These experiments showed that (i) the productivity of the currently used cover crops and naturally occurring further as rubber trees matured, (ii) the proportion of the unpalatable cover crop Caloponuim caeruleum increased rapidly with sheep grazing in immature rubber, (iii) reasonable sheep live-weight …
Pastures As The Secondary Components In Tree-Pasture Systems, Chin Peng Chen
Pastures As The Secondary Components In Tree-Pasture Systems, Chin Peng Chen
IGC Proceedings (1977-2023)
The multi-stata canopy structure of rain forest allows only I% sunlight penetration, too little for the survival of forage beneath it. However, man-made forest plantation (rubber, oil palm and coconut) allows more light for forage species. Initially, 60-70 forage species were recorded under these modified forest canopies but only one third of them survived heavy shading. Forage dry matter yields declined from 2.8-4.8 I/ha DM at immature phase of plantations, to 0.1-1.0 I/Im at mautre phase. Nutrients. available to grazing animals from forages under plantations were guile high (18.4 kg Nit DM and 5609 MJ MEit DM) from native forages, …
Grazing Potential Of Desiccation-Tolerant Tropical And Subtropical Grasses, Y A. Sutaryono, D F. Gaff
Grazing Potential Of Desiccation-Tolerant Tropical And Subtropical Grasses, Y A. Sutaryono, D F. Gaff
IGC Proceedings (1977-2023)
Some desiccation-tolerant grasses possess the potential for use as a grazing source for animals. Some species compared favourably in nutrient content and digestibility with other tropical animal fodder grasses. The Sporobolus species, S. aff, fimbriatus, S. lampranthus, S. pellucidus, together with Eragrostis invalida and Eragrostiella nardoides showed the most promising combination of desirable characteristics. Resurrection grasses contained potentially toxic substances, but, it appears, in amounts harmless to animals, Animal feed trials are needed to test their real feed value, palatability and non-toxicity to animals.