scholarly journals Storage of wheat at high moisture

2010 ◽  
pp. 111-114
Author(s):  
Laslo Ruska ◽  
Adrian Timar

Deterioration rates were determined for 15-19% moisture content wheat (Dropia cultivar) stored at constant temperatures.Deterioration rates were determined by measuring germination capacity of the grain and respiration rates of grain. Safe storagetime was defined as the time for germination to decrease to 90%. Safe storage times of 19% m.c. wheat stored at constanttemperatures ranged from 2.5 d at 30 and 35°C to 37 d at 10°C. Deterioration rates of 19% m.c. wheat stored with a step decreasein storage temperatures (35-25, 30-20, 25-20, and 20-15°C) were determined and safe storage times were satisfactorily predicted.Safe storage times of 17% m.c. wheat were 5, 7, and 15 d at 35, 30, and 25°C, respectively. Respiration rates and germinationpercentages of 15 and 16% m.c. wheat stored at 25°C remained constant for 70 d. The respiration rates of 17-19% m.c. wheat at25°C increased while the germination percentages decreased with storage time. Germination dropped from 98 to 92-89% when thedry matter losses were about 0.05% and visible mould occurred when the dry matter losses were about 0.1% in 17-19% m.c.wheat.

1970 ◽  
Vol 50 (3) ◽  
pp. 705-709 ◽  
Author(s):  
L. G. YOUNG

Two trials were conducted involving 44 individually fed growing-finishing pigs to evaluate the effect of corn moisture content and method of processing of corn on performance. Digestible energy values of the diets were determined. When pigs had free access to feed and water, those fed high moisture corn consumed less dry matter and gained less rapidly than those fed artificially dried corn. The digestible energy values of diets containing whole corn were less than those of diets containing rolled or ground corn. The gain/feed ratio for diets containing whole corn was lower in the first trial but similar to other diets in the second trial.


1975 ◽  
Vol 85 (3) ◽  
pp. 385-393 ◽  
Author(s):  
N. M. Fisher ◽  
P. T. Gooderham ◽  
J. Ingram

SUMMARYAn experiment is described in which plots of a silt loam soil were compacted by ploughing and rotary cultivation when the moisture content was high. Kale and barley were grown on these plots in 2 years.Compaction of the soil was not as great as anticipated, but there were marked reductions due to wet cultivation in the dry-matter yield of kale and the vegetative growth of the young barley. Seed yield of barley was relatively unaffected, although there was a significant reduction due to wet ploughing in one year.The implication of these results for experimentation on the effects of soil structure on crop yield are discussed.


1988 ◽  
Vol 68 (3) ◽  
pp. 779-786 ◽  
Author(s):  
P. H. ROBINSON ◽  
J. J. KENNELLY

High-moisture barley (HMB) was ensiled in polyethylene silage bags. Treatments applied to 30% moisture HMB as a percentage of dry matter (DM) were: none, 1% ammonia, 2% ammonia, and 1.5% sulphur dioxide. A fifth treatment was the addition of 1.5% sulphur dioxide to 20% moisture HMB. Barley samples were ruminally incubated to estimate degradability of DM and nitrogen (N). Ruminally incubated bags were also introduced to the duodenal cannulae and collected in feces to estimate true whole-tract digestion. Sulphur dioxide treatment, or moisture content, had no influence on ruminal degradability, with the exception of increased degradation rate of potentially degradable N for 20 vs 30% HMB, or whole-tract true digestion. Ammoniation resulted in net reduction in rate of ruminal DM release due to shift of soluble DM to the potentially degradable fraction, and decrease in the potentially degradable fraction degradation rate. Ammoniation increased barley N content up to 44% with no change in rate of ruminal N release. Whole-tract true DM digestion was higher for ammoniated barley but N digestion was not influenced. Sulphur dioxide appears to offer no advantages beyond grain preservation, whereas ammoniation offers potential by reducting rate of ruminal DM release, and providing a source of slow release nonprotein N, without affecting post-ruminal digestibility. Key words: High-moisture barley, ammonia, sulphur dioxide


1970 ◽  
Vol 50 (3) ◽  
pp. 711-715 ◽  
Author(s):  
L. G. YOUNG ◽  
R. G. BROWN ◽  
B. A. SHARP

Two trials, involving a total of 144 pigs, were conducted to evaluate the effect of corn moisture content and preservation of corn with propionic acid on performance. Treating of corn containing approximately 76% dry matter with 1.5% w/w of propionic acid and storing in bins open to air resulted in no apparent problems in terms of heating or mold growth during storage. Pigs fed high moisture corn gained at a similar rate and had a feed efficiency equal to or better than pigs fed dry corn (90% dry matter). The addition of propionic acid to corn fed to pigs in groups improved rate of gain. A total of 13 pigs in the two trials died due to hemorrhaging the cause of which is unknown, but death did not appear related to dietary treatment.


2020 ◽  
Vol 41 (3) ◽  
pp. 1037
Author(s):  
Keuven dos Santos Nascimento ◽  
Ricardo Loiola Edvan ◽  
Francigefeson Linhares dos Santos Ezequiel ◽  
Felipe Luênio de Azevedo ◽  
Lucas de Souza Barros ◽  
...  

The objective of this study is to characterize six forage grass cultivars used for hay production. The morphological and morphometric characteristics of these cultivars were determined using a completely randomized block design, and the rates of loss of dry matter and crude protein (CP) were evaluated using a completely randomized design with a 6 x 5 factorial scheme (six cultivars vs. five drying periods [0, 1, 2, 3 and 4 hours]) and three repetitions. Morphological and morphometric characteristics and the chemical composition of the cultivars were analyzed using the Scott-Knott test, and the drying time was assessed using linear regression analysis at a level of significance of 5%. There was a significant effect (p < 0.05) of morphological and morphometric characteristics, except for stem thickness (p=0.1) and the live-to-dead biomass ratio (p=0.27). The Massai cultivar presented a higher leaf to stem ratio (1.23 ± 0.60). There was an increased linear response (p < 0.05) for the rate of water loss in the six evaluated cultivars. The Massai cultivar had a safe storage moisture content (80% dry matter) after 3 hours and 11 minutes of sun exposure, and the drying rate was 10.34% per hour of sun exposure. The cultivars Paredão and Marandú showed a decreasing linear effect of CP content across the harvest period, corresponding to 22.07% and 21.38 ± 0.55% in fresh plants, respectively, and 20.13% and 18.11 ± 0.55% after 4 hours of sun exposure, respectively. The Massai cultivar had the most efficient rate of water loss, reaching a safe storage moisture content in 3 hours and 6 minutes, with a CP content of 18.63%.


2001 ◽  
Vol 37 (3) ◽  
pp. 303-312 ◽  
Author(s):  
C Karunakaran ◽  
W.E Muir ◽  
D.S Jayas ◽  
N.D.G White ◽  
D Abramson

Author(s):  
Faten Hammami ◽  
Salah Ben Mabrouk ◽  
Abdelkhader Mami

High moisture content wheat kernels are subject to elevated respiration rates due to enzyme activity and mould growth that reduce the dry grain and may produce sufficient energy which may be harmful to wheat quality. Grain aeration provides a powerful nonchemical stored grain insect management. Currently, aeration is a suitable and economical device to overcome this problem. The moisture management is vital to prevent spoilage in stored grain. The objective of this study is to investigate the influence of using low relative humidity (RH) aeration on the wheat moisture content. The numerical investigation based on heat and mass balances is developed and used to simulate the evolution of grain temperature and moisture under various air RH in a wheat storage silo. Results show that the dehumidification of blown air had greater potential for decreasing RH of interstitial air and wheat moisture at [Formula: see text]C temperature and RH of 40%, 50% and 60%.


2020 ◽  
Vol 33 (4) ◽  
pp. 264-272
Author(s):  
Cláudia M Serra-Ferreira ◽  
Agatha G Farias-Souza ◽  
Rita C Almeida-Mendonça ◽  
Melany Simões-Souza ◽  
Wagner R L Lopes-Filho ◽  
...  

Background: Tropical grasses, such as elephant grass, have high moisture content during its ideal phenological state for silage. High moisture content hinders proper preservation and reduces the nutritive value of silage due to secondary fermentation and production of effluents. Adding feed materials with high dry matter content, such as murumuru (Astrocaryum murumuru) meal, is a potential alternative to improve silage yield. Objective: To determine the effects of including murumuru meal (0, 7, 14, 21, and 28%) on the fermentative characteristics, microbiological activity, aerobic stability, and chemical composition of elephant grass silages. Methods: A completely randomized design with five treatments and five replicates was used. Elephant grass was collected at 60 d of age, minced, and homogenized with murumuru meal. The mass was placed in experimental 15-L silos. The silos were collected and analyzed 45 d later. Results: Effluent production decreased (p<0.05) as the proportions of murumuru meal in silage increased. A quadratic effect (p<0.05) was observed on dry matter recovery. An increase (p<0.05) was observed in dry matter content, a decrease (p<0.05) in the neutral detergent fiber content, and an increase (p<0.05) in the non-fibrous carbohydrate content with the inclusion of murumuru meal. Conclusions: Addition of murumuru meal improves chemical composition and does not affect the fermentative characteristics of elephant grass silage, while it reduces effluent losses. Nevertheless, the inclusion of murumuru meal in the elephant grass silage decreased the time of aerobic stability.


1970 ◽  
Vol 74 (3) ◽  
pp. 423-432 ◽  
Author(s):  
R. Paquay ◽  
R. De Baere ◽  
A. Lousse

SUMMARYStatistical analyses were carried out on the data obtained, under strictly controlled conditions in metabolism stalls, from 219 adult non-pregnant dry cows fed on seventyone different rations. The authors have calculated and studied the correlations between total water intake, faecal and urinary water losses, absorbed and available water, and the seventy-five other factors which were analysed in each of the seventy-one rations. Total water intake closely correlated with the dry-matter intake and also with the dry-matter content of the diet; forages with high moisture content enhance the total water intake which is also significantly correlated to the intake of nitrogen, fat and some mineral elements.Total water intake closely correlated with the dry-matter intake and also with the dry-matter content of the diet; forages with high moisture content enhance the total water intake which is also significantly correlated to the intake of nitrogen, fat and some mineral elements.Faecal water losses are strongly correlated with the dry-matter intake and on the faecal dry matter. Moisture content of the diet has no significant effect but increasing pentosans and crude-fibre intake enhance the losses.Urinary water excretion is closely related to the amount of absorbed water and to the dry-matter content of the diet; a highly significant correlation also exists between urinary water and urinary nitrogen and potassium. The amount of water excreted in the urine may affect the utilization of digestible nitrogen and potassium.Available water is increased logarithmically when total water intake rises arithmetically. Feeds with high moisture content thus enhance the amount of available water.


2021 ◽  
Vol 64 (4) ◽  
pp. 1365-1372
Author(s):  
Ana B. Gatsakos ◽  
Thomas B. Scatolini ◽  
Mary-Grace C. Danao ◽  
Richard S. Gates ◽  
Kent D. Rausch

HighlightsRespiration rate increased with the percentage of split soy beans.The splits multiplier for soybeans appears to be more sensitive than the corn damage multiplier.The relationship between the split percentage and splits multiplier for soybeans is approximately linear.A value for the splits multiplier is provided for 18% moisture content soybeans stored at 35°C.Abstract. The objectives of this study were to compare the effects of 0% to 16% (w/w) splits content (xs) of soybeans stored at 35°C and 18% moisture content (w.b.) on dry matter loss rates (vDML) and to determine a splits multiplier (MS) for soybeans stored at these conditions, similar to the damage multiplier (MD) used in ASABE Standard D535 for shelled corn. Effects of percentage by weight splits (xs) on MS and safe storage time are expected to be greater than MD for corn because soybeans are prone to cracking and splitting, lipid oxidation, and protein degradation, all of which lead to grain dry matter and quality losses. Results indicated that vDML increased with increasing xs, and the mean vDML was 1.5 times greater for samples with 16% splits than for samples with 4% splits. The MS for soybeans was linearly correlated with xs, decreasing from 1.0 to 0.60 for 0% to 16% splits, respectively. Soybeans appeared to be more sensitive to percent by weight splits than corn was to the presence of damaged kernels. In Standard D535, the MD for corn only decreased from 1.0 to 0.8 when percent (w/w) damaged kernel content increased from 30% to 40%. In comparison, it should be noted that damage to soybeans was defined differently from damage to corn. This research is useful in defining MS for 18% moisture content soybeans stored at 35°C under hermetic conditions. The procedures outlined in this article may be used in the future to more formally define a soybean MS that covers a wider range of moisture contents, storage conditions, and possibly an MD based on other factors included in the USDA definitions of damaged soybean kernels. Keywords: Allowable storage time, Grain quality, Splits multiplier.


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