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

Digital Commons Network™

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

2024

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 4681 - 4710 of 11699

Full-Text Articles in Entire DC Network

Dry Matter Production And Nutritive Value Of Forage Of Digitaria Eriantha Cv. Irene In Two Locations Of The Central Semi-Arid Region Of Argentina, C A. Frasinelli, H J. Petruzzi, J H. Veneciano, C M. Ferri, V V. Jouve, N P. Stritzler, O A. Terenti Jun 2024

Dry Matter Production And Nutritive Value Of Forage Of Digitaria Eriantha Cv. Irene In Two Locations Of The Central Semi-Arid Region Of Argentina, C A. Frasinelli, H J. Petruzzi, J H. Veneciano, C M. Ferri, V V. Jouve, N P. Stritzler, O A. Terenti

IGC Proceedings (1977-2023)

The aim of this experiment was to compare dry matter (DM) production rates and nutritive value of a warm-season grass, Digitaria eriantha cv. Irene, in two locations of Central Argentina, Santa Rosa (SR) and Villa Mercedes (VM). The plants were established in two identical groups of plots, within a randomized block design. DM rates were calculated from serial, out of phase clippings, and in vitro dry matter digestibility (IVDMD) and crude protein (CP) content analyzed on subsamples. The study lasted for three consecutive growing seasons. Results showed that DM production rates were generally higher (P<0.05) in SR than in VM, but IVDMD and CP content showed no clear trends between both locations. DM production tended to lower from year 1 to 3, related to processes of N depletion from soils (VM) and diminishing rainfall (SR). It is concluded that D.eriantha is a very promising warm-season grass to Central Argentina. Data of nutritive value obtained in one location can be used in others, but results of DM production rates should be taken under the conditions where they will be used.

Go to article

Separate Harvest Of Leaves From The Stems Of Lucerne Stands, L Schmidt Jun 2024

Separate Harvest Of Leaves From The Stems Of Lucerne Stands, L Schmidt

IGC Proceedings (1977-2023)

Lucerne leaves have significantly higher crude protein and lower crude fibre contents than the stems. The present methods for separating the leaves from the stems have serious deficiencies. Early harvesting, for example, weakens the lucerne stand, and sifting after artificial drying impairs quality. Above that, preparation of leaf protein concentrates is rather expensive. Field trials with a pronged cylinder which strips the leaves from the stems produced leaf yields of ž 80 % with a stem portion of £ 15 % (containing ž 26 % crude protein and £ 18 % crude fibre in the dry matter). Lucerne leaves can …

Go to article

Persistence Of Contrasting Perennial Ryegrass- White Clover Mixtures At Two Defoliation Frequencies, A Elgersma, H Schlepers Jun 2024

Persistence Of Contrasting Perennial Ryegrass- White Clover Mixtures At Two Defoliation Frequencies, A Elgersma, H Schlepers

IGC Proceedings (1977-2023)

Mixtures of two cultivars of perennial ryegrass with contrasting growth habits and three white clover cultivars differing in leaf sizes were evaluated at two cutting frequencies to study white clover persistence. A trial was sown in 1991 on a clay soil. The plots received no nitrogen fertilizer. Throughout the years, mixtures with the large-leaved clover cv. Alice yielded significantly more herbage dry matter and had a higher clover content than mixtures with cvs. Gwenda and Retor. Companion grass cultivar did not consistently affect yield, nor botanical composition. Cutting at 2 t DM ha-1 resulted in slightly higher total annual yields …

Go to article

Evaluation Of Five Bahiagrass Cultivars In Southwest Florida, R M. Muchovej, J J. Mullahey Jun 2024

Evaluation Of Five Bahiagrass Cultivars In Southwest Florida, R M. Muchovej, J J. Mullahey

IGC Proceedings (1977-2023)

Bahiagrass, mostly of the cultivar Pensacola, is the predominant grass in Florida and occupies two million hectares of the five million currently under pastures in the state. Several other cultivars exist and are available to ranchers through seed producing companies. This study compares five cultivars of bahiagrass (T-9, Pensacola, Argentine, Paraguay, and T-7) with respect to dry matter yield, nitrogen content, and digestibility in Southwest Florida. Evaluations were made at intervals of approximately 35 days from late June to early December. Forage production was greatest for T-9; this variety produced 35% more forage than Pensacola. All varieties behaved similarly regarding …

Go to article

Nextstat: A Low-Cost Lot Based Paging Solution To Request Urgent Help In The Or Using Amazon Aws Cloud, Nathan Goergen Jun 2024

Nextstat: A Low-Cost Lot Based Paging Solution To Request Urgent Help In The Or Using Amazon Aws Cloud, Nathan Goergen

Graduate Medical Education Research Journal

NA

Go to article

Bermudagrass Pastures Under Long-Term Stocking Rates And Fertility Regimes, F M. Rouquette Jr, G R. Smith, V A. Haby Jun 2024

Bermudagrass Pastures Under Long-Term Stocking Rates And Fertility Regimes, F M. Rouquette Jr, G R. Smith, V A. Haby

IGC Proceedings (1977-2023)

After 16 years of grazing ‘Coastal’ and common bermudagrass [Cynodon dactylon (L.) Pers.] pastures each at 3 levels of forage mass, N vs non-N fertilizer was superimposed to assess stand maintenance of bermudagrass and cow-calf performance. After 7 additional years of fertility treatments, N plus overseeded ryegrass (Lolium multiflorum Lam.) provided for 202 days grazing; whereas, K plus overseeded clovers (Trifolium incarnatum L.) and (T. vesiculosum Savi.) provided adequate forage for 179 days grazing. Coastal supported higher stocking rates (2.3 to 7.9 680-kg animal units(AU)/ha) than common bermudagrass (2.0 to 5.3 AU/ha). Suckling calf daily gains …

Go to article

Effect Of The Cutting Frequency On Yield, Crude Protein And Mineral Contents Of A Panicum Maximum/Centrosema Macrocarpum Mixture, J Faria-Marmol, D E. Morillo, R Gonzalez, Z Chirinos Jun 2024

Effect Of The Cutting Frequency On Yield, Crude Protein And Mineral Contents Of A Panicum Maximum/Centrosema Macrocarpum Mixture, J Faria-Marmol, D E. Morillo, R Gonzalez, Z Chirinos

IGC Proceedings (1977-2023)

Dry matter (DM) yield, crude protein (CP) and mineral composition of Panicum maximum-Centrosema macrocarpum association as affected by three cutting frequencies (28, 42 and 56 days) were compared in a tropical dry forest of Venezuela. No differences (P<0.05) among defoliation frequencies for any of the variables were detected. All mineral concentrations evaluated in Guineagrass (P. maximum) were considered adequate for grazing ruminants. In C. macrocarpum only P (0.24%) and N (0.08%) were close to critical level for deficiencies in ruminants. P. maximum-Centrosema macrocarpum mixture offered adequate levels for grazing ruminants for all nutrients evaluated.

Go to article

Effects Of Three Cutting Frequencies On Yield, Crude Protein And Mineral Contents Of Centrosema Macrocarpum, J Faria-Marmol, D E. Morillo, R Gonzalez, Z Chirinos Jun 2024

Effects Of Three Cutting Frequencies On Yield, Crude Protein And Mineral Contents Of Centrosema Macrocarpum, J Faria-Marmol, D E. Morillo, R Gonzalez, Z Chirinos

IGC Proceedings (1977-2023)

Dry matter (DM) yield, crude protein (CP) and mineral composition of Centrosema macrocarpum as affected by three cutting frequencies (28, 42 and 56 days) were compared in a tropical dry forest of Venezuela. DM yield and plant height were increased (P<0.05) by increasing the cutting intervals, whereas CP, ash and most minerals were not affected (P<0.05). Only P concentration declined (P<0.05) with increasing plant maturity. The lowest P concentration (0.18%) resulted from the longest cutting interval. Average CP concentration and mineral contents of C. macrocarpum were adequate with grazing ruminant requirements with exception of P (0.21%) and Na (0.073%).

Go to article

Effect Of The Cutting Frequency On Yield And Crude Protein And Mineral Contents Of Panicum Maximum, D E. Morillo, J Faria-Marmol, R Gonzalez Jun 2024

Effect Of The Cutting Frequency On Yield And Crude Protein And Mineral Contents Of Panicum Maximum, D E. Morillo, J Faria-Marmol, R Gonzalez

IGC Proceedings (1977-2023)

Dry matter yield per cutting and total production, crude protein content and mineral composition of Guineagrass (Panicum maximum Jacq.) as affected by three cutting frequencies (28, 42 and 56 days) were evaluated in a wet/dry tropical area in Venezuela. Only CP was affected (P<0.05) by the cutting frequency, decreasing (P<0.05) from 11.9 to 9.2 % as the harvest interval increased. Mean DM yield per cutting and accumulated over the 336-day experiment (661 and 5140 kg/ha) were low, probably due to low rainfall (600 mm) during the trial. Mean macro (%) and microelement (ppm) concentrations were: Ca, 0.9; P, 0.31; Mg, 0.45; K, 2,17; Na, 0.09; Cu, 11; Fe, 133 and Mn, 269, which were regarded as nutritionally adequate for grazing ruminants .

Go to article

Agronomic Evaluation Of Novel Germplasm Under Grazing: Arachis Pintoi Bra-031143 And Paspalum Atratum Bra-009610, A O. Barcellos, E A. Pizarro, N L. Costa Jun 2024

Agronomic Evaluation Of Novel Germplasm Under Grazing: Arachis Pintoi Bra-031143 And Paspalum Atratum Bra-009610, A O. Barcellos, E A. Pizarro, N L. Costa

IGC Proceedings (1977-2023)

The effect of the animal on the pasture and their reverse consequence was studied on two replicated areas of 0.27 and 0.18 ha in a grasslegume sward established in a poorly humid drained soil in the Brazilian Cerrado. The A. pintoi BRA-031143 and P. atratum BRA- 009610 sward was evaluated during four consecutive years under two grazing pressures (GP). The imposed GP affected the botanical composition and pasture availability. Mean live weight gain/animal/ day under the two imposed GP varied from 387+17g, 578+68g, 697+35g and 687+123g between the 1992/93 and 1995/96 rainy seasons. During the dry season the LWG/animal/day varied …

Go to article

Relation Between Growth In Summer And The Overwintering Ability In Hybrid Pennisetum And Napiergrass Genotypes, Y Ishii, K Ito, S Shinohara Jun 2024

Relation Between Growth In Summer And The Overwintering Ability In Hybrid Pennisetum And Napiergrass Genotypes, Y Ishii, K Ito, S Shinohara

IGC Proceedings (1977-2023)

The growth in summer and the overwintering ability of interspecific hybrid (Hy) between pearl millet (Pennisetum glaucum) and napiergrass (P. purpureum) was compared with those of two napiergrass varieties, i.e. Wruk Wona (Wr) and Merkeron (Me) in the field. The Hy had smaller dry matter yield (DMY) and mean tiller weight with higher tiller number and in vitro dry matter digestibility (IVDMD) than Wr and Me at the end of July, but DMY and IVDMD were not significantly different among genotypes in November. Regrown percentage of plants, number and dry weight of regrown tillers after overwintering were the …

Go to article

Overgrazing Impact Upon Rangeland Ecosystems Of Kazakstan Deserts, K Karibayeva Jun 2024

Overgrazing Impact Upon Rangeland Ecosystems Of Kazakstan Deserts, K Karibayeva

IGC Proceedings (1977-2023)

Vegetation dynamics trends are studies in connection with natural and human-induced factors. Interrelation of rangeland ecosystems with climate and grazing type is revealed. Degression, demutation and dynamics regulation diagrams are given for different conditions of use. Some quantitative and qualitative criteria were elaborated for rangeland ecosystems assessment. Ecosystem degradation indicators were identified, methods were elaborated for making subject maps for environmental assessment and sustainable management of grasslands. A method of seasonal cartographic rangeland cadastre was elaborated by the example of Volga - Ural sands on the basis of the map (S. 1:500,000)

Go to article

Productivity Of Pasture Consisting Of Both Unimproved And Improved Areas In Aso Region Of Kyushu District, C Okamoto, K Kabata, K Tsuji, M Kikuchi Jun 2024

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 …

Go to article

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 Jun 2024

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, …

Go to article

Nutrient Content Of Saskatchewan Native Range Plants, Zoheir Abouguendia Jun 2024

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 …

Go to article

Effect Of Nitrogen On The Reserve Nutrients Of Rhizomes And Their Relation To Shoot Regrowth In Miscanthus Floridulus, Y C. Wang, M L. Lee Jun 2024

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. …

Go to article

Sustainability Of Management Practices Of Mountain Pastures In Reunion Island (Indian Ocean), V Blanfort, P Thomas, G Balent, A Michon Jun 2024

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 …

Go to article

Litter Decomposition And Nutrients Release During Decomposition In A Humid Grassland Of Northeastern India, P S. Yadava, N S. Thoudam Jun 2024

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 …

Go to article

Nitrogen Cycling In Pasture Grazed By Lactating Dairy Cows, M P. Russelle, L D. Satter, T Dhiman, V R. Kanneganti Jun 2024

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 …

Go to article

Triticale As Early Winter Forage For Meat Calves On Sandy Acidic Soils, M Bemhaja, D F. Risso Jun 2024

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 …

Go to article

The Nature Of Competition Between Forage Herbs, Perennial Ryegrass, And White Clover Under Organic Farming Conditions, A P. Umrani, D Younie, P R. English Jun 2024

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 …

Go to article

Anatomic And Chemical Traits, And In Vitro Digestibility Of Three Tropical Grasses, S Queiroz, Jose Alberto Gomide, Jose Maria Jun 2024

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. …

Go to article

White Clover Saponins And Their Variation With Shading Or Nitrogen Application Level, K Sugawara, S Ogura, Y Yashima Jun 2024

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.

Go to article

Genetic Variability Of Ruminal Starch Degradation Of Corn Harvested At Two Silage Maturities, C Philippeau, M Champion, B Michalet-Doreau Jun 2024

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 …

Go to article

Estimation Of Organic Matter Digestibility And Me Content In Ruminant Feeds From In Vitro Gas Production, H Steingass, K P. Aiple, W Drochner Jun 2024

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 …

Go to article

Pearl Millet: A New Green Fodder Crop In Korea, B H. Choi, K Y. Park, R K. Park Jun 2024

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 …

Go to article

Management Of Soil Fertility And Grass-Pine Interactions In Silvopastoral Systems, M Pinto, G Besga, S Virgel, M Rodrigues Jun 2024

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 …

Go to article

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 Jun 2024

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 …

Go to article

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 Jun 2024

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 …

Go to article

Mineral Composition Of Perennial Pasture Species Grazed By Dairy Cows In South-Eastern Australia, P T. Doyle, C R. Stockdale, W J. Wales Jun 2024

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 …

Go to article

First Prev Next Last