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Corn Silage In Sustainable And Conventional Systems For Finishing Beef Cattle, J P. Fontenot, V G. Allen, L L. Scott, D H. Vaughan, C A. Laub, D B. Taylor
Corn Silage In Sustainable And Conventional Systems For Finishing Beef Cattle, J P. Fontenot, V G. Allen, L L. Scott, D H. Vaughan, C A. Laub, D B. Taylor
IGC Proceedings (1977-2023)
The objective of the research was to compare finishing beef steers on high corn (Zea mays L.) silage diets in which the corn was produced under conventional and sustainable systems. The conventional corn forage was produced on a given area for 5 yr, using conventional practices, alternating with 5 yr of alfalfa (Medicago sativa L.) The sustainable system corn forage was produced in a 4-yr rotation with small grain cover crops and legumes, in which corn was grown in a given area once every 4 yr. Input of pesticides was less for the sustainable system. Steers were fed …
Forage Production In The Rice Fields During Dry Season Ryegrass, White Clover And Oats, A S. Raveloson, E Haraldseide
Forage Production In The Rice Fields During Dry Season Ryegrass, White Clover And Oats, A S. Raveloson, E Haraldseide
IGC Proceedings (1977-2023)
In the highland of Madagascar, lack of good forage is very acute during the dry and cool season. The cultivation of temperate forage in rice fields under irrigation is practised by farmers to feed dairycattle. The main forages which are cultivated are oats (Avena sativa), Italian rye grass (Lolium multiflorum) and white clover (. Under experimental conditions rye grass has given the highest yield, but every species have their particularities, which can be useful in forage production. Three varieties of each species were studied in 1993 and 1994. Experiments were carried at five sites in the winter …
Arachis Pintoi: A Multipurpose Legume For Sustainable Land Use, P J. Argel, P C. Kerridge, E A. Pizarro
Arachis Pintoi: A Multipurpose Legume For Sustainable Land Use, P J. Argel, P C. Kerridge, E A. Pizarro
IGC Proceedings (1977-2023)
Perennial peanut (A. pintoi) is a multiple-use tropical legume that can be used in association with a grass or as a cover crop in tree plantations. As a forage plant it has high forage quality and persistence under heavy grazing. As a cover crop and for erosion control it forms a dense cover under shade, excludes weeds and contributes to soil improvement.
Impacts Of Grazed Pastures On Soil Water And Nitrogen Status In Cropping Systems, J A. Baldlock, W D. Bellotti, A D. Moore, I Yunusa
Impacts Of Grazed Pastures On Soil Water And Nitrogen Status In Cropping Systems, J A. Baldlock, W D. Bellotti, A D. Moore, I Yunusa
IGC Proceedings (1977-2023)
In southern Australia pastures precede wheat in many rotations. In recent years the quality (legume content) of many pastures has declined and the value of pastures in rotation with cereals has been questioned. This research aims to develop a more complete understanding of the impact of pastures on crop production through greater knowledge of the below ground processes of soil water and soil inorganic nitrogen. In this study, the impacts of annual barley grass (Hordium leporinum) and barrel medic (Medicago truncatula) pastures on soil water and inorganic nitrogen status at the start of a subsequent wheat growing season were investigated …
Rhizoma Peanut Based Cropping Systems For Dairy Effluent Spray Fields, E C. French, K R. Woodard, D A. Graetz, G M. Prine, H H. Van Horn
Rhizoma Peanut Based Cropping Systems For Dairy Effluent Spray Fields, E C. French, K R. Woodard, D A. Graetz, G M. Prine, H H. Van Horn
IGC Proceedings (1977-2023)
Cropping schemes that efficiently utilize nutrients applied in dairy waste effluent sprayfields is needed to avoid ground water contamination. Three 12 month cropping systems were grown under dairy waste effluent irrigation: 1) corn-forage sorghum-rye (C-FSR), 2) corn-rhizoma peanut-rye (C-RP-R), and 3) rhizoma peanutrye (RP-R). With an effluent N loading rate of 403 kg ha-1 yr-1, 2-yr mean DM yield was 30.7 Mg ha-1 yr-1 for the C-FS-R system, 26.2 for C-RP-R, and 17.9 for RP-R. Nitrogen concentration for C and FS ranged from 9 to 14 g kg-1 while RP ranged from 24 to 35. The higher N concentration in …
A Model To Determine The Optimum Forage Combination And Level Of Concentrate For Dairy Cows, E Jahn, G Gutierrez, R Velasco, M Silva
A Model To Determine The Optimum Forage Combination And Level Of Concentrate For Dairy Cows, E Jahn, G Gutierrez, R Velasco, M Silva
IGC Proceedings (1977-2023)
A model was developed to simulate a milk production system. The program determines the milk production based on energy nutrition, calving date, cow potential and defines grazing sequence and harvesting dates. It can simulate different stocking rates, paddock sizes, levels of production according to pasture quality, seasonal production and concentrate intake. The output of the model is used for an economical analysis which evaluates costs and returns; for some of the most sensitives factors that affect economic returns like prices of milk and concentrate, pasture production and others. The program makes an analysis of sensitivity where these factors are varied …
Small Grains In Cropping Systems To The Brazilian Southern Regions, R S. Fontanelo, L De J.A Del Duca, R S. Fontaneli
Small Grains In Cropping Systems To The Brazilian Southern Regions, R S. Fontanelo, L De J.A Del Duca, R S. Fontaneli
IGC Proceedings (1977-2023)
Winter cereals genotypes (oats, wheat, rye, barley, and triticale) were evaluated for forage and grain yield at the experimental area of the Wheat National Research Center (EMBRAPA/CNPT) and Agronomy College of the Universidade de Passo Fundo (UPF/FA), in Passo Fundo, RS state, southern Brazil, during the years 1992-94. Three cutting frequencies were applied: no cutting, one and two cuttings. A completely random block design with split-plots and three replicates was used. The crops were established under conventional tillage. The fertilization was 200- 300 kg/ha 5-25-25 , plus 22.5-30.0 kg/ha of N (urea) during tiller period (before 45 days after planting …
Rotational Cropping Introducing Tama Ryegrass Renge, (Astragalus Sinicus), Pumpkin (Cucurbita Moschata Var Tecnus) And Horse Bean (Vicia Faba) In Paddy Field, T I. Kawase
IGC Proceedings (1977-2023)
The author was successful in introducing Tama Rye grass mixed with Renge by surface sowing just after the harvest of rice in paddy fields (in dried up condition). The grasses were cut 3-4 cm long, spread between young plants of rice after transplanting and the paddy field filled with water. Then the grasses covered well for depressing weed growth and contributed as green manures. The author was also successful in introducing grasses in rice fields and producing pumpkin or corn then horse beans in paddy fields after they dried up. This rotational cropping of grass -rice- corn or pumpkin and …
Multiple Uses Of Tropical Forage Legumes For Sustainable Farming In The Moist Savannas Of Africa, L Muhr, S A. Tarawali, M Peters, U Merkel, R Schultze-Kraft, D Berner
Multiple Uses Of Tropical Forage Legumes For Sustainable Farming In The Moist Savannas Of Africa, L Muhr, S A. Tarawali, M Peters, U Merkel, R Schultze-Kraft, D Berner
IGC Proceedings (1977-2023)
Ensuring that farming in the moist savannas of Africa is maintained, despite increasing population pressure and agricultural demands, necessitates the sustainable integration of crop and livestock enterprises; a role that forage legumes can fulfill. The potential of eleven herbaceous and two shrubby species of forage legumes in an improved fallow or ley-farming system to provide dry season fodder and beneficial effects to a subsequent cereal crop were investigated. Fodder dry matter yields were highest for Stylosanthes guianensis (9.9 t/ha), Centrosema pubescens, and Aeschynomene histrix. Maize yield following S. guianensis was 138% higher than after natural fallow. Similar increases were …
Selection And Utilization Of Stylosanthes Guianesis, For Green Cover And Feed Meal Production In China, Lin Guodao, P C. Kerridge
Selection And Utilization Of Stylosanthes Guianesis, For Green Cover And Feed Meal Production In China, Lin Guodao, P C. Kerridge
IGC Proceedings (1977-2023)
This study illustrates the value of acquiring, evaluating and making available wild legume germplasm for evaluation in different production systems. A tropical legume selected for use as a pasture legume in South America proved to have greater value as a component in feed meal in intensive production systems in China, where it can return USD 1,400 per hectare, than as a pasture plant.
Tropical Corn For Silage In Multiple Cropping Systems, J C. Burns, D S. Fisher
Tropical Corn For Silage In Multiple Cropping Systems, J C. Burns, D S. Fisher
IGC Proceedings (1977-2023)
This study compared the yield potential and inherent nutritive value and quality of tropical corn (Zea mays L.) with temperate corn and two forage sorghums [Sorghum bicolor (L.) Moench] for use in multiple cropping systems. Tropical corn showed high dry matter yield potential (19.3 Mg ha-1) compared with a selected temperate corn (14.7 Mg ha-1) or with an intermediate (8.5 Mg ha-1) or taller growing forage-type sorghum (10.3 Mg ha-1). Neutral detergent fiber concentration (g kg-1) was lower for temperate corn (330) than for tropical (548) corn which had a concentration similar to the intermediate (497) and forage-type …
The Beneficial Effects Of Short-Term Rotation Systems Of Winter Forage Crops With Maize On Dry Farming Land Of Southwestern China, S R. Zhou, U Simon, K Mao
The Beneficial Effects Of Short-Term Rotation Systems Of Winter Forage Crops With Maize On Dry Farming Land Of Southwestern China, S R. Zhou, U Simon, K Mao
IGC Proceedings (1977-2023)
The objective of this study was to sift out the suitable and better short-term rotation systems of winter forage mixture with maize on dry farming land for the local farmers in Southwestern China. Four species of legume, Italian ryegrass and maize were used to organize six treatments for this experiment. The result showed that the three rotation systems of Astragalus sinicus (80%) + Lolium multiflorum (20%) ’ Zea mays, Medicago hisida (70%) + Lolium multiflorum (30%) ’ Zea mays and Vicia villosa (75%) + Lolium multiflorum (25%) ’ zea mays obtained good forage values (TDOM 4.06-4.36 t/ ha, CP 1.10-1.58 …
The Comparison Of Different Short-Term Rotation Systems Of Winter Forage Crops With Rice In Subtropical Plain Region Of Southwestern China, U Simon, S R. Zhou, K Mao
The Comparison Of Different Short-Term Rotation Systems Of Winter Forage Crops With Rice In Subtropical Plain Region Of Southwestern China, U Simon, S R. Zhou, K Mao
IGC Proceedings (1977-2023)
The objective of this study was to explore the possibility of growing winter forage crops in the present farming system with simple grain production only in subtropical plain region of southwestern China. The result showed that the four rotation systems i.e. Astragalus sinicus (70%) + Lolium multiflorum (30%) rice, Medicago hispida (75%) + Lolium multiflorum (25%) rice, Lolium multiflorum (20%) + Vicia villosa (80%) rice and Astragalus sinicus (80%) + Brassica napus (20%) rice obtained good forage values (TDOM 3.35-4.12 t/ha, CP 1.12-1.31 t/ha, ME 2.53-3.19 X 104 MJ/ha), at the same time, obtained better rice yields (DW 6.35-7.17 t/ha) …
Influence Of Fertilization And Utilization On Botanical Composition And Yield Of Selected Grass Mixtures, R Zarudzki, W Opitz Von Boberfeld, P Daniel, W Mikulski
Influence Of Fertilization And Utilization On Botanical Composition And Yield Of Selected Grass Mixtures, R Zarudzki, W Opitz Von Boberfeld, P Daniel, W Mikulski
IGC Proceedings (1977-2023)
The objective of this study was to determine the influence of fertilization and system of utilization on feeding value and usability for ensilage of selected grass mixtures, first with advantage of ryegrass (Lolium perenne L.), second with orchard grass (Dactylis glomerata L.), in simulating grazing land utilization (6-cuttings per year) and cutting utilization on hay or silage (3-cuttings per year). It was utilized for four years in using the full seeding method. Based on two grass mixtures and using different systems of utilization and different levels of fertilization was tried to define how to proceed with grassland reclamation …
Effects Of Inoculation With Lactobacillus Casei Subsp. Rhamnosus At Ensiling On Fermentation And Flora Of Lactic Acid Bacteria Of Grass Silages, T Masuko, F Kitajima, S Okada, T Uchimura
Effects Of Inoculation With Lactobacillus Casei Subsp. Rhamnosus At Ensiling On Fermentation And Flora Of Lactic Acid Bacteria Of Grass Silages, T Masuko, F Kitajima, S Okada, T Uchimura
IGC Proceedings (1977-2023)
The purpose of this study was to determine whether the inoculation with Lactobacillus casei subsp. rhamnosus (L.c.r) at ensiling would improve the fermentation and affect the flora of lactic acid bacteria of orchardgrass (Dactylis glomerata L) and timothy (Phleum pratense L) silages. The fermentation quality of orchardgrass and timothy silages were improved by the addition of L.c.r and Lactobacillus casei subsp. casei (L.c.c) except orchardgrass silage stored at 15°C. In orchardgrass and timothy silages, the species of lactic acid bacteria in the control silages was different than the inoculated silages. At 15°C and 35°C, L.c.r was dominant in …
Alfalfa (Medicago Sativa L.) Screening For Post-Harvest Fungal Resistance, V I. Babij, K M. Wittenberg, S R. Smith Jr
Alfalfa (Medicago Sativa L.) Screening For Post-Harvest Fungal Resistance, V I. Babij, K M. Wittenberg, S R. Smith Jr
IGC Proceedings (1977-2023)
A leaf screening procedure developed by Wittenberg et al. (in preparation) for detection of plants resistant or susceptible to fungal growth after cutting was compared with fungal growth on whole plants were chopped and stored under warm humid conditions in the laboratory or wilted and baled in a simulated field trial. Four genotypes previously identified as having low, variable and high susceptibility to fungal growth after harvest were used. Extent of fungal growth, as measured by glucosamine analysis, for plant material chopped and incubated under conditions conducive to molding, supported plant resistance ratings as determined by the screening procedure. Minimal …
Intake, Growth And Feed Preference By Steers Fed Combinations Of Alfalfa And Annual Ryegrass Silage, E Charmley
Intake, Growth And Feed Preference By Steers Fed Combinations Of Alfalfa And Annual Ryegrass Silage, E Charmley
IGC Proceedings (1977-2023)
Nutritive value and intake of legumes is generally considered superior to grasses when ensiled at similar digestibility. The objectives of this experiment were to determine the optimum combination of annual ryegrass (Lolium multiflorum) and alfalfa (Medicago sativa) silages to maximize growth rate of steers fed silage, determine chemical components which influenced performance, and to determine if steers selected the optimum mixture when given a choice. Both silages contained similar concentrations of dry matter, acid detergent fibre and organic acids, but alfalfa silage had higher concentrations of nitrogen (N), soluble N and ammonia N. Annual ryegrass contained …
Steer Growth With Round-Baled Red Clover Silage Preserved With Enzyme Based Additive, P Narasimhalu
Steer Growth With Round-Baled Red Clover Silage Preserved With Enzyme Based Additive, P Narasimhalu
IGC Proceedings (1977-2023)
A 12-wk growth trial was conducted on 32 Holstein steers to study the effects of preserving round-baled red clover (Trifolium pratense L.) without or with enzyme additive on silage composition and steer performance. Enzyme additive did not affect silage composition except for increasing lactic acid content. Intake was higher for treated silage but live weight or carcass gain was not different between untreated and treated silage. Supplementing treated silage with barley did not affect silage intake but roasted-steeped soybeans or potato plus roasted-steeped soybeans lowered silage intake. Supplementation of treated silage, particularly with barley, improved live or carcass weight.
Storage Losses In Large Round Bale Using Various Storage Methods For Six And Eighteen Months, R C. Reeder, D H. Samples, H M. Bartholomew, S L. Boyles
Storage Losses In Large Round Bale Using Various Storage Methods For Six And Eighteen Months, R C. Reeder, D H. Samples, H M. Bartholomew, S L. Boyles
IGC Proceedings (1977-2023)
Grass hay was baled with a variety of balers and tying materials in June, 1994 and 1995, at Jackson, Ohio. The bales were prepared and stored several ways. Waste hay accounted for less than ten percent of the dry matter after storage for six and eighteen months in all cases except one (a plastic wrap system intended for use with haylage). Bales stored inside had no waste. The best outdoor storage system, with less than one percent waste, used a ‘bale bonnet’ (top half covered with a plastic sheet) with the bale on a slatted pallet. One group of bales …
Effect Of The Ammoniation On Brachiaria Decumbens Hays, B Rosa, R A. Reis, K T. Resende, L.R De A. Rodrigues, C C. Jobim
Effect Of The Ammoniation On Brachiaria Decumbens Hays, B Rosa, R A. Reis, K T. Resende, L.R De A. Rodrigues, C C. Jobim
IGC Proceedings (1977-2023)
The effect of the ammoniation on B. decumbens hay obtained during the phase of seed maturation were studied as follows: hay not treated and hay treated with 2 or 3% of NH3, or 3.6 or 5.4% of urea. Ammoniation reduced the contents (g/kg DM) of NDF, hemicellulose, ADF, and lignin and increased the contents of total N, and ADIN; the IVDMD; the IVOMD; the “in situ” degradability of DM and OM and the apparent digestibility (g/kg nutrient) of DM, OM, and CP, as well increased the daily voluntary intake (g/kg0.75) of DM, the digestible DM, OM, the digestible OM, the …
Effects Of A New Cellulase Derived From Acremonium On Silage Fermentation, K Atakul, A Aniwaru, N Narasaki, E No, E Chase
Effects Of A New Cellulase Derived From Acremonium On Silage Fermentation, K Atakul, A Aniwaru, N Narasaki, E No, E Chase
IGC Proceedings (1977-2023)
Alfalfa (Medicago sativa L) and timothy (Phleum pratense L) were ensiled in laboratory silos to evaluate the effect of cellulase derived from Acremonium (0, 0.005, 0.01, and 0.02% to alfalfa and 0, 0.006, 0.012, and 0.024% to timothy) on silage fermentation. In alfalfa, the addition of cellulase inhibited the production of butyric acid, and as the percentage of cellulase increased, the concentration of ammonia decreased and the content of lactic acid increased. The dry matter recovery significantly decreased with the addition of cellulase. The quality of timothy silage also increased due to the absence of butyric acid. The …
Influence Of Drying Method And Temperature Of Ruminal Degradable Protein Of Switchgrass, D E. Farnham, K J. Moore, J R. George
Influence Of Drying Method And Temperature Of 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 71° 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 …
Ensilage For Low Resources Farmers 2. Poultry Litter As Cheap Additive, F.H K. Asiedu, C A. Alexander, G Proverbs
Ensilage For Low Resources Farmers 2. Poultry Litter As Cheap Additive, F.H K. Asiedu, C A. Alexander, G Proverbs
IGC Proceedings (1977-2023)
The effect of poultry litter (15% wet basis) additive on the quality of king grass (Pennisetum purpureum x P. americanum) silage was studied in a randomized block design experiment (8 replications). Compared with grass silage (G), grass + poultry litter (G+P) caused significant (P<0.05) reduction in moisture (G, 716 v G+P, 670 g/ kgDM), pH (5.41 v 4.72) and butyric acid (9.6 v 5.5 g/kgDM). Crude protein (CP, Nx6.25, g/kgDM), in vitro digestibility (IVOMD, g/ kgDM) and metabolizable energy (ME, MJ/kgDM) increased from (G)104, 536 and 8.00 to (G+P) 127, 613 and 9.19. In a feeding trial using St. Elizabeth x Barbados Blackbelly lambs G+P gave significantly (P<0.05) higher daily gain (182 v 149 for G). This was related to significantly (P<0.05) higher intake of CP and ME from G+P (71.9 v 55.1 g/d and 5.20 v 4.24 MJ/d).
Influence Of Addition Of Previously Fermented Juice To Alfalfa Ensiled At Different Moisture Contents, M Ohshima, L M. Cao, E Kimura, Y Ohshima, H Yokota
Influence Of Addition Of Previously Fermented Juice To Alfalfa Ensiled At Different Moisture Contents, M Ohshima, L M. Cao, E Kimura, Y Ohshima, H Yokota
IGC Proceedings (1977-2023)
Alfalfa (Medicago sativa L.)was ensiled with or without previously fermented juice (PFJ) after wilting for 0, 3, 6 and 24 h. They were ensiled in 900ml glass bottles at 400g/800cm3 and preserved at 25°C for 45 d. The moisture content of the silages were 810, 730, 690 and 580g/kg, respectively. The PFJ was prepared by macerating 200g of freshly harvested alfalfa with 1,000ml of water, filtering through double cheese cloth, adding 20g/l sucrose and incubating anaerobically at 30°C for 2 d. They were added 2.5ml/kg of chopped alfalfa. Lactic acid fermentation of silage was enhanced bAlfalfa (Medicago sativa …
Effect Of Storage On Quality Of Cowpea Haulm Hay Under Warm Humid Conditions, S O. Apori
Effect Of Storage On Quality Of Cowpea Haulm Hay Under Warm Humid Conditions, S O. Apori
IGC Proceedings (1977-2023)
The effect of four months storage on chemical composition of hay prepared from cowpea haulm was monitored in a Coastal savanna environment in Cape Coast, Ghana. The average hydrometeorological conditions during the experimental period were 27.1oC of temperature, 30.1mm of rainfall, 80.4% of relative humidity and 0.80 water activity. Parameters measured were dry matter (DM%), crude protein (CP%), metabolisable energy for ruminants [MEr, MJME/KgDM], protein to energy ratio (p/E, g/MJME), pH, and rumen degradable nitrogen (RDN,%). The CP, MEr, P/E, pH and RDN values of 13.04%, 7.17 MJME kg-1DM, 18.18g/MJME, 6.35 and 58.83% of freshly prepared hay changed to 12.05%, …
Intake, Digestion And Performance Comparisons For Cattle Fed Macerated Vs. Roller-Conditioned Alfalfa (Medicago Sativa L.) Forage, Suwarno, K M. Wittenberg, W P. Mccaughey
Intake, Digestion And Performance Comparisons For Cattle Fed Macerated Vs. Roller-Conditioned Alfalfa (Medicago Sativa L.) Forage, Suwarno, K M. Wittenberg, W P. Mccaughey
IGC Proceedings (1977-2023)
The objective of this study was to determine whether maceration of alfalfa forage at the time of harvest will have a positive impact on intake, digestibility and performance in beef cattle. A performance trial conducted with 24 growing beef calves resulted in a 7% and 10% increase (P<0.05) in dry matter intake (kg/d) and daily gain (kg), respectively, when animals were fed alfalfa silage harvested with a macerator vs. a mower conditioner. Feed efficiency was not affected by treatment. Four steers assigned to alfalfa hay harvested with a macerator vs. mower conditioner showed no differences in dry matter intake, however, dry matter digestibility for the macerated hay was higher.
Comparative Characteristics During Wilting For Forage Harvested By Maceration Vs. A Conventional Roller-Conditioner, Suwarno, K M. Wittenberg, W P. Mccaughey
Comparative Characteristics During Wilting For Forage Harvested By Maceration Vs. A Conventional Roller-Conditioner, Suwarno, K M. Wittenberg, W P. Mccaughey
IGC Proceedings (1977-2023)
Two studies were conducted to monitor forage nutrient and microbial changes during wilting of alfalfa (Medicago sativa L.) forage in response to varying degrees of maceration at harvest. Early bloom alfalfa forage was harvested with either a roller conditioner (Control) or a macerator, with four degrees of maceration (Light, Light plus, Moderate and Severe) imposed. Macerated forage reached an 80% dry matter 10-27 hours sooner than roller-conditioned forage, the most rapid drying rates being associated with the more severely macerated treatments. Total bacteria and lactic acid bacteria populations tended (P < 0.07 and P < 0.08, respectively) to increase with maceration. Macerated forage, when exposed to precipitation, had lower (P < 0.05) crude protein and higher (P < 0.05) fiber concentration than roller-conditioned forage. Macerated forage, exposed to 2 cm precipitation during wilting without precipitation reached 80% DM sooner than conventionally cut alfalfa exposed to no precipitation.
Dry Matter Yield And Nutritive Value Of Coast-Cross N1 Preserved As Hay, Silage, And Haylage, J B. Andrade, E Ferrari Jr, W Lavezzo, V T. Paullino, J R. Nogueira, G Braun, F B. Castro
Dry Matter Yield And Nutritive Value Of Coast-Cross N1 Preserved As Hay, Silage, And Haylage, J B. Andrade, E Ferrari Jr, W Lavezzo, V T. Paullino, J R. Nogueira, G Braun, F B. Castro
IGC Proceedings (1977-2023)
Dry matter yield and nutritive value of coast-cross n° 1 (Cynodon dactylon (L.) Pers preserved as hay, silage and haylage were studied. The forage was harvested after 28, 35, 42 and 49 days of growth. Fertilization was completed with 400 kg/ha single superphosphate and 500 kg/ha 20-0-20 at the beginning of the experiment. The experimental design for dry matter yield (2 x 2 m plots) was a randomized block with four replications. Nutritive value was also analyzed in a randomized block design being the treatments arranged in a 3 x 4 factorial (three preservation methods and four ages). Dry …
Evolution Of The Nutritional Quality During Big Bale Ensilage Of Temperate Multispecies Pastures, L M. Gutierrez, E M. Viviani Rossi
Evolution Of The Nutritional Quality During Big Bale Ensilage Of Temperate Multispecies Pastures, L M. Gutierrez, E M. Viviani Rossi
IGC Proceedings (1977-2023)
The objective of this work was to assess the evolution of the nutritive quality of big bales composed of multispecifies pastures (Phalaris acuática, Festuca arundinacea, Lolium perenne and Medicago sativa). Ten big bales were analysed after 90 and 120 days for the following: dry matter (%DM); crude protein (CP, %DM); pH; neutral detergent fibre (NDF, %DM); digestibility in vitro of DM (IVDMD, %DM); ammonia nitrogen (NH3-N/%TN); soluble protein (SP, %NT) and non structural carbohydrates (WSC, %DM).The results were analyzed through variance of the means and significant differences (p<0.05) were found in percentages of DM (32.9% and 27.8%); CP (12.1% and 8.6%); pH (4.6 and 6.7); IVDMD (61.1% and 53.2%); N-NH3/TN (11.8% and 36.0%); SP (8.6% and 12.6%) and no differences were found in NDF (60.2% and 61.6%) and WSC (2.8% and 1.9%) (p>0.05).
The Drought Resistance Mechanism Of Phalaris Arundinacea L., Qi Guang, Zhou Bibua
The Drought Resistance Mechanism Of Phalaris Arundinacea L., Qi Guang, Zhou Bibua
IGC Proceedings (1977-2023)
The measurement of morphological and physiological indices of Phalaris arundinacea to drying and irrigation treatments and in natural field conditions (ck) were conducted in tillering stage and stem elongation stage. Results show that plants in the drying treatment, compared with plants in the irrigation treatment and control, that their single plant leaf area, plant height, chlorophyll content, intensity of photosynthesis, stomatal area and plant yields were decreased, but the intensity of respiration increased. Through statistic analysis, none of those indices, except stomatal area, were significantly different. It indicates that the species of Phalaris arundinacea is strongly drought resistant and could …