Palatability Of The Main Fodder And Pasture Species Present In S.E. Spain: I. Woody Species (Trees And Shrubs), S Rios, E Correal, A Robledo
IGC Proceedings (1977-2023)
In S.E. Spain, livestock is mostly fed with the subproducts from cultivation of cereals. As a result of the limited feed resources available and because of the growth restriction imposed by climate, several feeding gaps occur along the year : at the end of summer, during winter, and at the end of spring. In a search of new fodder resources to cover the mentioned feeding gaps, a first step was to compare the palatability of the main fodder species present in cultivated and range areas.
Conversion Of Tropical Forest To Pasture In Latin America,
2025
USDA Forest Service
Conversion Of Tropical Forest To Pasture In Latin America, H A. Pearson, Susanna B. Hecht, T E. Downing
IGC Proceedings (1977-2023)
A major workshop concerning the impacts of tropical forest conversion to pastures in Latin America was conducted in Oaxaca, Mexico, October 4-7, 1988, by the U.S. Man and the Biosphere Program (MAB). The workshop described the current situation and history, reviewed the economic, environmental, and social impacts and dynamics of deforestation, discussed production alternatives and development perspectives, and identified research, technological, and policy options and priorities. The purpose of this paper is to summarize results and recommendations of the Oaxaca workshop and emphasize it significance at the XVI International Grassland Congress.
Environmental Related Variation In A Natural Grassland Of Rio Grande Do Sul, Brazil,
2025
Universidade Federal do Rio Grande do Sul - Brasil
Environmental Related Variation In A Natural Grassland Of Rio Grande Do Sul, Brazil, V De P. Pillar, A.V A. Jacques, I I. Boldrini
IGC Proceedings (1977-2023)
Vegetation ecology studies help research efforts to improve natural grassland productivity by laying foundations for improvement techniques directed to benefit desired plant communities. Experiments reveal knowledge about the environmental conditions responsible for community structure and productivity, while surveys are a fast and cheap means for exploratory studies. In either case, data interpretation are helped by multivariate methods described by different authors, e.g., Orloci and Kenkel (1985). Our work is aimed to identify the environmental factors most responsible for vegetation variation in natural grasslands, locally known as « campos », and to formulate hypotheses about the effects of fertilization and grazing …
Introduction, Selection And Evaluation Of Annual Sown Forage Legumes Under Continental Mediterranean Climate Conditions In Pakistan,
2025
Arid Zone Research Institute
Introduction, Selection And Evaluation Of Annual Sown Forage Legumes Under Continental Mediterranean Climate Conditions In Pakistan, Asghar Ali, J.D H. Keatinge, B Roidar Khan
IGC Proceedings (1977-2023)
The upland areas (> 1000 m) of Baluchistan Province in Pakistan (Latitude 28-32° N) experience a continental semiarid Mediterranean climate with some irregular additions of summer monsoonal rainfall. The current farming systems rely on the production of small ruminants from degraded Artemesia and Chrysapogon sp. rangeland and subsistence cropping of wheat/fallow rotations (Icarda, 1988). Sheep and goat numbers in Baluchistan have increased since 1955 from approximately two to thirteen million head in 1986 (Icarda, 1988). This has resulted in severely overgrazed rangelands and periodic acute feed deficits. In response the Arid Zone Research Institute has initiated a program for the …
Intensive Maize Production - The Basis For Intensification Of Cattle Production In Venezuela,
2025
University of Zagreb
Intensive Maize Production - The Basis For Intensification Of Cattle Production In Venezuela, J Cizec
IGC Proceedings (1977-2023)
The two main branches of cattle production in Venezuela are beef production and dairy production. Both branches are still rather extensive, mainly due to very extensive forage production. This is particularly evident in beef cattle production where almost 50 % of the weight gain achieved in the rainy season is lost during the dry period. Thus, it takes three to four years for the cattle to achieve slaughtering weight (Moore, 1970). On the other hand, relatively satisfactory milk production of dairy cows is enabled only by consumption of large quantities of expensive concentrates. Within an agricultural and industrial development project …
Study On The Eco-Biological Characteristics And Utilization Of Artemisia Growing On Arid Ranges,
2025
Xinjiang Agriculture University
Study On The Eco-Biological Characteristics And Utilization Of Artemisia Growing On Arid Ranges, Shi Dingsui, Smayi Balaty, Xu Peng
IGC Proceedings (1977-2023)
Artemisia species are found in large areas of the Zhunger Basin, Tacheng Valley, Yili Valley, the northern slope of the Qulun mountains of Xingjiang ; the total area is larger than 6.67 million ha. The drought-enduring Artemisia has a high resistance to bad conditions and high protein and fat contents. Artemisia transiliensis Poljak at branched stage has 21.4 per cent crude protein, and the content of fat at the mature stage of seeds is 5.7 per cent. They are the best forages for lambs in early spring, autumn and winter, especially for fattening in autumn and milking in early …
Forage Production From Barley, Oats And Triticale Under Semi-Arid Conditions,
2025
Agricultural Research Institute
Forage Production From Barley, Oats And Triticale Under Semi-Arid Conditions, D Droushiotis
IGC Proceedings (1977-2023)
Under Mediterranean climatic conditions and systems of Agriculture, cereals are important contributors to animal feeding. They are, in general more drought and cold resistant than forage legumes. Barley in particular is a very important forage crop because of its reliability and versatility. As interest in livestock increases in this area, fodder production becomes more and more important. The limited rainfall makes it difficult to get away from cereals and they will, for a long time to come, continue to be a major source of grazing, freshly cut forage, hay, silage and grain-straw.
Dorycnium And Other Mediterranean Species - Their Use For Forage And Soil Conservation In Semi-Arid Environments Of New Zealand,
2025
Soil Conservation Centre
Dorycnium And Other Mediterranean Species - Their Use For Forage And Soil Conservation In Semi-Arid Environments Of New Zealand, B J. Wills, J.S C. Begg, J S.S Sheppard
IGC Proceedings (1977-2023)
Dorycnium is one of several Mediterranean plant species that have been under evaluation for soil conservation purposes in New Zealand since the 1970's. In the dry South Island hill country, particular problems exist in relation to drought-prone, wind and frost affected, low to moderate fertility soils. In many cases these areas can provide for stock wintering and lambing, but in a semi-arid climate they produce little stock forage and provide an ideal habitat for rabbits. The two Dorycnium species described in this paper are nitrogen fixing, leguminous plants which have shown considerable promise for revegetation in drought-prone and semi-arid areas …
Effects Of Temperature On Photosynthesis Of Miscathus Species,
2025
National Chung-Hsing University
Effects Of Temperature On Photosynthesis Of Miscathus Species, Jen-Hsien Weng
IGC Proceedings (1977-2023)
Miscanthus spp. is a perennial C4 grass. It distributes in the Pacific Islands, Philippines, China and Japan. In Taiwan (N 21°55' - 25°18'), Miscanthus is the most widely distributed and important native grass. It grows vigorously from flat areas up to 3000 m high in mountain areas. Photosynthesis is one of the major determinants of biomass production in higher plants. In many cases, the photosynthesis of C4 plants was reduced remarkably at low temperature as compared to that of C3 plants (Berry and Bjorkman, 1980). In general, the species of C4 plants decreased with increasing latitude and elevation (Takeda and …
Yield Of Grass And Legumes In Relation To The Rainfall Pattern In The Dryland Farming Area Of Bali,
2025
Udayana University
Yield Of Grass And Legumes In Relation To The Rainfall Pattern In The Dryland Farming Area Of Bali, W Sukanten, I M. Nitis, S Putra, M Suarna, K Lana
IGC Proceedings (1977-2023)
According to Schmidt and Ferguson classification, the climatic of Bali varies from climatic zone B to climatic zone F (Manik et al., 1977). The dryland farming area with climatic zone F has average annual rainfall of 1000 mm with 116 rainy days distributed during the 8 months dry and 4 months wet seasons (Nitis et al., 1987). Some grass and legume species could grow in dry land farming area with average annual rainfal as low as 300 - 700 mm (O'Reilly et al., 1987). The objective of this paper was to study the response of the grass and legume yields …
Preliminary Results Of Field Trial Evaluations Of Some Tropical Pasture Species Performance In The Humid And Sub-Humid Tropical Zones Of Yunnan Province, Southern China,
2025
Bureau of Animal Husbandry, Yunnan
Preliminary Results Of Field Trial Evaluations Of Some Tropical Pasture Species Performance In The Humid And Sub-Humid Tropical Zones Of Yunnan Province, Southern China, Xu Xuie Jun, Wang Tu, Guo Zhen Yun
IGC Proceedings (1977-2023)
The Yunnan province has a very complex topography and climate. There are tropical and sub-tropical zones at altitudes ranging from 100-1 000 m. The project started its tropical pasture species evaluation trial in 1983 at Daliuhu - a dry tropical zone, and some results were reported (Mathison et al., 1985). In 1987, a similar trial was conducted at Mangzhongtien - a humid tropical zone. The objective of the work is to provide recommendations on species useful for pasture improvement for increased livestock production. This paper compares the first year's results from the two sites.
Effet De L'Arbuste Fourrager Atriplex Repanda Phil. Sur La Fertilite Du Sol Et Sur La Strate Herbacee Associee,
2025
Universite du Chili,
Effet De L'Arbuste Fourrager Atriplex Repanda Phil. Sur La Fertilite Du Sol Et Sur La Strate Herbacee Associee, S Lailhacar, A Carasco, M A. Sadzaw, G Castellaro
IGC Proceedings (1977-2023)
Au cours des dernieres annees, les plantations d'arbustes fourragers ont prolifere pour corriger Jes deficiences nutritives saisonnieres en proteine et carotene des therophytes qui dominent la strate herbacee des prairies de climat mediterraneen aride du Chili. En 1988 la rve Region possedait plus de 30.000 ha de plantations d'Atriplex repanda et A. nummularia. Etant donne les qualites nutritives de ces arbustes, ils doivent etre consideres comme complement du fourrage herbace et non pas comme son substitut, et, autant que possible, les deux ressources devraient etre presentes pour fournir un regime satisfaisant a la fin de la gestation d'ovins et de …
Etude Microhistologuque Du Regime Alimentaire Des Ruminants En Zone Sahelo-Soudanienne: Difficultes Methodologiques,
2025
IEMVT/CIRAD
Etude Microhistologuque Du Regime Alimentaire Des Ruminants En Zone Sahelo-Soudanienne: Difficultes Methodologiques, H Planton
IGC Proceedings (1977-2023)
Un programme de recherches sur !'utilisation des parcours naturels a ete mis en place au Ferlo (Senegal) pour etudier la composition des regimes alimentaires et leur relation avec celle des paturages. Les observations de terrain et les prelevements ont ete recueillis en 1982 et 1983, annees dont la pluviosite resta comprise entre 400 et 500 mm repartis sur 3 a 4 mois (Guerin, 1987). L'analyse microhistologique de 105 echantillons recoltes en 1982-1983 a ete realisee en 1986 dans le but de tester en milieu tropical sec cette methode habituellement utilisee en milieu tempere.
Rest Period Requirements And A Role For Stylosanthes In Cereal Cropping Systems In The Nigerian Subhumid Zone,
2025
Ahmadu Bello University
Rest Period Requirements And A Role For Stylosanthes In Cereal Cropping Systems In The Nigerian Subhumid Zone, M A. Mohamed Saleem, K B. Adeoye, R R. Von Kaufmann
IGC Proceedings (1977-2023)
Ferric luvisols that dominate the subhumid zone of Nigeria and west Africa (60 % of the land area) are the main group of soils suitable for grain crops. However, when cropped repeatedly these soils are rapidly degraded leading to low grain yields. Most tropical soils suited for annual crops require a crop free period (Rest Period) of varying duration to maintain soil in a productive state (Young and Wright, 1984). Recuperation of degraded land is slow under the traditional practice of bush fallowing. This cannot sustain the yields and cropping frequency necessary to support the increasing population. Alternatives to natural …
Salt Tolerant Legumes From The Guadalquivir Delta (S.W. Spain),
2025
CSIC
Salt Tolerant Legumes From The Guadalquivir Delta (S.W. Spain), T Maranon, J M. Romero, J M. Murillo
IGC Proceedings (1977-2023)
Saline environments occupy about 15 millions ha in the Mediterranean basin (Le Houerou, 1986). Many of those areas have been traditionally devoted to grazing. Native salt tolerant ecotypes of forage legumes and grasses are increasingly menaced. Overgrazing may lead to local extinction of the most palatable races ; on the other hand, their habitats are decreasing in salt marshes by drainage and farmland reclamation. Therefore, a coordinated program of survey, evaluation and conservation of salt tolerant plant genetic resources would be desirable in the Mediterranean basin. A project to study the ecology, physiology and nutritive value of salt tolerant annual …
Introduction Of Fourwing Saltbush (Atriplex Canescens) Into Degraded Rangelands In Upload Baluchistan,
2025
Colorado State University
Introduction Of Fourwing Saltbush (Atriplex Canescens) Into Degraded Rangelands In Upload Baluchistan, S R. Aro, M I. Sultani, M Asghar, J.D H. Keatinge
IGC Proceedings (1977-2023)
The grassland and shrubland range types in upland Baluchistan have a climate which is continental, arid to semi-arid, and Mediterranean in character. Winter precipitation predominates but significant summer monsoonal rainfall occurs in the grassland areas. The latitudinal zone is from 28° to 32°N. Dominant species in the shrubland type are Artemisia maritima and Haloxylon griffithii, where the annual precipitation is 200 mm, with 80 % occurring during winter. Dominant species in the grassland type are Cymbopogon jwarancusa and Chrysopogon aucheri, where annual precipitation is 300 mm, with 40 % occurring in summer. Range stocking densities, mostly from sheep …
The Assessment Of Grazing Persistence And Vigor Of Tropical Forage Legumes For The Caribbean,
2025
University of the Virgin Islands
The Assessment Of Grazing Persistence And Vigor Of Tropical Forage Legumes For The Caribbean, M W. Michaud, Y Soso De Rosa, W D. Pitman, A E. Kretschmer Jr
IGC Proceedings (1977-2023)
Research in both the U.S. Virgin Islands (Oakes, 1970) and the Dominican Republic (Soto de Rosa, 1987) has identified forage legumes appropriate for pasture plantings. Despite the success of these research programs, there are still numerous untested accessions in international and regional collections that may be adapted to the climatic, edaphic, and management conditions ot the Caribbean. To test some of the more promising lines available from both commercial and experimental sources, tropical forage legumes were planted in St. Croix, U.S. Virgin Islands, and the Dominican Republic and subsequently grazed. The objectives of the research were to determine the most …
Persistence Of Subterranean Clover Cultivars In A Cleared Forest Area In Northern Greece,
2025
University of Thessaloniki
Persistence Of Subterranean Clover Cultivars In A Cleared Forest Area In Northern Greece, V Papanastasis, P Platis
IGC Proceedings (1977-2023)
Subterranean clover (Trifolium subterraneum L.) is considered a very valuable species for the improvement of degraded Mediterranean pastures and rangelands. Its persistence on such areas, however, depends on the particular cultivars used and the physical and chemical conditions of their soil (Gomez, 1981; Collins et al., 1984, Crespo and Romano, 1985). Degraded forests covered by shrubby oaks occupy large areas in northern Greece. The grazing value of these areas, especially for sheep, is very low. However, if the oaks are cleared by buldozer and the areas are sown after cultivation with subterranean clover, very productive pastures may be developed …
Improving Pasture Resources In West Africa: Evaluation Of Forage Legumes To Meet The Social And Ecological Constraints,
2025
International Livestock Centre for Africa
Improving Pasture Resources In West Africa: Evaluation Of Forage Legumes To Meet The Social And Ecological Constraints, S A. Tarawali, M Peters, M A. Mohamed Saleem
IGC Proceedings (1977-2023)
Throughout sub-Saharan Africa, poor nutrition is a major constraint to livestock production (Henzell and t'Mannetje, 1980). In the West African subhumid and semi arid zones, the harsh dry season means that the quality of the naturally available forage is insufficient to meet cattle maintenance requirements for more than half the year (Mohamed-Saleem, 1986) ; in more humid areas intensive cropping restricts access to fodder. The introduction of improved forage legumes is recognised to be a viable approach to alleviating this problem (Jones et al., 1984). In Nigeria, the International Livestock Centre for Africa (ILCA) has successfully introduced Stylosanthes pastures to …
Evaluation Of 16 Gliricidia Provenances In Dryland Farming Area In Bali,
2025
Udayana State University
Evaluation Of 16 Gliricidia Provenances In Dryland Farming Area In Bali, I M. Nitis, K Lana, M Suarna, W Sukanten, S Putra
IGC Proceedings (1977-2023)
The present taxonomy indicates that Gliricidia, with its origin in South America, consists of three species: G. sepium (Jacq.) Walp., G. maculata (HBK) Steud, and G. ehrenbergii (Schlecht) Rydb (Hugues, 1987). Gliricidia sepium is one of the shrub legume commonly used in the tropics for shade, fence, green manure, firewood and fodder (NFTA, 1987). However, it is not definitely known how its growth habit affects its utilization. The objectives of this study was to evaluate the growth of 16 provenances of Gliricidia sepium collected from 8 countries in the tropics.
