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

Physical Sciences and Mathematics Commons™

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

University of Kentucky

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 2401 - 2430 of 12002

Full-Text Articles in Physical Sciences and Mathematics

Variation Within The Species Macroptilium Atropurpureum Regarding Adaptation To Grazing, Cam K. Mcdonald, R. J. Clements Jun 2023

Variation Within The Species Macroptilium Atropurpureum Regarding Adaptation To Grazing, Cam K. Mcdonald, R. J. Clements

IGC Proceedings (1993-2023)

The twining legume Macroptilium atropurpureum cv. Siratro was released around 1960 (Hutton 1962) and the rust resistant cultivar Aztec was released in 1994 (Bray & Woodroffe 1995). The species showed great potential for pastures in northern Australia and was planted over some 220 Kha in the 1960's and 70's. The species was high yielding and readily eaten by cattle. However, by the early 1980's the species had declined dramatically in grazed pastures. Clements (1989) showed that a major problem with Siratro was the frequency of removal of growing points. This leads to less regrowth after grazing, less seed set and …

Go to article

Experiences With Establishing Legumes As Part Of A Ley Pasture In A Low-Input Farming System Of The Eastern Amazon, Brazil, S. Hohnwald, B. Rischkowsky, A. P. Camarão, J. A. Rodrigues-Filho, R. Schultze-Kraft, J. M. King Jun 2023

Experiences With Establishing Legumes As Part Of A Ley Pasture In A Low-Input Farming System Of The Eastern Amazon, Brazil, S. Hohnwald, B. Rischkowsky, A. P. Camarão, J. A. Rodrigues-Filho, R. Schultze-Kraft, J. M. King

IGC Proceedings (1993-2023)

In the Eastern Amazon extensive pasture management by smallholders can result in degradation of grassland, leading to unproductive and abandoned agricultural areas (Dias-Filho, 2003). To avoid long and costly restoration of those areas, ley-systems with alternating cropping and pasture phases might offer a promising solution. The inclusion of N-fixing legumes is seen as a suitable method to improve soil fertility during the pasture phase. As mono-cultures seem not to be appropriate, given the phytodiverse climax vegetation in the humid tropics, a combination of various shrub and herbaceous legume species is proposed. Thus, this paper tests a grass-legume mixture to replace …

Go to article

The Dry Matter Yield And Nutritive Value Of Wet Tolerant Tropical Forage Legumes In Single Cropping Or Mixed Cropping With Gramineous Forage Crops In Drained Paddy Field, Manabu Tobisa, Y. Nakano, K. Okano, Masataka Shimojo, Yasuhisa Masuda Jun 2023

The Dry Matter Yield And Nutritive Value Of Wet Tolerant Tropical Forage Legumes In Single Cropping Or Mixed Cropping With Gramineous Forage Crops In Drained Paddy Field, Manabu Tobisa, Y. Nakano, K. Okano, Masataka Shimojo, Yasuhisa Masuda

IGC Proceedings (1993-2023)

In Japan the production of rice has been controlled since the 1970's and some parts of the paddy fields have been laid off for forage production. However, in poorly-drained fields or fields with high ground water table, forage species with high tolerance of wet conditions are required. The tropical forage legumes Aeschynomene americana cv. Glenn (Glenn) and Macroptilium lathyroides (L.) Urb. cv. Murray (phasey bean) have a high wet endurance (Bishop et al., 1985; Tobisa et al., 1999) and show high dry matter productivity (Skerman et al., 1988; Tobisa et al., 1999). The objective of this …

Go to article

Enhancement Of Grassland Production Through Integration Of Forage Legumes In Semi-Arid Rangelands Of Kenya, P. N. Macharia, J. I. Kinyamario, W. N. Ekaya, C. K. K. Gachene Jun 2023

Enhancement Of Grassland Production Through Integration Of Forage Legumes In Semi-Arid Rangelands Of Kenya, P. N. Macharia, J. I. Kinyamario, W. N. Ekaya, C. K. K. Gachene

IGC Proceedings (1993-2023)

Livestock production in semi-arid rangelands of Kenya is limited by the seasonal quantity and quality of fodder. Kirkman & Carvalho (2003) stated that these inter- and intra-seasonal quality and quantity fluctuations result in nutrient deficits that severely limit livestock production potential. The objective of this experiment was to study the effect of three forage legumes on the production of natural pastures in semi-arid rangelands of Kenya.

Go to article

Desmanthus: A New Forage Legume To Improve Wool Growth In Tropical Australia, J. H. De A. Rangel, Carlos A. M. Gomide Jun 2023

Desmanthus: A New Forage Legume To Improve Wool Growth In Tropical Australia, J. H. De A. Rangel, Carlos A. M. Gomide

IGC Proceedings (1993-2023)

In tropical Australia, very short and erratic wet seasons are the critical factors in determining forage growth and animal production (Wheeler & Freer, 1986). Grasses are highly susceptible to low rainfall and animal production in such conditions become strictly seasonal. Improvements in meat and wool production by the introduction of stylo species (Stylosanthes sp.) into natural grasslands have been intensively reported (Gillard & Winter, 1984). However, there are currently no suitable introduced legumes for the c.28 million ha of Mitchell grass (Astrebla spp.) plains in heavy clay soils of western North Queensland, grazed predominately by wool producing Merino …

Go to article

Recent Advances In Stylosanthes Research In Tropical America, Bela Grof, Celso D. Fernandes, Jaqueline R. Verzignassi Jun 2023

Recent Advances In Stylosanthes Research In Tropical America, Bela Grof, Celso D. Fernandes, Jaqueline R. Verzignassi

IGC Proceedings (1993-2023)

The potential of neotropical savannas is very large for pasture-based livestock systems. There are 250 million ha of well-drained lowland savannas in the American tropics. Over 200 million ha are situated in the Cerrados region of Brazil. The Cerrados support 42% of the national herd. Although these ranges support large populations of livestock, productivity is generally low. Poor nutritive value of native pastures and monospecific swards of Brachiaria spp. is the principal cause of this low productivity, especially in the dry season when these grasslands often provide no more than 60% of the animal's maintenance requirements. The best option to …

Go to article

Desmodium Velutinum: A High-Quality Shrub Legume For Acid Soils In The Tropics, R. Schultze-Kraft, M. Peters, N. Vivas, F. Parra, L. H. Franco Jun 2023

Desmodium Velutinum: A High-Quality Shrub Legume For Acid Soils In The Tropics, R. Schultze-Kraft, M. Peters, N. Vivas, F. Parra, L. H. Franco

IGC Proceedings (1993-2023)

Drought tolerant legume shrubs can enhance the sustainability of smallholder production systems in the tropics through the provision, year-round, of high-quality feed and through their positive effect on soil. Desmodium velutinum (Willd.) DC. is one of the few shrub species that have been identified as (1) well adapted to acid tropical soils and (2) of good nutritive value (Schultze-Kraft, 1996). It is a perennial native to SE Asia and tropical Africa growing up to 3 m high, the velutinous (velvety) surfaces of its 1-foliolate leaves being a characteristic feature. It grows well on soils ranging from pH 4.0 to alkaline, …

Go to article

Agronomic Evaluation Of Twenty Ecotypes Of Leucaena Spp. For Acid Soil Conditions In México, J. F. Enríquez-Quiroz, A. Hernández-Garay, A. R. Quero-Carrillo Jun 2023

Agronomic Evaluation Of Twenty Ecotypes Of Leucaena Spp. For Acid Soil Conditions In México, J. F. Enríquez-Quiroz, A. Hernández-Garay, A. R. Quero-Carrillo

IGC Proceedings (1993-2023)

Leucaena leucocephala Lam. (de Witt) has been shown to be a good forage producer and to posses good persistence under grazing conditions in México tolerating well the management of local cattlemen (Quero et al., 2004). The Leucaena genus is native to Central America and Mexico (Hughes, 1998), but L. leucocephala is a low producer under acid soil conditions. The natural diversity is a good source of resistance to acid soil conditions resistance and to other adverse factors. Several Leucaena accessions were evaluated for production under acid soil conditions in tropical Mexico.

Go to article

Leucaena Production In Arid Botswana, F. P. Wandera, M. Karachi, S. Mangope, B. M. Lefofe Jun 2023

Leucaena Production In Arid Botswana, F. P. Wandera, M. Karachi, S. Mangope, B. M. Lefofe

IGC Proceedings (1993-2023)

The value of browse species as a source of nitrogen for grazing animals is restricted to wet seasons, with protein deficiencies being experienced by September (in dry winter season) in Southern Africa (Moleele 1998). This is when highly productive planted browse species would become useful to supplement the protein diet requirement of grazing animals (Morris & Du Toit 1998). Further, browse species can provide partly for protein requirement of intensive production systems, such as in feedlots and dairies. This paper reports work on the introduction and screening of Leucaena for Botswana conditions.

Go to article

Effect Of Type Of Tree Leaves On Intake, Nutrient Utilisation And Rumen Fermentation Pattern In Goat Fed With Cenchrus Ciliaris Grass, S. Singh, S. S. Kandu, L. K. Karnani Jun 2023

Effect Of Type Of Tree Leaves On Intake, Nutrient Utilisation And Rumen Fermentation Pattern In Goat Fed With Cenchrus Ciliaris Grass, S. Singh, S. S. Kandu, L. K. Karnani

IGC Proceedings (1993-2023)

Grasses and tree leaves/shrubs are the major feeds available from grasslands and grazing fields. There is though a dearth of information on the nutritional value of tree foliage although available information was collated by Shelton et al. (1995). This study evaluated the relative nutritive value of two foliages for goats.

Go to article

Ensiling Characteristics And Nutritive Value Of Browse/Maize Forage Mixtures, F. B. Bareeba, H. Kato, Elly N. Sabiiti Jun 2023

Ensiling Characteristics And Nutritive Value Of Browse/Maize Forage Mixtures, F. B. Bareeba, H. Kato, Elly N. Sabiiti

IGC Proceedings (1993-2023)

The practice of growing fodder tree and shrubs is being advocated for and adopted in smallholder dairy production systems. In Uganda, Calliandra calothyrsus, Gliricidia sepium, and Leucaena leucocephala have been identified and recommended as the most suitable species (Sabiiti, 2001). However tree foliage contains toxic compounds (Lowry, 1990), which may be alleviated by ensiling. The objective of the experiment was to study the ensiling characteristics of browse/ maize forage mixtures and their nutritive value when fed to lactating dairy cows.

Go to article

The Effect Of Fermentation Of Calliandra Calothyrsus, Gliricidia Sepium, Leucaena Leucocephala And Maize Forage On Rumen Degradation And Microbial Protein Synthesis, H. Kato, F. B. Bareeba, Elly N. Sabiiti, C. Ebong Jun 2023

The Effect Of Fermentation Of Calliandra Calothyrsus, Gliricidia Sepium, Leucaena Leucocephala And Maize Forage On Rumen Degradation And Microbial Protein Synthesis, H. Kato, F. B. Bareeba, Elly N. Sabiiti, C. Ebong

IGC Proceedings (1993-2023)

Ensiling as a means of storing green fodder by acidification has a profound effect on the chemical composition of the resultant silage. Ensiling could therefore, ameliorate the effects of anti-nutritional factors associated with browses. The objective of the experiment was to determine fermentation characteristics and rumen degradation (D) of ensiled Calliandra calothyrsus (C), Gliricidia sepium (G), Leucaena leucocephala (L) and maize forage.

Go to article

Persistence Of Tall Fescue And Cattle Grazing Preference As Affected By Endophyte Status, D. J. Lang, S. P. Wang, A. Tokilita, R. Given, M. Salem, R. Elmore Jun 2023

Persistence Of Tall Fescue And Cattle Grazing Preference As Affected By Endophyte Status, D. J. Lang, S. P. Wang, A. Tokilita, R. Given, M. Salem, R. Elmore

IGC Proceedings (1993-2023)

Endophyte-infected (E+) grasses often exhibit increased survival, growth and resistance to herbivory compared to uninfected counterparts. Latch (1997) proposed a strategy for cultivar improvement of infecting elite cultivars with strains of Neotyphodium coenophialum that are non-toxic to livestock, but still able to convey the persistence advantage shown with wild-type, toxic endophyte. The strategy of re-infecting tall fescue (Lolium arundinaceum (Schreb.) Darbysh.) cultivars with naturally occurring, non-ergot-producing endophytes appears promising for removing animal toxicity symptoms and retaining agronomic performance (Bouton et al., 2002; Hill et al., 2002). The objective of this study was to compare the effect of …

Go to article

Performance Of Animals Grazing Various Tall Fescue / Endophyte Combinations, Andrew A. Hopkins Jun 2023

Performance Of Animals Grazing Various Tall Fescue / Endophyte Combinations, Andrew A. Hopkins

IGC Proceedings (1993-2023)

Endophyte (Neotyphodium coenophialum) infection can improve tall fescue persistence (Read & Camp, 1986), but animals grazing wild type tall fescue often suffer from reduced performance and poor health (Hoveland et al., 1983). Novel endophytes do not produce the alkaloids implicated in animal toxicity and can help maintain stand longevity while minimizing animal health problems (Bouton et al., 2002). The objectives of this research were to compare productivity and health of animals grazing various tall fescue / endophyte combinations, and the persistence of these combinations under grazing in the Southern Plains of the USA.

Go to article

Recovery Of Yearling Calves From Fescue Toxicosis, G. E. Aiken, M. L. Looper, S. F. Tabler, J. R. Strickland Jun 2023

Recovery Of Yearling Calves From Fescue Toxicosis, G. E. Aiken, M. L. Looper, S. F. Tabler, J. R. Strickland

IGC Proceedings (1993-2023)

Tall fescue (Lolium arundinaceum (Schreb.) S.J. Darbyshire) is widely utilized for grazing in the transition zone between the temperate and subtropical regions of the eastern U.S.A. Cattle grazing tall fescue frequently exhibit fescue toxicosis, a malady caused by consumption of toxins produced by the endophyte, Neotyphodium coenophialum. Symptoms of fescue toxicosis include retention of rough hair coat, increased body temperature and laboured respiration. Heat stress may be severe at onset of high ambient temperature and humidity. Transporting cattle exhibiting toxicosis can therefore be difficult because combined stresses of the toxicosis and transporting often result in high mortality. An experiment …

Go to article

Reduce Tall Fescue Toxicosis In Festuca Arundinacea Forage Systems With Legumes, J. C. Waller, A. E. Fisher, H. A. Fribourg, C. J. Richards Jun 2023

Reduce Tall Fescue Toxicosis In Festuca Arundinacea Forage Systems With Legumes, J. C. Waller, A. E. Fisher, H. A. Fribourg, C. J. Richards

IGC Proceedings (1993-2023)

Tall fescue (Lolium arundinaceum = Festuca arundinacea) is an important cool-season grass because of persistence and spring and autumn productivity. Most existing tall fescue pastures in Tennessee are Kentucky-31 (KY-31) and are infested with the endophytic fungus Neotyphodium coenophialum that causes tall fescue toxicosis. Symptoms in beef cattle include reduced rates of gain, poor conception rates, decreased dry matter intake, a long rough haircoat in summer, and very low serum prolactin. Earlier studies indicated that the performance of cattle grazing endophyte-free (EF) tall fescue is superior to that of cattle grazing endophyte-infected (EI) tall fescue (Fribourg et al …

Go to article

Milk Production From Cows Grazing Perennial Ryegrass Pastures Infected With Wild Or Ar1 Endophyte In New Zealand, Stephanie J. Bluett, E. R. Thom, D. A. Clark Jun 2023

Milk Production From Cows Grazing Perennial Ryegrass Pastures Infected With Wild Or Ar1 Endophyte In New Zealand, Stephanie J. Bluett, E. R. Thom, D. A. Clark

IGC Proceedings (1993-2023)

Most perennial ryegrass (Lolium perenne) cultivars in New Zealand are available with either the natural wild endophyte (Neotyphodium lolii); the AR1 novel endophyte (no lolitrem B or ergovaline production); or endophyte-free. Although wild endophyte protects ryegrass against insect attack, improving pasture persistence, it can also cause ryegrass staggers and reduced animal performance. Endophyte AR1 does not cause ryegrass staggers but still protects against insect pests such as Argentine stem weevil (Listronotus bonariensis). A 3-year farmlet experiment was carried out to evaluate the effects of AR1 and wild endophyte-infected ryegrass on pasture performance, milk production …

Go to article

The Effects Of Exposure To Endophyte-Infected Tall Fescue Seed On Faecal And Urine Concentrations Of Ergovaline And Lysergic Acid In Mature Gelding Horses, C. L. Schultz, S. L. Lodge-Ivey, A. M. Craig, James R. Strickland, L. P. Bush Jun 2023

The Effects Of Exposure To Endophyte-Infected Tall Fescue Seed On Faecal And Urine Concentrations Of Ergovaline And Lysergic Acid In Mature Gelding Horses, C. L. Schultz, S. L. Lodge-Ivey, A. M. Craig, James R. Strickland, L. P. Bush

IGC Proceedings (1993-2023)

Despite the good nutritive value of endophyte-infected tall fescue, consumption by livestock results in a decrease in both reproductive and growth performance due to ergot alkaloids produced by an endophytic fungus (Cross et al., 1995). Little research has investigated the metabolic fate of ergot alkaloids and/or their metabolites in grazing horses. Thus, the objectives of this experiment were: a) to determine concentrations of ergovaline (EV) and lysergic acid (LA) in the faeces and urine of geldings exposed to tall fescue seed over a time course experiment and b) to measure the effects of alkaloid-containing tall fescue on nutrient digestibility …

Go to article

Ergovaline And Ergovalinine And Tall Fescue Content Of Pastures In Central Kentucky, P. W. Long, Jimmy C. Henning, L. P. Bush Jun 2023

Ergovaline And Ergovalinine And Tall Fescue Content Of Pastures In Central Kentucky, P. W. Long, Jimmy C. Henning, L. P. Bush

IGC Proceedings (1993-2023)

Kentucky has > 2Mha of tall fescue (Festuca arundianacea Schreb.) grown mainly for livestock consumption. Many alkaloids in tall fescue are produced in a mutualistic association between tall fescue and an endophytic fungus (Neotyphodium coenophialum) (Long et al., 2002). Ingestion of tall fescue by livestock may depress reproduction and growth (Schultz & Bush, 2002). Not all Kentucky fields of tall fescue are thought to be infected with endophyte, but forage samples from all surveyed pastures had measurable ergopeptine alkaloids. Therefore, it is reasonable to assume that some of the tall fescue plants in these fields were infected. …

Go to article

Studies Of Seed Characteristics Of Ecotypes Of Lucerne, Bromus And Agropyron In Response To Fusarium Oxysporum And F. Solani, M. A. Alizadeh Jun 2023

Studies Of Seed Characteristics Of Ecotypes Of Lucerne, Bromus And Agropyron In Response To Fusarium Oxysporum And F. Solani, M. A. Alizadeh

IGC Proceedings (1993-2023)

Vigorous seeds and seedlings are more resistant to pathogens than non-vigorous seeds and seedlings (Kim, 1994). Therefore, it is necessary to assess seed and seedling performance in response to seed borne fungi.

Go to article

The Effects Of Symbiotic Mycorrhizal Fungi On Drought Tolerance And Forage Production Of Lucerne (Medicago Sativa), H. Panahpour Jun 2023

The Effects Of Symbiotic Mycorrhizal Fungi On Drought Tolerance And Forage Production Of Lucerne (Medicago Sativa), H. Panahpour

IGC Proceedings (1993-2023)

Arbuscular mycorrhizal fungi (AMF) form beneficial symbioses with the roots of many plants. This association allows them to maintain themselves and grow well under relatively harsh conditions (Sieverding, 1986). They also improve the ability of plants to withstand or have enhanced water acquisition capability. AMF symbioses assist to extend crop and forage plants into arid and semi arid zones. In this research effects of AMF symbiosis were studied on drought tolerance and forage production of lucerne (Medicago sativa).

Go to article

Selection Of Australian Root Nodule Bacteria For Broad-Scale Inoculation Of Native Legumes, R. G. Bennett, R. J. Yates, E. L. J. Watkin, Graham W. O'Hara, M. J. Dilworth Jun 2023

Selection Of Australian Root Nodule Bacteria For Broad-Scale Inoculation Of Native Legumes, R. G. Bennett, R. J. Yates, E. L. J. Watkin, Graham W. O'Hara, M. J. Dilworth

IGC Proceedings (1993-2023)

The unique and diverse native Australian perennial legumes are under current investigation for use as pastures in Australian agriculture. Identification of root nodule bacteria (RNB) that can fix nitrogen effectively for the plant is a critical factor for the success of a legume species in agriculture (Howieson et al., 2000). Some legumes under investigation are relatively promiscuous (Lange, 1961). This trait may allow the development of a single, broad-scale inoculant that could allow inoculation of multiple species of agricultural importance, whilst more effective, specific RNB are developed in time. Aimed to identify strains that can form effective symbioses with …

Go to article

A New Napier Grass Stunting Disease In Kenya Associated With Phytoplasma, Apollo B. Orodho, S. I. Ajanga, P. Jones, P. O. Mudavadi Jun 2023

A New Napier Grass Stunting Disease In Kenya Associated With Phytoplasma, Apollo B. Orodho, S. I. Ajanga, P. Jones, P. O. Mudavadi

IGC Proceedings (1993-2023)

Napier grass (Pennisetum purpureum Schum) is a cultivated elephant grass native to Eastern and Central Africa forming the major livestock feed on East African smallholder dairy farms (Valk, 1990) as it is suitable for cut and carry for zero-grazing management systems. Although several plant pathogens have been described historically they were seldom severe. However, in 1970s there was an outbreak of snow mould fungal disease caused by Beniowskia spheroidea that attacked most varieties of napier grass. A napier grass variety clone 13 was bred which is resistant to the disease. In the 1990s two major outbreaks of napier grass …

Go to article

Forage Arachis In Nepal: A Simple Success, A. D. Robertson Jun 2023

Forage Arachis In Nepal: A Simple Success, A. D. Robertson

IGC Proceedings (1993-2023)

Nepali farming systems are remarkably diverse. Livestock play a central role in livelihoods and sustainable farming on most farms. There is a need for productive forage legumes that can fit existing farming patterns and that can be multiplied easily. A wide array of genetic material has been introduced recently into the cropping, cut-and-carry, grazing, and forestry systems, mainly in the Terai (Ganges Plain) and in the "mid-hills" to about 2km ASL. In 1999/2000, 8 lines of Arachis pintoi were introduced from CIAT, and additional A. pintoi and A. glabrata lines from Queensland. The introduced arachis was established on a …

Go to article

A Study In Cuba Of The Biology, Ecology And Agroecological Management Of Heteropsylla Cubana Crawford In Leucaena Leucocephala (Lam.) De Wit, N. Valenciaga, M. Felicia Díaz, T. E. Ruíz, M. Fernández, C. Mora Jun 2023

A Study In Cuba Of The Biology, Ecology And Agroecological Management Of Heteropsylla Cubana Crawford In Leucaena Leucocephala (Lam.) De Wit, N. Valenciaga, M. Felicia Díaz, T. E. Ruíz, M. Fernández, C. Mora

IGC Proceedings (1993-2023)

As a consequence of the increase in Leucaena leucocephala areas to counter the shortage of feed in Cuban cattle production, there is a risk of the development of Heteropsylla cubana Crawford (Hemiptera: Psyllidae) as a pest in silvopastoral systems with this legume. This psyllid is known to be the main phytophagous pest (Valenciaga, 2003), which produces damage in 95% of the apical region of branches. Since information on the identification and biology of a pest species is a necessary prerequisite for its management, a taxonomic, biological and ecological study was conducted to define Heteropsylla behaviour in Cuban conditions and elaborate …

Go to article

Dual Purpose Cowpea For West Africa, Shirley A. Tarawali, I. Okike, P. Kristjanson, B. B. Singh, P. K. Thornton Jun 2023

Dual Purpose Cowpea For West Africa, Shirley A. Tarawali, I. Okike, P. Kristjanson, B. B. Singh, P. K. Thornton

IGC Proceedings (1993-2023)

Cowpea (Vigna unguiculata (L.) Walp. ) is grown as an intercrop with cereals in some 9M ha of West Africa, mostly in the dry savanna. Though grain yields are low (circa 500 kg/ha), it is a nutritious food and dry season fodder. The haulms (leaves and stems) are cut and stored after grain harvest. It aids soil fertility by fixing soil N and returning N via manure from ruminants fed with haulms. Up to the early 1990s, research had focused on developing high grain yielding varieties. Recognition of farmers' appreciation of multiple uses, in particular the fodder value and …

Go to article

Planted Forage Legumes In West Africa, Shirley A. Tarawali, P. K. Thornton, N. De Haan Jun 2023

Planted Forage Legumes In West Africa, Shirley A. Tarawali, P. K. Thornton, N. De Haan

IGC Proceedings (1993-2023)

Planted forage legumes were introduced into West Africa circa 1950. Since then, a range of species and strategies for their introduction into farming have been evaluated. Approaches to both evaluation and use have changed considerably, especially in the past 15 years. Much of the early research was on-station and focused on using mainly Stylosanthes species as introduced pastures. The Stylosanthes "fodder bank" concept followed this, but with a fairly stringent "recipe" for farmers to manage and use the legume "bank" for strategic ruminant supplementation in the dry season. Later evaluation included more legume species, more participatory approaches, and identification of …

Go to article

Fodder Shrubs For Improving Incomes Of Dairy Farmers In The East African Highlands, Steven Franzel, C. Wambugu, J. Stewart, J. Cordero, B. D. Sande Jun 2023

Fodder Shrubs For Improving Incomes Of Dairy Farmers In The East African Highlands, Steven Franzel, C. Wambugu, J. Stewart, J. Cordero, B. D. Sande

IGC Proceedings (1993-2023)

Smallholder dairying is an important enterprise in the highlands of E Africa. Farm sizes average 1-2ha and zero-grazing, cut-and-carry systems predominate. Inadequate protein reduces milk production and forces many farmers to spend scarce cash on commercial dairy meal supplements. In 1991, on-farm trials on fodder shrubs were started in Embu District as a collaborative venture of the Kenya Agricultural Research Institute, the Kenya Forestry Research Institute, and the World Agroforestry Centre. Calliandra calothyrsus was released to farmers in 1995 and was followed by Leucaena trichandra, mulberry (Morus alba), and Sesbania sesban. Farmers produce seedlings of calliandra …

Go to article

Stylo In India: Much More Than A Plant For The Revegetation Of Wasteland, C. R. Ramesh, S. Chakraborty, P. S. Pathak, Nagaratna Biradar, P. Bhat Jun 2023

Stylo In India: Much More Than A Plant For The Revegetation Of Wasteland, C. R. Ramesh, S. Chakraborty, P. S. Pathak, Nagaratna Biradar, P. Bhat

IGC Proceedings (1993-2023)

Since the 1950s introductions of Stylosanthes scabra, S. hamata and S. guianensis from Australia, South America, the USA and Africa have continued in India. Although no cultivar has been released, selections of S. scabra, S guianensis and S. hamata are used in a range of environmental and commercial production systems. A large seed industry spanning >400 ha and run by >600 smallholder farmers producing 800t seeds/ year supports this usage (Rao et al., 2004). Stylo is mainly used in India for revegetation of wastelands where it reduces soil erosion and offers fodder for livestock (Pathak et al …

Go to article

Stylos: The Broad Acre Legumes Of N Australian Grazing Systems, John P. Rains Jun 2023

Stylos: The Broad Acre Legumes Of N Australian Grazing Systems, John P. Rains

IGC Proceedings (1993-2023)

Early accidental introduction of Stylosanthes humilis into the N Australian savannas in the early 20th century and its contrived spread by the late 1960s led to the release of more perennial types. Townsville Stylo, as it was known, colonised large areas and had reached its climatic and agronomic limits by the 1970s. It had a major impact on beef production in areas where natural carrying capacities were relatively low. The precedent of Townsville Stylo directed attention to the genus Stylosanthes. This impact continued until 1974 when anthracnose virtually wiped it out. Fortunately 2 other Stylosanthes species, S. hamata cv. Verano …

Go to article

First Prev Next Last