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Full-Text Articles in Life Sciences
Characterization Of Forage Selected By Cattle On Communal Range In Manhiça, Mozambique, O. Faftine, A. Alage, J. P. Muir
Characterization Of Forage Selected By Cattle On Communal Range In Manhiça, Mozambique, O. Faftine, A. Alage, J. P. Muir
IGC Proceedings (1997-2023)
Forage selection by 10 cattle herds was observed monthly over 2 years on a communal rangeland. Plants grazed were hand-plucked as representative of both species and plant portions being cropped by cattle. Herds were led to green pasture year-round. Nutrient concentration of species and plant portions selected by cattle indicated adequate crude protein and calcium but phosphorus deficiency during the dry season. Well-drained escarpments and uplands were more important during the rains while upland depressions and the Nkomati valley were essential for adequate forage intake during the dry seasons.
Effects Of Fertilization And Legume Introduction On The Forage Production Of Brachiaria Decumbens Pastures, M. R. Correa, Tsutomu Kanno, Manuel C. M. Macedo, J. D. G. Santos Junior, L. G. Beretta
Effects Of Fertilization And Legume Introduction On The Forage Production Of Brachiaria Decumbens Pastures, M. R. Correa, Tsutomu Kanno, Manuel C. M. Macedo, J. D. G. Santos Junior, L. G. Beretta
IGC Proceedings (1997-2023)
A grazing experiment was conducted to examine the effects of P and K fertilization and legume introduction on the forage production of Brachiaria decumbens (BD) pastures. Amount of biomass, dry matter production and forage quality were evaluated on BD pastures where three treatments were applied: without maintenance fertilizer (BD-N), with maintenance fertilizer (BD-F), and BD and Stylosanthes guianensis cv. Mineirao (SG) mixture with maintenance fertilizer (BD-FL). The fertilizer application increased an annual average of biomass and the contents of P and K in the leaves. On the other hand, the legume introduction had a positive influence on crude protein and …
Dry Matter Production And Nutritive Value Of Alfalfa (Medicago Sativa L.) And Orchardgrass (Dactylis Glomerata L.) Under Different Light Regimes, A. C. Varella, P. L. Peri, R. J. Lucas, D. J. Moot, D. L. Mcneil
Dry Matter Production And Nutritive Value Of Alfalfa (Medicago Sativa L.) And Orchardgrass (Dactylis Glomerata L.) Under Different Light Regimes, A. C. Varella, P. L. Peri, R. J. Lucas, D. J. Moot, D. L. Mcneil
IGC Proceedings (1997-2023)
Spring and summer alfalfa dry matter and nitrogen production rates were greater than orchardgrass in open pasture and under three shade levels. Ten years old Pinus radiata allowed 60% light transmissivity. The addition of artificial shade resulted in 45% and 25% transmissivity. Orchardgrass pastures were nitrogen deficient and water stressed. In contrast, alfalfa was not stressed and it was more light responsive than orchardgrass. Differences in nutritive value were relatively small between species and between light regimes. Sheep liveweight gain on alfalfa was greater than on orchardgrass. Orchardgrass demonstrated shade tolerance, but alfalfa was more productive even at 25% transmissivity. …
Optimizing Yield And Quality Of Orchardgrass Pasture In Temperate Silvipastoral Systems, P. L. Peri, R. J. Lucas, D. J. Moot, A. C. Varella, D. L. Mcneil
Optimizing Yield And Quality Of Orchardgrass Pasture In Temperate Silvipastoral Systems, P. L. Peri, R. J. Lucas, D. J. Moot, A. C. Varella, D. L. Mcneil
IGC Proceedings (1997-2023)
The objective of this study was to provide grazing management recommendations for a silvipastoral system by determining the effects of shade and nitrogen (N) on the pattern of dry matter accumulation and nutritive value of orchardgrass (Dactylis glomerata) in a subhumid temperate environment. Orchardgrass in open pasture (100% transmittance) and under 10 year old Pinus radiata tree shade (60% transmittance) at 200 stems/ha was used as the main plot and nitrogen (0 and 300 kg N/ha as synthetic urine) was the subplot factor. Dry matter (DM) production of orchardgrass in the first 60-day spring rotation was similar in …
Herbage Characteristics As Affected By The Canopies Of Dominant Trees In A Savanna Of Southern Mozambique, James P. Muir, A. Alage, Inacio C. Maposse
Herbage Characteristics As Affected By The Canopies Of Dominant Trees In A Savanna Of Southern Mozambique, James P. Muir, A. Alage, Inacio C. Maposse
IGC Proceedings (1997-2023)
This study surveyed the species composition, forage yield and forage nitrogen concentration of the herbaceous layer 50, 100 and 200% of the canopy radius from the trunks of many-stemmed false thorn, knob thorn, scented thorn and marula trees in a southern Mozambican savanna. Tree species did not affect herbaceous DM yield or species diversity. Neither direction nor distance from the tree trunk affected DM or specific diversity. Crude protein percentages were 15% higher for legumes and 9% higher for grasses at 50% canopy than at 200% canopy. Grasses under the marulas, the only non-legume tree in the study, had 18% …
Evaluation Of Centrosema Rotundifolium For Sand-Soil Savannas In Eastern Venezuela, I. Rodríguez, R. Schultze-Kraft, S. González
Evaluation Of Centrosema Rotundifolium For Sand-Soil Savannas In Eastern Venezuela, I. Rodríguez, R. Schultze-Kraft, S. González
IGC Proceedings (1997-2023)
An evaluation of a collection of amphicarpic Centrosema rotundifolium showed considerable variability among the six accessions tested, regarding above- and below-ground seed production. Dry-season forage yields were very low but rainy-season yields reached acceptable levels. Contents of crude protein, P and Ca were intermediate to high (CP and P) or low (Ca). Three accessions are suggested for on-farm testing in association with grasses in order to explore the plant persistence implications of belowground seed production under practical conditions. Furthermore, the potential of this amphicarpic species for the conservation of sandy soils deserves attention.
Effective Growing Degree Days As A Critical Factor For Yield And Qualitative Values Of Timothy In Subarctic Growing Conditions, Oiva Nissinen
Effective Growing Degree Days As A Critical Factor For Yield And Qualitative Values Of Timothy In Subarctic Growing Conditions, Oiva Nissinen
IGC Proceedings (1997-2023)
The yield and forage quality of timothy (Phleum pratense L.) leys at different stages of development were studied in 1991-1999 at the Lapland Research Station of the Agricultural Research Centre of Finland in Rovaniemi (66o35´N). The aim of the study was to determine the optimal time for the first cut with respect to yield and qualitative values. In timothy the first heads were visible on 25 June on average and full heading was seen on 5 July, i.e. some ten days later. During this period the dry matter yield increased from 2769 to 4945 kg/ha, crude protein …
Different Harvest Schedules To Prepare Deferred Forage From C4 Grasses In Córdoba, Argentina, M. R. Steinberg, E. F. Nienstedt, H. A. Valdez, J. C. Coraglio, C. A. Vieyra, P. A. Minuzzi
Different Harvest Schedules To Prepare Deferred Forage From C4 Grasses In Córdoba, Argentina, M. R. Steinberg, E. F. Nienstedt, H. A. Valdez, J. C. Coraglio, C. A. Vieyra, P. A. Minuzzi
IGC Proceedings (1997-2023)
From 1995 until 1999 a trial was done in the fields of the Universidad Nacional de Córdoba with four C4 forage grasses. These fields lie in the subtropical and semiarid region of Argentina. This research aimed to identify forage species that could be used as deferred forage for the drier and cooler winter season. Four species of C4 grasses were used: Rhodesgrass (Chloris gayana Kunth), Gatton (Panicum maximum), coloratum (Panicum coloratum) and digitgrass (Digitaria eriantha), respectively. Two growing periods were used: full season growth (FS) and half season regrowth (HS), in both cases …
Productivity And Nutritive Value Of Urochloa Grass Cultivars In Semi-Arid Tropical Kenya, Donald M. G. Njarui, Mwangi Gatheru
Productivity And Nutritive Value Of Urochloa Grass Cultivars In Semi-Arid Tropical Kenya, Donald M. G. Njarui, Mwangi Gatheru
IGC Proceedings (1997-2023)
There is increasing demand for high yielding and nutritious forages to meet the growing dairy farming in semi-arid Kenya. The productivity and nutritive value of seven Urochloa grass cultivars (Urochloa decumbens cv. Basilisk, U. brizantha cvs. Marandu, MG4, Piatá and Xaraes, U. humidicola cv. Llanero and U. hybrid cv. Mulato II) were evaluated in two diverse semi-arid environments, Katumani and Ithookwe in Kenya. At Katumani, the dry matter (DM) yield (5000 - 7500 kg/ha) was highest during the first harvest during the long rains (LR) 2014 season. Dry matter yield declined progressively with season and in the third season …
Feed Intake And Liveweight Gain Of Goats Fed Urochloa Grass, P. M. Ngila, Donald M. G. Njarui, Michael N. Njunie
Feed Intake And Liveweight Gain Of Goats Fed Urochloa Grass, P. M. Ngila, Donald M. G. Njarui, Michael N. Njunie
IGC Proceedings (1997-2023)
Crude protein and digestible dry matter are the most important components of a feed and determine animal performance. The natural pastures in Kenya are prone to great seasonal and spatial fluctuation in both quality and quantity. Consequently, there was need to explore other nutritious alternative feeds. Sixteen growing male Galla goats weighing 10 - 24 kg were used in a twelve weeks feeding trial in the coastal lowlands of Kenya. They were randomly allocated four grass diets consisting of Urochloa brizantha cvs. Piata and MG4, U. hybrid cv. Mulato II and Chloris gayana (Rhodes grass), which was used as the …
Chlorophyll Concentration (Spad Values) As An Indicator Of Crude Protein Content And As A Selection Criterion In Grass Breeding, N. Gáborèík
IGC Proceedings (1997-2023)
The main aim of the study was to analyse chlorophyll a + b content (SPAD values) determined by portable chlorophyllmeter (SPAD- 502, Minolta, Japan) and crude protein content in leaves of timothy, coocksfoot, perennial ryegrass and meadow fescue (total 24 cultivars). Differences between both parameters were confirmed and a close relationship between chlorophyll content (SPAD values) and crude protein concentration was found. Correlation coefficient between SPAD and crude protein varied from 0.541++ for ryegrass to 0.906++ for timothy. This fact should be used for selection of grasses with higher crude protein content and/or better use of mineral soil …
Nitrogen Fertiliser Effects On Perennial Ryegrass Nutritive And Nitrate Content During The Cool Season, Joseph L. Jacobs, Frank R. Mckenzie
Nitrogen Fertiliser Effects On Perennial Ryegrass Nutritive And Nitrate Content During The Cool Season, Joseph L. Jacobs, Frank R. Mckenzie
IGC Proceedings (1997-2023)
A study was undertaken to determine the effects of differing levels of nitrogen (N) application (0 (N1), 25 (N2), 50 (N3) and 75 kgN/ha (N4)) during late autumn (T1), early (T2) and late winter (T3) on the nutritive characteristics and nitrate content of perennial ryegrass. Changes in crude protein (CP) for all treatments at each application time were similar irrespective of level of N application. At the commencement of all treatments, the existing CP content was highest in N3, followed by N2, N1 and N0. Nitrate content decreased throughout T1 primarily due to dry conditions, whilst during T2, levels for …
Seasonal Variation Of Brachiaria Spp. Quality In The Pantanal Of Mato Grosso Do Sul, Brazil, S. M. A. Crispim, E. L. Cardoso, F. Fernandes
Seasonal Variation Of Brachiaria Spp. Quality In The Pantanal Of Mato Grosso Do Sul, Brazil, S. M. A. Crispim, E. L. Cardoso, F. Fernandes
IGC Proceedings (1997-2023)
This study aims to evaluate the dry matter yield and the crude protein (CP) of Brachiaria decumbens and Brachiaria humidicola and soil covering by these species, considering stand lasting age and hydrologic cycle periods in the Pantanal, from November 1996 to November 1997. Dry matter yield presented differences between hydrologic cycle periods and age, and their interactions. B. decumbens and B. humidicola over 10 years comparison yielded the largest amount of dry matter yield, observed in February. B. humidicola growth rate was slower than B. decumbens. Pastures stand ages did not cause differences in crude protein, but differences have …
Sources And Rates Of Phosphorus In Improving Degraded Pasture In Brazilian West Amazon, Valdinei T. Paulino, N. L. Costa, C. R. Townsend, J. A. Magalhães, R. G. A. Periera
Sources And Rates Of Phosphorus In Improving Degraded Pasture In Brazilian West Amazon, Valdinei T. Paulino, N. L. Costa, C. R. Townsend, J. A. Magalhães, R. G. A. Periera
IGC Proceedings (1997-2023)
The effects of phosphorus sources (triple superphosphate – TSP, single superphosphate – SSP and partially acidulated rock phosphate – PARP) and rates (0, 50 and 100 kg/ha of P2O5 on dry matter (DM) yields and chemical composition of a degraded Brachiaria brizantha cv. Marandu pasture were evaluated in a cutting trial. Phosphorus fertilization, irrespective of sources and rates, showed an effective agronomic technique for pasture recuperation. The grass DM yields and potassium contents were significantly improved by phosphorus application, while weed DM yields were depressed. Irrespective of sources and rates, crude protein, phosphorus, and calcium contents were …
Nitrogen Response Efficiencies From Grazed Dairy Pastures Under Dry Conditions, Frank R. Mckenzie, Joseph L. Jacobs
Nitrogen Response Efficiencies From Grazed Dairy Pastures Under Dry Conditions, Frank R. Mckenzie, Joseph L. Jacobs
IGC Proceedings (1997-2023)
Experiments were conducted within a long-term nitrogen (N) fertiliser experiment under grazing. The objective was to examine N response efficiencies (kg dry matter (DM)/kg N) and herbage crude protein (CP) content to fertiliser N applied under dry soil conditions (gravimetric soil moisture content of 17% at 10cm; soil field capacity = 38% and wilting point = 11%) during autumn (April 1999) and late spring (November 1999) in southeastern Australia. Visually, N treated plots were greener in colour than control (no N) plots. No differences were recorded in primary or residual DM yields, N response efficiencies, and pasture growth rates between …
Effect Of Phosphatic Fertilizer Rates Level On Growth, Crude Protein Content And Nitrogen Fixation Ability Of Alfalfa At Sowing Year, Chang-Ho Kim, Hyo-Won Lee
Effect Of Phosphatic Fertilizer Rates Level On Growth, Crude Protein Content And Nitrogen Fixation Ability Of Alfalfa At Sowing Year, Chang-Ho Kim, Hyo-Won Lee
IGC Proceedings (1997-2023)
The experiment was conducted to determine effects of phosphate fertilizers on growth characteristics, crude protein content and nitrogen fixation ability of alfalfa (Medicago sativa L) in the sowing year. Two rates of phosphate (200 and 400 kg/ha P) were applied to phosphorus -deficient native soil in Korea and samples were taken every 7 days from the 30th to the 93rd day. Number of branches, root length and dry matter weight at phosphate fertilizer level of 400kg in sowing year more increased than those at 200kg/ha. The number of nodules did not differ due to phosphate fertilizer rate. The crude …
Comparison Of Nitrate Contents For Reed Canarygrass And Orchardgrass In Large Amounts Of Compound Fertilization, A. Fushimi, Y. Tamura, K. Matoba
Comparison Of Nitrate Contents For Reed Canarygrass And Orchardgrass In Large Amounts Of Compound Fertilization, A. Fushimi, Y. Tamura, K. Matoba
IGC Proceedings (1997-2023)
Reed canarygrass (Phalaris arundinacea L.) could be an ideal candidate for manure application. We compared its growth, crude protein (CP) and nitrate N (NO3-N) content to that of orchardgrass (Dactylis glomerata L.) on different levels of nitrogen fertilization (3,10,15 and 20g N m-2, applied from May 15 to September 15 after each monthly cutting. The dry weight (DW) of reed canarygrass increased significantly with increasing amounts of N nitrogen on July, August and September. However, orchardgrass only showed a significant increase in yield on September. The concentration of CP of reed canarygrass was significantly …
Compatibility Of Kura Clover And Cool Season Grass Mixtures In Michigan, P. Jeranyama, R. H. Leep, T. Dietz
Compatibility Of Kura Clover And Cool Season Grass Mixtures In Michigan, P. Jeranyama, R. H. Leep, T. Dietz
IGC Proceedings (1997-2023)
Kura clover (Trifolium ambiguum Bieb.) is an alternative forage legume for rotational grazing in cool-season grass mixtures. However, compatibility with cool-season grasses is unknown. Seven cool-season perennial grasses were seeded into Kura clover in a rotational grazing experiment. The objectives of this study were to evaluate botanical composition, forage yield and quality of binary mixtures of cool-season grass with Kura clover. Field studies were conducted on a Nester (fine sandy loam) soil at Lake City Experiment Station, Lake City, MI. Botanical compositions in the first year of the study heavily favored grasses (avg. 74%) and Kura clover accounted for …
Forage Quality Of Five Important Grasses At Sar‐Aliabad Summer Rangelands In Golestan Province, Iran, S. A. Hosseini, M. Mesdaghi
Forage Quality Of Five Important Grasses At Sar‐Aliabad Summer Rangelands In Golestan Province, Iran, S. A. Hosseini, M. Mesdaghi
IGC Proceedings (1997-2023)
No abstract provided.
Investigation On Effects Of Phenological Stages And Species On Forage Quality Of Rangelands (Iran), Marzieh Mosayyebi, Hossein Arzani, Mohsen Maleki
Investigation On Effects Of Phenological Stages And Species On Forage Quality Of Rangelands (Iran), Marzieh Mosayyebi, Hossein Arzani, Mohsen Maleki
IGC Proceedings (1997-2023)
No abstract provided.
Dynamic Analysis Of Nutrient Composition And Digestibility Of Cichorium Intybus In Hohhot, Bingzhe Fu, Fugui Mi, Risu Na, Hongmei Ning
Dynamic Analysis Of Nutrient Composition And Digestibility Of Cichorium Intybus In Hohhot, Bingzhe Fu, Fugui Mi, Risu Na, Hongmei Ning
IGC Proceedings (1997-2023)
No abstract provided.
Nutritive Value And Voluntary Intake Of Beef Cattle Females In Pampa Biome, Southern Brazil, Teresa C. M. Genro, M. G. Orqis, L. Oliveira, Alexandre C. Varella, L. R. Milano, A. K. Freitas, T. S. Palma
Nutritive Value And Voluntary Intake Of Beef Cattle Females In Pampa Biome, Southern Brazil, Teresa C. M. Genro, M. G. Orqis, L. Oliveira, Alexandre C. Varella, L. R. Milano, A. K. Freitas, T. S. Palma
IGC Proceedings (1997-2023)
No abstract provided.
Variation In Forage Quality Of Three Rangeland Species In Different Phenological Stages, S. A. Javadi, H. Arzani
Variation In Forage Quality Of Three Rangeland Species In Different Phenological Stages, S. A. Javadi, H. Arzani
IGC Proceedings (1997-2023)
No abstract provided.
Implications Of Excess Nitrogen For Intake, Diet Choice And Production Of Sheep Fed Temperate Pastures, Garry C. Waghorn, G. P. Cosgrove
Implications Of Excess Nitrogen For Intake, Diet Choice And Production Of Sheep Fed Temperate Pastures, Garry C. Waghorn, G. P. Cosgrove
IGC Proceedings (1997-2023)
No abstract provided.
Bromatological Characteristics Of Sugarcane Silages Inoculated With Lactobacillus Buchneri, José C. Pinto, Carla Luiza Da Silva Ávila, H. C. P. Figueiredo, A. R. Morais, Odilon G. Pereira, R. F. Schwan
Bromatological Characteristics Of Sugarcane Silages Inoculated With Lactobacillus Buchneri, José C. Pinto, Carla Luiza Da Silva Ávila, H. C. P. Figueiredo, A. R. Morais, Odilon G. Pereira, R. F. Schwan
IGC Proceedings (1997-2023)
No abstract provided.
Study On Quality Of 22 Alfalfa Varieties In Hebei Lowland Plain, Yuan Li, Haiming Zhao, Nan Xie, Guibo Liu
Study On Quality Of 22 Alfalfa Varieties In Hebei Lowland Plain, Yuan Li, Haiming Zhao, Nan Xie, Guibo Liu
IGC Proceedings (1997-2023)
No abstract provided.
Companion Crops For Pasture Establishment In The State Of Minas Gerais, Brazil, I. F. Andrade, P. Schmidt
Companion Crops For Pasture Establishment In The State Of Minas Gerais, Brazil, I. F. Andrade, P. Schmidt
IGC Proceedings (1997-2023)
No abstract provided.
Effects Of Animal Grazing On Quality Of Grass And Forb Forages In Mazandaran Province Of Iran, Ghasem Ali Dianati Tilaki
Effects Of Animal Grazing On Quality Of Grass And Forb Forages In Mazandaran Province Of Iran, Ghasem Ali Dianati Tilaki
IGC Proceedings (1997-2023)
No abstract provided.
Study Of Phenological Stages Effect On Nutritive Values Of Twelve Species In Hamadan Rangelands, Iran, M. R. Sadeghimanesh, Hossein Arzani, Hossein Azarnivand, E. Shahriary
Study Of Phenological Stages Effect On Nutritive Values Of Twelve Species In Hamadan Rangelands, Iran, M. R. Sadeghimanesh, Hossein Arzani, Hossein Azarnivand, E. Shahriary
IGC Proceedings (1997-2023)
No abstract provided.