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Articles 541 - 570 of 3654
Full-Text Articles in Entire DC Network
Co2 Enrichment And Temperature Effects On Productivity Of Field-Grown Phalaris And Subterranean Clover, J M. Lilley, T P. Bolger, R M. Gifford
Co2 Enrichment And Temperature Effects On Productivity Of Field-Grown Phalaris And Subterranean Clover, J M. Lilley, T P. Bolger, R M. Gifford
IGC Proceedings (1977-2023)
Pure and mixed swards of Phalaris aquatica and Trifolium subterraneum were exposed to cool (ambient) and warm (cool +3oC) temperatures, at both 380 and 690 ppm CO2 concentrations in field temperature gradient tunnels for 5 months. In general, clover and the mixture had similar forage productivity in each treatment, while phalaris was less productive. Elevated CO2 increased clover production 40% in the monoculture and the mixture. Higher temperatures reduced clover regrowth at ambient CO2 and reduced the response to elevated CO2 in the monoculture but not in the mixture. In contrast, phalaris regrowth in the monoculture was not increased by …
Elevated Co2 And Temperature Effects On Paspalum And Arachis Forages, K J. Boote, F B. Fritschi
Elevated Co2 And Temperature Effects On Paspalum And Arachis Forages, K J. Boote, F B. Fritschi
IGC Proceedings (1977-2023)
Long-term effects of elevated carbon dioxide (CO2) and elevated temperature on growth processes of bahiagrass (Paspalum notatum Flugge) and rhizoma peanut (Arachis glabrata Benth.) were evaluated. Forages were established and grown in 27-m long temperature-gradient greenhouses constructed over a natural field soil. Treatments were two CO2 levels, 350 or 700 vpm CO2, and four temperature sectors (0, 1.5, 3.0, and 4.5 °C above ambient). Shoot emergence, ground cover, leaf and canopy assimilation, rate of leaf appearance, and dry matter accumulation were measured. Increasing temperature accelerated plant establishment and increased early plant dry matter accumulation, leaf area, and leaf appearance rate. …
Silage Production Possibility Of Sorghum Vulgare, S. Sudanense And Their Hybrid On The Second Crop Conditions Of Tokat-Turkey, U Büyükburç, Y Karadag, M Yildirim
Silage Production Possibility Of Sorghum Vulgare, S. Sudanense And Their Hybrid On The Second Crop Conditions Of Tokat-Turkey, U Büyükburç, Y Karadag, M Yildirim
IGC Proceedings (1977-2023)
The objective of the work was to determine biological characters of some fodder grasses (Sorghum, Sudangrass and their hybrid) under second crop condition of Tokat-Turkey with different N levels. The grasses were sown on 20-21 July 1994-1995 after harvesting the main crop of wheat, harvested at the end of October 28-29. Application of 40 - 80 - 120 kg/ha N fertilizer increased the plant height, fresh fodder, DM yield, CP contents in all plants. The hybrid showed the highest fresh and dry fodder yield (100.7 - 23.4 Mg/ha) at the high level of N. Leaf rate declined with use of …
Degradability And Fermentescibility According To Fiber Content In Low Quality Forages, A Dieng, A Buldgen, Ph Lecomte, K G. Toussaint
Degradability And Fermentescibility According To Fiber Content In Low Quality Forages, A Dieng, A Buldgen, Ph Lecomte, K G. Toussaint
IGC Proceedings (1977-2023)
The nylon bag technique and the gas-test method were compared with 6 different roughages representing a wide range of fiber contents in samples collected in the Senegalese Groundnut Basin. The results showed high correlation coefficients and low residual standard errors between the chemical composition of the roughages (mainly the acid detergent fiber fraction) and their degradability or fermentescibility. Reliable relationships between the two methods were also identified.
A Comparison Of Preservation Methods Of Roughages From Grassland In Poland, J Zastawny, B Paluch, H Jankowski-Huglejt
A Comparison Of Preservation Methods Of Roughages From Grassland In Poland, J Zastawny, B Paluch, H Jankowski-Huglejt
IGC Proceedings (1977-2023)
The objective of this study was to determine whether the preservation method has an influence on the nutritive value of roughages obtained from grasslands. The silage made in clamps and in big cylindrical bales were compared. During chemical studies, dry matter, crude protein, crude fiber, crude ash, nitrogen free extracts and fat level were determined. The digestible energy of each feed was calculated. The content of particular acids (lactic, acetic and butyric) in the mass of silage was determined. The silages were tested by feeding to ruminants. The obtained results show that the quality of both silages was good. The …
Nutritive Value Of Guineagrass Cultivars In The Winter As Influenced By Nitrogen Fertilization, N.F G. Rethman, W.A J. Steenekamp
Nutritive Value Of Guineagrass Cultivars In The Winter As Influenced By Nitrogen Fertilization, N.F G. Rethman, W.A J. Steenekamp
IGC Proceedings (1977-2023)
The monitoring of yield, structure and nutritive value of four Panicum maximum (Guineagrass) cultivars, utilized as standing hay in the winter, yielded valuable data on the relative importance of nitrogen fertilization and cultivar. While nitrogen had a strong influence on yield and crude protein content it was the differences between cultivars, with respect to soil adaptation and structure, which played a dominant role. It is recommended that future research place particular emphasis on the adaptation of cultivars and genotype differences in structure.
Chromolaena Odorata: A Multipurpose Shrub, S O. Apori
Chromolaena Odorata: A Multipurpose Shrub, S O. Apori
IGC Proceedings (1977-2023)
Chromolaena odorata plant has been classified as a weed. A survey in farming communities in Ghana indicated that the plant is used to reduce fallowing period; improve soil fertility, as medicinal plant; as insect and rodent repellent for temporal storage of maize; and preservation of corpse for about 48 hours in rural Ghana. Studies on foliage of Chromolaena odorata regrowth at 4, 6, 8, 10 and 12 weeks showed that the leaves had crude protein content above 19%, average leaf to stem ratio of 2.1:1, and stem to leaf protein concentration ratio of 0.49. In-sacco degradability rate of dry matter, …
Black Locust Effects On Forage Yield And Nutritive Quality Produced On Reclaimed Mined Land, D C. Ditsch, M Collins, J H. Grove
Black Locust Effects On Forage Yield And Nutritive Quality Produced On Reclaimed Mined Land, D C. Ditsch, M Collins, J H. Grove
IGC Proceedings (1977-2023)
Black locust (Robinia pseudoacacia L.) is a rapidly growing, leguminous tree species often used to stabilize disturbed sites. The objectives of this study were to measure the effect of black locust populations on understory forage production and livestock nutritive quality on reclaimed surface mined land. In two out of three years, forage dry matter yields harvested under a population of 1368 trees ha-1 were not different than the clear cut treatment (all trees removed). Forage dry matter production was significantly reduced at populations of 2736 and 4145 trees ha-1 due to slow and limited regrowth following harvest. Forage nutritive …
Coquia: An Operation For Forage Production, Manual Anaya-Garduno
Coquia: An Operation For Forage Production, Manual Anaya-Garduno
IGC Proceedings (1977-2023)
The objective of this study was to show the potential of Coquia (Kochia scoparia L. Schrad var. esmeralda) as a good ooption for forage production in arid and semiarid zones of Mexico. This plant is drought resistant and it grows well in eroded soils. It can be a good complement in the ration of different animal species (bovines, ovines, caprines, rabbits and equines).
Rhizobial And Nutritional Responses Of Desmanthus Clay Soils Of Queensland, N J. Brandon, R A. Date, R M. Jones, R L. Clem, G A. Bahnisch, P R. Spies, A Becerra, B A. Robertson, T.W G. Graham
Rhizobial And Nutritional Responses Of Desmanthus Clay Soils Of Queensland, N J. Brandon, R A. Date, R M. Jones, R L. Clem, G A. Bahnisch, P R. Spies, A Becerra, B A. Robertson, T.W G. Graham
IGC Proceedings (1977-2023)
The objective of these studies was to determine the reasons for chlorosis of desmanthus observed at some sites in southeast Queensland. Inoculation with Rhizobium increased growth of desmanthus in 2 of 4 soils in the field and 4 of 8 soils in pots. Greatest responses occurred in soils with few or no effective native Rhizobium. Most soils however, contained native strains that were effective. Omission of sulphur significantly reduced dry weight of desmanthus grown in pots in 5 of 7 soils by 30-51% relative to plants supplied with all nutrients. Omission of P and Mo resulted in similar yield reductions …
Phosphorus Requirements In Legumes: Calibration Of A Rapid And Simple Tissue Test, A Moron
Phosphorus Requirements In Legumes: Calibration Of A Rapid And Simple Tissue Test, A Moron
IGC Proceedings (1977-2023)
The objective of this research was to adjust and calibrate a phosphorus (P) tissue test to diagnose in a simple and rapid manner the nutritional status of commonly used legumes in Uruguay. Field experiments conducted during 1993-94 with four legumes, showed a significant yield response to increasing P fertilizer rates. A colorimetric sap analysis was used to determine P status in legumes. A strong relationship was found between P sap analysis and relative yields. A critical level of 90-100 μg P/ml in sap to attain 90% of the maximum yield was obtained.
Evaluation Of Different Nitrogen Sources On The Production And Chemical Properties Of C4-Sub-Tropic Pastures, J F. Reckling, G.H J. Kruger
Evaluation Of Different Nitrogen Sources On The Production And Chemical Properties Of C4-Sub-Tropic Pastures, J F. Reckling, G.H J. Kruger
IGC Proceedings (1977-2023)
Digitaria eriantha fertilised with limestone ammonium nitrate (LAN 28 % N), although not statistically significant, resulted in higher dry matter production in comparison to those plants fertilised with urea (U 46% N). Significant lower (P<0.05) soil calcium levels were found in plots fertilised with LAN. Plants fertilised with urea had double the amount of Aspartic and Glutamic acid, indicating that urea did not convert to NO3 -, but was taken up as ammonium.
Effect Of Nitrogen And Potash Fertilization On Dry Matter Yield And Mineral Composition Of Pangolagrass, J B. Andrade, C L. Justo, J.L. V. Coutinho, R M. Peres, E Ferrari Junior, V T. Paulino, W Henrique, J C. Werner, H B. Mattos
Effect Of Nitrogen And Potash Fertilization On Dry Matter Yield And Mineral Composition Of Pangolagrass, J B. Andrade, C L. Justo, J.L. V. Coutinho, R M. Peres, E Ferrari Junior, V T. Paulino, W Henrique, J C. Werner, H B. Mattos
IGC Proceedings (1977-2023)
The effect of nitrogen and potash fertilizations on dry matter and protein yields and chemical composition of pangolagrass (D. decumbens Stent.) was studied in a randomized block design with four replications using a 2 x 2 factorial arrangement. Nitrogen and potash were applied after each cut as an equivalent to 3 and 2% of dry matter (65°C) yield, respectively. There were great increases in dry matter and protein yields when nitrogen alone or combined with potash was used. Potash fertilization alone had no effect on the variables described above. Nitrogen fertilization improved forage pangolagrass composition, being particularly effective on crude …
Effectivity Of Arbuscular Mycorrhizas In Sustainable Grassland Agriculture Following Conversion From Intensive Management, W R. Eason, J Scullion, E P. Scott
Effectivity Of Arbuscular Mycorrhizas In Sustainable Grassland Agriculture Following Conversion From Intensive Management, W R. Eason, J Scullion, E P. Scott
IGC Proceedings (1977-2023)
With increased interest in sustainable agriculture, attention has focused on the role of arbuscular mycorrhiza (AM) in the productivity of agricultural systems. AM spores were taken from grassland and grass-arable systems with either a history of high-input, conventional, or low-input, organic management, and used as a source of inoculum in host plants (Allium amelioprasum, Trifolium repens and Lolium perenne). Spores from organic management systems produced a greater yield response than those from conventional systems. Where various spore inoculum produced differences in host growth responses, it was observed that the infected root of these host plants also produced similar …
Reserving Pastures In Communal Grasslands By Agropastoralists Of Tanzania, M L. Kusekwa, A J. Mwilawa, J.K K. Msechu
Reserving Pastures In Communal Grasslands By Agropastoralists Of Tanzania, M L. Kusekwa, A J. Mwilawa, J.K K. Msechu
IGC Proceedings (1977-2023)
Studies were conducted in “Maasai” and “Gogo” tribal communities to gain understanding of traditional management of reserved pastures. Survey techniques were used and forage production and chemical composition were estimated. Household heads were invariably old men who had no formal education. Household size averaged 14 and 11, in Maasai and Gogo tribes respectively. Most reserved pastures were privately owned. Over 90% of pastoralists preferred individual ownership of reserved grazing. Herbage production was 2510 kg DM/ha in Maasai and 3680 kg DM/ha in Gogo locations. Pastures and low protein content (5.1-6.5% CP). Constraints to reserve grazing strategies were land and water …
Influence Of Drying Method And Temperature On Ruminal Degradable Protein Of Switchgrass, D E. Farnham, K J. Moore, J R. George
Influence Of Drying Method And Temperature On Ruminal Degradable Protein Of Switchgrass, D E. Farnham, K J. Moore, J R. George
IGC Proceedings (1977-2023)
The nutritional value of herbage protein fed to ruminant livestock can be influenced greatly by the extent to which it is degraded in the rumen. This study was conducted to determine if drying method and temperature alters measurements of in situ ruminal escape protein (EP) of switchgrass herbage. Switchgrass harvested at the pre-heading stage was either air dried, freeze dried, or oven dried at 38, 49, 60, or 710 C. Samples from each of the six drying treatments were digested in situ in Dacron bags for 4, 8, 12, or 16 h. Drying treatment had a significant impact on EP …
Production, Utilization And Quality Of Irrigated Grasses And Legumes In The Mountain West Usa Under Mob Stocking Or Clipping, Jennifer W. Macadam, Brody Maughan, Xin Dai
Production, Utilization And Quality Of Irrigated Grasses And Legumes In The Mountain West Usa Under Mob Stocking Or Clipping, Jennifer W. Macadam, Brody Maughan, Xin Dai
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Feed is the most costly input for US ruminant livestock production systems, and increasing the utilization efficiency of irrigated forage systems can improve system profitability. This study assessed the production, utilization and quality of 22 intensively managed perennial grasses and legumes. Forages were cultivated as monocultures under irrigation and subjected to similarly intense clipping or mob stocking for two years at six-week intervals between May and September. Grasses and legumes were randomly assigned to 22 adjacent 1.5-m-wide by 9-m-long subplots within each whole plot, and pairs of whole plots were randomly assigned to grazing or clipping management. Seven grasses did …
Surface Water Quality Assessment Of Mingo Creek County Park: The Impacts Of Extractive Industries, Mikayla J. Bayto
Surface Water Quality Assessment Of Mingo Creek County Park: The Impacts Of Extractive Industries, Mikayla J. Bayto
Electronic Theses and Dissertations
Historical and current extraction operations and infrastructure, including natural gas pipelines, conventional and unconventional oil and natural gas drilling, longwall coal mining, and strip coal mining, occur throughout the Mingo Creek watershed of Washington County, Pennsylvania, including Mingo Creek County Park. Mingo Creek and several associated tributaries flow through Mingo Creek County Park, eventually discharging into the Monongahela River. An independent water quality study was conducted from June 2020 through July 2023 in Mingo Creek County Park to determine if historical and current extraction activities impact Mingo Creek and its associated tributaries. Weekly sampling of Mingo Creek and associated tributaries …
Reactivity Of Adsorbed Trace Metals At Metal (Oxyhydr)Oxide Surfaces As Probed With Isotope Exchange, Greg Ledingham
Reactivity Of Adsorbed Trace Metals At Metal (Oxyhydr)Oxide Surfaces As Probed With Isotope Exchange, Greg Ledingham
Arts & Sciences Graduate Student Theses and Dissertations
Metal (oxyhydr)oxide surfaces regulate the accessibility of trace metals in soils and aquatic systems. Up to half of the trace metals in urban environments, river systems, and contaminated soils are associated with mineral surfaces yet this pool often remains bioaccessible. Past studies of adsorption-desorption suggest that macroscopic rates of adsorption at mineral surfaces are likely mass transfer-limited and show biphasic rates, with a fast-adsorbing fraction equilibrating in seconds to minutes and a slower-adsorbing pool binding over a timescale of hours to days. In addition, adsorption-desorption hysteresis has been observed for some metals after aging at metal (oxyhydr)oxide surfaces, indicating that …
Pathology And Osteological Observations Of Early Pliocene Rhinoceros, Teleoceras Aepysoma (Perissodactyla, Rhinocerotidae) From Gray Fossil Site, Tennessee, Thomas Scaife
Electronic Theses and Dissertations
Rhinoceroses were an important part of North America’s Paleogene and Neogene ecosystems, with Teleoceras aepysoma being one of the last representatives of this family. Specimens of T. aepysoma from the Gray Fossil Site (GFS) possess distinct/peculiar pathologies: including a pair of fused ribs and ankylosed phalanges. A qualitative description of the pathologies in the GFS T. aepysoma, including new material, was conducted to accurately identify pathologies and make interpretations about the life history of the GFS rhinos. Analysis suggests that rheumatoid arthritis is common in the lower limb bones of GFS rhinos. Additionally, the rib and toe pathologies are more …
Influence Of Low-Level Condensed Tannins Concentrations In Temperate Forages On Sheep Performace, F Montossi, F Liu, J Hodgson, S T. Morris, T N. Barry, D F. Risso
Influence Of Low-Level Condensed Tannins Concentrations In Temperate Forages On Sheep Performace, F Montossi, F Liu, J Hodgson, S T. Morris, T N. Barry, D F. Risso
IGC Proceedings (1977-2023)
Results from a series of six comparative lamb grazing trials with temperate forages are summarised, and compared with results from the literature. Condensed tannin (CT) concentrations in the diet ranged from 0.12% to 0.47% on a dry matter (DM) basis. Values were generally similar for Yorkshire fog (Holcus lanatus), perennial ryegrass (Lolium perenne) and annual ryegrass (L. multiflorum), each grown with white clover (Trifolium repens), in similar circumstances. Concentrations for tall fescue (Festuca arundinacea)/white clover pastures were relatively low, but may have been artefacts. Drenching with polyethylene glycol (PEG) to bind …
Tannin Contents Of Some Indigenous Browse Plants Of Botswana, A A. Aganga, C M. Tsopito, K M. Morake
Tannin Contents Of Some Indigenous Browse Plants Of Botswana, A A. Aganga, C M. Tsopito, K M. Morake
IGC Proceedings (1977-2023)
A study was carried out to evaluate the tannin content and crude protein degradation of leaves and twigs from indigenous browsable trees which provide feed for grazing livestock on natural rangelands of Botswana. These browses include the families Leguminosae (Acacias), Capparidaceae (Boscias), Combretaceae (Combretum) and Tiliaceae (Grewias). These were found to be of good nutritive value, with the leaves having a high content of crude protein (9 - 16%) and a wide range of dry matter digestibility (37 - 69.82%). The correlation between crude protein disappearance and tannin content was found to be negative (-0.582) and significant (P<0.05).
Effect Of Tannin In Animal Diet On Nitrification Rate Of Pasture Soil Under Dung Patches, J R. Crush
Effect Of Tannin In Animal Diet On Nitrification Rate Of Pasture Soil Under Dung Patches, J R. Crush
IGC Proceedings (1977-2023)
The rate of formation of nitrate and ammonium in the soil under dung patches was compared for dung from animals fed either ryegrass (Lolium perenne)/white clover (Trifolium repens) or ryegrass/Lotus pedunculatus forage. Tannin derived from the Lotus did not inhibit ammonification in the soil under dung but nitrate formation was strongly inhibited. The results support the theory that polyphenolics may bind to nitrite in acid soils and cause immobilisation of mineral nitrogen. Apart from their effect of reducing the proportion of dietary nitrogen excreted in urine, tannins in animal diets may make a further contribution to …
Condensed Tannins In Tropical Legumes: Concentration, Astringency And Effects On The Nutrition Of Ruminants, R Barahona, C E. Lascano, R C. Cochran, J L. Morrill, E C. Titgemeyer
Condensed Tannins In Tropical Legumes: Concentration, Astringency And Effects On The Nutrition Of Ruminants, R Barahona, C E. Lascano, R C. Cochran, J L. Morrill, E C. Titgemeyer
IGC Proceedings (1977-2023)
A feeding trial was carried out to determine the effect of extractable condensed tannins (ECT) concentration and tannin astringency in tropical legumes on nitrogen (N) digestion by sheep. Test legumes were Desmodium ovalifolium (Do) and Flemingia macrophylla (Fm) which had similar concentrations of Extractable CT (9% DM) but tannins with different degree of astringency (Do, 0.6 and Fm, 0.3 g protein bound/g of ECT). Chopped sun-dried forage of each legume was sprayed with either water (control) or polyethylene glycol (PEG, 3.5% DM) to reduce ECT and fed to 8 sheep with ruminal and duodenal canulas arranged in a replicated 4 …
Effect Of Condensed Tannin In Lotus Corniculatus And Lotus Pedunculatus On Digestion Of Rubisco In The Rumen, W C. Mcnabb, R J. Aerts, A Brand, J S. Peters, Y L. Foo, G C. Waghorn
Effect Of Condensed Tannin In Lotus Corniculatus And Lotus Pedunculatus On Digestion Of Rubisco In The Rumen, W C. Mcnabb, R J. Aerts, A Brand, J S. Peters, Y L. Foo, G C. Waghorn
IGC Proceedings (1977-2023)
The in vitro precipitation of ribulose-1,5-bisphosphate carboxylase (Rubisco) by condensed tannin (CT) extracted from Lotus corniculatus and Lotus pedunculatus and the effect of these CT on the in vitro rumen degradation of Rubisco was used to compare the reactivity of these CT. The chemical structure of CT from Lotus corniculatus was homogenous with epicatechin stereochemistry and mostly procyanidin units. The CT from Lotus pedunculatus was heterogenous with mostly prodelphinidin units. The amount of CT required to precipitate all the Rubisco when total soluble leaf protein was incubated with CT from Lotus corniculatus and Lotus pedunculatus was similar. Although CT from …
Nitrogen And Fiber Digestion In Sheep Fed Fresh-Frozen And Field-Dried High And Low Tannin Sericea Lespedeza, T H. Terrill, W R. Windham, C S. Hoveland, H E. Amos, B Kouakou, S Gelaye
Nitrogen And Fiber Digestion In Sheep Fed Fresh-Frozen And Field-Dried High And Low Tannin Sericea Lespedeza, T H. Terrill, W R. Windham, C S. Hoveland, H E. Amos, B Kouakou, S Gelaye
IGC Proceedings (1977-2023)
Field-drying reduces extractable condensed tannin (CT) of sericea lespedeza [Lespedeza cuneata (Dum-Cours) G. Don], but effects on specific bound and unbound forms of CT and the relationship to protein and fiber digestion in ruminants are unclear. Intake and digestibility of fresh-frozen and field-dried high- and low-tannin sericea were investigated in a feeding trial with sheep (Ovis spp.). Field-drying had no effect on crude protein (CP) and fiber content of sericea, but shifted CT from extractable to bound forms. Digestion coefficients for CP, neutral detergent fiber (NDF), and acid detergent fiber (ADF) were lower for high-tannin sericea than the low-tannin …
Alteration Of Condensed Tannin Sythesis In Transgenic Forage Legumes, F Paolocci, G Tanner, S Arcioni, F Damiani
Alteration Of Condensed Tannin Sythesis In Transgenic Forage Legumes, F Paolocci, G Tanner, S Arcioni, F Damiani
IGC Proceedings (1977-2023)
The transformation of Lotus corniculatus plants with the maize gene Sn, reorganizes the tissue specificity of condensed tannins accumulation. In particular the transformed plants show an increase of tannin content in roots and a decrease in leaves. Molecular and enzymatic analyses suggest that the transgene can functionally substitute an endogenous unknown gene not expressed in roots and induces its silencing when it is expressed. These findings could have applications for reducing tannin content in unpalatable plants and for cloning genes involved in tannin synthesis.
Differences In Chemical Composition Among Provenances Of Tree Fodder Species In A Subhumid Environment: Relation To Use As Supplements, B H. Dzowela, L Hove, P L. Mafongoya
Differences In Chemical Composition Among Provenances Of Tree Fodder Species In A Subhumid Environment: Relation To Use As Supplements, B H. Dzowela, L Hove, P L. Mafongoya
IGC Proceedings (1977-2023)
Studies were initiated in a subhumid Southern African environment to assess the chemical composition and nutritive value of Acacia angustissima (Mill.) Kuntze, Calliandra calothyrsus Meiss. and Leucaena species. The objective was to determine variability in crude protein (CP) concentration, acid detergent fibre (ADF), neutral detergent fibre (NDF), and soluble and insoluble proanthocyanidins from fodder samples of species, subspecies and provenances. A wide range was found in these parameters. The implications of these chemical composition factors, especially proanthocyanidins, on the use of these browse fodders in livestock feeding systems are discussed.
Nutritional Implications Of Bound Proanthocyanidins, H P.S Makkar, K Becker
Nutritional Implications Of Bound Proanthocyanidins, H P.S Makkar, K Becker
IGC Proceedings (1977-2023)
The correlation between protein binding capacity of proanthocyanidin-rich neutral detergent fiber (NDF) and their proanthocyanidin (PAs) content was very low (r = -0.21; n = 6). These PAs-rich NDF did not affect growth of a tannin-sensitive strain of Clostridium perfringens. A substantial amount of bound PAs (75 to 92 %) disappeared from the NDF in 24 h of fermentation in an in vitro incubation medium containing rumen microbes. Addition of a tannin-binding agent, polyethylene glycol to the incubation medium containing rumen microbes and browses made free of extractable tannins or NDF rich in bound PAs increased the gas production up …
Plant Tannins- Their Role In Forage Legume Quality, J A. Alokan, V A. Aletor
Plant Tannins- Their Role In Forage Legume Quality, J A. Alokan, V A. Aletor
IGC Proceedings (1977-2023)
Forage legumes, especially browse plants, are important in the maintenance and survival of ruminant animals. However many browse species contain high levels of polyphenolic compounds including tannins. The effects of tannins on the quality of forages are reviewed. These include reduction in palatability and intake of feeds, growth rate, digestion of fibre fractions and nitrogen utilization by animals.