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- Nutritive value (120)
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Yield And Quality Parameters Of An Interspecific Hybrid Pennisetum Purpureum Schum. (Elephant-Grass) X Pennisetum Glaucum (L.) R. Br. Stuntz (Pearl Millet), J. A. Usberti Jr., R. Usberti, P. B. Alcantara, V. B. G. Alcantara, R. A. Possenti, M. A. C. Lucena
Yield And Quality Parameters Of An Interspecific Hybrid Pennisetum Purpureum Schum. (Elephant-Grass) X Pennisetum Glaucum (L.) R. Br. Stuntz (Pearl Millet), J. A. Usberti Jr., R. Usberti, P. B. Alcantara, V. B. G. Alcantara, R. A. Possenti, M. A. C. Lucena
IGC Proceedings (1977-2023)
Elephant-grass is a tropical forage grass used either as a supplement fodder or for direct grazing. It usually shows regular nutritive value (6-13% crude protein, CP, and 55-60% forage digestibility) (Alcantara et al., 1981). Most of the available cultivars produce no viable seeds. On the other hand, pearl millet has high seed yielding potential along with high quality forage (>15% CP and 70% forage digestibility). However, it shows poor forage production, low field persistence under grazing and low regrowth potential after cutting or grazing. During the 90's, an interspecific hybrid between the two species was developed, trying to …
Breeding A Psyllid-Resistant Interspecific Hybrid Leucaena For Beef Cattle Production In Northern Australia, Scott A. Dalzell, F. Lemos De Moraes, G. Solis Pasos
Breeding A Psyllid-Resistant Interspecific Hybrid Leucaena For Beef Cattle Production In Northern Australia, Scott A. Dalzell, F. Lemos De Moraes, G. Solis Pasos
IGC Proceedings (1977-2023)
Production of the valuable fodder tree legume Leucaena leucocephala (leucaena) is limited to the subhumid (600-800 mm annual rainfall) areas of northern Australia by the psyllid insect pest Heteropsylla cubana. Defoliation caused by severe psyllid infestations can suppress forage yields of commercial leucaena varieties by 50-80%. Susceptibility to psyllid damage is a major impediment to grazier adoption of leucaena pastures in the more humid tropical areas of Australia. A comprehensive international agronomic evaluation of the entire Leucaena genus (Mullen et al., 2003) revealed that the artificial interspecific F1 hybrid of L. pallida x L. leucocephala ssp. glabrata …
New Pigeon Pea (Cajanus Cajan) Hybrids With Desirable Forage Traits, P. B. Alcantara, J. A. Usberti Jr., C. A. Colombo, V. B. G. Alcantara, R. Usberti, M. A. C. Lucena, M. Harris
New Pigeon Pea (Cajanus Cajan) Hybrids With Desirable Forage Traits, P. B. Alcantara, J. A. Usberti Jr., C. A. Colombo, V. B. G. Alcantara, R. Usberti, M. A. C. Lucena, M. Harris
IGC Proceedings (1977-2023)
Pigeon pea is a tropical forage legume usually sown in mixed pastures with tropical forage grasses. Most of the available cultivars shows erect and tall plants with poor tillering potential, breakable thick stems, low leaf/stem ratios (fresh/dry matter) and low persistence under animal grazing. It shows a high dry matter production, due to low leaf/stem ratios (Barnes & Addo, 1997). Pigeon pea shows good crude protein levels/dry matter (ranging from 14-23%) and regular in vitro digestibility indexes (52-58%) (Karachi & Matata, 1996); animal consumption is affected by high tannin levels of young leaves. Being a self-pollinated species, the variability for …
Quantifying The Variation In Protein Content In White Clover (Trifolium Repens L.), A. H. Marshall, E. Sizer, A. Kingston-Smith, A. Williams, M. T. Abberton
Quantifying The Variation In Protein Content In White Clover (Trifolium Repens L.), A. H. Marshall, E. Sizer, A. Kingston-Smith, A. Williams, M. T. Abberton
IGC Proceedings (1977-2023)
White clover (Trifolium repens L.) is the main legume in temperate pastures. It has relatively low levels of water-soluble carbohydrate but produces forage of high quality with a high crude protein (CP) content and dry-matter digestibility (Beever, 1993). Some studies have suggested that the forage quality of white clover can be problematic because its high CP content may contribute to inefficient use of nitrogen in the rumen and exacerbate diffuse pollution via excreta (Waghorn & Caradus, 1994). The development of white clover germplasm with lower CP content would potentially benefit forage production and grassland management. A study was carried …
Factor Analysis Of Components Of Yield And Quality Traits In Lucerne (Medicago Sativa), A. A. Jafari, A. Ghamari Zare
Factor Analysis Of Components Of Yield And Quality Traits In Lucerne (Medicago Sativa), A. A. Jafari, A. Ghamari Zare
IGC Proceedings (1977-2023)
Lucerne (Medicago sativa) originated from Iran and is one of the most important forage species in this country. The improvement in yield and quality traits are important objectives in breeding programmes. Smith et al. (1997) indicated that in the context of dairy production ranked digestibility was the most important criterion whilst high crude protein and low fibre content were of moderate priority. This study sought to determine the dependence relationships between yield, morphological and quality traits in 64 genotypes.
Genetic And Molecular Characterization Of Temperate And Tropical Forage Maize Inbred Lines, B. Alarcón-Zúñiga, E. Valadez-Moctezuma, T. Cervantes-Martinez, T. Cervantes-Santana, M. Mendoza‐Rodriguez
Genetic And Molecular Characterization Of Temperate And Tropical Forage Maize Inbred Lines, B. Alarcón-Zúñiga, E. Valadez-Moctezuma, T. Cervantes-Martinez, T. Cervantes-Santana, M. Mendoza‐Rodriguez
IGC Proceedings (1977-2023)
Livestock feeding in the Central highland of Mexico is based on harvest, grazing and annual forage conservation, with forage maize being the most important silage crop (Alarcón, 1995). Even though forage maize is extensively bred in Europe, USA and Asia since the 1900’s, this started in Mexico only in the 1960’s, and little is known about genetic diversity in both agronomic and nutritive value traits. Our breeding program goals are to analyze combining ability of biomass and quality predictors and to study the genetic relationship of inbred lines between lowland tropical and temperate races from Mesa Central, by genetic and …
An Agronomic Evaluation Of Grazing Maize Combined With Companion Crops For Sheep In Northwestern Kwazulu-Natal, South Africa, C. S. Dannhauser, E. A. Van Zyl
An Agronomic Evaluation Of Grazing Maize Combined With Companion Crops For Sheep In Northwestern Kwazulu-Natal, South Africa, C. S. Dannhauser, E. A. Van Zyl
IGC Proceedings (1977-2023)
Northwestern KwaZulu-Natal (KZN), in South Africa, is well known for its sheep production from natural rangeland in summer (October to May). During winter however, the nutritional value of the rangeland cannot maintain young growing sheep or pregnant and lactating ewes. With this in mind Lyle (1991) suggested the use of planted pastures for the winter. Crichton, Gertenbach & Henning (1998) and Esterhuizen & Niemand (1989) suggested maize crop residues for both cattle and sheep during winter, whereas Moore (1997) evaluated grazing maize (not harvested) for this purpose. He found that the protein content of the crop was inadequate and for …
Effect Of Pre-Planting Seed Treatment Options On Dormancy Breaking And Germination Of Ziziphus Mucronata, Abubeker Hassen, N. F. G. Rethman, Willem A. Van Niekerk
Effect Of Pre-Planting Seed Treatment Options On Dormancy Breaking And Germination Of Ziziphus Mucronata, Abubeker Hassen, N. F. G. Rethman, Willem A. Van Niekerk
IGC Proceedings (1977-2023)
Ziziphus mucronata (Buffalo thorn) is a multipurpose tree, widely adapted to a range of ecological conditions and tolerant of extreme climatic conditions, including frost and drought (Venter & Venter, 1996). It is a valuable fodder tree for livestock and game animals, especially in the drier parts of Africa (Rothauge et al. 2003). Similar to many other leguminous species, establishment is constrained by low and erratic germination of the seed, which has been attributed mainly to the physical barrier of the stony endocarp and dormancy associated with seed coat impermeability. This experiment aimed to compare the suitability of various seed treatment …
The Productivity Of Coastal Meadows In Finland, R. Nevalainen, A. Huuskonen, S. Jaakola, J. Kiljala, E. Joki-Tokola
The Productivity Of Coastal Meadows In Finland, R. Nevalainen, A. Huuskonen, S. Jaakola, J. Kiljala, E. Joki-Tokola
IGC Proceedings (1977-2023)
The coastal meadows of Finland have gained a new interest as a summer pasture for cattle. These habitats have great historical, aesthetic and biological value (Pessa & Anttila, 2000). Typical features of the coastal meadows are the varying vegetation zones and wet, sometimes waterlogged, soils. The meadows are important nesting and feeding habitats for many water birds. When grazing ceases, reeds, trees and shrubs take over and the area loses its openness. Lately the amount of grasslands and pastures has drastically declined all over Europe. In Finland, the area of semi-natural biotopes has decreased to 1% of what it had …
Grazing Animal Production Systems And Grazing Land Characteristics In A Semi-Arid Region Of Greece, I. Hadjigeorgiou, G. Economou, D. Lolis, N. Moustakas, G. Zervas
Grazing Animal Production Systems And Grazing Land Characteristics In A Semi-Arid Region Of Greece, I. Hadjigeorgiou, G. Economou, D. Lolis, N. Moustakas, G. Zervas
IGC Proceedings (1977-2023)
Rough grazing in Greece cover about 40% of the total land area, is publicly owned and managed extensively (Hadjigeorgiou et al., 2002). The Prefecture of Larisa is in the centre of Greece, and has 212,000 ha of rough grazing land, with a variable topography ranging from sea level up to 3,000 m a.s.l. This area is utilized by a total population of 135,000 LU (mainly sheep, goats and some suckler cows), which consumes annually an appreciable fraction of their total nutrient requirements from rough grazing.
The Long Road To Developing Native Herbaceous Summer Forage Legume Ecotypes, James P. Muir, T. J. Butler, W. R. Ocumpaugh
The Long Road To Developing Native Herbaceous Summer Forage Legume Ecotypes, James P. Muir, T. J. Butler, W. R. Ocumpaugh
IGC Proceedings (1977-2023)
Only a handful of well-adapted herbaceous summer forage legumes are currently marketed for drier regions of North America and even fewer are true natives. There is a growing demand for native germplasm in the region as a new generation of landowner attempts to return grasslands to a semblance of their original species and diversity. The objective of this paper is to describe preliminary research results of a grasslands team collecting, studying and promulgating native leguminous germplasm in Texas.
Inner Mongolian Herders Move Toward Sustainability And Elevate Their Incomes From Cashmere Goat Production By Reducing Grazing Pressure On Fragile Grasslands, B. P. Fritz, M. Zhao
Inner Mongolian Herders Move Toward Sustainability And Elevate Their Incomes From Cashmere Goat Production By Reducing Grazing Pressure On Fragile Grasslands, B. P. Fritz, M. Zhao
IGC Proceedings (1977-2023)
Overgrazing, mainly caused by Cashmere goats, is contributing to the desertification of West Erdos fragile grasslands resulting in the threat of extinction of several endangered wild plant species. This transition area between desert and grassland includes some 400,000 ha and some 72 unique, relic and endangered plant species. The area is home to 5,000 inhabitants, mainly subsistent goat farming families and coal mining activity. Industrial land use in the reserve adds additional economic pressure to herders operating on a shrinking land base. This phenomenon has elicited the entrenched, traditional response of producing more livestock thus jeopardizing current levels of production …
Cow-Calf Production On Perennial Pastures In The Central Semi-Arid Region Of Argentina, C. A. Frasinelli, K. Frigerio, J. Martínez Ferrer, J. H. Veneciano
Cow-Calf Production On Perennial Pastures In The Central Semi-Arid Region Of Argentina, C. A. Frasinelli, K. Frigerio, J. Martínez Ferrer, J. H. Veneciano
IGC Proceedings (1977-2023)
In cow-calf production systems in San Luis, the annual crops are heavily used (eastern region) or the natural pastures are over-used (western region). Both cases constitute unsustainable systems. In the present study, the possibility of structuring an efficient and stable stockbreeding agroecosystem based exclusively on perennial summer grasses was tested. The objectives were: 1) to test a cow-calf production system based on perennial pastures: Digitaria (Digitaria eriantha Steudel subsp. eriantha cv Irene), without protein supplement during winter, and 2) to determine the physical and economical efficiency of the production system and sustainability of such indicators in the short-term (6 …
Snp Discovery And Haplotypic Variation In Full-Length Herbage Quality Genes Of Perennial Ryegrass (Lolium Perenne L.), R. C. Ponting, M. C. Drayton, N. O. I. Cogan, G. C. Spangenberg, K. F. Smith, J. W. Forster
Snp Discovery And Haplotypic Variation In Full-Length Herbage Quality Genes Of Perennial Ryegrass (Lolium Perenne L.), R. C. Ponting, M. C. Drayton, N. O. I. Cogan, G. C. Spangenberg, K. F. Smith, J. W. Forster
IGC Proceedings (1977-2023)
The development of forages with enhanced nutritive value through improvements of herbage quality (digestibility, carbohydrate content) is potentially capable of increasing both meat and milk production by up to 25%. However, the expense and time-consuming nature of the relevant biochemical and biophysical assays has limited breeding improvement for forage quality. The development of accurate high-throughput molecular marker-based selection systems such as single nucleotide polymorphisms (SNPs) permits evaluation of genetic variation and selection of favourable variants to accelerate the production of elite new varieties.
Effect Of Urea-Treated Pennisetum Pedicellatum And Supplementation Of Concentrates With Urea On Milk Production Of "Mossi" Ewes, V. M. C. Bougouma-Yameogo, A. J. Nianogo
Effect Of Urea-Treated Pennisetum Pedicellatum And Supplementation Of Concentrates With Urea On Milk Production Of "Mossi" Ewes, V. M. C. Bougouma-Yameogo, A. J. Nianogo
IGC Proceedings (1977-2023)
The "Mossi" sheep is a near parent of "Djallonke" sheep that live in sudano-sahelian area of Burkina Faso. However, there are few available results on dairy production from this breed. The treatment of straw with urea is a technique used in several developing countries to improve the nutritional value of gramineous forages (Sourabié et al., 1995). The aim of this study was to test the influence on the performance of "Mossi" ewes and on milk composition of treatment of Pennisetum pedicellatum (Pp) with urea in comparison with addition of urea to the concentrate feed.
Germplasm Collection And Dry Matter Production Of Mongolian Forage Plants, D. Tsogoo, Sh. Batsukh
Germplasm Collection And Dry Matter Production Of Mongolian Forage Plants, D. Tsogoo, Sh. Batsukh
IGC Proceedings (1977-2023)
Mongolian rangelands harbour 564 genera, 128 families and 2,823 species of plants (Gubanov, 1996). Approximately 600 species can be used as forage plants (Yunatov, 1968). There are 5 to 6 species of perennial forage plants that are unique to Mongolia and the country has a domestic cultivar "Burgaltai" of lucerne. This paper provides the results of a study on vegetative and seed yield of germplasm collected from naturally occurring forage plants during 1976-2003. To date, seeds have been collected and are involved in the experimental work from approximately 70 percent of forage plants available at the forage plant …
The Feasibility Of Autoclave-Assisted Water Soluble Carbohydrate Extraction To Distinguish Annual Ryegrass Genotypes At The Seedling Stage, L. P. Passos, F. B. De Sousa, A. Mittelmann, M. C. Vidigal, I. G. Perry, L. O. Cruz, J. A. Magalhães
The Feasibility Of Autoclave-Assisted Water Soluble Carbohydrate Extraction To Distinguish Annual Ryegrass Genotypes At The Seedling Stage, L. P. Passos, F. B. De Sousa, A. Mittelmann, M. C. Vidigal, I. G. Perry, L. O. Cruz, J. A. Magalhães
IGC Proceedings (1977-2023)
Annual ryegrass (Lolium multiflorum) swards are being used increasingly in Southern Brazil as animal forage (Carvalho et al., 2001). As observed elsewhere, reduced forage availability and quality during dry or cold seasons often limits the efficacy of pasture utilisation. As reported by Meissner et al. (1992), this demands breeding efforts to improve forage nutritive value. However, lack of concurrent examination of large number of samples for important nutritional parameters, like water-soluble carbohydrate (WSC) levels, which could lead to more precise selection strategies, is a common constraint of those programs. This study aimed to verify the suitability …
Variability And Correlations Of Some Investigated Traits Of Perennial Ryegrass Populations, D. Sokolovic, S. Ignjatovic, Z. Tomic
Variability And Correlations Of Some Investigated Traits Of Perennial Ryegrass Populations, D. Sokolovic, S. Ignjatovic, Z. Tomic
IGC Proceedings (1977-2023)
Perennial ryegrass (Lolium perenne) is one of the most important perennial forage grasses for temperate climates. It is a highly productive grass with the highest nutritive value (Sokolovi et al., 2002). In Serbia, breeders have developed perennial ryegrass cultivars with high stabile yield and quality with different times of maturity and resistance to drought and frost. The initial breeding material were usually wild populations (Charmet et. al., 1996) with high variability and adaptability. These characteristics lend themselves for selection of superior genotypes. But breeding for some important agronomic traits may influence others. This relationship between traits …
Cattle Production From Native Pastures In The Semi-Humid Grasslands Of Uganda, S. Okello, Elly N. Sabiiti
Cattle Production From Native Pastures In The Semi-Humid Grasslands Of Uganda, S. Okello, Elly N. Sabiiti
IGC Proceedings (1977-2023)
The cattle population of Uganda, estimated at 6 million, consists of more than 95% indigenous stock, raised on the semi-arid and semi-humid grasslands that make up 48% of the total land area and which supply over 85% of the marketed milk and meat. Native grassland pastures, which vary seasonal in quantity and quality due to rainfall and temperature variations, are the sole feed resource for cattle (Mbuza et al., 1992). This study examined the effects of seasonal herbage mass (HM), dietary crude protein (CPd), detergent lignin (ADLd) and digestibility (DiG) on body condition scores of …
The Seasonal Botanical Composition, Calcium And Phosphorus Content Of Kikuyu Oversown With Ryegrass And Clover, Philip R. Botha, Robin Meeske, Hennie A. Snyman
The Seasonal Botanical Composition, Calcium And Phosphorus Content Of Kikuyu Oversown With Ryegrass And Clover, Philip R. Botha, Robin Meeske, Hennie A. Snyman
IGC Proceedings (1977-2023)
Kikuyu (Pennisetum clandestinum) is one of the major grasses used for summer and autumn grazing in the Southern Cape coast area of South Africa. Annual ryegrass (Lolium multiflorum spp.), perennial white (Trifolium repens) and red clover (Trifolium pratense) can be incorporated into an existing kikuyu stand to improve pasture quality and spring production. The aim of this study was to determine the persistence of these species and effects on the calcium and phosphorus content of kikuyu (K), kikuyu oversown with annual ryegrass (KR), kikuyu oversown with a mixture of perennial ryegrass (L. …
Variability In Quantity And Composition Of Water Soluble Carbohydrates Among Irish Accessions And European Varieties Of Perennial Ryegrass, S. Mcgrath, S. Barth, A. Frohlich, M. Francioso, S. A. Lamorte, T. R. Hodkinson
Variability In Quantity And Composition Of Water Soluble Carbohydrates Among Irish Accessions And European Varieties Of Perennial Ryegrass, S. Mcgrath, S. Barth, A. Frohlich, M. Francioso, S. A. Lamorte, T. R. Hodkinson
IGC Proceedings (1977-2023)
The objective of this study was to identify perennial ryegrass accessions displaying high fructose and glucose contents and an improved ratio between fructose and glucose fractions across different time points throughout the year. Fructose and glucose are the main constituents of the water soluble carbohydrate (WSC) fraction in perennial ryegrass. For animal nutrition the amount of WSC is crucial as it is the primary energy source available to metabolise the intake of plant protein. The ratio between fructose and glucose fractions is important since fructosan chains, which are an excellent energy source for ruminants, are built from fructose. Furthermore the …
Phenotype X Herbage Allowance Interactions In Reproduction Of First Calf Heifers Grazing Semiarid Rangeland, J. W. Holloway, B. G. Warrington, M. K. Owens
Phenotype X Herbage Allowance Interactions In Reproduction Of First Calf Heifers Grazing Semiarid Rangeland, J. W. Holloway, B. G. Warrington, M. K. Owens
IGC Proceedings (1977-2023)
Cattle are differentially adapted to nutritional environments. The most sensitive measure of adaptation is reproduction of first-calf heifers. We studied the role of maturation rate and milk production on reproductive performance of first-calf heifers allowed different levels of herbage in semiarid rangeland.
The Impact Of The Level Of Feed-On-Offer Available To Merino Ewes During Winter-Spring On The Wool Production Of Their Progeny As Adults, Chris Oldham, M. Ferguson, B. Paganoni, A. Thompson, G. Kearney, M. A. Van Burgel
The Impact Of The Level Of Feed-On-Offer Available To Merino Ewes During Winter-Spring On The Wool Production Of Their Progeny As Adults, Chris Oldham, M. Ferguson, B. Paganoni, A. Thompson, G. Kearney, M. A. Van Burgel
IGC Proceedings (1977-2023)
New opportunities for developing optimum ewe management systems, based on achieving liveweight and body condition score (CS) targets at critical stages of the reproductive cycle, have emerged from the acceptance that nutrition during pregnancy can have substantial impacts on the lifetime wool performance of the progeny (Kelly et al,. 1996). However, most studies of the impacts of nutrition on foetal growth and development tended to focus on late pregnancy and have also only considered extreme nutritional regimes often outside the boundaries of commercial reality. Hence, the Lifetime Wool team (Thompson & Oldham, 2004) conducted dose-response experiments to determine the …
Effects Of Forage Chicory (Cichorium Intybus) On Farmed Deer Growth And Internal Parasitism, S. O. Hoskin, P. R. Wilson, W. E. Pomroy, T. N. Barry
Effects Of Forage Chicory (Cichorium Intybus) On Farmed Deer Growth And Internal Parasitism, S. O. Hoskin, P. R. Wilson, W. E. Pomroy, T. N. Barry
IGC Proceedings (1977-2023)
Internal parasitism (particularly lungworm - Dictyocaulus sp) significantly limits post-weaning growth of deer. Endoparasite control using anthelmintics may be unsustainable, due to the increasing risk of anthelmintic resistance and the risk or perception of chemical residues in animal products. Chicory has a high feeding value and contains sesquiterpene lactones and low levels of condensed tannins, both with anti-parasitic activity (Molan et al., 2003). Grazing chicory during autumn may reduce the requirement for anthelmintic treatment of young deer compared with grazing ryegrass-based pasture (Hoskin et al., 1999). The objective of this study was to investigate the effect of withholding …
Gene Discovery And Molecular Dissection Of Lignin Biosynthesis In Perennial Ryegrass (Lolium Perenne), A. Lidgett, M. Emmerling, R. Heath, R. Mcinnes, D. Lynch, A. Bartkowski, K. Fulgueras, T. Sawbridge, E. K. Ong, K. F. Smith, A. Mouradov, G. C. Spangenberg
Gene Discovery And Molecular Dissection Of Lignin Biosynthesis In Perennial Ryegrass (Lolium Perenne), A. Lidgett, M. Emmerling, R. Heath, R. Mcinnes, D. Lynch, A. Bartkowski, K. Fulgueras, T. Sawbridge, E. K. Ong, K. F. Smith, A. Mouradov, G. C. Spangenberg
IGC Proceedings (1977-2023)
Lignification of plant cell walls has been identified as a major factor limiting forage digestibility. It limits the amount of digestible energy available to livestock, resulting in an incomplete utilisation of cellulose and hemicellulose by ruminant animals. Modification of the lignin profile of ryegrasses (Lolium spp.) and fescues (Festuca spp.) is undertaken through modulating the expression of genes encoding enzymes involved in the biosynthesis of monolignols.
Foliar Expression Of Candidate Genes Involved In Condensed Tannin Biosynthesis In White Clover (Trifolium Repens), Stephen N. Panter, J. Simmonds, A. Winkworth, A. Mouradov, G. C. Spangenberg
Foliar Expression Of Candidate Genes Involved In Condensed Tannin Biosynthesis In White Clover (Trifolium Repens), Stephen N. Panter, J. Simmonds, A. Winkworth, A. Mouradov, G. C. Spangenberg
IGC Proceedings (1977-2023)
Bloat disease in cattle and sheep is caused by the rapid microbial degradation of protein-rich fodder in the rumen. This leads to the production of protein foams that trap gases, causing bloat, a condition that is often fatal to livestock and costly to farmers. Condensed tannins (CTs) are phenolic polymers produced by the phenylpropanoid pathway of plants (Figure 1). CTs bind to proteins under acidic to neutral conditions, such as those present in the rumen, slowing their breakdown. A diet with a CT content of between 2% and 4% by dry weight, which is provided by some pasture legumes (e.g. …
Screening Of Perennial Grasses And A Mutant Maize Collection By Fourier-Transformed Infrared (Ftir) Spectroscopy For Improved Biofuel Traits, S. C. Thain, P. Morris, S. Hawkins, C. Morris, I. S. Donnison
Screening Of Perennial Grasses And A Mutant Maize Collection By Fourier-Transformed Infrared (Ftir) Spectroscopy For Improved Biofuel Traits, S. C. Thain, P. Morris, S. Hawkins, C. Morris, I. S. Donnison
IGC Proceedings (1977-2023)
Currently the potential of biomass crops, including grasses, is limited because most species have not been bred for this purpose. However traits such as lignification, phenolic cross-linking and carbohydrate accessibility, which are also important for nutritive quality in forage grasses, can affect potential biofuel quality in applications such as combustion, fast-pyrolysis or fermentation. A collection of Lolium and Festuca species known to exhibit a range of lignin, cell wall phenolic and carbohydrate concentrations have been used to test optimum characteristics for biofuel processing. This collection formed a “calibration” set for subsequent high through-put FTIR chemical screening of additional plant lines: …
Nutritive Value Of Alopecurus Pratensis, Festuca Rubra, Arrhenatherum Elatius And Lolium Perenne Grown In The South Of Belgium, A. Nivyobizi, A. G. Deswysen, D. Dehareng, A. Peeters, Y. Larondelle
Nutritive Value Of Alopecurus Pratensis, Festuca Rubra, Arrhenatherum Elatius And Lolium Perenne Grown In The South Of Belgium, A. Nivyobizi, A. G. Deswysen, D. Dehareng, A. Peeters, Y. Larondelle
IGC Proceedings (1977-2023)
In Europe, recent strategies have aimed at encouraging farmers to use production techniques more efficient in preserving the environment and maintaining natural areas. Those strategies have encouraged the use of secondary grass species in forage production systems. However, the nutritive value of those grasses is not well known. Therefore, the aim of the present study was to evaluate the energy and nitrogen values of Alopecurus pratensis (ALPR), Festuca rubra (FERU) and Arrhenatherum elatius (AREL) under moderate rates of nitrogen (N) application (60 kg N/ha per cut) and a hay-cutting regime (2 cuts/year: 25 May and 9 July). Lolium perenne cv. …
Towards A Comparative Map Of White Clover (Trifolium Repens) And Barrel Medic (Medicago Truncatula), M. Febrer, G. Jenkins, M. T. Abberton, D. Milbourne
Towards A Comparative Map Of White Clover (Trifolium Repens) And Barrel Medic (Medicago Truncatula), M. Febrer, G. Jenkins, M. T. Abberton, D. Milbourne
IGC Proceedings (1977-2023)
Grassland is of pivotal importance to the Irish agricultural industry. This dependence of grass is reflected in the large proportion of land area under grass, approx. 80% of the total land acreage in Ireland. The presence of white clover (Trifolium repens L.) in grassland significantly improves the overall nutritional value of the forage by increasing the relative amounts of nitrogen present. Genetic improvement of white clover through breeding of varieties should increase the productivity of grasslands. Advances in plant biotechnology offer the possibility of developing tools that will radically enhance our ability to breed improved plant varieties. The objective …
Gene Discovery And Molecular Dissection Of Fructan Metabolism In Perennial Ryegrass (Lolium Perenne), J. Chalmers, A. Lidgett, X. Johnson, K. Terdich, N. Cummings, Y. Y. Cao, K. Fulgueras, M. Emmerling, T. Sawbridge, E. K. Ong, A. Mouradov, G. C. Spangenberg
Gene Discovery And Molecular Dissection Of Fructan Metabolism In Perennial Ryegrass (Lolium Perenne), J. Chalmers, A. Lidgett, X. Johnson, K. Terdich, N. Cummings, Y. Y. Cao, K. Fulgueras, M. Emmerling, T. Sawbridge, E. K. Ong, A. Mouradov, G. C. Spangenberg
IGC Proceedings (1977-2023)
Fructans are the main soluble carbohydrate stored in up to a third of the vegetation of the earth, including the economically important temperate grasses. Fructans are polymers of fructose attached to a sucrose precursor. Perennial ryegrass (L. perenne L.) accumulates fructans of the inulin series, inulin neoseries and levan neoseries. Four enzymes are required to produce fructans of this profile: 1-SST (sucrose:sucrose 1- fructosyltransferase), 1-FFT (fructan:fructan 1-fructosyltransferase), 6G-FFT (6-glucose fructosyltransferase) and 6-FFT (fructan:fructan 6-fructosyltransferase) or 6-SFT (sucrose:fructan 6-fructosyltransferase) (Figure 1). Fructan biosynthetic enzymes have evolved from invertases and thus it is argued that fructan metabolism is an extension …