YIELD AND NUTRITIVE VALUE OF WHOLE-PLANT CEREALS AT A SILAGE STAGE

1974 ◽  
Vol 54 (4) ◽  
pp. 621-624 ◽  
Author(s):  
J. N. TINGLE ◽  
W. K. DAWLEY

Ten cereal cultivars and two cereal mixtures were sown at two locations in 3 yr to determine the effects of species, cultivar and location on dry matter (DM) yield, protein and digestibility levels at the soft-dough stage. Jubilee barley (Hordeum vulgare L.) and a 40:60 mixture of Glen oats (Avena sativa L.) and Jubilee barley, respectively, produced significantly higher DM yields than Warrior and Piroline barley and Pitic 62 spring wheat (Triticum aestivum L.). Rosner triticale (Triticosecale Whitmack) was lower yielding than all cultivars except Warrior at one location. The average DM digestibility and protein levels for barley exceeded those for oats by 6.5 and 1.4 units, respectively. Likewise, the actual values for Pitic 62 spring wheat were 8.2 digestible units and 1.1 protein units above those of oats. Rosner triticale was intermediate between oats and barley for digestibility and crude protein. Jubilee in mixture with Glen produced more digestible DM than Pitic 62, Rosner, Sioux, Glen, Warrior and Piroline sown alone.

1977 ◽  
Vol 57 (3) ◽  
pp. 537-542 ◽  
Author(s):  
D. A. CHRISTENSEN ◽  
B. D. OWEN ◽  
G. STEACY ◽  
J. P. MTIMUNI ◽  
W. L. CROWLE

Seven cultivars of barley, oats and wheat were harvested at the mid-dough stage and stored in polyethylene-covered experimental silos of 700-kg capacity. Four steers weighing about 200 kg were fed each type of silage in order to determine voluntary intake and digestibility of energy and protein. The silages averaged 36.6% dry matter and 12.5% crude protein, with the wheat and barley silages containing significantly more protein than oat silage (P < 0.05). Digestibility of energy averaged 65.4%. The wheat and barley cultivars tended to contain higher digestible energy levels than oat cultivars. Digestibility of crude protein averaged 68.5% with no significant differences. Voluntary intake of dry matter (DMg/Wkg.75) was higher (P < 0.05) in oats than barley or most wheat cultivars. Intake of Glenlea wheat equalled Fraser oats and the unlicenced 1863–4 oat cultivar.


2018 ◽  
Vol 53 (9) ◽  
pp. 1045-1052
Author(s):  
Mateus Merlo Coelho ◽  
Lúcio Carlos Gonçalves ◽  
José Avelino Santos Rodrigues ◽  
Kelly Moura Keller ◽  
Gustavo Vinícius de Souza dos Anjos ◽  
...  

Abstract: The objective of this work was to evaluate the effects of re-ensiling and bacterial inoculation on the quality of corn silage. The experiment was carried out in a 2x2 factorial design with or without inoculant (association of Lactobacillus plantarum and Propionibacterium acidipropionici), and with re-ensiling after 36 hours of aerobic exposure or only ensiling of the whole plant of 'BRS 1055' corn. The fermentative quality, nutritional parameters, dry matter losses, aerobic stability, and microbiological counts of silages were evaluated. Re-ensiling caused an increase of pH and in acetic acid and propionic acid concentrations, as well as in the dry matter (DM), crude protein, neutral detergent fiber, and neutral detergent fiber crude protein contents. Conversely, there was a reduction in the nonfiber carbohydrates concentration and in in vitro dry matter digestibility for the re-ensiled material. All changes were explained by the higher-effluent production and DM loss of re-ensiled material that was subjected to two compactions. Microbiology was not altered by the treatments. The use of inoculant altered ash content, but it did not influence other parameters. In contrast, re-ensiling after 36 hours of aerobic exposure caused a reduction in the nutritive value of corn silage and accentuated the DM losses.


1975 ◽  
Vol 55 (1) ◽  
pp. 49-53 ◽  
Author(s):  
H. G. NASS ◽  
H. T. KUNELIUS ◽  
M. SUZUKI

A 3-yr study was conducted to determine the effects of high rates of N fertilizer (NH4NO3) on whole plant dry matter yields, crude protein and NO3-N concentrations and in vitro digestibility of dry matter of oats (Avena sativa L.), barley (Hordeum vulgare L.) and triticale (X Triticosecale Wittmack) harvested at early dough stage. Dry matter (DM) yields of barley only were significantly increased by N applications over the zero N rate every year. Split applications of N at seeding and stem elongation did not generally result in higher DM yields than the corresponding single applications of N at seeding. The crude protein concentration ranged from 5.1 to 12.1% in the zero N check plot and from 7.1 to 14.9% in the N-fertilized plots. The NO3-N concentration in tissue was generally less than 0.10%, although NO3-N concentrations up to 0.34% were recorded in oats at 200–300 kg N/ha rates. For barley and triticale, the mean in vitro digestibility of DM was 57.2 and 58.3%, respectively, while the mean in vitro digestibility of DM for oats was much lower at 46.9%. In vitro digestibility of DM was affected very little by rates of N. The limitations in using cereals for forage are discussed.


1980 ◽  
Vol 60 (4) ◽  
pp. 1063-1070 ◽  
Author(s):  
A. J. LEYSHON ◽  
C. A. CAMPBELL ◽  
F. G. WARDER

The objective of this study was to compare the effects of NO3 and NH4 forms of nitrogen on the growth and yield of spring wheat and barley. Two growth-room experiments were carried out using spring wheat (Triticum aestivum L. ’Manitou’) in both experiments and barley (Hordeum vulgare L. ’Conquest’) in the second. NO3 or NH4-N plus the nitrification inhibitor nitrapyrin were applied at rates from 23 to 360 kg N/ha. Temperatures were 27/12 °C (day/night) and soil moisture was maintained at between −0.05 and −1.0 bars by frequent watering. NO3-N-treated plants were taller, and had thicker stems and more spikelets/spike than NH4-N-treated plants. The NH4-N-treated plants produced more spikes and matured faster initially, although by anthesis stage there was little difference in maturity between the NO3- and NH4-N-treated plants. There was no differential effect of nitrogen source on total dry matter at maturity, although dry matter increased in proportion to nitrogen rate. Grain yield of the NH4-N-fed plants was higher than that of the NO3-N-fed plants, especially at the higher nitrogen rates. This was due primarily to the effect on number of spikes produced and secondarily on seed set. It is suspected that denitrification losses of nitrogen from the NO3-N-treated soil contributed to the differential response to the two sources, but there was circumstantial evidence to suggest that some of the difference may have been due to the inherent nature of the two sources which might have affected their ease of metabolism by the plant.


1973 ◽  
Vol 53 (2) ◽  
pp. 251-256 ◽  
Author(s):  
M. R. KILCHER ◽  
J. E. TROELSEN

Two oat (Avena sativa L.) cultivars, Harmon and Sioux, and an unlicensed cultivar of Avena orientalis L., referred to as "Yorkton," were harvested at the early leaf, before boot, boot, headed, early bloom, late bloom, milk, dough, and ripe stages. Yorkton gave smaller yields than the other two cultivars at all stages after heading, but was slightly more leafy. Percent leaves by weight for all cultivars varied from near 90% in first cut to about 14% when ripe. Crude protein of leaves declined from 30 to 6% over the nine cuttings whereas that of stems went from 24 to 5%. Leaf lignin increased from 35 to 50% through the whole range of growth whereas stem lignin increased more rapidly from 45 to 70% in a shorter period of time. Leaves had 20% more energy than did stems. They were also 10% more digestible as determined by in vitro digestible organic matter. As whole plant feed there was no advantage in delaying harvest beyond the milk to soft dough stage.


Author(s):  
Sibel Erdoğan ◽  
Murat Demirel

Silage quality and nutritive value of sunflower silages ensiled with different level of fibrolytic enzymes at blooming, milk and dough stages were investigated. Fibrolytic enzyme complex (Viscozyme® L, V2010 Sigma Novozyme) was applied 0, 1, 1.5 and 2.5 ml/kgDM at ensiling. The dry matter (DM) yield increased with each increment of the maturity stage. Dry matter (DM), ether extract (EE) and crude cellulose (CC) contents of silages increased also in each delay in harvesting, while crude protein (CP), NDF and ADF contents of silages were the highest in blooming stage. The pH was higher in sunflower silage harvested at dough stage when compared to blooming stage, while acetic, propionic and butyric acid concentrations were all higher in blooming stage, although there were no differences in lactic acid concentrations among harvesting periods. Although silage structural carbohydrate composition was not significantly affected by any enzyme dose, Dose III enzyme treatment at the dough was associated with the highest concentration of lactic acid. Overall, there was no profound effect of enzyme supplementation on nutritive value and silage characteristics of sunflower silage.


1975 ◽  
Vol 55 (4) ◽  
pp. 987-993 ◽  
Author(s):  
P. D. WALTON

The three cereal crops oats (Avena sativa L.), barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) were tested for forage yields alone and in combinations with each other as well as in combinations with peas (Pisum sativum L.), soybeans (Glycine max. L.) and rape (Brassica napus L.) at three sites and in 3 yr. A range of seeding rates and crop combinations was used. While high yields of forage were obtained from these annual crops, the most favorable yields would not justify the additional expense of cultivation and establishment when compared with perennial forage yields over the same 3-yr period. Oats gave the best yields where seasons were longer and rainfall higher whereas barley gave the highest yields in areas with a drier, shorter season. Higher seeding rates improved yields and reduced fibre contents for all crops over the range tested. This increase was not, however, substantial and with the possible exception of oats, high seed rates would not be economical. The presence of a non-cereal in the mixture always reduced yield, but peas in a mixture with oats gave an increased yield of crude protein per hectare. Where a mixture of a cereal with a non-cereal was used, peas with oats yielded more than rape with oats, while rape with barley yielded more than peas with barley. Seeding the cereal and the non-cereal in alternate rows reduced yields for all the crop combinations tested. Yields were increased by delaying the harvest date beyond the time when the grain was in the dough stage.


1990 ◽  
Vol 70 (1) ◽  
pp. 51-60 ◽  
Author(s):  
D. T. GEHL ◽  
L. D. BAILEY ◽  
C. A. GRANT ◽  
J. M. SADLER

A 3-yr study was conducted on three Orthic Black Chernozemic soils to determine the effects of incremental N fertilization on grain yield and dry matter accumulation and distribution of six spring wheat (Triticum aestivum L.) cultivars. Urea (46–0–0) was sidebanded at seeding in 40 kg N ha−1 increments from 0 to 240 kg ha−1 in the first year and from 0 to 200 kg ha−1 in the 2 subsequent years. Nitrogen fertilization increased the grain and straw yields of all cultivars in each experiment. The predominant factor affecting the N response and harvest index of each cultivar was available moisture. At two of the three sites, 91% of the interexperiment variability in mean maximum grain yield was explained by variation in root zone moisture at seeding. Mean maximum total dry matter varied by less than 12% among cultivars, but mean maximum grain yield varied by more than 30%. Three semidwarf cultivars, HY 320, Marshall and Solar, had consistently higher grain yield and grain yield response to N than Glenlea and Katepwa, two standard height cultivars, and Len, a semidwarf. The mean maximum grain yield of HY 320 was the highest of the cultivars on test and those of Katepwa and Len the lowest. Len produced the least straw and total dry matter. The level of N fertilization at maximum grain yield varied among cultivars, sites and years. Marshall and Solar required the highest and Len the lowest N rates to achieve maximum grain yield. The year-to-year variation in rates of N fertilization needed to produce maximum grain yield on a specific soil type revealed the limitations of N fertility recommendations based on "average" amounts and temporal distribution of available moisture.Key words: Wheat (spring), N response, standard height, semidwarf, grain yield


2011 ◽  
Vol 40 (1) ◽  
pp. 60-68 ◽  
Author(s):  
Hernan Vielmo ◽  
Amadeu Bona Filho ◽  
André Brugnara Soares ◽  
Tangriani Simioni Assmann ◽  
Paulo Fernando Adami

The objective of this study was to evaluate the effect of different doses of liquid swine slurry on dry matter accumulation rate and nutritive values (crude proten and neutral detergent fiber) of Tifton 85 grass pasture cultivated in southwestern Paraná from October 2005 to March 2006. It was used a complete random experimental design in a 4 x 4 factorial scheme composed of four doses of swine slurry in the plots (0, 80, 160 and 320 m³/ha) and four consecutive cuts in the subplots of the pasture. It was carried out two applications, one in the beginning of the experiment and other after 80 days. Cuts were performed every time pasture height was 40 cm. There was a dose versus cut interaction for all variables. Swine slurry promoted increase on dry matter accumulation rate only on the first cut after its application (cuts 1 and 3). Dry matter maximal yield (24.2 t/ha) was obtained at 249 m³/ha of swine slurry manure (143 and 106 m³/ha, respectively for applications 1 and 2), corresponding to 450 kg of N/ha. Percentage of crude protein increases and neutral detergent fiber of Tifton 85 grass decreases as dose of swine slurry increases, improving forage nutritive value. Use efficiency and nitrogen recovery rate decrease with addition of swine slurry doses.


1959 ◽  
Vol 52 (2) ◽  
pp. 230-237 ◽  
Author(s):  
D. J. C. Jones

1. Four varieties of marrow stem kale, three of thousand headed kales, Hungry Gap Kale and Rape-Kale were grown at three centres in mid-Wales. They were sampled in the early winter period and separate leaf and stem samples analysed for the proximate constituents and minerals.2. Leaf to stem ratios were measured on both a green and dry matter basis and the latter values used to calculate whole plant values for the chemical constituents.3. The leaves of the marrow stem kales were higher in dry matter than the stems, except in the case of the Purple Stem Kale. This variety resembled the thousand headed and rape-type kales in having a higher dry matter in the stems. On a dry matter basis, the leaves of all the varieties were richer than the stems in ether extract, crude protein, total ash and all the minerals except potassium and sodium. These elements occurred to a greater extent in the stems of the fleshy stemmed marrow stem kales than in the leaves. The stems were higher in crude fibre and nitrogen-free extractives.4. The leaves of the rape-type kales were higher than those of the other varieties in silica, phosphorus and potassium. They were the best source of phosphorus on a whole plant basis. The marrow stem kales had considerably higher leaf and stem values for sodium and were markedly superior to the other varieties as a source of the element.


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