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Full-Text Articles in Entire DC Network
Productivity Of Pasture Consisting Of Both Unimproved And Improved Areas In Aso Region Of Kyushu District, C Okamoto, K Kabata, K Tsuji, M Kikuchi
Productivity Of Pasture Consisting Of Both Unimproved And Improved Areas In Aso Region Of Kyushu District, C Okamoto, K Kabata, K Tsuji, M Kikuchi
IGC Proceedings (1977-2023)
Productivity of pasture consisting of both unimproved and improved areas was investigated in terms of conversion efficiency of solar energy into products and nutrient intake of animal. It was shown that animal production is mainly supported by the improved area in spring and late-autumn while the production is supported together by both areas in summer by reasons of increases in productivity of the unimproved area and productive depression in the improved area. CP/DE balance of grazed herbage was close to the requirement ofthe animal in the case where the unimproved area was grazed with the improved area rather than in …
Grassland Productivity In The Indian Himalaya And Performance Of Introduced Temperate Forage Species In Cold And Semi-Arid Environment, J R. Sharma, A N. Ghosh
Grassland Productivity In The Indian Himalaya And Performance Of Introduced Temperate Forage Species In Cold And Semi-Arid Environment, J R. Sharma, A N. Ghosh
IGC Proceedings (1977-2023)
Grasslands in the Himalayan ranges, particularly in the middle altitudes, are over-exploited by both sedentary and nomadic flocks. No systematic studies have been made to assess the productivity and carrying capacity of these grasslands so that suitable improvement measures could be adopted. A study conducted in the Shimla district of Himachal Pradesh (HP) at 2092, 2400 and 2895 meters above mean sea level (amsl) and varying soil conditions, showed that protection alone increased dry matter production between 9 and 188% over a three year period and average production in the third year from lower to higher altitude grasslands was 101.1, …
Nutrient Content Of Saskatchewan Native Range Plants, Zoheir Abouguendia
Nutrient Content Of Saskatchewan Native Range Plants, Zoheir Abouguendia
IGC Proceedings (1977-2023)
This study reports on the nutrient content and digestibility of five cool-season grasses common in the Mixed-Prairie Ecoregion of Saskatchewan, Canada: (1) green needlegrass (Stipa viridula Trin.); (2) needle-and-thread (Stipa comata Trin & Rupr.); (3) western porcupinegrass (Stipa curtiseta (Hitchc.) Backworth); (4) northern wheatgrass (Agropyron dasystachyum (Hook.) Scribn.); and (5) western wheatgrass (Agropyron smithii Rydb.). Plant material was collected monthly and analyzed for invitro organic matter digestibility ( IVOMD), crude protein (CP), P, Ca, ADF and NDF. All species showed similar intra-seasonal pattern in the various parameters studied and no species x month interactions were …
Effect Of Nitrogen On The Reserve Nutrients Of Rhizomes And Their Relation To Shoot Regrowth In Miscanthus Floridulus, Y C. Wang, M L. Lee
Effect Of Nitrogen On The Reserve Nutrients Of Rhizomes And Their Relation To Shoot Regrowth In Miscanthus Floridulus, Y C. Wang, M L. Lee
IGC Proceedings (1977-2023)
A 3-week-treatment of nitrogen dressings and of shoot cuttings were conducted on Miscanthus floridulus before the harvest. The nitrogen dressing increased the fresh weight and dry matter of the plants, but did not increase the plant height and shoot number. The reserved nutrients, especially the sugars and starch in the rhizomes were decreased by the cut treatments. Crude protein in the rhizomes was increased with the nitrogen amounts applied, though the carbohydrates were decreased. The decrease in reserved nutrients caused the growth inhibition of new shoots, and the more the reserved nutrients decreased the more severely was the growth inhibited. …
Sustainability Of Management Practices Of Mountain Pastures In Reunion Island (Indian Ocean), V Blanfort, P Thomas, G Balent, A Michon
Sustainability Of Management Practices Of Mountain Pastures In Reunion Island (Indian Ocean), V Blanfort, P Thomas, G Balent, A Michon
IGC Proceedings (1977-2023)
The grazing systems are an essential component of these volcanic highlands (1000-2000m). Our investigations consist of building up diagnosis tools and decision rules for a sustainable control of these fragile grazed ecosystems composed of native and sown pastures. The use of a systemic approach allows us to analyse the interrelationship between the vegetation dynamic and the agricultural practices through three biological indicators which relate to one hundred paddocks in six cattle farms. Concerning the vegetation dynamics, it seems that some management practices lead to a nonreversable degradation stage. As regards the forage system, the measure of sward-height and estimation of …
Litter Decomposition And Nutrients Release During Decomposition In A Humid Grassland Of Northeastern India, P S. Yadava, N S. Thoudam
Litter Decomposition And Nutrients Release During Decomposition In A Humid Grassland Of Northeastern India, P S. Yadava, N S. Thoudam
IGC Proceedings (1977-2023)
The litter decomposition and nutrient release of two dominant grass species Sporobolus indicus (L) R. Br., Leersia Hexandra SW. and mixed grasses was studies by litter bag technique in the humid grassland ecosystem at Imphal, Northeastern India. On ermination of experiment after 12 months, the shoots decomposed from 97.2 to 100% and the roots from 82.9 to 91.8% of different species. The rate of litter decomposition of shoots were higher than roots. The decomposition constant (K) also varied from species to species. It is positively correlated with soil moisture content during the study period. The initial nitrogen, lignin and lignin …
Nitrogen Cycling In Pasture Grazed By Lactating Dairy Cows, M P. Russelle, L D. Satter, T Dhiman, V R. Kanneganti
Nitrogen Cycling In Pasture Grazed By Lactating Dairy Cows, M P. Russelle, L D. Satter, T Dhiman, V R. Kanneganti
IGC Proceedings (1977-2023)
Increasing use of intensive rotational grazing for livestock production in the USA raises questions about the potential for nitrate-N (NO3- N) leaching losses. In grazing experiments with lactating dairy cows at two sites in the Upper Midwest, we monitored milk production, soil NO3-N concentration, and NO3-N leaching. Dietary supplementation increased milk yield, but there was no measurable impact on NO3-N leaching losses. Leaching volumes and NO3-N losses were small on these silt loam soils, even directly under urine patches. The results suggest that NO3-N leaching is not likely to be a problem on fine-textured soils in the Upper Midwest under …
Triticale As Early Winter Forage For Meat Calves On Sandy Acidic Soils, M Bemhaja, D F. Risso
Triticale As Early Winter Forage For Meat Calves On Sandy Acidic Soils, M Bemhaja, D F. Risso
IGC Proceedings (1977-2023)
The use of triticale as a winter forage, improves animal performance. The objective of this study was to characterize a triticale crop during winter months, in relation to liveweight gain and animal production, under different grazing systems on sandy acidic soils. Three treatments were imposed to weaned calves of 110 kg liveweight average. Continuous grazing at a herbage allowance of 4% liveweight in dry matter (C4), rotational at an herbage allowance of 4% dry matter (R4) and rotational grazing at an herbage allowance of 2. 5% liveweight (R2. 5). Individual calf gain was 585 g/day for C4 and R4 and …
The Nature Of Competition Between Forage Herbs, Perennial Ryegrass, And White Clover Under Organic Farming Conditions, A P. Umrani, D Younie, P R. English
The Nature Of Competition Between Forage Herbs, Perennial Ryegrass, And White Clover Under Organic Farming Conditions, A P. Umrani, D Younie, P R. English
IGC Proceedings (1977-2023)
Chicory and ribwort were sown alone or with perennial ryegrass (PRG), PRG/white clover (WC) or WC at three seed rates (1, 5 and 20 kg/ha) in fields or in the glasshouse in the north-east of Scotland under organic farming conditions during 1995-96. PRG showed strong negative effects on root and shoot development of the herbs, but it increased total herbage production. WC had no marked effect on herb establishment when it was sown without PRG. Density dependent competition in herbs for different seed rates were higher during early establishment when plant count was high. Competition between companion species was higher …
Anatomic And Chemical Traits, And In Vitro Digestibility Of Three Tropical Grasses, S Queiroz, Jose Alberto Gomide, Jose Maria
Anatomic And Chemical Traits, And In Vitro Digestibility Of Three Tropical Grasses, S Queiroz, Jose Alberto Gomide, Jose Maria
IGC Proceedings (1977-2023)
Single linear correlation was established between in vitro dry matter digestibility (IVDMD) and contents of chemical entities as well as proportion of different tissues. Top and bottom leaves were sampled from Jaraguagrass, setariagrass and dwarf elephantgrass. Among the chemical entities, lignin showed better correlation with IVDMD. The proportion of sclerenchyma in the samples of stem and leaf lamina from the top layer and the parenchymall cells in the leaf sheath showed highly significant correlations with the IVDMS NDF content correlated positively with percentage of sclerenchyma, lignified vascular tissues and parenchyma bundle sheath, but negatively with percentage mesophyll and epidermis tissues. …
White Clover Saponins And Their Variation With Shading Or Nitrogen Application Level, K Sugawara, S Ogura, Y Yashima
White Clover Saponins And Their Variation With Shading Or Nitrogen Application Level, K Sugawara, S Ogura, Y Yashima
IGC Proceedings (1977-2023)
Saponins are widely present in leguminous plants. Several kinds of saponins which were different from soybean saponins were identified in white clover (Trifolium repens L.). These white clover saponins were varied in quality and quantity by the change of cultural conditions such as shading or nitrogen application. In particularly, the concentration of saponins in white clover showed tendency to increase under high light intensity and low nitrogen conditions.
Genetic Variability Of Ruminal Starch Degradation Of Corn Harvested At Two Silage Maturities, C Philippeau, M Champion, B Michalet-Doreau
Genetic Variability Of Ruminal Starch Degradation Of Corn Harvested At Two Silage Maturities, C Philippeau, M Champion, B Michalet-Doreau
IGC Proceedings (1977-2023)
This trial was carried out to determine the influence of genotype and maturity stage on ruminal starch degradation of corn harvested at silage maturity. Two types of corn (Zea mays L.), differing in their endosperm texture, flint or dent, were harvested at 30 and 35 % whole plant DM. The degradation rate in the rumen of grains (oven dried at 40°C and ground through a 3-mm screen) was determined by the in situ technique. Mean ruminal starch degradability was 69 %. With maturity, the content of grain in the whole plant increased and ruminal starch degradability decreased (15 points). Starch …
Estimation Of Organic Matter Digestibility And Me Content In Ruminant Feeds From In Vitro Gas Production, H Steingass, K P. Aiple, W Drochner
Estimation Of Organic Matter Digestibility And Me Content In Ruminant Feeds From In Vitro Gas Production, H Steingass, K P. Aiple, W Drochner
IGC Proceedings (1977-2023)
Cumulative gas production from incubation of feedstuffs with rumen liquor or a fresh faecal suspension as inoculum in vitro together with crude nutrient composition can be used to predict organic matter digestibility and metabolizable energy content of ruminant feeds with high accuracy. In this study, prediction equations were derived for roughages using 110 samples with known in vivo digestibility. It can be demonstrated, that the accuracy of prediction of the gas production method is better compared with a pepsin-cellulase procedure and that the use of a faecal suspension as inoculum is a useful alternative when fresh rumen liquor is not …
Pearl Millet: A New Green Fodder Crop In Korea, B H. Choi, K Y. Park, R K. Park
Pearl Millet: A New Green Fodder Crop In Korea, B H. Choi, K Y. Park, R K. Park
IGC Proceedings (1977-2023)
Pearl millet (Pennisetum americanum (L.) Leeke) has been recognized in Korea since 1985, as an important new forage crop of high quality and yield. Suwon 1, pearl millet hybrid, was the best of 20 hybrids examined in Suwon, giving 150t/ha (three cuttings) of green fodder. The pearl millet hybrid was higher in green fodder yield than corn and sorghum/sudan grass hybrids. Leaf area index was 28.8 for three cuttings of pearl millet, with 5.8 for one cutting of maize, and 19.5 for three cuttings of sorghum/sudan grass. Crude protein content was 16.3% for pearl millet, 6 and 5% higher …
Management Of Soil Fertility And Grass-Pine Interactions In Silvopastoral Systems, M Pinto, G Besga, S Virgel, M Rodrigues
Management Of Soil Fertility And Grass-Pine Interactions In Silvopastoral Systems, M Pinto, G Besga, S Virgel, M Rodrigues
IGC Proceedings (1977-2023)
The objective of this work was to study the response of a silvopastoral system (soil fertility, pine and grass growth) to different levels of amendments and fertilizer and to evaluate the interaction between grass and pines. Since 1994, five treatments including two Linz- Donawitz (LD) slag doses, NPK fertilizer and a combination of LD slag and NPK fertilizer were applied every year on a pinewood stand (7-8 year old, and 4*4 average spacing), repeating the treatments in two areas, one, sown with productive grass and legume species, and, the other, maintaining the spontaneus species. Soil pH increased 0.46 units with …
Sward Height Effects On Sward Composition And Animal Performance In Grass/Clover Swards Co-Grazed By Sheep And Goats, M Del Pozo, A Martinez, K Osoro
Sward Height Effects On Sward Composition And Animal Performance In Grass/Clover Swards Co-Grazed By Sheep And Goats, M Del Pozo, A Martinez, K Osoro
IGC Proceedings (1977-2023)
A mixed herd of yearling cashmere bucks plus Gallega and Lacha ewes rearing single lambs continuously grazed lowland perennial ryegrass (Lolium perenne) / white clover (Trifolium repens) swards on two contrasting sward surface heights of 8.3 (High) or 5.9 cm (Low) over a 100-day spring grazing period. Performance results showed that ewes and bucks had respectively an extra 2.6 and 2.0 kg of liveweight gain in the High height treatment while lambs replenished 185 (High) and 198 (Low) g of daily liveweight. Significant increases of live clover occurred in both sward height treatments and that was …
Dry Matter Degradability Of Red Clover (Trifolium Pratense L.) Grown At Different Altitudes Tested With Rumen Fistulated Rams, M Knezevic, J Leto, V Kozumplik, I Pejic
Dry Matter Degradability Of Red Clover (Trifolium Pratense L.) Grown At Different Altitudes Tested With Rumen Fistulated Rams, M Knezevic, J Leto, V Kozumplik, I Pejic
IGC Proceedings (1977-2023)
Among ecological factors altitude can have significant influence on forage dry matter degradability. Red clover is a very important forage species in hilly-mountain regions. Its response in dry matter degradability to different altitudes has been little studied. In this experiment degradability of six red clover cultivars grown at two different altitudes (123 and 650 meters above the sea level) was studied by using rumen fistulated rams (in sacco technique). The clover samples for the degradability determination were taken from the first cut done at the beginning of flowering at each altitude. The experiment was organised as tree factorial CRD. Five …
Mineral Composition Of Perennial Pasture Species Grazed By Dairy Cows In South-Eastern Australia, P T. Doyle, C R. Stockdale, W J. Wales
Mineral Composition Of Perennial Pasture Species Grazed By Dairy Cows In South-Eastern Australia, P T. Doyle, C R. Stockdale, W J. Wales
IGC Proceedings (1977-2023)
On four occasions, the mineral composition of white clover (Trifolium repens L.), perennial ryegrass (Lolium perenne L.) and paspalum (Paspalum dilatatum Poir.), and their morphological components, were monitored as they regrew after defoliation. The four periods coincided with spring, summer, summer/autumn and autumn. White clover generally had more phosphorus, potassium, calcium and magnesium than did the grasses. Ryegrass, on the other hand, had higher concentrations of sodium than either white clover or paspalum. When compared with requirements for lactating dairy cows, it appeared that phosphorus was the major mineral in the pasture on offer with potential to adversely …
Monitoring Kinetics Of Readily Available Fermentable Components By Means Of In-Vitro Gas Production, G Pichard, G Jaurena, M A. Bruni
Monitoring Kinetics Of Readily Available Fermentable Components By Means Of In-Vitro Gas Production, G Pichard, G Jaurena, M A. Bruni
IGC Proceedings (1977-2023)
In vitro rumen incubations were used for measuring substrate disappearance and gas production dynamics. Samples were neutral detergent extracts of alfalfa and orchardgrass with or without added glucose. A logistic multi-pool model was used for describing feed fractions with distinct kinetic parameters, namely pools A, B1, B2 and C that represent fractions of increasing refractoriness. This technique based on gas measurement allowed to monitor early fermentation kinetics of readily available substrates thus overcoming the limitations encountered in traditional in vitro substrate disappearance. Pools A, B1 and B2 showed specific rates near 0.14 , 0.08 and 0.02 and lags of zero, …
Analysis Of Mixed Sward Silage By Near Infrared Reflectance Spectroscopy (Nirs), P Castro, J Castro, A Gonzalez-Arraez, G Flores
Analysis Of Mixed Sward Silage By Near Infrared Reflectance Spectroscopy (Nirs), P Castro, J Castro, A Gonzalez-Arraez, G Flores
IGC Proceedings (1977-2023)
NIR calibration equations were developed to determine crude protein (CP), acid detergent fibre (ADF), organic matter (OM), in vivo organic matter digestibility (OMD) and metabolizable energy (ME) in mixed swards silages. Spectra of 96 in vivo evaluated silages were recorded on a PSCO 6250 monochromator spectrophotometer using NSAS (NIRS Spectral Analysis Software) and converted to NewISI software. NIR calibrations were obtained by modified PLS regression of the 2nd. derivative of SNV and De-trended spectra on laboratory and in vivo data. Determination coefficients (R2) ranged from 0.77 for ME to 0.98 for CP and OM. Highest standard errors of calibration and …
Estimation Of Dry Matter And Lignin Distributions In Maize Internodes By Micro-Surgical Tissue Separation, O Kawamura, N Niijima, M Niimi
Estimation Of Dry Matter And Lignin Distributions In Maize Internodes By Micro-Surgical Tissue Separation, O Kawamura, N Niijima, M Niimi
IGC Proceedings (1977-2023)
The second, 5th and 8th internodes, counting from the lowest internode, taken from the heading, milk-ripe and full-ripe maize (Zea mays L), were dissected into fractions of epidermis (EPI), sclerenchyma (SCL), vascular bundle (VB) and pith parenchyma (PITH). The proportion of dry weight of VB to the total dry weight were smallest (8-13%), followed by EPI (15-22%) and SCL (15-30%) and PITH (43-58%). These values differed entirely from the proportions of area for the fractions on the cross-cut section. The lignin concentration, in the most case, was in the order of; EPI > SCL > VB > PITH. From the bottom toward the …
Herbage Quality At Continuous Grazing With Dairy Cows At Different N-Intakes And Sward Types, K Soegaard, O Aaes
Herbage Quality At Continuous Grazing With Dairy Cows At Different N-Intakes And Sward Types, K Soegaard, O Aaes
IGC Proceedings (1977-2023)
Herbage quality was examined in paddocks continuously grazed by dairy cows fed supplements with low and high N. There were two sward types for each level of supplement, i.e. fertilized perennial ryegrass (Lolium perenne L) and unfertilized perennial ryegrass/white clover (Trifolium repens L) with a mean clover content of 49 % of dry matter. Decreasing N-intake from 307 to 140 g N cow -1 d -1 by feeding low-N supplements had a small influence on herbage quality in spite of the reduced N-output via urine and faeces. Variation in herbage quality was large during the growing season. The fibre concentration …
Characterizing Effective Fiber With Particle Size And Fiber Concentration Interactions, D R. Buckmaster, A J. Heinrichs, R A. Ward, B P. Lammers
Characterizing Effective Fiber With Particle Size And Fiber Concentration Interactions, D R. Buckmaster, A J. Heinrichs, R A. Ward, B P. Lammers
IGC Proceedings (1977-2023)
Both physical form and chemical nature of fiber is important to ruminant animals. A recently developed method for determining particle size distribution was used to characterize typical distributions for forages and total mixed rations (TMR) from the Mid-Atlantic region of the U.S. An effective fiber index (EFI) and modified effective fiber index (MEFI) are proposed which link physical and chemical characteristics. The EFI and MEFI are computed by weighting NDF concentrations by particle size distribution and effectiveness for contribution towards a rumen mat and rumination.
Quality And Nutritive Value Of Alfalfa And Grass Silages With Biological Additives, H Shorko-Sajko, W Bednarski, J Kowalewska-Piontas, J Sajko, K Mlynarczyk
Quality And Nutritive Value Of Alfalfa And Grass Silages With Biological Additives, H Shorko-Sajko, W Bednarski, J Kowalewska-Piontas, J Sajko, K Mlynarczyk
IGC Proceedings (1977-2023)
The present study satisfactorily utilized some food industry byproducts for improving fermentation characteristics, quality and nutritive value of silages. Five kinds of preparations were made: sugar-enzymes based (beet molasses and brewer’s yeast, mycelium of Aspergillus niger, malted barley at 3:3:3:1); enzymes-bacteria based (mycelium of Aspergillus niger, malted barley, acidic whey, fermentation broth and lactic acid bacteria or skim milk powder at 3:0.9:3:0.1); sugar based (molasses and brewer’s yeast at 1:1) and concentrate of lactic acid bacteria only. Untreated or additive-treated first-cut low sugar (60g kg-1DM, 19.4% DM) alfalfa ( Medicago sativa) plus grasses (Phleum pratense and Dactylis glomerata) was …
A Dynamic Model For Changes In Nutritional Value In Grass. An Approach To Modify The Model To A Mixed Ley With Grass And Red Clover, A.-M Gustavsson
A Dynamic Model For Changes In Nutritional Value In Grass. An Approach To Modify The Model To A Mixed Ley With Grass And Red Clover, A.-M Gustavsson
IGC Proceedings (1977-2023)
The objective of this approach was to check the possibility to modify a dynamic model for simultaneous simulation of the above-ground dry matter growth (DM) and concentrations of crude protein CP) and metabolizable energy (ME) in stands of timothy (Phleum pratense L.) to a model for mixed leys with timothy and red clover (Trifolium pratense L.). DM growth is estimated in relation to intercepted radiation, air temperature, soil-water status and tissue-N concentration. CP is estimated in relation to plant uptake of N from soil mineralization, nitrogen fixation and applied fertilizer, and dilution of N during plant growth. ME …
Effect Of Calcium Nutrition On The Formation Of Calcium Oxalate In Kikuyu Grass, J P. Marais, A D. Barnabas, D L. Figenschou
Effect Of Calcium Nutrition On The Formation Of Calcium Oxalate In Kikuyu Grass, J P. Marais, A D. Barnabas, D L. Figenschou
IGC Proceedings (1977-2023)
The objective of this investigation was to study the formation of calcium oxalate crystals in situ in kikuyu grass (Pennisetum clandestinum) and to determine the effect of calcium uptake on the soluble and insoluble oxalate content of the grass. Oxalate crystals were more abundant in high-calcium leaves than in low-calcium leaves. Electron microscopy showed that the oxalate crystals are formed in association with globular electron-dense bodies in the vacuole of certain cells. The calcium content of kikuyu is increased by increasing the calcium level of the growth medium. However, the increased amount of calcium taken up by the …
Selection For High Dry Matter And Nonstructural Carbohydrate Contents In Italian Ryegrass, J P. Marais, M De Figueiredo, D.C W. Goodenough
Selection For High Dry Matter And Nonstructural Carbohydrate Contents In Italian Ryegrass, J P. Marais, M De Figueiredo, D.C W. Goodenough
IGC Proceedings (1977-2023)
The objective of this investigation was to determine whether or not the selection parameters, dry matter and total nonstructural carbohydrate contents, in an Italian ryegrass (Lolium multiflorum) selection trial were linked to other traits affecting nutritive quality. Selected F3 plants had significantly higher dry matter and total nonstructural carbohydrate contents than the commercial control plants tested. Although differences in digestibility in vitro of selected plants and control cultivars were non-significant, the selected plants contained less acid detergent fibre and acid detergent lignin than the controls. Acid detergent fibre and acid detergent lignin, the main anti-quality factors associated with pasture …
Forage Quality Of Klein And Angleton Grasses As Standing Hay In The Dry Tropic, J A. Ortega-S, R Guarneros, J M. Avila, M A. Hussey
Forage Quality Of Klein And Angleton Grasses As Standing Hay In The Dry Tropic, J A. Ortega-S, R Guarneros, J M. Avila, M A. Hussey
IGC Proceedings (1977-2023)
This study was conducted at Aldama Experimental Station of INIFAP, in Aldama, Tamps., Mexico, to determine the quality and nutritive value of angleton (Dichanthium aristatum Poir.) (A) and klein (Panicum coloratum L.) (K) pastures used as standing hay. Pastures were closed to grazing in September to promote herbage accumulation until February when the experiment was initiated. Two 200 kg live weight crossbred steers were set stocked per each replication. Two fistulated steers were used to collect extrusa samples every 16 days during the 83-d experimental period. Average daily gain in K was 1.3 times higher (P<0.01) than in A. Crude protein concentration was similar (P > 0.01) in leaves of …
Rumen Fermentation Kinetics Of Grass Measured In Sacco And With The Gas Production Technique, J W. Cone, H Valk
Rumen Fermentation Kinetics Of Grass Measured In Sacco And With The Gas Production Technique, J W. Cone, H Valk
IGC Proceedings (1977-2023)
Rumen fermentation kinetics of grass and silage, differing in age and yield (1500 -7900 kg DM ha-1), were studied in sacco and in vitro, using the gas production test and the Tilley and Terry technique. An increasing yield increased the content of NDF and lignin in grass and decreased protein content, in vitro degradability measured by the Tilley and Terry method, and rate of fermentation measured with the gas production technique and the nylon bag method. The same ranking in fermentation characteristics was observed using the gas production test, the nylon bag method and the Tilley and Terry method. The …
Agronomic And Silage Quality Traits Of Winter Cereals, M K. Siefers, K K. Bolsen
Agronomic And Silage Quality Traits Of Winter Cereals, M K. Siefers, K K. Bolsen
IGC Proceedings (1977-2023)
Agronomic and silage quality traits were examined for 12 winter cereals harvested at two stages of maturity. Forage dry matter (DM) yields were higher at the mid-dough than the early-heading stage. Post 90 barley (Hordeum L.) had the highest whole-plant DM yield at the early-heading stage, and Presto triticale (X Triticosecale Wittmack) had the highest yield at the mid-dough stage. Newton wheat (Triticum aestivum L.) had the lowest whole-plant DM yield at both stages of maturity. Both crude protein (CP) and ash contents were higher for the early-heading than the mid-dough cereals. All 24 silages were of relatively …