Grazing Schedule Effect on Forage Production and Nutritive Value of Diverse Forage Mixtures

2009 ◽  
Vol 101 (2) ◽  
pp. 408-414 ◽  
Author(s):  
A. Deak ◽  
M. H. Hall ◽  
M. A. Sanderson
Keyword(s):  
Nutritive Value ◽  
Forage Production ◽  
Schedule Effect ◽  
Forage Mixtures

scholarly journals 111 Metsulfuron and variable nitrogen application rates on infected tall fescue: effects on stocker performance, forage yield, nutritive value, ergovaline concentration and botanical composition

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 31-31
Author(s):  
Kevin R Meng ◽  
Eric Bailey ◽  
Josh Zeltwanger ◽  
Hannah Allen ◽  
Mikaela Adams ◽  
...  
Keyword(s):  
Species Composition ◽  
Tall Fescue ◽  
Nutritive Value ◽  
Ergot Alkaloids ◽  
Fertilization Rate ◽  
Forage Yield ◽  
Nitrogen Application ◽  
Forage Production ◽  
Seed Head ◽  
Application Rates

Abstract Chemical seed-head suppression of endophyte infected tall fescue (Lolium arundinaceum) improves stocker cattle performance but may decrease forage yield. Spring nitrogen application increases tall fescue growth with a concomitant increase in ergot alkaloids, produced by the symbiotic endophyte Epichloë coenophiala. We hypothesized that greater amounts of nitrogen applied to tall fescue would increase forage yield and offset losses in forage production from chemical suppression of seed-heads with metsulfuron without effect on alkaloid concentration. Ninety-six steers (270 ± 20 kg) were randomly assigned to one of sixteen paddocks (1.8 ha) on April 18 and continuously grazed for 57 d. Paddocks were blocked by previous use (n = 4) and randomly assigned to one of four treatments; no metsulfuron, no nitrogen (NEGCON), metsulfuron with 0 (MET0), 67 (MET67), or 134 (MET134) kg/ha of ammonium nitrate, applied March 11. Steers grazing MET0 paddocks were removed 17 d early due to insufficient forage availability. Steer weight, forage yield, forage nutritive value and ergot alkaloids in forage samples were measured monthly. Seed-head frequency and species composition were determined in June. Metsulfuron application reduced (P < 0.01) tall fescue seed-heads by 80%. Metsulfuron decreased (P = 0.03) ergovaline but ergovaline increased (P < 0.01) at each monthly sampling across treatments. Nitrogen had no impact on ergovaline concentration (P = 0.50). Forage yield tended to be least (P = 0.07) for MET0, intermediate for NEGCON and MET67, and tended to be greatest for MET134 (P = 0.08). Steer ADG was not affected by treatment (P < 0.80). Metsulfuron decreased NDF (P=0.02) regardless of fertilization rate. Forage CP increased with fertilization (P < 0.01) and no differences were detected between NEGCON and MET0 (P = 0.45). Species composition was not impacted (P >0.07) by treatment. Metsulfuron decreased seed-head growth and ergovaline concentration in tall fescue. Additional nitrogen fertilizer ameliorated forage yield lost to metsulfuron application but did not impact steer gain.

scholarly journals 115 Nitrogen fertilizer effects on above ground sward characteristics and beef heifer performance from native warm-season grass blends

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 26-27
Author(s):  
Caroline Chappell ◽  
Landon Marks ◽  
Katie Mason ◽  
Mary K Mullenix ◽  
Sandra L Dillard ◽  
...  
Keyword(s):  
Nutritive Value ◽  
Warm Season ◽  
Ground Cover ◽  
Application Rate ◽  
Light Interception ◽  
Botanical Composition ◽  
Forage Production ◽  
Beef Heifers ◽  
Fertilizer Application Rate ◽  
Canopy Light Interception

Abstract A 2-yr study was conducted at Black Belt Research and Extension Center in Marion Junction, AL, to evaluate the effect of nitrogen (N) fertilizer application rate on forage production characteristics, nutritive value, and animal performance of beef heifers grazing a mixture of native warm-season grasses (NWSG) including big bluestem, little bluestem, and indiangrass. Six, two-hectare plots were randomly assigned to one of two treatments (0 or 67 kg N ha-1 applied in early April; n = 3 replications per treatment). Paddocks were continuously stocked with four weaned Angus × Simmental beef heifers (initial BW 288 ± 7 kg) from late May/early June through mid-to-late August during 2018 (73 grazing d) and 2019 (70 grazing d), respectively. Put-and-take cattle were used to manage forage to a target of 38 cm. Forage mass and canopy heights were collected every two weeks during the trial. Visual ground cover ratings, canopy light interception, and botanical composition were measured at the beginning and end of the trial in each year. Hand-plucked samples were collected every two weeks during the grazing trial to determine forage nutritional value. Data were analyzed using the PROC MIXED procedure in SAS 9.4, and differences were declared significant when P ≤ 0.05. Nitrogen fertilized NWSG had greater crude protein (P < 0.0001), sward heights (P = 0.0003), and canopy light interception at the beginning of the season (P = 0.0049) compared to non-fertilized paddocks. However, there were no differences (P ≥ 0.05) among N-fertility treatments for mean forage mass, heifer ADG, or BCS across the 2-yr study. Botanical composition data indicated that indiangrass decreased from 64% to 61% (P = 0.0022) and weed pressure increased from 11% to 15% (P = 0.0064) across the summer grazing season. Canopy light interception decreased by 51% from early June to August in fertilized NWSG and 26% in unfertilized paddocks, respectively. These data illustrate that NWSG systems may provide a viable grazing system in the summer months under reduced N inputs.

Production and Nutritive Value of Grazed Simple and Complex Forage Mixtures

2007 ◽  
Vol 99 (3) ◽  
pp. 814-821 ◽  
Author(s):  
A. Deak ◽  
M. H. Hall ◽  
M. A. Sanderson ◽  
D. D. Archibald
Keyword(s):  
Nutritive Value ◽  
Forage Mixtures

scholarly journals Bahiagrass (Paspalum notatum Flueggé): Overview and Pasture Management

EDIS ◽  
2019 ◽  
Vol 2019 (4) ◽  
pp. 10
Author(s):  
Marcelo Wallau ◽  
Joao Vendramini ◽  
Jose Dubeux ◽  
Ann Blount
Keyword(s):  
Nutritive Value ◽  
Original Version ◽  
Paspalum Notatum ◽  
Animal Performance ◽  
Forage Production ◽  
Pasture Management

This 10-page document discusses bahiagrass forage cultivars, forage production, nutritive value, animal performance, planting, pasture renovation, management, and more. Written by Marcelo Wallau, Joao Vendramini, José Dubeux, and Ann Blount, and published by the UF/IFAS Agronomy Department, revised July 2019. https://edis.ifas.ufl.edu/ag342 Original version: Newman, Yoana, Joao Vendramini, and Ann Blount. 2010. “Bahiagrass (Paspalum Notatum): Overview and Management”. EDIS 2010 (4). https://journals.flvc.org/edis/article/view/118607.

Nutritive value and morphological characteristics of Mombaça grass managed with different rotational grazing strategies

2019 ◽  
Vol 157 (7-8) ◽  
pp. 592-598
Author(s):  
S. C. Da Silva ◽  
A. A. O. Bueno ◽  
R. A. Carnevalli ◽  
G. P. Silva ◽  
M. B. Chiavegato
Keyword(s):  
Nutritive Value ◽  
Morphological Characteristics ◽  
Statistical Design ◽  
Panicum Maximum ◽  
Forage Production ◽  
Light Competition ◽  
Area Index ◽  
Light Utilization ◽  
Morphological Composition ◽  
Acid Detergent Fibre

AbstractLight competition increases and plants’ growth pattern change to optimize light utilization when the leaf area index increases. It has been previously shown that using 95% canopy light interception (LI) as a grazing frequency criterion resulted in a greater proportion of leaves and a lower proportion of stem. The objective of the study was to characterize the forage production, morphological composition and nutritive value of Panicum maximum cv Mombaça. The experiment was carried out during summer, autumn–winter and spring. Treatments corresponded to combinations of two pre-grazing conditions (95% and maximum LI at pre-grazing; LI95% and LIMax, respectively) and two post-grazing heights (PGHs; 30 and 50 cm). The statistical design was a randomized complete block, with a 2 × 2 factorial arrangement. Swards managed with LI95% had greater proportions of leaves and lower proportions of stems compared to LIMax. Leaf proportion was lower during autumn–winter compared to summer and spring. The LI95% had greater crude protein (CP) and digestibility (IVOMD), and lower acid detergent fibre (ADF) concentrations than LIMax. The 50 cm PGH pastures had greater CP content and IVOMD, and lower ADF content than 30 cm PGH pastures. Lower IVOMD was observed during autumn–winter than summer and spring. The variability observed on morphological characteristics was primarily associated with seasonality, whilst the nutritive value was primarily affected by grazing management. The pre-grazing target of LI95% combined with 50 cm PGH was the combination that resulted in an increased proportion of leaves, decreased stems in basal stratum and the greatest nutritive value of the produced forage.

scholarly journals Forage Production and Economic Performance of Pasture Rejuvenation Methods in Northern Alberta, Canada

2018 ◽  
Vol 7 (2) ◽  
pp. 94 ◽  
Author(s):  
Akim Omokanye ◽  
Calvin Yoder ◽  
Lekshmi Sreekumar ◽  
Liisa Vihvelin ◽  
Monika Benoit
Keyword(s):  
Economic Performance ◽  
Nutritive Value ◽  
Fertilizer Application ◽  
Forage Production ◽  
Seeding Method ◽  
Beef Producers ◽  
Beef Cattle Production ◽  
Direct Input ◽  
The Cost ◽  
Northern Alberta

Producing high quality forage and maintaining productive pastures is a major challenge that beef producers encounter, as rejuvenation is a complex and costly challenge. This is part of a series of papers looking at potential options and methods of rejuvenation to improve the productivity of older forage stands in northern Alberta. The methods of rejuvenation investigated were sub-soiling, break & re-seeding, a combination of manure application plus subsoiling, high stock density grazing, bale grazing, pasture rest, as well as direct seeding in spring and fall. In this series, forage dry matter (DM) yield, forage nutritive value and economic performance are presented and discussed. The top 5 forage DM yielders were bale grazing, manure + subsoil in fall, break & re-seeding, high stock density grazing and fertilizer application in that order. In both years, bale grazing consistently produced higher forage DM yield than other methods including control, with bale grazing giving up to 100% higher yield at site-1 and 219% at site- 2 for the 2-year total forage DM. Most forage nutritive value parameters measured were similar for the rejuvenation methods investigated. A simplified economic analysis done in this study showed that the direct input cost of rejuvenation an old forage stand was higher with the break & re-seeding method than other methods. However, for bale grazing, when the cost of hay bales used was factored in, then the cost of bale grazing far exceeded those of other methods including break & re-seeding. The implications of the results obtained in this study in relation to beef cattle production system are highlighted.

scholarly journals PRODUCTION AND NUTRITIVE VALUE OF CANARANA ERECTA LISA (Echinocloa piramidalis Lam.) IN RESPONSE TO HARVEST INTERVALS

2019 ◽  
Vol 20 ◽  
Author(s):  
Angela Maria de Vasconcelos ◽  
Mauricio Cesio Araujo Dutra ◽  
Robson Mateus Freitas Silveira ◽  
Valdson José da Silva ◽  
Luís Alfredo Pinheiro Leal Nunes ◽  
...  
Keyword(s):  
Nutritive Value ◽  
Block Design ◽  
Neutral Detergent Fiber ◽  
Experimental Unit ◽  
Forage Production ◽  
Dry Matter Digestibility ◽  
Forage Digestibility ◽  
Randomized Complete Block Design ◽  
Harvest Intervals

Abstract The objective of this study was to compare and explain the variations in the production and nutritive value of canarana erecta lisa grass (Echinocloa pyramidalis Lam.) at different harvest intervals. The treatments corresponded to the cut intervals of 20, 27, 34, 41, 48, 55, 62, and 69 days. The experimental design was a randomized complete block design with three replications. Each experimental unit had 6m2 (3m ×2m). The variables studied included forage production, canopy height, and nutritive value o harvested forage. Forage production varied from 11517 to 12324 kg ha-1; Plant heights from 48.8 to 234 cm; Neutral detergent fiber (NDF) from 68.8% to 71.13%; Acid detergent fiber (ADF) from 36.20% to 44.15%; Crude protein (CP) from 11.43% to 5.85% and in “in vitro” dry matter digestibility (IVDMD) from 63.30% to 47.42%. These values indicated that the nutritive value of canarana erecta lisa was reduced at longer harvest intervals. It is recommended to harvest the grass at 35 days of regrowth favoring productivity, nutritive value and forage digestibility.

scholarly journals Effect of prescribed fire on forage production and nutritive value of the perennial grass Saccharum griffithii

Phyton ◽  
2014 ◽  
Vol 83 (1) ◽  
pp. 415-421
Author(s):  
Gul B ◽  
M Islam ◽  
S Ahmad ◽  
S Gul
Keyword(s):  
Prescribed Fire ◽  
Nutritive Value ◽  
Perennial Grass ◽  
Forage Production

scholarly journals Proximate Composition, Bioactive Compounds, and Antioxidant Potential of Wild Halophytes Grown in Coastal Salt Marsh Habitats

Molecules ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 28
Author(s):  
Yasser A. El-Amier ◽  
Walid Soufan ◽  
Khalid F. Almutairi ◽  
Nouf S. Zaghloul ◽  
Ahmed M. Abd-ElGawad
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Proximate Composition ◽  
Nutritive Value ◽  
Nile Delta ◽  
Soluble Sugars ◽  
Forage Production ◽  
Coastal Salt Marsh ◽  
Total Carbohydrates ◽  
Nile Delta Coast

Halophytes have been characterized as a potential resource for fiber, food, fodder, and bioactive compounds. Proximate composition, bioactive compounds, and antioxidant activity of five wild dominant halophytes (Arthrocnemummacrostachyum, Halocnemumstrobilaceum, Limoniastrummonopetalum, Limoniastrumpruinosum, and Tamarix nilotica) naturally growing along the Nile Delta coast were assessed. The soil supporting these halophytes was sandy to sand-silty, alkaline, with low organic carbon, and relatively high CaCO3. H. strobilaceum attained the highest moisture content, ash, crude fiber, lipids, and total soluble sugars. L. monopetalum showed the highest content of crude protein (18.00%), while T. nilotica had the highest content of total carbohydrates. The studied halophytes can be ranked according to their nutritive value as follows: H.strobilaceum > L.monopetalum > A.macrostachyum > L.pruinosum > T. nilotica. A. macrostachyum attained the highest amount of Na+, K+, Ca2+, and Mg2+. A. macrostachyum showed a high content of phenolic compounds, while H.strobilaceum was rich in tannins and saponin contents. The MeOH extract of A. macrostachyum and H. strobilaceum exhibited substantial antioxidant activity. The present results showed that the studied halophytes could be considered as candidates for forage production or used as green eco-friendly natural resources for bioactive compounds.

scholarly journals Potencial forrajero de nueve híbridos de maíz en la zona alta lechera de Costa Rica

2018 ◽  
Vol 29 (1) ◽  
pp. 153
Author(s):  
William Sánchez-Ledezma ◽  
Carlos Hidalgo-Ardón
Keyword(s):  
Costa Rica ◽  
Dry Matter ◽  
Nutritive Value ◽  
Forage Production ◽  
Maize Hybrids ◽  
Dry Matter Digestibility ◽  
Randomized Design ◽  
Maize Varieties ◽  
Hybrid Maize

In the area, there are no selected maize materials for forage production, tall and long-cycle creole maize varieties are used, there are overturning problems that make management difficult. The study was conducted in the dairy highlands of Costa Rica at an altitude of 2200 m, between 2008 and 2009. This study was made in order to compare the forage production and the nutritive value of nine maize hybrids (Zea mays) with local oats (Avena sativa) in a randomized design of complete blocks and three replicates. Harvesting took place at grain stage called milky-doughy (4 and 6.5 months for oats and maize hybrids). Oats had a dry matter yield (14 t/ha) and dry matter digestibility (8.7 t/ha) higher (P<0.0001) than hybrids (7.8 and 4.9, respectively). Although hybrids showed a higher (p<0.05) percentage of dry matter (mean 19.2) and in vitro dry matter digestibility (mean 63.2), oats had percentages of 16.7 and 61.9 within the same order. The percentage of crude protein in oats (14.2) was higher (p <0.05) than maize hybrids (mean 10.9). The creole oat variety showed a higher forage resource than the evaluated hybrid maize.

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